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"The Nassauer Haus or Schlüsselfeldersche Stiftungshaus in Nuremberg is a medieval residential tower made of so-called red castle sandstone. Although originally built in the Romanesque style, the house still features Gothic style elements after a few renovations. It is the last remaining residential tower in Nuremberg.
The tower is located in Lorenz's old town, opposite the Lorenz Church, at Karolinenstrasse 2.
The term “Nassauer Haus” is the name for the corner house, which has only been in use since the 19th century and is based on an erroneous reference to the German King Adolf of Nassau († 1298). Until then, the building was known as the Schluesselfelder Foundation House (since the early 18th century). However, descendants of the king from the Count's House of Nassau owned property further north of the Lorenzkirche in the 15th century.
The construction method for fortified tower houses or residential towers came in the 13th century from northern Italian cities to the German imperial cities that traded with them. “Family towers” were widespread in the (rather weakly fortified) trading centers to protect trading goods from raids, and also as status symbols for noble families who had moved to the cities. Several Italian-style family towers have been preserved in Regensburg. Around 1430 there were around 65 in Nuremberg, of which the Nassau House is the only one preserved.
The cellar (with an irregular ribbed vault) and the two lower floors date back to the 13th century. Around the 16th century, the vault of the cellar and the ground floor were raised. The hall-like cellar is now used as a tavern. The two upper floors, which are clearly distinguished from the small-scale structured masonry of the lower floors by their regular ashlar masonry in a reddish tint, belong to the 15th century. The original tower probably rose free-standing above the low wooden houses in the area and could also have had a wooden or half-timbered tower in the style of the Amorbach Templar house. At least the penultimate floor can be attributed to a renovation around 1422 by the then owner Jobst Haug. The top floor with its coat of arms frieze and the three pointed-helmet corner towers was given the existing shape around 1433 by Ulrich Ortlieb, who is also responsible for the choir. A pyramid-shaped hipped roof is placed on the tower.
The residential tower probably only became a “defensive tower” for romantic observers of the 19th century, who may have seen it as a unified structure, although the decorative crenellated wreath, the coat of arms frieze and the royal attribution may have contributed to this assessment. The most important external change is the installation of the arched openings on the ground floor in 1836; one of them was enlarged into a door around 1900. In the early days, the stone floors of the tower probably only had slit windows or embrasures and a high entrance.
Nuremberg (/ˈnjʊərəmbɜːrɡ/ NURE-əm-burg; German: Nürnberg [ˈnʏʁnbɛʁk]; in the local East Franconian dialect: Nämberch [ˈnɛmbɛrç]) is the largest city in Franconia, the second-largest city in the German state of Bavaria, and its 545,000 inhabitants make it the 14th-largest city in Germany.
Nuremberg sits on the Pegnitz, which carries the name Regnitz from its confluence with the Rednitz in Fürth onwards (Pegnitz→ Regnitz→ Main→ Rhine→ North Sea), and on the Rhine–Main–Danube Canal, that connects the North Sea to the Black Sea. Lying in the Bavarian administrative region of Middle Franconia, it is the largest city and unofficial capital of the entire cultural region of Franconia. The city is surrounded on three sides by the Reichswald, a large forest, and in the north lies Knoblauchsland (garlic land), an extensive vegetable growing area and cultural landscape.
The city forms a continuous conurbation with the neighbouring cities of Fürth, Erlangen and Schwabach, which is the heart of an urban area region with around 1.4 million inhabitants, while the larger Nuremberg Metropolitan Region has a population of approximately 3.6 million. It is the largest city in the East Franconian dialect area (colloquially: "Franconian"; German: Fränkisch).
Nuremberg and Fürth were once connected by the Bavarian Ludwig Railway, the first steam-hauled and overall second railway opened in Germany (1835). Today, the U1 of the Nuremberg Subway, which is the first German subway with driverless, automatically moving railcars, runs along this route. Nuremberg Airport (Flughafen Nürnberg "Albrecht Dürer") is the second-busiest airport in Bavaria after Munich Airport, and the tenth-busiest airport of the country.
Institutions of higher education in Nuremberg include the University of Erlangen-Nuremberg (Friedrich-Alexander-Universität Erlangen-Nürnberg), Germany's 11th-largest university, with campuses in Erlangen and Nuremberg and a university hospital in Erlangen (Universitätsklinikum Erlangen), Technische Hochschule Nürnberg Georg Simon Ohm and Hochschule für Musik Nürnberg. The Nuremberg exhibition centre (Messe Nürnberg) is one of the biggest convention center companies in Germany and operates worldwide.
Nuremberg Castle and the city's walls, with their many towers, are among the most impressive in Europe. Staatstheater Nürnberg is one of the five Bavarian state theatres, showing operas, operettas, musicals, and ballets (main venue: Nuremberg Opera House), plays (main venue: Schauspielhaus Nürnberg), as well as concerts (main venue: Meistersingerhalle). Its orchestra, the Staatsphilharmonie Nürnberg, is Bavaria's second-largest opera orchestra after the Bavarian State Opera's Bavarian State Orchestra in Munich. Nuremberg is the birthplace of Albrecht Dürer and Johann Pachelbel. 1. FC Nürnberg is the most famous football club of the city and one of the most successful football clubs in Germany. Nuremberg was one of the host cities of the 2006 FIFA World Cup.
Franconia (German: Franken, pronounced [ˈfʁaŋkŋ̍]; Franconian: Franggn [ˈfrɑŋɡŋ̍]; Bavarian: Frankn) is a region of Germany, characterised by its culture and Franconian dialect (German: Fränkisch).
Franconia is made up of the three Regierungsbezirke of Lower, Middle and Upper Franconia in Bavaria, the adjacent, Franconian-speaking, South Thuringia, south of the Thuringian Forest—which constitutes the language boundary between Franconian and Thuringian— and the eastern parts of Heilbronn-Franconia in Baden-Württemberg.
Those parts of the Vogtland lying in Saxony (largest city: Plauen) are sometimes regarded as Franconian as well, because the Vogtlandian dialects are mostly East Franconian. The inhabitants of Saxon Vogtland, however, mostly do not consider themselves as Franconian. On the other hand, the inhabitants of the Hessian-speaking parts of Lower Franconia west of the Spessart (largest city: Aschaffenburg) do consider themselves as Franconian, although not speaking the dialect. Heilbronn-Franconia's largest city of Heilbronn and its surrounding areas are South Franconian-speaking, and therefore only sometimes regarded as Franconian. In Hesse, the east of the Fulda District is Franconian-speaking, and parts of the Oden Forest District are sometimes regarded as Franconian for historical reasons, but a Franconian identity did not develop there.
Franconia's largest city and unofficial capital is Nuremberg, which is contiguous with Erlangen and Fürth, with which it forms the Franconian conurbation with around 1.3 million inhabitants. Other important Franconian cities are Würzburg, Bamberg, Bayreuth, Ansbach and Coburg in Bavaria, Suhl and Meiningen in Thuringia, and Schwäbisch Hall in Baden-Württemberg.
The German word Franken—Franconians—also refers to the ethnic group, which is mainly to be found in this region. They are to be distinguished from the Germanic people of the Franks, and historically formed their easternmost settlement area. The origins of Franconia lie in the settlement of the Franks from the 6th century in the area probably populated until then mainly by the Elbe Germanic people in the Main river area, known from the 9th century as East Francia (Francia Orientalis). In the Middle Ages the region formed much of the eastern part of the Duchy of Franconia and, from 1500, the Franconian Circle. The restructuring of the south German states by Napoleon, after the demise of the Holy Roman Empire, saw most of Franconia awarded to Bavaria." - info from Wikipedia.
Summer 2019 I did a solo cycling tour across Europe through 12 countries over the course of 3 months. I began my adventure in Edinburgh, Scotland and finished in Florence, Italy cycling 8,816 km. During my trip I took 47,000 photos.
Now on Instagram.
Am 2.Weihnachtstag habe ich mein Weihnachts-Overall mit Strickstrumpfhose, Tutu und Ballettschläppchen getragen.
Corpus Christi Ship Channel.
IMO number 9327504
Vessel Name IVER ABILITY
Ship Type Bitumen Tanker
Flag Gibraltar
Year of Build 2006
Length Overall (m) 129.00
Beam (m) 22.00
Since returning from my six month break I've been really resisting posting much from Snowdonia, and for those that know me, that is rather unusual. Truth is I've been working on something quite intensely for those six months and that overall has turned into a project lasting well over a year (one of those projects that you don't realise you've been doing until you are several months in).
The project is entitled 'Eryri - A Song for Snowdonia' and the reason for that will become clear in time, but I'll be presenting a large part of this work at the Meeting of Minds conference at the Rheged Centre in just a few weeks. The work basically represents a year of images from Snowdonia. In early 2017 I be publishing a small book containing all of the images from the project too...stay tuned for that.
This particular image comes from the project and is a scene I have had to return to maybe a dozen times over the last 12 months as I could never quite achieve what I wanted in my vision of the place, because of the conditions. This particular version was captured only last weekend and represents my best and favourite so far. The colour of autumn being at it's absolute height. The more I look at it the more I come to really love it. I know, that is not something I'd readily say about my own work. I hope you like it too.
Anyway, I'll be returning to this location on my next two workshops (12-13 and 26-27 Nov) so get in touch if you are interested in joining me and to receive a discount off the website price.
💢TOTSIPOP! Set Of Three Star Overall💢
❣ Totsipop
✅Totsipop_Infant - ✅Totsipop_Baby - ✅Totsipop_Toddler
Taxi :: 📌 maps.secondlife.com/secondlife/Desicalm/65/50/987
Marketplace 🔖📦 marketplace.secondlife.com/p/TOTSIPOP-Set-Of-Three-Star-O...
Overall I'm really satisfied with Snow White! I think she's so beautiful, her eyes and lips are fantastic! Her brows are a little thicker than I like, but I can deal. I love the hair! It seems more true to the film than sort of the longer 'page boy' cut the classic doll has. I love how her dress has hints of the 16th Century, but also a 30s floral print. While I love the cape, I am disappointed that it isn't removable, and I'd kind of like some sort of lace trim on the collar. Nothing over the top, just a small little trim. I am disappointed that she doesn't have accurate shoes, despite being shown wearing them in the artwork, but I guess DS feels you must be a Snow Queen to get original shoes and not Princess Snow.
UPDATE 16th June 2010:
I can't believe it... IT WON!!
Me and Little Tiger are VERY HAPPY! Thank you to everyone who supported us!
www.feelingstitchy.com/2010/06/and-winner-is.html
joeysdreamgarden.blogspot.com/2010/06/guess-why-im-happy....
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UPDATE 16th June 2010:
VOTING HAS ENDED
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UPDATE 14th June 2010:
VOTING HAS COMMENCED! Vote for your favourite here: www.feelingstitchy.com/2010/06/cast-your-votes.html
and wish me and Little Tiger a bit of luck!
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UPDATE 9th June 2010:
This won the orange category! www.feelingstitchy.com/2010/06/orange-category-winner-rai...
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This is my entry for the Feeling Stitchy Rainbow Competition. I chose to design an embroidery in shades of orange, not only because orange is my favourite colour, but also because it would give me the opportunity to put Little Tiger into it! I based the Little Tiger you see here on a brooch that I made some time ago now. I also wanted to put in a representation of one of my favourite flowers, the California poppy. I love this flower for it's simple cupped shape, it's satiny petals and its beautiful bright golden orange colour which seems to glow in the sun. I think of them as "cups of sunshine"!
After I had sketched my design, I had to think about what fabric I'd use to embroider on. I decided that a plain background was a bit boring, so I hand tie-dyed a piece of calico to use, using Dylon "sunflower yellow" - hence the off-white circles of the background. The circles were created by gathering a bunch of fabric and tying a piece of string around it, so the dye doesn't reach the fabric under the string, and repeating this all over the fabric so make a pattern. I like this effect because for me, it makes me think of sun-drenched, relaxed summer festivals.
I chose to include lots of different types of stitches - and I used eight - because for me, that's what embroidery is all about! Showing the amazing variety of textures and shapes which can be created with just a needle, a bit of thread and some fabric. I love trying out new stitches, so I dived in (after a bit of practise first) and used long and short stitch (for the poppy petals) and ribbed spider's web (for the flower-like shapes in the "grass"). I also used straight stitch in a pattern I've never used before, shown to me by my good friend Claire (thanks Claire! bet you didn't expect that, did you! hahaha!) I also used stem stitch (the sun's rays), french knots (the sun and Little Tiger's eye "twinkles"), satin stitch (his eyes and nose), chain stitch worked in close rows as a filling stitch (Little Tiger's fur) and back stitch (the poppies' stems).
Apart from enjoying this challenge just for the embroidery, it taught me a few things. The main lesson was probably that I always underestimate how long a piece of work is going to take! I spent at least 50 hours on the embroidery part of this piece (excluding the time I spent in sketching the original design). I also learnt that you can do a lot with a very limited colour palette, and something that I am going to explore further.
Well, I enjoyed making this piece, but I hope you enjoy looking at it almost as much!
Best wishes
Joey x
Common Starling (Sturnus vulgaris)
The common starling (Sturnus vulgaris), also known as the European starling, or in the British Isles just the starling, is a medium-sized passerine bird in the starling family, Sturnidae. It is about 20 cm (8 in) long and has glossy black plumage with a metallic sheen, which is speckled with white at some times of year. The legs are pink and the bill is black in winter and yellow in summer; young birds have browner plumage than the adults. It is a noisy bird, especially in communal roosts and other gregarious situations, with an unmusical but varied song. Its gift for mimicry has been noted in literature including the Mabinogion and the works of Pliny the Elder and William Shakespeare.
The common starling has about a dozen subspecies breeding in open habitats across its native range in temperate Europe and western Asia, and it has been introduced to Australia, New Zealand, Canada, United States, Mexico, Peru, Argentina, the Falkland Islands, Brazil, Chile, Uruguay, South Africa and Fiji. This bird is resident in southern and western Europe and southwestern Asia, while northeastern populations migrate south and west in winter within the breeding range and also further south to Iberia and North Africa. The common starling builds an untidy nest in a natural or artificial cavity in which four or five glossy, pale blue eggs are laid. These take two weeks to hatch and the young remain in the nest for another three weeks. There are normally one or two breeding attempts each year. This species is omnivorous, taking a wide range of invertebrates, as well as seeds and fruit. It is hunted by various mammals and birds of prey, and is host to a range of external and internal parasites.
Large flocks typical of this species can be beneficial to agriculture by controlling invertebrate pests; however, starlings can also be pests themselves when they feed on fruit and sprouting crops. Common starlings may also be a nuisance through the noise and mess caused by their large urban roosts. Introduced populations in particular have been subjected to a range of controls, including culling, but these have had limited success except in preventing the colonisation of Western Australia.
The species has declined in numbers in parts of northern and western Europe since the 1980s due to fewer grassland invertebrates being available as food for growing chicks. Despite this, its huge global population is not thought to be declining significantly, so the common starling is classified as being of least concern by the International Union for Conservation of Nature.
Taxonomy and systematics
The common starling was first described by Carl Linnaeus in his Systema Naturae in 1758 under its current binomial name. Sturnus and vulgaris are derived from the Latin for "starling" and "common" respectively. The Old English staer, later stare, and the Latin sturnus are both derived from an unknown Indo-European root dating back to the second millennium BC. "Starling" was first recorded in the 11th century, when it referred to the juvenile of the species, but by the 16th century it had already largely supplanted "stare" to refer to birds of all ages. The older name is referenced in William Butler Yeats' poem "The Stare's Nest by My Window". The International Ornithological Congress' preferred English vernacular name is common starling.
The starling family, Sturnidae, is an entirely Old World group apart from introductions elsewhere, with the greatest numbers of species in Southeast Asia and sub-Saharan Africa. The genus Sturnus is polyphyletic and relationships between its members are not fully resolved. The closest relation of the common starling is the spotless starling. The non-migratory spotless starling may be descended from a population of ancestral S. vulgaris that survived in an Iberian refugium during an ice age retreat, and mitochondrial gene studies suggest that it could be considered as a subspecies of the common starling. There is more genetic variation between common starling populations than between the nominate common starling and the spotless starling. Although common starling remains are known from the Middle Pleistocene, part of the problem in resolving relationships in the Sturnidae is the paucity of the fossil record for the family as a whole.
Subspecies
There are several subspecies of the common starling, which vary clinally in size and the colour tone of the adult plumage. The gradual variation over geographic range and extensive intergradation means that acceptance of the various subspecies varies between authorities.
Birds from Fair Isle, St Kilda and the Outer Hebrides are intermediate in size between S. v. zetlandicus and the nominate form, and their subspecies placement varies according to the authority. The dark juveniles typical of these island forms are occasionally found in mainland Scotland and elsewhere, indicating some gene flow from faroensis or zetlandicus, subspecies formerly considered to be isolated.
Several other subspecies have been named, but are generally no longer considered valid. Most are intergrades that occur where the ranges of various subspecies meet. These include: S. v. ruthenus Menzbier, 1891 and S. v. jitkowi Buturlin, 1904, which are intergrades between vulgaris and poltaratskyi from western Russia; S. v. graecus Tschusi, 1905 and S. v. balcanicus Buturlin and Harms, 1909, intergrades between vulgaris and tauricus from the southern Balkans to central Ukraine and throughout Greece to the Bosporus; and S. v. heinrichi Stresemann, 1928, an intergrade between caucasicus and nobilior in northern Iran. S. v. persepolis Ticehurst, 1928 from southern Iran's (Fars Province) is very similar to S. v. vulgaris, and it is not clear whether it is a distinct resident population or simply migrants from southeastern Europe.
Description
The common starling is 19–23 cm (7.5–9.1 in) long, with a wingspan of 31–44 cm (12–17 in) and a weight of 58–101 g (2.0–3.6 oz).[15] Among standard measurements, the wing chord is 11.8 to 13.8 cm (4.6 to 5.4 in), the tail is 5.8 to 6.8 cm (2.3 to 2.7 in), the culmen is 2.5 to 3.2 cm (0.98 to 1.26 in) and the tarsus is 2.7 to 3.2 cm (1.1 to 1.3 in).
The plumage is iridescent black, glossed purple or green, and spangled with white, especially in winter. The underparts of adult male common starlings are less spotted than those of adult females at a given time of year. The throat feathers of males are long and loose and are used in display while those of females are smaller and more pointed. The legs are stout and pinkish- or greyish-red. The bill is narrow and conical with a sharp tip; in the winter it is brownish-black but in summer, females have lemon yellow beaks while males have yellow bills with blue-grey bases. Moulting occurs once a year- in late summer after the breeding season has finished; the fresh feathers are prominently tipped white (breast feathers) or buff (wing and back feathers), which gives the bird a speckled appearance. The reduction in the spotting in the breeding season is achieved through the white feather tips largely wearing off. Juveniles are grey-brown and by their first winter resemble adults though often retaining some brown juvenile feathering, especially on the head. They can usually be sexed by the colour of the irises, rich brown in males, mouse-brown or grey in females. Estimating the contrast between an iris and the central always-dark pupil is 97% accurate in determining sex, rising to 98% if the length of the throat feathers is also considered.
The common starling is mid-sized by both starling standards and passerine standards. It is readily distinguished from other mid-sized passerines, such as thrushes, icterids or small corvids, by its relatively short tail, sharp, blade-like bill, round-bellied shape and strong, sizeable (and rufous-coloured) legs. In flight, its strongly pointed wings and dark colouration are distinctive, while on the ground its strange, somewhat waddling gait is also characteristic. The colouring and build usually distinguish this bird from other starlings, although the closely related spotless starling may be physically distinguished by the lack of iridescent spots in adult breeding plumage.
Like most terrestrial starlings the common starling moves by walking or running, rather than hopping. Their flight is quite strong and direct; their triangular-shaped wings beat very rapidly, and periodically the birds glide for a short way without losing much height before resuming powered flight. When in a flock, the birds take off almost simultaneously, wheel and turn in unison, form a compact mass or trail off into a wispy stream, bunch up again and land in a coordinated fashion. Common starling on migration can fly at 60–80 km/h (37–50 mph) and cover up to 1,000–1,500 km (620–930 mi).
Several terrestrial starlings, including those in the genus Sturnus, have adaptations of the skull and muscles that help with feeding by probing. This adaptation is most strongly developed in the common starling (along with the spotless and white-cheeked starlings), where the protractor muscles responsible for opening the jaw are enlarged and the skull is narrow, allowing the eye to be moved forward to peer down the length of the bill. This technique involves inserting the bill into the ground and opening it as a way of searching for hidden food items. Common starlings have the physical traits that enable them to use this feeding technique, which has undoubtedly helped the species spread far and wide.
In Iberia, the western Mediterranean and northwest Africa, the common starling may be confused with the closely related spotless starling, the plumage of which, as its name implies, has a more uniform colour. At close range it can be seen that the latter has longer throat feathers, a fact particularly noticeable when it sings.
Vocalization
The common starling is a noisy bird. Its song consists of a wide variety of both melodic and mechanical-sounding noises as part of a ritual succession of sounds. The male is the main songster and engages in bouts of song lasting for a minute or more. Each of these typically includes four varieties of song type, which follow each other in a regular order without pause. The bout starts with a series of pure-tone whistles and these are followed by the main part of the song, a number of variable sequences that often incorporate snatches of song mimicked from other species of bird and various naturally occurring or man-made noises. The structure and simplicity of the sound mimicked is of greater importance than the frequency with which it occurs. In some instances, a wild starling has been observed to mimic a sound it has heard only once. Each sound clip is repeated several times before the bird moves on to the next. After this variable section comes a number of types of repeated clicks followed by a final burst of high-frequency song, again formed of several types. Each bird has its own repertoire with more proficient birds having a range of up to 35 variable song types and as many as 14 types of clicks.
Males sing constantly as the breeding period approaches and perform less often once pairs have bonded. In the presence of a female, a male sometimes flies to his nest and sings from the entrance, apparently attempting to entice the female in. Older birds tend to have a wider repertoire than younger ones. Those males that engage in longer bouts of singing and that have wider repertoires attract mates earlier and have greater reproductive success than others. Females appear to prefer mates with more complex songs, perhaps because this indicates greater experience or longevity. Having a complex song is also useful in defending a territory and deterring less experienced males from encroaching.
Singing also occurs outside the breeding season, taking place throughout the year apart from the moulting period. The songsters are more commonly male although females also sing on occasion. The function of such out-of-season song is poorly understood. Eleven other types of call have been described including a flock call, threat call, attack call, snarl call and copulation call.[29] The alarm call is a harsh scream, and while foraging together common starlings squabble incessantly. They chatter while roosting and bathing, making a great deal of noise that can cause irritation to people living nearby. When a flock of common starlings is flying together, the synchronised movements of the birds' wings make a distinctive whooshing sound that can be heard hundreds of metres (yards) away.
Behaviour and ecology
The common starling is a highly gregarious species, especially in autumn and winter. Although flock size is highly variable, huge, noisy flocks - murmurations - may form near roosts. These dense concentrations of birds are thought to be a defence against attacks by birds of prey such as peregrine falcons or Eurasian sparrowhawks. Flocks form a tight sphere-like formation in flight, frequently expanding and contracting and changing shape, seemingly without any sort of leader. Each common starling changes its course and speed as a result of the movement of its closest neighbours.
Very large roosts, exceptionally up to 1.5 million birds, can form in city centres, woodlands or reedbeds, causing problems with their droppings. These may accumulate up to 30 cm (12 in) deep, killing trees by their concentration of chemicals. In smaller amounts, the droppings act as a fertiliser, and therefore woodland managers may try to move roosts from one area of a wood to another to benefit from the soil enhancement and avoid large toxic deposits.
Huge flocks of more than a million common starlings may be observed just before sunset in spring in southwestern Jutland, Denmark over the seaward marshlands of Tønder and Esbjerg municipalities between Tønder and Ribe. They gather in March until northern Scandinavian birds leave for their breeding ranges by mid-April. Their swarm behaviour creates complex shapes silhouetted against the sky, a phenomenon known locally as sort sol ("black sun"). Flocks of anything from five to fifty thousand common starlings form in areas of the UK just before sundown during mid-winter. These flocks are commonly called murmurations.
Feeding
The common starling is largely insectivorous and feeds on both pest and other arthropods. The food range includes spiders, crane flies, moths, mayflies, dragonflies, damsel flies, grasshoppers, earwigs, lacewings, caddisflies, flies, beetles, sawflies, bees, wasps and ants. Prey are consumed in both adult and larvae stages of development, and common starlings will also feed on earthworms, snails, small amphibians and lizards. While the consumption of invertebrates is necessary for successful breeding, common starlings are omnivorous and can also eat grains, seeds, fruits, nectar and food waste if the opportunity arises. The Sturnidae differ from most birds in that they cannot easily metabolise foods containing high levels of sucrose, although they can cope with other fruits such as grapes and cherries. The isolated Azores subspecies of the common starling eats the eggs of the endangered roseate tern. Measures are being introduced to reduce common starling populations by culling before the terns return to their breeding colonies in spring.
There are several methods by which common starlings obtain their food but for the most part, they forage close to the ground, taking insects from the surface or just underneath. Generally, common starlings prefer foraging amongst short-cropped grasses and are often found among grazing animals or perched on their backs, where they will also feed on the mammal's external parasites. Large flocks may engage in a practice known as "roller-feeding", where the birds at the back of the flock continually fly to the front where the feeding opportunities are best. The larger the flock, the nearer individuals are to one another while foraging. Flocks often feed in one place for some time, and return to previous successfully foraged sites.
There are three types of foraging behaviour observed in the common starling. "Probing" involves the bird plunging its beak into the ground randomly and repetitively until an insect has been found, and is often accompanied by bill gaping where the bird opens its beak in the soil to enlarge a hole. This behaviour, first described by Konrad Lorenz and given the German term zirkeln, is also used to create and widen holes in plastic garbage bags. It takes time for young common starlings to perfect this technique, and because of this the diet of young birds will often contain fewer insects. "Hawking" is the capture of flying insects directly from the air, and "lunging" is the less common technique of striking forward to catch a moving invertebrate on the ground. Earthworms are caught by pulling from soil. Common starlings that have periods without access to food, or have a reduction in the hours of light available for feeding, compensate by increasing their body mass by the deposition of fat.
Nesting
Unpaired males find a suitable cavity and begin to build nests in order to attract single females, often decorating the nest with ornaments such as flowers and fresh green material, which the female later disassembles upon accepting him as a mate. The amount of green material is not important, as long as some is present, but the presence of herbs in the decorative material appears to be significant in attracting a mate. The scent of plants such as yarrow acts as an olfactory attractant to females.
The males sing throughout much of the construction and even more so when a female approaches his nest. Following copulation, the male and female continue to build the nest. Nests may be in any type of hole, common locations include inside hollowed trees, buildings, tree stumps and man-made nest-boxes. S. v. zetlandicus typically breeds in crevices and holes in cliffs, a habitat only rarely used by the nominate form. Nests are typically made out of straw, dry grass and twigs with an inner lining made up of feathers, wool and soft leaves. Construction usually takes four or five days and may continue through incubation.
Common starlings are both monogamous and polygamous; although broods are generally brought up by one male and one female, occasionally the pair may have an extra helper. Pairs may be part of a colony, in which case several other nests may occupy the same or nearby trees. Males may mate with a second female while the first is still on the nest. The reproductive success of the bird is poorer in the second nest than it is in the primary nest and is better when the male remains monogamous.
Breeding
Breeding takes place during the spring and summer. Following copulation, the female lays eggs on a daily basis over a period of several days. If an egg is lost during this time, she will lay another to replace it. There are normally four or five eggs that are ovoid in shape and pale blue or occasionally white, and they commonly have a glossy appearance. The colour of the eggs seems to have evolved through the relatively good visibility of blue at low light levels. The egg size is 26.5–34.5 mm (1.04–1.36 in) in length and 20.0–22.5 mm (0.79–0.89 in) in maximum diameter.
Incubation lasts thirteen days, although the last egg laid may take 24 hours longer than the first to hatch. Both parents share the responsibility of brooding the eggs, but the female spends more time incubating them than does the male, and is the only parent to do so at night when the male returns to the communal roost. The young are born blind and naked. They develop light fluffy down within seven days of hatching and can see within nine days. Once the chicks are able to regulate their body temperature, about six days after hatching, the adults largely cease removing droppings from the nest. Prior to that, the fouling would wet both the chicks' plumage and the nest material, thereby reducing their effectiveness as insulation and increasing the risk of chilling the hatchlings. Nestlings remain in the nest for three weeks, where they are fed continuously by both parents. Fledglings continue to be fed by their parents for another one or two weeks. A pair can raise up to three broods per year, frequently reusing and relining the same nest, although two broods is typical, or just one north of 48°N. Within two months, most juveniles will have moulted and gained their first basic plumage. They acquire their adult plumage the following year. As with other passerines, the nest is kept clean and the chicks' faecal sacs are removed by the adults.
Intraspecific brood parasites are common in common starling nests. Female "floaters" (unpaired females during the breeding season) present in colonies often lay eggs in another pair's nest. Fledglings have also been reported to invade their own or neighbouring nests and evict a new brood.[29] Common starling nests have a 48% to 79% rate of successful fledging, although only 20% of nestlings survive to breeding age; the adult survival rate is closer to 60%. The average life span is about 2–3 years, with a longevity record of 22 yr 11 m.
Predators and parasites
A majority of starling predators are avian. The typical response of starling groups is to take flight, with a common sight being undulating flocks of starling flying high in quick and agile patterns. Their abilities in flight are seldom matched by birds of prey. Adult common starlings are hunted by hawks such as the northern goshawk (Accipiter gentilis) and Eurasian sparrowhawk (Accipiter nisus), and falcons including the peregrine falcon (Falco peregrinus), Eurasian hobby (Falco subbuteo) and common kestrel (Falco tinnunculus). Slower raptors like black and red kites (Milvus migrans & milvus), eastern imperial eagle (Aquila heliaca), common buzzard (Buteo buteo) and Australasian harrier (Circus approximans) tend to take the more easily caught fledglings or juveniles. While perched in groups by night, they can be vulnerable to owls, including the little owl (Athene noctua), long-eared owl (Asio otus), short-eared owl (Asio flammeus), barn owl (Tyto alba), tawny owl (Strix aluco) and Eurasian eagle-owl (Bubo bubo).
More than twenty species of hawk, owl and falcon are known to occasionally predate feral starlings in North America, though the most regular predators of adults are likely to be urban-living peregrine falcons or merlins (Falco columbarius). Common mynas (Acridotheres tristis) sometimes evict eggs, nestlings and adult common starlings from their nests, and the lesser honeyguide (Indicator minor), a brood parasite, uses the common starling as a host. Starlings are more commonly the culprits rather than victims of nest eviction however, especially towards other starlings and woodpeckers. Nests can be raided by mammals capable of climbing to them, such as stoats (Mustela erminea), raccoons (Procyon lotor) and squirrels (Sciurus spp.), and cats may catch the unwary.
Common starlings are hosts to a wide range of parasites. A survey of three hundred common starlings from six US states found that all had at least one type of parasite; 99% had external fleas, mites or ticks, and 95% carried internal parasites, mostly various types of worm. Blood-sucking species leave their host when it dies, but other external parasites stay on the corpse. A bird with a deformed bill was heavily infested with Mallophaga lice, presumably due to its inability to remove vermin.
The hen flea (Ceratophyllus gallinae) is the most common flea in their nests. The small, pale house-sparrow flea C. fringillae, is also occasionally found there and probably arises from the habit of its main host of taking over the nests of other species. This flea does not occur in the US, even on house sparrows. Lice include Menacanthus eurystemus, Brueelia nebulosa and Stumidoecus sturni. Other arthropod parasites include Ixodes ticks and mites such as Analgopsis passerinus, Boydaia stumi, Dermanyssus gallinae, Ornithonyssus bursa, O. sylviarum, Proctophyllodes species, Pteronyssoides truncatus and Trouessartia rosteri. The hen mite D. gallinae is itself preyed upon by the predatory mite Androlaelaps casalis. The presence of this control on numbers of the parasitic species may explain why birds are prepared to reuse old nests.
Flying insects that parasitise common starlings include the louse-fly Omithomya nigricornis and the saprophagous fly Camus hemapterus. The latter species breaks off the feathers of its host and lives on the fats produced by growing plumage. Larvae of the moth Hofmannophila pseudospretella are nest scavengers, which feed on animal material such as faeces or dead nestlings. Protozoan blood parasites of the genus Haemoproteus have been found in common starlings, but a better known pest is the brilliant scarlet nematode Syngamus trachea. This worm moves from the lungs to the trachea and may cause its host to suffocate. In Britain, the rook and the common starling are the most infested wild birds. Other recorded internal parasites include the spiny-headed worm Prosthorhynchus transverses.
Common starlings may contract avian tuberculosis, avian malaria and retrovirus-induced lymphomas. Captive starlings often accumulate excess iron in the liver, a condition that can be prevented by adding black tea-leaves to the food.
Distribution and habitat
The global population of common starlings was estimated to be 310 million individuals in 2004, occupying a total area of 8,870,000 km2 (3,420,000 sq mi). Widespread throughout the Northern Hemisphere, the bird is native to Eurasia and is found throughout Europe, northern Africa (from Morocco to Egypt), India (mainly in the north but regularly extending further south and extending into the Maldives) Nepal, the Middle East including Syria, Iran, and Iraq and north-western China.
Common starlings in the south and west of Europe and south of latitude 40°N are mainly resident, although other populations migrate from regions where the winter is harsh, the ground frozen and food scarce. Large numbers of birds from northern Europe, Russia and Ukraine migrate south westwards or south eastwards. In the autumn, when immigrants are arriving from eastern Europe, many of Britain's common starlings are setting off for Iberia and North Africa. Other groups of birds are in passage across the country and the pathways of these different streams of bird may cross. Of the 15,000 birds ringed as nestlings in Merseyside, England, individuals have been recovered at various times of year as far afield as Norway, Sweden, Finland, Russia, Ukraine, Poland, Germany and the Low Countries. Small numbers of common starling have sporadically been observed in Japan and Hong Kong but it is unclear from where these birds originated. In North America, northern populations have developed a migration pattern, vacating much of Canada in winter. Birds in the east of the country move southwards, and those from further west winter in the southwest of the US.
Common starlings prefer urban or suburban areas where artificial structures and trees provide adequate nesting and roosting sites. Reedbeds are also favoured for roosting and the birds commonly feed in grassy areas such as farmland, grazing pastures, playing fields, golf courses and airfields where short grass makes foraging easy. They occasionally inhabit open forests and woodlands and are sometimes found in shrubby areas such as Australian heathland. Common starlings rarely inhabit dense, wet forests (i.e. rainforests or wet sclerophyll forests) but are found in coastal areas, where they nest and roost on cliffs and forage amongst seaweed. Their ability to adapt to a large variety of habitats has allowed them to disperse and establish themselves in diverse locations around the world resulting in a habitat range from coastal wetlands to alpine forests, from sea cliffs to mountain ranges 1,900 m (6,200 ft) above sea level.
Introduced populations
The common starling has been introduced to and has successfully established itself in New Zealand, Australia, South Africa, North America, Fiji and several Caribbean islands. As a result, it has also been able to migrate to Thailand, Southeast Asia and New Guinea.
South America
Five individuals conveyed on a ship from England alighted near Lago de Maracaibo in Venezuela in November 1949, but subsequently vanished. In 1987, a small population of common starlings was observed nesting in gardens in the city of Buenos Aires. Since then, despite some initial attempts at eradication, the bird has been expanding its breeding range at an average rate of 7.5 km (4.7 mi) per year, keeping within 30 km (19 mi) of the Atlantic coast. In Argentina, the species makes use of a variety of natural and man-made nesting sites, particularly woodpecker holes.
Australia
The common starling was introduced to Australia to consume insect pests of farm crops. Early settlers looked forward to their arrival, believing that common starlings were also important for the pollination of flax, a major agricultural product. Nest-boxes for the newly released birds were placed on farms and near crops. The common starling was introduced to Melbourne in 1857 and Sydney two decades later. By the 1880s, established populations were present in the southeast of the country thanks to the work of acclimatisation committees. By the 1920s, common starlings were widespread throughout Victoria, Queensland and New South Wales, but by then they were considered to be pests. Although common starlings were first sighted in Albany, Western Australia in 1917, they have been largely prevented from spreading to the state. The wide and arid Nullarbor Plain provides a natural barrier and control measures have been adopted that have killed 55,000 birds over three decades. The common starling has also colonised Kangaroo Island, Lord Howe Island, Norfolk Island and Tasmania.
New Zealand
The early settlers in New Zealand cleared the bush and found their newly planted crops were invaded by hordes of caterpillars and other insects deprived of their previous food sources. Native birds were not habituated to living in close proximity to man so the common starling was introduced from Europe along with the House Sparrow to control the pests. It was first brought over in 1862 by the Nelson Acclimatisation Society and other introductions followed. The birds soon became established and are now found all over the country including the subtropical Kermadec Islands to the north and the equally distant Macquarie Island far to the south.
North America
After two failed attempts, about 60 common starlings were released in 1890 into New York's Central Park by Eugene Schieffelin. He was president of the American Acclimatization Society, which reportedly tried to introduce every bird species mentioned in the works of William Shakespeare into North America, although this has been disputed. About the same date, the Portland Song Bird Club released 35 pairs of common starlings in Portland, Oregon. These birds became established but disappeared around 1902. Common starlings reappeared in the Pacific Northwest in the mid-1940s and these birds were probably descendants of the 1890 Central Park introduction. The original 60 birds have since swelled in number to 150 million, occupying an area extending from southern Canada and Alaska to Central America.
Polynesia
The common starling appears to have arrived in Fiji in 1925 on Ono-i-lau and Vatoa islands. It may have colonised from New Zealand via Raoul in the Kermadec Islands where it is abundant, that group being roughly equidistant between New Zealand and Fiji. Its spread in Fiji has been limited, and there are doubts about the population's viability. Tonga was colonised at about the same date and the birds there have been slowly spreading north through the group.
South Africa
In South Africa, the common starling was introduced in 1897 by Cecil Rhodes. It spread slowly, and by 1954, had reached Clanwilliam and Port Elizabeth. It is now common in the southern Cape region, thinning out northwards to the Johannesburg area. It is present in the Western Cape, the Eastern Cape and the Free State provinces of South Africa and lowland Lesotho, with occasional sightings in KwaZulu-Natal, Gauteng and around the town of Oranjemund in Namibia. In Southern Africa populations appear to be resident and the bird is strongly associated with man and anthropogenic habitats. It favours irrigated land and is absent from regions where the ground is baked so dry that it cannot probe for insects. It may compete with native birds for crevice nesting sites but the indigenous species are probably more disadvantaged by destruction of their natural habitat than they are by inter-specific competition. It breeds from September to December and outside the breeding season may congregate in large flocks, often roosting in reedbeds. It is the most common bird species in urban and agricultural areas.
West Indies
The inhabitants of Saint Kitts petitioned the Colonial Secretary for a ″ ... government grant of starlings to exterminate ... ″ an outbreak of grasshoppers with was causing enormous damage to their crops in 1901. The common starling was introduced to Jamaica in 1903, and the Bahamas and Cuba were colonised naturally from the US. This bird is fairly common but local in Jamaica, Grand Bahama and Bimini, and is rare in the rest of the Bahamas, eastern Cuba, the Cayman Islands, Puerto Rico and St. Croix.
Status
The global population of the common starling is estimated to be more than 310 million individuals and its numbers are not thought to be declining significantly, so the bird is classified by the International Union for Conservation of Nature as being of least concern. It had shown a marked increase in numbers throughout Europe from the 19th century to around the 1950s and 60s. In about 1830, S. v. vulgaris expanded its range in the British Isles, spreading into Ireland and areas of Scotland where it had formerly been absent, although S. v. zetlandicus was already present in Shetland and the Outer Hebrides. The common starling has bred in northern Sweden from 1850 and in Iceland from 1935. The breeding range spread through southern France to northeastern Spain, and there were other range expansions particularly in Italy, Austria and Finland. It started breeding in Iberia in 1960, while the spotless starling's range had been expanding northward since the 1950s. The low rate of advance, about 4.7 km (2.9 mi) per year for both species, is due to the suboptimal mountain and woodland terrain. Expansion has since slowed even further due to direct competition between the two similar species where they overlap in southwestern France and northwestern Spain.
Major declines in populations have been observed from 1980 onward in Sweden, Finland, northern Russia (Karelia) and the Baltic States, and smaller declines in much of the rest of northern and central Europe. The bird has been adversely affected in these areas by intensive agriculture, and in several countries it has been red-listed due to population declines of more than 50%. Numbers dwindled in the United Kingdom by more than 80% between 1966 and 2004; although populations in some areas such as Northern Ireland were stable or even increased, those in other areas, mainly England, declined even more sharply. The overall decline seems to be due to the low survival rate of young birds, which may be caused by changes in agricultural practices. The intensive farming methods used in northern Europe mean there is less pasture and meadow habitat available, and the supply of grassland invertebrates needed for the nestlings to thrive is correspondingly reduced.
Relationship with humans
Benefits and problems
Since common starlings eat insect pests such as wireworms, they are considered beneficial in northern Eurasia, and this was one of the reasons given for introducing the birds elsewhere. Around 25 million nest boxes were erected for this species in the former Soviet Union, and common starlings were found to be effective in controlling the grass grub Costelytra zelandica in New Zealand. The original Australian introduction was facilitated by the provision of nest boxes to help this mainly insectivorous bird to breed successfully, and even in the US, where this is a pest species, the Department of Agriculture acknowledges that vast numbers of insects are consumed by common starlings.
Common starlings introduced to areas such as Australia or North America, where other members of the genus are absent, may affect native species through competition for nest holes. In North America, chickadees, nuthatches, woodpeckers, purple martins and other swallows may be affected. In Australia, competitors for nesting sites include the crimson and eastern rosellas. For its role in the decline of local native species and the damages to agriculture, the common starling has been included in the IUCN List of the world's 100 worst invasive species.
Common starlings can eat and damage fruit in orchards such as grapes, peaches, olives, currants and tomatoes or dig up newly sown grain and sprouting crops. They may also eat animal feed and distribute seeds through their droppings. In eastern Australia, weeds like bridal creeper, blackberry and boneseed are thought to have been spread by common starlings. Agricultural damage in the US is estimated as costing about US$800 million annually. This bird is not considered to be as damaging to agriculture in South Africa as it is in the United States.
The large size of flocks can also cause problems. Common starlings may be sucked into aircraft jet engines, one of the worst instances of this being an incident in Boston in 1960, when sixty-two people died after a turboprop airliner flew into a flock and plummeted into the sea at Winthrop Harbor.
Starlings' droppings can contain the fungus Histoplasma capsulatum, the cause of histoplasmosis in humans. At roosting sites this fungus can thrive in accumulated droppings. There are a number of other infectious diseases that can potentially be transmitted by common starlings to humans, although the potential for the birds to spread infections may have been exaggerated.
Control
Because of the damage they do, there have been attempts to control the numbers of both native and introduced populations of common starlings. Within the natural breeding range, this may be affected by legislation. For example, in Spain, this is a species hunted commercially as a food item, and has a closed season, whereas in France, it is classed as a pest, and the season in which it may be killed covers the greater part of the year. In Great Britain, Starlings are protected under the Wildlife and Countryside Act 1981, which makes it "illegal to intentionally kill, injure or take a starling, or to take, damage or destroy an active nest or its contents". The Wildlife Order in Northern Ireland allows, with a general licence, "an authorised person to control starlings to prevent serious damage to agriculture or preserve public health and safety". This species is migratory, so birds involved in control measures may have come from a wide area and breeding populations may not be greatly affected. In Europe, the varying legislation and mobile populations mean that control attempts may have limited long-term results. Non-lethal techniques such as scaring with visual or auditory devices have only a temporary effect in any case.
Huge urban roosts in cities can create problems due to the noise and mess made and the smell of the droppings. In 1949, so many birds landed on the clock hands of London's Big Ben that it stopped, leading to unsuccessful attempts to disrupt the roosts with netting, repellent chemical on the ledges and broadcasts of common starling alarm calls. An entire episode of The Goon Show in 1954 was a parody of the futile efforts to disrupt the large common starling roosts in central London.
Where it is introduced, the common starling is unprotected by legislation, and extensive control plans may be initiated. Common starlings can be prevented from using nest boxes by ensuring that the access holes are smaller than the 1.5 in (38 mm) diameter they need, and the removal of perches discourages them from visiting bird feeders.
Western Australia banned the import of common starlings in 1895. New flocks arriving from the east are routinely shot, while the less cautious juveniles are trapped and netted. New methods are being developed, such as tagging one bird and tracking it back to establish where other members of the flock roost. Another technique is to analyse the DNA of Australian common starling populations to track where the migration from eastern to western Australia is occurring so that better preventive strategies can be used. By 2009, only 300 common starlings were left in Western Australia, and the state committed a further A$400,000 in that year to continue the eradication programme.
In the United States, common starlings are exempt from the Migratory Bird Treaty Act, which prohibits the taking or killing of migratory birds. No permit is required to remove nests and eggs or kill juveniles or adults. Research was undertaken in 1966 to identify a suitable avicide that would both kill common starlings and would readily be eaten by them. It also needed to be of low toxicity to mammals and not likely to cause the death of pets that ate dead birds. The chemical that best fitted these criteria was DRC-1339, now marketed as Starlicide. In 2008, the United States government poisoned, shot or trapped 1.7 million birds, the largest number of any nuisance species to be destroyed. In 2005, the population in the United States was estimated at 140 million birds, around 45% of the global total of 310 million.
In science and culture
Common starlings may be kept as pets or as laboratory animals. Austrian ethologist Konrad Lorenz wrote of them in his book King Solomon's Ring as "the poor man's dog" and "something to love", because nestlings are easily obtained from the wild and after careful hand rearing they are straightforward to look after. They adapt well to captivity, and thrive on a diet of standard bird feed and mealworms. Several birds may be kept in the same cage, and their inquisitiveness makes them easy to train or study. The only disadvantages are their messy and indiscriminate defecation habits and the need to take precautions against diseases that may be transmitted to humans. As a laboratory bird, the common starling is second in numbers only to the domestic pigeon.
The common starling's gift for mimicry has long been recognised. In the medieval Welsh Mabinogion, Branwen tamed a common starling, "taught it words", and sent it across the Irish Sea with a message to her brothers, Bran and Manawydan, who then sailed from Wales to Ireland to rescue her. Pliny the Elder claimed that these birds could be taught to speak whole sentences in Latin and Greek, and in Henry IV, William Shakespeare had Hotspur declare "The king forbade my tongue to speak of Mortimer. But I will find him when he is asleep, and in his ear I'll holler 'Mortimer!' Nay I'll have a starling shall be taught to speak nothing but Mortimer, and give it to him to keep his anger still in motion."
Mozart had a pet common starling which could sing part of his Piano Concerto in G Major (KV. 453). He had bought it from a shop after hearing it sing a phrase from a work he wrote six weeks previously, which had not yet been performed in public. He became very attached to the bird and arranged an elaborate funeral for it when it died three years later. It has been suggested that his A Musical Joke (K. 522) might be written in the comical, inconsequential style of a starling's vocalisation.[35] Other people who have owned common starlings report how adept they are at picking up phrases and expressions. The words have no meaning for the starling, so they often mix them up or use them on what to humans are inappropriate occasions in their songs. Their ability at mimicry is so great that strangers have looked in vain for the human they think they have just heard speak.
Common starlings are trapped for food in some Mediterranean countries. The meat is tough and of low quality, so it is casseroled or made into pâté. One recipe said it should be stewed "until tender, however long that may be". Even when correctly prepared, it may still be seen as an acquired taste.
The introduction of European starlings to the United States in 1890 by New York pharmaceutical manufacturer Eugene Schieffelin was featured in the plotline of the Netflix original series, Ozark in season 1, episode 7, "Nest Box."
[Credit: en.wikipedia.org/]
Aquí podeis ir viendo el making off de los petos! XD
Sabeis que en realidad hay 22 unidades y todos son diferentes? una locura padre!
This dragonfly looks overall similar to a male Widow Skimmer, but with the dark wing patches moved outboard. Locally, most of the males of this species adopt the blue pruinose wash on the abdomen... like on this specimen. All of this species that I have observed back east do not adopt this pruinose blue wash... it might be a local thing.
IMG_3163; Common Whitetail
Chassis n° 4607
Les Grandes Marques du Monde au Grand Palais 2020
Bonhams
Parijs - Paris
Frankrijk - France
February 2020
Estimated : € 1.050.000 - 1.400.000
Sold for € 870.000
All the sophistication of Ettore Bugatti's famously thoughtful design ethic is embodied within this wonderfully well-presented ex-works racing Bugatti Type 39, as manufactured at the charismatic Molsheim factory in 1925...
Mr Bugatti built his reputation upon creating rapid and reliable motor cars endowed with competitively powerful engines in light, compact, and nimble chassis. Above all he clearly grasped the over-riding importance of a high power-to-weight ratio in contrast to some other quality car constructors to whom overall weight seemed irrelevant compared to achieving the highest possible power not necessarily out there on the open road, nor race circuit, but in the engine test-house...
While combining in so many of his sporting models high power, minimal mass and a good-handling, driveable chassis, Ettore Bugatti also manufactured most of them in sufficient numbers to attract, and to satisfy, broad demand from a moneyed and dashingly competition-minded market.
In 1924 Mr Bugatti had launched his 2-litre Type 35 design, and by 1925 the Type 39 followed to comply with maximum 1500cc Voiturette racing regulations – effectively the Formula 2 of the time. Use of a short-stroke crankshaft in the straight-8 cylinder engine provided bore and stroke measurements of 60mm x 66mm, displacing 1493cc. Possibly Mr Bugatti was anticipating the overall Grand Prix capacity limit rule change for 1926-27 which would cut maximum permitted engine capacity from 2-litres to 1½.
The Type 39s made their debut in the Grand Prix de Tourisme at Montlhéry south of Paris, France, in June 1925. The four new works team cars promptly finished 1-2-3-4 in their class, and in 3rd place was '4607' now offered here, driven by Giulio Foresti.
Of course the pinnacle of road racing competition during the 1920s was the Grand Prix arena, and when the1925 Italian Grand Prix at Monza Autodrome was run concurrently with the 1500cc Gran Premio delle Vetturette the Bugatti company contested it with a full team of five Type 39s.
The race was run over 80 laps of the Milanese Autodrome's 10km combined road and high-speed track. Bugatti's team captain was Bartolomeo 'Meo' Costantini, teamed to drive with Jules Goux, Pierre de Vizcaya, Count Carlo Masetti and Count Aymo Maggi, who was replacing Ferdinand de Vizcaya, the Spanish banker – and backer of the Bugatti company - who arrived late from Barcelona. And when Count Masetti had to stand down due to a leg injury, it was Giulio Foresti who took his place to drive '4607' in the long race...
As the Gran Premio developed, the Bugattis not only dominated the Voiturette category but also climbed the leader board amongst the full 2-litre Grand Prix cars. Finally – after 5hrs 44mins 40.91secs to be precise (the Italian lap-scorers immensely proud of their then-new hundredth-second timing equipment) the Gran Premio delle Vetturette was decided with Costantini's Bugatti Type 39 winning from the sister cars of Ferdinand de Vizcaya and Giulio Foresti, respectively 2nd and 3rd. Pierre de Vizcaya's Type 39 placed fourth while Jules Goux's engine had failed after 64 of the 80 laps. Overall, the Bugatti Type 39s had proved so fast and reliable that Costantini finished the Grand Prix 3rd overall, Ferdinand de Vizcaya 6th and Foresti in '4607' now offered here, 7th.
A record survives of this car and its sister '4604' both being sold soon after to the British importer, Colonel Sorel in London, and it is thought that Giulio Foresti – an accomplished 'wheeler-dealer' in his own right – then found an eager buyer for the pair – one A.V.Turner - in Australia, although alternative reference suggests that '4607' was imported there by prominent Vauxhall driver Boyd Edkins.
On June 19, 1926, the car certainly appeared upon Sydney's high-banked Maroubra Speedway driven by a friend and colleague of Edkins, Dick Clarke. While the Type 39s – or 'Monzas' as they became known in Australia – became particularly noted for their wonderfully high-pitched exhaust note, they were not well-suited to Maroubra, since they were over-geared for the tight Speedway. Clarke was still able to win a heat there on September 4, 1926, and '4607' lapped the speedbowl at 86mph. At Penrith Clarke won a heat and a semi-final before taking 2nd and 3rd places in two further events. Then back at Maroubra for the January, 1927 meeting Clarke won two heats and took 2nd in a final.
The car later passed to 20-year-old Sid Cox, son of a wealthy building magnate. The young man also had a Bugatti Type 40 which he used as a tender when he took '4607' to Philip Island, Melbourne, Victoria, to race in the 1928 Australian Grand Prix. With friend Ken McKinney alongside him Sid Cox practised for the great race only for bronze filings to be found in the oil filter, a sign that the power unit's bronze roller-bearing cages were failing. On race day, sure enough, '4607's engine broke a connecting rod.
A new crankcase and sump were bought for the car, but the old sump was used in the rebuild, mated to the new crankcase. Cox then sold '4607' to poster-artist Reg St John who became noted for maintaining the Bugatti in utterly pristine, highly polished and well-cherished condition. He reportedly used it to parade up and down Swanston Street, Melbourne, admiring his reflection in the shop windows. And why not?
However, Australian racer Carl Junker then acquired the car and – with Reg Nutt as his riding mechanic – he entered it in the 1931 Australian GP again at Philip Island. They were running second behind Hope Bartlett's Bugatti Type 37A on the penultimate lap when its engine failed, Junker and Nutt joyously inheriting outright Grand Prix victory for '4607'. Ernie Nutt had tuned the car and he would recall that Junker used 7,000rpm through the gears, '4607' achieving 55mph in 1st, 72mph in 2nd and 103mph in 3rd.
Racing again in the 1932 Australian GP, Junker improved his lap times but fell victim to spark-plug trouble which meant he could finish only 5th. Completing the long race ahead of him that day was Merton Wreford in his Brescia Bugatti, and he later bought '4607' from Junker, reputedly after it had suffered another engine failure.
Mert Wreford fixed the problem and then entered the Type 39 in the 1933 Australian GP in which he found himself confronted by Carl Junker in the sister 1925 Bugatti 'Monza' – chassis '4604'. These two Type 39s proved to be the class of that Grand Prix field and after Junker's engine blew-up, Wreford moved into the lead, only for '4607's engine to fail on the third-last lap. Evidently the two broken 'Monzas' were left parked together at trackside – but Mert Wreford had recorded the race's fastest lap.
A new owner was then found for '4607' in specialist Jack Day of the Ajax Pump Works who fitted '4607' with his own 'Day' supercharger, driven from the crankshaft nose. He made his debut with the supercharged car in the August, 1933, Frankston hill-climb. But when the forced-induction experiment disappointed, Jack Day removed the Bugatti engine and fitted instead a Ford V8. This Type 39 thus became the first Australian special to be powered by a 'black iron' American Ford V8. The resultant Day Special proved very successful through 1936, setting new hill-climb records at Mitcham and Rob Roy. Reg Nutt raced the car in monoposto form at Phillip Island, 1937, and in the South Australian GP in 1938.
After World War 2, Bondi Beach surf life-saver, water-skier and amateur wrestler 'Gelignite' Jack Murray bought '4607' in its Day Special form from Jack Day, the price £1,100.
'Gelignite Jack' would earn his nickname from blowing up rural dunnies with sticks of gelignite during the RedeX Round Australia Trials. Every man needs a hobby....
The car "was given the full Murray red paint and chrome treatment" and in it he set fastest time and finished 5th on handicap in the 1946 New South Wales GP at Bathurst. Returning there n 1947 he was tipped to win, but failed to finish. The car was clocked at 106mph. At the 1948 Bathurst 100 the Day Special was recorded at 117mph and placed 3rd on handicap in the over 1500cc class. Overheating often afflicted the car in its Ford V8-engined form, but 'Gelignite Jack' continued to campaign the ageing special into 1954 when he was an amazing 4th fastest and 7th on handicap at the Bathurst Easter Meeting.
Subsequently the car survived in storage at Murray's Bondi garage, until he sold it – accompanied by a mass of related Bugatti components – to marque enthusiast Ted Lobb. While the original Type 39 chassis survived within the Day Special, Ted Lobb also had its original engine 'No 7' – which was fitted in his sister car '4604' – so now he also owned the blown-up engine 'No 6' – originally in '4604' – from Jack Day. Around 1974, Ted Lobb sold the Day Special and engine 'No 6' plus numerous other related Bugatti parts to Bob King, who later decided to rebuild '4607' to its 1925 Italian Grand Prix 'Monza' form.
He would later write: "The monumental rebuild was completed in the early 1980s, using a Type 39 crankshaft which came from Lance Dixon's Type 51A '4847'. The crankshaft – numbered '27' – was in perfect ex-factory condition, all parts carrying matching factory numbers. A gearbox casing was obtained in England from Ian Preston. The differential is Type 38, suitably altered, from the Nuttbug (BC4)". He concluded "'4607' was sold to Art Valdez of California in 1986...".
This restored Bugatti Type 39 was then shipped to Bangkok, Thailand, in time for new owner Art Valdez to drive it in the December 5, 1987, Prince 'Bira' commemorative Bangkok Grand Prix meeting. Anton Perera reported in 'The Nation' newspaper: "There in the parade was the oldest car of them all, a Bugatti Type 39 – all of 62 years with a 1493cc engine. And didn't the smooth engine purr with noise, indicating that it could be a danger on the 2.5km Pattaya Circuit next week...Yes, the 1931 Australian Grand Prix winner looked in perfectly good trim and ready to turn on the speed..."
John Fitzpatrick of the Australian Bugatti Register later reported how at Pattaya, where the Vintage race "ended an absolutely magical fortnight...Art Valdez was euphoric after his first race in a GP Bugatti...as Neil Corner wrote recently '...To have your GP Bugatti motoring well is to live with the gods...'".
The car was preserved within Mr Valdez's Californian ownership until in April 1993 he telephoned former owner Bob King to declare his intention to sell it. However, it was not until 2017 that the car subsequently passed from Art Valdez into the ownership of the present vendor.
Today '4607' presents very well indeed, having recently benefited from a mechanical inspection, strip-down and rebuilt by Tony Ditheridge's renowned Hawker Racing concern in Milden, Suffolk, England. This work included thorough cleaning and re-commissioning - even to the extent of fitting new valve springs. This ex-works Bugatti warhorse was then unleashed successor on the open road. Now, subject to the usual inspections and personal set-up adjustments, '4607' is poised for an active 2020 motoring season.
The car is accompanied by a comprehensive historical overview and inspection report compiled by the highly respected British Bugatti specialists David Sewell and Mark Morris.
In summary they confirm that "Type 39 chassis '4607' presents itself today as a recognised and well recorded example of the 8-cylinder GP Bugatti". They continue: "One key factor that must be recorded is that the major components are of Molsheim manufacture". The chassis frame is No 61 – while they report that the Molsheim lower (engine) crankcase is '7' ex-'4604' – the Molsheim upper (engine) crankcase is '114' – the Molsheim cambox 'No 7' – the Molsheim gearbox 'No 113' – the Molsheim gearbox lid No '856' – while the Molsheim rear axle centre casing has been modified from that of a touring car, ratio 12x54, 'No 284'.
So here BONHAMS is delighted to commend to the market this Bugatti Type 39 – the eminently useable (and potentially so enjoyable – and so raceable) winner of the 1931 Australian Grand Prix – and previously works driver Giulio Foresti's works team car, with third place in the 1925 Grand Prix de Tourism –third place in the 1925 Italian Gran Premio delle Vetturette at Monza – and 7th in the overall Italian Grand Prix, all so prominent within its history.
Just one decisive bid, and this fine example of Le Pur Sang – which such a jam-packed history on both road and track - could be yours...
Overall view of activity in the Mission Operations Control Room in the Mission Control Center at the Manned Spacecraft Center during the launch of the unmanned earth-orbital Apollo 4 space mission. The flight controllers are watching the Saturn V staging on the televison monitor. Apollo 4 was the first launch of the Saturn V space vehicle.
Credit: NASA
Image Number: S67-50312
Date: November 9, 1967
SPECIFICATIONS
Overall Length (m)- 8.88
Length of hull (m)- 8.50
Overall beam (m)- 2.99
Bridge clearance (m)- 3.36
Boatweight without engine (kg)- 3100
Maximum engine weight (kg)- 588
Maximum load (People, Gear, Engine) (kg)-1475
Shat length - 1-XXL/2-XL
Maximum power (hp / kw)- 500 / 368
Drat (m)- 0.59
Water tank (L)- 100
Fuel tank maximum capacity (L)- 400
Fuel tank type- Integrated
Boat's height (m)- 3.32
Maximum number of people - 10
CE category- B
MERCURY ENGINE
Twin outboard engine: Twin Mercury 225 V6 - Twin Mercury 250 V8 Verado -
A coalition force member fires his M4 rifle from the standing position during a marksmanship training exercise at Kandahar Air Field, in Kandahar province, Afghanistan, on Jan. 22, 2014. Coalition force members routinely conduct rifle marksmanship training as a key component of maintaining overall mission readiness. (U.S. Army photo by Sgt Troy B. Tippett/ photo edited for security purposes/ Released)
Developed jointly by Stanford University and NASA’s Marshall Space Flight Center in Huntsville, Ala., Gravity Probe B (GP-B) was a scientific mission intended to test Albert Einstein’s theory of relativity, which predicted that both space and time are distorted by the presence of massive objects. Marshall was in charge of overall project management while Stanford was responsible for mission conception, design, integration of the science instrument, as well as mission operations and data analysis. GP-B was launched from Vandenberg Air Force Base, Calif. Atop a Boeing Delta II rocket on April 20, 2004.
Image credit: NASA
Original image:
www.nasa.gov/centers/marshall/history/gpb_launch_140422.html
More Marshall history images:
www.nasa.gov/centers/marshall/history/gallery/marshall_hi...
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The Sahara (/səˈhɑːrə/, /səˈhærə/) is a desert spanning across North Africa. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.
The name "Sahara" is derived from Arabic: صَحَارَى, romanized: ṣaḥārā /sˤaħaːraː/, a broken plural form of ṣaḥrā' (صَحْرَاء /sˤaħraːʔ/), meaning "desert".
The desert covers much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and the Sudan.
It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south it is bounded by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and the Sudan region of sub-Saharan Africa. The Sahara can be divided into several regions, including the western Sahara, the central Ahaggar Mountains, the Tibesti Mountains, the Aïr Mountains, the Ténéré desert, and the Libyan Desert.
For several hundred thousand years, the Sahara has alternated between desert and savanna grassland in a 20,000-year cycle caused by the precession of Earth's axis (about 26,000 years) as it rotates around the Sun, which changes the location of the North African monsoon.
Geography
The Sahara covers large parts of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Western Sahara, Sudan and Tunisia. It covers 9 million square kilometres (3,500,000 sq mi), amounting to 31% of Africa. If all areas with a mean annual precipitation of less than 250 mm (9.8 in) were included, the Sahara would be 11 million square kilometres (4,200,000 sq mi). It is one of three distinct physiographic provinces of the African massive physiographic division. Sahara is so large and bright that, in theory, it could be detected from other stars as a surface feature of Earth, with near-current technology.
The Sahara is mainly rocky hamada (stone plateaus); ergs (sand seas – large areas covered with sand dunes) form only a minor part, but many of the sand dunes are over 180 metres (590 ft) high. Wind or rare rainfall shape the desert features: sand dunes, dune fields, sand seas, stone plateaus, gravel plains (reg), dry valleys (wadi), dry lakes (oued), and salt flats (shatt or chott). Unusual landforms include the Richat Structure in Mauritania.
Several deeply dissected mountains, many volcanic, rise from the desert, including the Aïr Mountains, Ahaggar Mountains, Saharan Atlas, Tibesti Mountains, Adrar des Iforas, and the Red Sea Hills. The highest peak in the Sahara is Emi Koussi, a shield volcano in the Tibesti range of northern Chad.
The central Sahara is hyperarid, with sparse vegetation. The northern and southern reaches of the desert, along with the highlands, have areas of sparse grassland and desert shrub, with trees and taller shrubs in wadis, where moisture collects. In the central, hyperarid region, there are many subdivisions of the great desert: Tanezrouft, the Ténéré, the Libyan Desert, the Eastern Desert, the Nubian Desert and others. These extremely arid areas often receive no rain for years.
To the north, the Sahara skirts the Mediterranean Sea in Egypt and portions of Libya, but in Cyrenaica and the Maghreb, the Sahara borders the Mediterranean forest, woodland, and scrub eco-regions of northern Africa, all of which have a Mediterranean climate characterized by hot summers and cool and rainy winters. According to the botanical criteria of Frank White and geographer Robert Capot-Rey, the northern limit of the Sahara corresponds to the northern limit of date palm cultivation and the southern limit of the range of esparto, a grass typical of the Mediterranean climate portion of the Maghreb and Iberia. The northern limit also corresponds to the 100 mm (3.9 in) isohyet of annual precipitation.
To the south, the Sahara is bounded by the Sahel, a belt of dry tropical savanna with a summer rainy season that extends across Africa from east to west. The southern limit of the Sahara is indicated botanically by the southern limit of Cornulaca monacantha (a drought-tolerant member of the Chenopodiaceae), or northern limit of Cenchrus biflorus, a grass typical of the Sahel. According to climatic criteria, the southern limit of the Sahara corresponds to the 150 mm (5.9 in) isohyet of annual precipitation (this is a long-term average, since precipitation varies annually).
Important cities located in the Sahara include Nouakchott, the capital of Mauritania; Tamanrasset, Ouargla, Béchar, Hassi Messaoud, Ghardaïa, and El Oued in Algeria; Timbuktu in Mali; Agadez in Niger; Ghat in Libya; and Faya-Largeau in Chad.
Climate
The Sahara is the world's largest hot desert. It is located in the horse latitudes under the subtropical ridge, a significant belt of semi-permanent subtropical warm-core high pressure where the air from the upper troposphere usually descends, warming and drying the lower troposphere and preventing cloud formation.
The permanent absence of clouds allows unhindered light and thermal radiation. The stability of the atmosphere above the desert prevents any convective overturning, thus making rainfall virtually non-existent. As a consequence, the weather tends to be sunny, dry and stable with a minimal chance of rainfall. Subsiding, diverging, dry air masses associated with subtropical high-pressure systems are extremely unfavorable for the development of convectional showers. The subtropical ridge is the predominant factor that explains the hot desert climate (Köppen climate classification BWh) of this vast region. The descending airflow is the strongest and the most effective over the eastern part of the Great Desert, in the Libyan Desert: this is the sunniest, driest and the most nearly "rainless" place on the planet, rivaling the Atacama Desert, lying in Chile and Peru.
The rainfall inhibition and the dissipation of cloud cover are most accentuated over the eastern section of the Sahara rather than the western. The prevailing air mass lying above the Sahara is the continental tropical (cT) air mass, which is hot and dry. Hot, dry air masses primarily form over the North-African desert from the heating of the vast continental land area, and it affects the whole desert during most of the year. Because of this extreme heating process, a thermal low is usually noticed near the surface, and is the strongest and the most developed during the summertime. The Sahara High represents the eastern continental extension of the Azores High, centered over the North Atlantic Ocean. The subsidence of the Sahara High nearly reaches the ground during the coolest part of the year, while it is confined to the upper troposphere during the hottest periods.
The effects of local surface low pressure are extremely limited because upper-level subsidence still continues to block any form of air ascent. Also, to be protected against rain-bearing weather systems by the atmospheric circulation itself, the desert is made even drier by its geographical configuration and location. Indeed, the extreme aridity of the Sahara is not only explained by the subtropical high pressure: the Atlas Mountains of Algeria, Morocco and Tunisia also help to enhance the aridity of the northern part of the desert. These major mountain ranges act as a barrier, causing a strong rain shadow effect on the leeward side by dropping much of the humidity brought by atmospheric disturbances along the polar front which affects the surrounding Mediterranean climates.
The primary source of rain in the Sahara is the Intertropical Convergence Zone, a continuous belt of low-pressure systems near the equator which bring the brief, short and irregular rainy season to the Sahel and southern Sahara. Rainfall in this giant desert has to overcome the physical and atmospheric barriers that normally prevent the production of precipitation. The harsh climate of the Sahara is characterized by: extremely low, unreliable, highly erratic rainfall; extremely high sunshine duration values; high temperatures year-round; negligible rates of relative humidity; a significant diurnal temperature variation; and extremely high levels of potential evaporation which are the highest recorded worldwide.
Temperature
The sky is usually clear above the desert, and the sunshine duration is extremely high everywhere in the Sahara. Most of the desert has more than 3,600 hours of bright sunshine per year (over 82% of daylight hours), and a wide area in the eastern part has over 4,000 hours of bright sunshine per year (over 91% of daylight hours). The highest values are very close to the theoretical maximum value. A value of 4300 hours (98%) of the time would be[clarification needed] recorded in Upper Egypt (Aswan, Luxor) and in the Nubian Desert (Wadi Halfa). The annual average direct solar irradiation is around 2,800 kWh/(m2 year) in the Great Desert. The Sahara has a huge potential for solar energy production.
The high position of the Sun, the extremely low relative humidity, and the lack of vegetation and rainfall make the Great Desert the hottest large region in the world, and the hottest place on Earth during summer in some spots. The average high temperature exceeds 38 to 40 °C (100.4 to 104.0 °F) during the hottest month nearly everywhere in the desert except at very high altitudes. The world's highest officially recorded average daily high temperature[clarification needed] was 47 °C (116.6 °F) in a remote desert town in the Algerian Desert called Bou Bernous, at an elevation of 378 metres (1,240 ft) above sea level, and only Death Valley, California rivals it.
Other hot spots in Algeria such as Adrar, Timimoun, In Salah, Ouallene, Aoulef, Reggane with an elevation between 200 and 400 metres (660 and 1,310 ft) above sea level get slightly lower summer average highs, around 46 °C (114.8 °F) during the hottest months of the year. Salah, well known in Algeria for its extreme heat, has average high temperatures of 43.8 °C (110.8 °F), 46.4 °C (115.5 °F), 45.5 °C (113.9 °F) and 41.9 °C (107.4 °F) in June, July, August and September respectively. There are even hotter spots in the Sahara, but they are located in extremely remote areas, especially in the Azalai, lying in northern Mali. The major part of the desert experiences around three to five months when the average high strictly[clarification needed] exceeds 40 °C (104 °F); while in the southern central part of the desert, there are up to six or seven months when the average high temperature strictly[clarification needed] exceeds 40 °C (104 °F). Some examples of this are Bilma, Niger and Faya-Largeau, Chad. The annual average daily temperature exceeds 20 °C (68 °F) everywhere and can approach 30 °C (86 °F) in the hottest regions year-round. However, most of the desert has a value in excess of 25 °C (77 °F).
Sand and ground temperatures are even more extreme. During daytime, the sand temperature is extremely high: it can easily reach 80 °C (176 °F) or more. A sand temperature of 83.5 °C (182.3 °F) has been recorded in Port Sudan. Ground temperatures of 72 °C (161.6 °F) have been recorded in the Adrar of Mauritania and a value of 75 °C (167 °F) has been measured in Borkou, northern Chad.
Due to lack of cloud cover and very low humidity, the desert usually has high diurnal temperature variations between days and nights. However, it is a myth that the nights are especially cold after extremely hot days in the Sahara.[citation needed] On average, nighttime temperatures tend to be 13–20 °C (23–36 °F) cooler than in the daytime. The smallest variations are found along the coastal regions due to high humidity and are often even lower than a 10 °C (18 °F) difference, while the largest variations are found in inland desert areas where the humidity is the lowest, mainly in the southern Sahara. Still, it is true that winter nights can be cold, as it can drop to the freezing point and even below, especially in high-elevation areas.[clarification needed] The frequency of subfreezing winter nights in the Sahara is strongly influenced by the North Atlantic Oscillation (NAO), with warmer winter temperatures during negative NAO events and cooler winters with more frosts when the NAO is positive. This is because the weaker clockwise flow around the eastern side of the subtropical anticyclone during negative NAO winters, although too dry to produce more than negligible precipitation, does reduce the flow of dry, cold air from higher latitudes of Eurasia into the Sahara significantly.
Precipitation
The average annual rainfall ranges from very low in the northern and southern fringes of the desert to nearly non-existent over the central and the eastern part. The thin northern fringe of the desert receives more winter cloudiness and rainfall due to the arrival of low pressure systems over the Mediterranean Sea along the polar front, although very attenuated by the rain shadow effects of the mountains and the annual average rainfall ranges from 100 millimetres (4 in) to 250 millimetres (10 in). For example, Biskra, Algeria, and Ouarzazate, Morocco, are found in this zone. The southern fringe of the desert along the border with the Sahel receives summer cloudiness and rainfall due to the arrival of the Intertropical Convergence Zone from the south and the annual average rainfall ranges from 100 millimetres (4 in) to 250 millimetres (10 in). For example, Timbuktu, Mali and Agadez, Niger are found in this zone.
The vast central hyper-arid core of the desert is virtually never affected by northerly or southerly atmospheric disturbances and permanently remains under the influence of the strongest anticyclonic weather regime, and the annual average rainfall can drop to less than 1 millimetre (0.04 in). In fact, most of the Sahara receives less than 20 millimetres (0.8 in). Of the 9,000,000 square kilometres (3,500,000 sq mi) of desert land in the Sahara, an area of about 2,800,000 square kilometres (1,100,000 sq mi) (about 31% of the total area) receives an annual average rainfall amount of 10 millimetres (0.4 in) or less, while some 1,500,000 square kilometres (580,000 sq mi) (about 17% of the total area) receives an average of 5 millimetres (0.2 in) or less.
The annual average rainfall is virtually zero over a wide area of some 1,000,000 square kilometres (390,000 sq mi) in the eastern Sahara comprising deserts of: Libya, Egypt and Sudan (Tazirbu, Kufra, Dakhla, Kharga, Farafra, Siwa, Asyut, Sohag, Luxor, Aswan, Abu Simbel, Wadi Halfa) where the long-term mean approximates 0.5 millimetres (0.02 in) per year.[25] Rainfall is very unreliable and erratic in the Sahara as it may vary considerably year by year. In full contrast to the negligible annual rainfall amounts, the annual rates of potential evaporation are extraordinarily high, roughly ranging from 2,500 millimetres (100 in) per year to more than 6,000 millimetres (240 in) per year in the whole desert. Nowhere else on Earth has air been found as dry and evaporative as in the Sahara region. However, at least two instances of snowfall have been recorded in Sahara, in February 1979 and December 2016, both in the town of Ain Sefra.
Desertification and prehistoric climate
One theory for the formation of the Sahara is that the monsoon in Northern Africa was weakened because of glaciation during the Quaternary period, starting two or three million years ago. Another theory is that the monsoon was weakened when the ancient Tethys Sea dried up during the Tortonian period around 7 million years ago.
The climate of the Sahara has undergone enormous variations between wet and dry over the last few hundred thousand years, believed to be caused by long-term changes in the North African climate cycle that alters the path of the North African Monsoon – usually southward. The cycle is caused by a 41,000-year cycle in which the tilt of the earth changes between 22° and 24.5°. At present, we are in a dry period, but it is expected that the Sahara will become green again in 15,000 years. When the North African monsoon is at its strongest, annual precipitation and subsequent vegetation in the Sahara region increase, resulting in conditions commonly referred to as the "green Sahara". For a relatively weak North African monsoon, the opposite is true, with decreased annual precipitation and less vegetation resulting in a phase of the Sahara climate cycle known as the "desert Sahara".
The idea that changes in insolation (solar heating) caused by long-term changes in Earth's orbit are a controlling factor for the long-term variations in the strength of monsoon patterns across the globe was first suggested by Rudolf Spitaler in the late nineteenth century, The hypothesis was later formally proposed and tested by the meteorologist John Kutzbach in 1981. Kutzbach's ideas about the impacts of insolation on global monsoonal patterns have become widely accepted today as the underlying driver of long-term monsoonal cycles. Kutzbach never formally named his hypothesis and as such it is referred to here as the "Orbital Monsoon Hypothesis" as suggested by Ruddiman in 2001.
During the last glacial period, the Sahara was much larger than it is today, extending south beyond its current boundaries. The end of the glacial period brought more rain to the Sahara, from about 8000 BCE to 6000 BCE, perhaps because of low pressure areas over the collapsing ice sheets to the north. Once the ice sheets were gone, the northern Sahara dried out. In the southern Sahara, the drying trend was initially counteracted by the monsoon, which brought rain further north than it does today. By around 4200 BCE, however, the monsoon retreated south to approximately where it is today, leading to the gradual desertification of the Sahara. The Sahara is now as dry as it was about 13,000 years ago.
Lake Chad is the remnant of a former inland sea, paleolake Mega-Chad, which existed during the African humid period. At its largest extent, sometime before 5000 BCE, Lake Mega-Chad was the largest of four Saharan paleolakes, and is estimated to have covered an area of 350,000 km2.
The Sahara pump theory describes this cycle. During periods of a wet or "Green Sahara", the Sahara becomes a savanna grassland and various flora and fauna become more common. Following inter-pluvial arid periods, the Sahara area then reverts to desert conditions and the flora and fauna are forced to retreat northwards to the Atlas Mountains, southwards into West Africa, or eastwards into the Nile Valley. This separates populations of some of the species in areas with different climates, forcing them to adapt, possibly giving rise to allopatric speciation.
September 2020, it was reported that the GGW had only covered 4% of the planned area.
It is also proposed that humans accelerated the drying-out period from 6000 to 2500 BCE by pastoralists overgrazing available grassland.
Evidence for cycles
The growth of speleothems (which requires rainwater) was detected in Hol-Zakh, Ashalim, Even-Sid, Ma'ale-ha-Meyshar, Ktora Cracks, Nagev Tzavoa Cave, and elsewhere, and has allowed tracking of prehistoric rainfall. The Red Sea coastal route was extremely arid before 140 and after 115 kya (thousands of years ago). Slightly wetter conditions appear at 90–87 kya, but it still was just one tenth the rainfall around 125 kya. In the southern Negev Desert speleothems did not grow between 185 and 140 kya (MIS 6), 110–90 (MIS 5.4–5.2), nor after 85 kya nor during most of the interglacial period (MIS 5.1), the glacial period and Holocene. This suggests that the southern Negev was arid-to-hyper-arid in these periods.
During the Last Glacial Maximum (LGM) the Sahara was more extensive than it is now with the extent of the tropical forests being greatly reduced, and the lower temperatures reduced the strength of the Hadley Cell. This is a climate cell which causes rising tropical air of the Inter-Tropical Convergence Zone (ITCZ) to bring rain to the tropics, while dry descending air, at about 20 degrees north, flows back to the equator and brings desert conditions to this region. It is associated with high rates of wind-blown mineral dust, and these dust levels are found as expected in marine cores from the north tropical Atlantic. But around 12,500 BCE the amount of dust in the cores in the Bølling/Allerød phase suddenly plummets and shows a period of much wetter conditions in the Sahara, indicating a Dansgaard-Oeschger (DO) event (a sudden warming followed by a slower cooling of the climate). The moister Saharan conditions had begun about 12,500 BCE, with the extension of the ITCZ northward in the northern hemisphere summer, bringing moist wet conditions and a savanna climate to the Sahara, which (apart from a short dry spell associated with the Younger Dryas) peaked during the Holocene thermal maximum climatic phase at 4000 BCE when mid-latitude temperatures seem to have been between 2 and 3 degrees warmer than in the recent past. Analysis of Nile River deposited sediments in the delta also shows this period had a higher proportion of sediments coming from the Blue Nile, suggesting higher rainfall also in the Ethiopian Highlands. This was caused principally by a stronger monsoonal circulation throughout the sub-tropical regions, affecting India, Arabia and the Sahara.[citation needed] Lake Victoria only recently became the source of the White Nile and dried out almost completely around 15 kya.
The sudden subsequent movement of the ITCZ southwards with a Heinrich event (a sudden cooling followed by a slower warming), linked to changes with the El Niño-Southern Oscillation cycle, led to a rapid drying out of the Saharan and Arabian regions, which quickly became desert. This is linked to a marked decline in the scale of the Nile floods between 2700 and 2100 BCE.
Ecoregions
The Sahara comprises several distinct ecoregions. With their variations in temperature, rainfall, elevation, and soil, these regions harbor distinct communities of plants and animals.
The Atlantic coastal desert is a narrow strip along the Atlantic coast where fog generated offshore by the cool Canary Current provides sufficient moisture to sustain a variety of lichens, succulents, and shrubs. It covers an area of 39,900 square kilometers (15,400 sq mi) in the south of Morocco and Mauritania.
The North Saharan steppe and woodlands is along the northern desert, next to the Mediterranean forests, woodlands, and scrub ecoregions of the northern Maghreb and Cyrenaica. Winter rains sustain shrublands and dry woodlands that form a transition between the Mediterranean climate regions to the north and the hyper-arid Sahara proper to the south. It covers 1,675,300 square kilometers (646,840 sq mi) in Algeria, Egypt, Libya, Mauritania, Morocco, and Tunisia.
The Sahara desert ecoregion covers the hyper-arid central portion of the Sahara where rainfall is minimal and sporadic. Vegetation is rare, and this ecoregion consists mostly of sand dunes (erg, chech, raoui), stone plateaus (hamadas), gravel plains (reg), dry valleys (wadis), and salt flats. It covers 4,639,900 square kilometres (1,791,500 sq mi) of: Algeria, Chad, Egypt, Libya, Mali, Mauritania, Niger, and Sudan.
The South Saharan steppe and woodlands ecoregion is a narrow band running east and west between the hyper-arid Sahara and the Sahel savannas to the south. Movements of the equatorial Intertropical Convergence Zone (ITCZ) bring summer rains during July and August which average 100 to 200 mm (4 to 8 in) but vary greatly from year to year. These rains sustain summer pastures of grasses and herbs, with dry woodlands and shrublands along seasonal watercourses. This ecoregion covers 1,101,700 square kilometres (425,400 sq mi) in Algeria, Chad, Mali, Mauritania, and Sudan.
In the West Saharan montane xeric woodlands, several volcanic highlands provide a cooler, moister environment that supports Saharo-Mediterranean woodlands and shrublands. The ecoregion covers 258,100 square kilometres (99,650 sq mi), mostly in the Tassili n'Ajjer of Algeria, with smaller enclaves in the Aïr of Niger, the Adrar Plateau of Mauritania, and the Adrar des Iforas of Mali and Algeria.
The Tibesti-Jebel Uweinat montane xeric woodlands ecoregion consists of the Tibesti and Jebel Uweinat highlands. Higher and more regular rainfall and cooler temperatures support woodlands and shrublands of date palm, acacias, myrtle, oleander, tamarix, and several rare and endemic plants. The ecoregion covers 82,200 square kilometres (31,700 sq mi) in the Tibesti of Chad and Libya, and Jebel Uweinat on the border of Egypt, Libya, and Sudan.
The Saharan halophytics is an area of seasonally flooded saline depressions which is home to halophytic (salt-adapted) plant communities. The Saharan halophytics cover 54,000 square kilometres (21,000 sq mi) including: the Qattara and Siwa depressions in northern Egypt, the Tunisian salt lakes of central Tunisia, Chott Melghir in Algeria, and smaller areas of Algeria, Mauritania, and the southern part of Morocco.
The Tanezrouft is one of the Sahara's most arid regions, with no vegetation and very little life. A barren, flat gravel plain, it extends south of Reggane in Algeria towards the Adrar des Ifoghas highlands in northern Mali.
Flora and fauna
The flora of the Sahara is highly diversified based on the bio-geographical characteristics of this vast desert. Floristically, the Sahara has three zones based on the amount of rainfall received – the Northern (Mediterranean), Central and Southern Zones. There are two transitional zones – the Mediterranean-Sahara transition and the Sahel transition zone.
The Saharan flora comprises around 2800 species of vascular plants. Approximately a quarter of these are endemic. About half of these species are common to the flora of the Arabian deserts.
The central Sahara is estimated to include five hundred species of plants, which is extremely low considering the huge extent of the area. Plants such as acacia trees, palms, succulents, spiny shrubs, and grasses have adapted to the arid conditions, by growing lower to avoid water loss by strong winds, by storing water in their thick stems to use it in dry periods, by having long roots that travel horizontally to reach the maximum area of water and to find any surface moisture, and by having small thick leaves or needles to prevent water loss by evapotranspiration. Plant leaves may dry out totally and then recover.
Several species of fox live in the Sahara including: the fennec fox, pale fox and Rüppell's fox. The addax, a large white antelope, can go nearly a year in the desert without drinking. The dorcas gazelle is a north African gazelle that can also go for a long time without water. Other notable gazelles include the rhim gazelle and dama gazelle.
The Saharan cheetah (northwest African cheetah) lives in Algeria, Togo, Niger, Mali, Benin, and Burkina Faso. There remain fewer than 250 mature cheetahs, which are very cautious, fleeing any human presence. The cheetah avoids the sun from April to October, seeking the shelter of shrubs such as balanites and acacias. They are unusually pale. The other cheetah subspecies (northeast African cheetah) lives in Chad, Sudan and the eastern region of Niger. However, it is currently extinct in the wild in Egypt and Libya. There are approximately 2000 mature individuals left in the wild.
Other animals include the monitor lizards, hyrax, sand vipers, and small populations of African wild dog, in perhaps only 14 countries and red-necked ostrich. Other animals exist in the Sahara (birds in particular) such as African silverbill and black-faced firefinch, among others. There are also small desert crocodiles in Mauritania and the Ennedi Plateau of Chad.
The deathstalker scorpion can be 10 cm (3.9 in) long. Its venom contains large amounts of agitoxin and scyllatoxin and is very dangerous; however, a sting from this scorpion rarely kills a healthy adult. The Saharan silver ant is unique in that due to the extreme high temperatures of their habitat, and the threat of predators, the ants are active outside their nest for only about ten minutes per day.
Dromedary camels and goats are the domesticated animals most commonly found in the Sahara. Because of its qualities of endurance and speed, the dromedary is the favourite animal used by nomads.
Human activities are more likely to affect the habitat in areas of permanent water (oases) or where water comes close to the surface. Here, the local pressure on natural resources can be intense. The remaining populations of large mammals have been greatly reduced by hunting for food and recreation. In recent years development projects have started in the deserts of Algeria and Tunisia using irrigated water pumped from underground aquifers. These schemes often lead to soil degradation and salinization.
Researchers from Hacettepe University have reported that Saharan soil may have bio-available iron and also some essential macro and micro nutrient elements suitable for use as fertilizer for growing wheat.
History
People lived on the edge of the desert thousands of years ago, since the end of the last glacial period. In the Central Sahara, engraved and painted rock art were created perhaps as early as 10,000 years ago, spanning the Bubaline Period, Kel Essuf Period, Round Head Period, Pastoral Period, Caballine Period, and Cameline Period. The Sahara was then a much wetter place than it is today. Over 30,000 petroglyphs of river animals such as crocodiles survive, with half found in the Tassili n'Ajjer in southeast Algeria. Fossils of dinosaurs, including Afrovenator, Jobaria and Ouranosaurus, have also been found here. The modern Sahara, though, is not lush in vegetation, except in the Nile Valley, at a few oases, and in the northern highlands, where Mediterranean plants such as the olive tree are found to grow. Shifts in Earth's axis increased temperatures and decreased precipitation, which caused an abrupt beginning of North Africa desertification about 5,400 years ago.
Kiffians
The Kiffian culture is a prehistoric industry, or domain, that existed between 10,000 and 8,000 years ago in the Sahara, during the Neolithic Subpluvial. Human remains from this culture were found in 2000 at a site known as Gobero, located in Niger in the Ténéré Desert. The site is known as the largest and earliest grave of Stone Age people in the Sahara. The Kiffians were skilled hunters. Bones of many large savannah animals that were discovered in the same area suggest that they lived on the shores of a lake that was present during the Holocene Wet Phase, a period when the Sahara was verdant and wet. The Kiffian people were tall, standing over six feet in height. Craniometric analysis indicates that this early Holocene population was closely related to the Late Pleistocene Iberomaurusians and early Holocene Capsians of the Maghreb, as well as mid-Holocene Mechta groups. Traces of the Kiffian culture do not exist after 8,000 years ago, as the Sahara went through a dry period for the next thousand years. After this time, the Tenerian culture colonized the area.
Tenerians
Gobero was discovered in 2000 during an archaeological expedition led by Paul Sereno, which sought dinosaur remains. Two distinct prehistoric cultures were discovered at the site: the early Holocene Kiffian culture, and the middle Holocene Tenerian culture. The post-Kiffian desiccation lasted until around 4600 BCE, when the earliest artefacts associated with the Tenerians have been dated to. Some 200 skeletons have been discovered at Gobero. The Tenerians were considerably shorter in height and less robust than the earlier Kiffians. Craniometric analysis also indicates that they were osteologically distinct. The Kiffian skulls are akin to those of the Late Pleistocene Iberomaurusians, early Holocene Capsians, and mid-Holocene Mechta groups, whereas the Tenerian crania are more like those of Mediterranean groups. Graves show that the Tenerians observed spiritual traditions, as they were buried with artifacts such as jewelry made of hippo tusks and clay pots. The most interesting find is a triple burial, dated to 5300 years ago, of an adult female and two children, estimated through their teeth as being five and eight years old, hugging each other. Pollen residue indicates they were buried on a bed of flowers. The three are assumed to have died within 24 hours of each other, but as their skeletons hold no apparent trauma (they did not die violently) and they have been buried so elaborately – unlikely if they had died of a plague – the cause of their deaths is a mystery.
Tashwinat Mummy
Uan Muhuggiag appears to have been inhabited from at least the 6th millennium BCE to about 2700 BCE, although not necessarily continuously. The most noteworthy find at Uan Muhuggiag is the well-preserved mummy of a young boy of approximately 2+1⁄2 years old. The child was in a fetal position, then embalmed, then placed in a sack made of antelope skin, which was insulated by a layer of leaves. The boy's organs were removed, as evidenced by incisions in his stomach and thorax, and an organic preservative was inserted to stop his body from decomposing. An ostrich eggshell necklace was also found around his neck. Radiocarbon dating determined the age of the mummy to be approximately 5600 years old, which makes it about 1000 years older than the earliest previously recorded mummy in ancient Egypt. In 1958–59, an archaeological expedition led by Antonio Ascenzi conducted anthropological, radiological, histological and chemical analyses on the Uan Muhuggiag mummy. The team claimed that the mummy was a 30-month-old child of uncertain sex. They also found a long incision on the specimen's abdominal wall, which indicated that the body had been initially mummified by evisceration and later underwent natural desiccation. The team also stated that the mummy possessed "Negroid features." However, modern genetics has since proven that the final claim is unscientific and not supported by evidence. A more recent publication referenced a laboratory examination of the cutaneous features of the child mummy in which the results verified that the child possessed a dark skin complexion. One other individual, an adult, was found at Uan Muhuggiag, buried in a crouched position. However, the body showed no evidence of evisceration or any other method of preservation. The body was estimated to date from about 7500 BP.
Nubians
During the Neolithic Era, before the onset of desertification around 9500 BCE, the central Sudan had been a rich environment supporting a large population ranging across what is now barren desert, like the Wadi el-Qa'ab. By the 5th millennium BCE, the people who inhabited what is now called Nubia were full participants in the "agricultural revolution", living a settled lifestyle with domesticated plants and animals. Saharan rock art of cattle and herdsmen suggests the presence of a cattle cult like those found in Sudan and other pastoral societies in Africa today. Megaliths found at Nabta Playa are overt examples of probably the world's first known archaeoastronomy devices, predating Stonehenge by some 2,000 years. This complexity, as observed at Nabta Playa, and as expressed by different levels of authority within the society there, likely formed the basis for the structure of both the Neolithic society at Nabta and the Old Kingdom of Egypt. Archaeological evidence has attested that population settlements occurred in Nubia as early as the Late Pleistocene era and from the 5th millennium BC onwards, whereas there is "no or scanty evidence" of human presence in the Egyptian Nile Valley during these periods, which may be due to problems in site preservation.
Egyptians
By 6000 BCE predynastic Egyptians in the southwestern corner of Egypt were herding cattle and constructing large buildings. Subsistence in organized and permanent settlements in predynastic Egypt by the middle of the 6th millennium BCE centered predominantly on cereal and animal agriculture: cattle, goats, pigs and sheep. Metal objects replaced prior ones of stone. Tanning of animal skins, pottery and weaving were commonplace in this era also. There are indications of seasonal or only temporary occupation of the Al Fayyum in the 6th millennium BCE, with food activities centering on fishing, hunting and food-gathering. Stone arrowheads, knives and scrapers from the era are commonly found. Burial items included pottery, jewelry, farming and hunting equipment, and assorted foods including dried meat and fruit. Burial in desert environments appears to enhance Egyptian preservation rites, and the dead were buried facing due west. Several scholars have argued that the African origins of the Egyptian civilisation derived from pastoral communities which emerged in both the Egyptian and Sudanese regions of the Nile Valley in the fifth millennium BCE.
By 3400 BCE, the Sahara was as dry as it is today, due to reduced precipitation and higher temperatures resulting from a shift in Earth's orbit. As a result of this aridification, it became a largely impenetrable barrier to humans, with the remaining settlements mainly being concentrated around the numerous oases that dot the landscape. Little trade or commerce is known to have passed through the interior in subsequent periods, the only major exception being the Nile Valley. The Nile, however, was impassable at several cataracts, making trade and contact by boat difficult.
Tichitt culture
In 4000 BCE, the start of sophisticated social structure (e.g., trade of cattle as valued assets) developed among herders amid the Pastoral Period of the Sahara. Saharan pastoral culture (e.g., fields of tumuli, lustrous stone rings, axes) was intricate. By 1800 BCE, Saharan pastoral culture expanded throughout the Saharan and Sahelian regions. The initial stages of sophisticated social structure among Saharan herders served as the segue for the development of sophisticated hierarchies found in African settlements, such as Dhar Tichitt. After migrating from the Central Sahara, proto-Mande peoples established their civilization in the Tichitt region of the Western Sahara[88] The Tichitt Tradition of eastern Mauritania dates from 2200 BCE[89][90] to 200 BCE. Tichitt culture, at Dhar Néma, Dhar Tagant, Dhar Tichitt, and Dhar Walata, included a four-tiered hierarchal social structure, farming of cereals, metallurgy, numerous funerary tombs, and a rock art tradition At Dhar Tichitt and Dhar Walata, pearl millet may have also been independently tamed amid the Neolithic. Dhar Tichitt, which includes Dakhlet el Atrouss, may have served as the primary regional center for the multi-tiered hierarchical social structure of the Tichitt Tradition, and the Malian Lakes Region, which includes Tondidarou, may have served as a second regional center of the Tichitt Tradition. The urban Tichitt Tradition may have been the earliest large-scale, complexly organized society in West Africa, and an early civilization of the Sahara, which may have served as the segue for state formation in West Africa.
As areas where the Tichitt cultural tradition were present, Dhar Tichitt and Dhar Walata were occupied more frequently than Dhar Néma. Farming of crops (e.g., millet) may have been a feature of the Tichitt cultural tradition as early as 3rd millennium BCE in Dhar Tichitt.
As part of a broader trend of iron metallurgy developed in the West African Sahel amid 1st millennium BCE, iron items (350 BCE – 100 CE) were found at Dhar Tagant, iron metalworking and/or items (800 BCE – 400 BCE) were found at Dia Shoma and Walaldé, and the iron remnants (760 BCE – 400 BCE) found at Bou Khzama and Djiganyai. The iron materials that were found are evidence of iron metalworking at Dhar Tagant. In the late period of the Tichitt Tradition at Dhar Néma, tamed pearl millet was used to temper the tuyeres of a oval-shaped low shaft furnace; this furnace was one out of 16 iron furnaces located on elevated ground. Iron metallurgy may have developed before the second half of 1st millennium BCE, as indicated by pottery dated between 800 BCE and 200 BCE. At Dhar Walata and Dhar Tichitt, copper was also used.
After its decline in Mauritania, the Tichitt Tradition spread to the Middle Niger region (e.g., Méma, Macina, Dia Shoma, Jenne Jeno) of Mali where it developed into and persisted as Faïta Facies ceramics between 1300 BCE and 400 BCE among rammed earth architecture and iron metallurgy (which had developed after 900 BCE). Thereafter, the Ghana Empire developed in the 1st millennium CE.
Phoenicians
The people of Phoenicia, who flourished from 1200 to 800 BCE, created a chain of settlements along the coast of North Africa and traded extensively with its inhabitants. This put them in contact with the people of ancient Libya, who were the ancestors of people who speak Berber languages in North Africa and the Sahara today.
The Libyco-Berber alphabet of the ancient Libyans of north Africa seems to have been based on Phoenician, and its descendant Tifinagh is still used today by the (Berber) Tuareg of the central Sahara.
The Periplus of the Phoenician navigator Hanno, who lived sometime in the 5th century BC, claims that he founded settlements along the Atlantic coast of Africa, possibly including the Western Sahara. The identification of the places discussed is controversial, and archeological confirmation is lacking.
Greeks
By 500 BCE, Greeks arrived in the desert. Greek traders spread along the eastern coast of the desert, establishing trading colonies along the Red Sea. The Carthaginians explored the Atlantic coast of the desert, but the turbulence of the waters and the lack of markets caused a lack of presence further south than modern Morocco. Centralized states thus surrounded the desert on the north and east; it remained outside the control of these states. Raids from the nomadic Berber people of the desert were of constant concern to those living on the edge of the desert.
Garamantes
An urban civilization, the Garamantes, arose around 500 BCE in the heart of the Sahara, in a valley that is now called the Wadi al-Ajal in Fezzan, Libya. The Garamantes built a prosperous empire in the heart of the desert. The Garamantes achieved this development by digging tunnels far into the mountains flanking the valley to tap fossil water and bring it to their fields. The Garamantes grew populous and strong, conquering their neighbors, and capturing and enslaving many individuals who were forced to work by extending the tunnels. The ancient Greeks and the Romans knew of the Garamantes and regarded them as uncivilized nomads. However, they traded with them, and a Roman bath has been found in the Garamantes' capital of Garama. Archaeologists have found eight major towns and many other important settlements in the Garamantes' territory. The Garamantes' civilization eventually collapsed after they had depleted available water in the aquifers and could no longer sustain the effort to extend the tunnels further into the mountains.
Between the first century BCE and the fourth century CE, several Roman expeditions into the Sahara were conducted by groups of military and commercial units of Romans.
Islamic and Arabic expansion
Main articles: Trans-Saharan trade and Islamization of Sudan
The Byzantine Empire ruled the northern shores of the Sahara from the 5th to the 7th centuries. After the Muslim conquest of Arabia, specifically the Arabian peninsula, the Muslim conquest of North Africa began in the mid-7th to early 8th centuries and Islamic influence expanded rapidly on the Sahara. By the end of 641 all of Egypt was in Muslim hands. Trade across the desert intensified, and a significant slave trade crossed the desert. It has been estimated that from the 10th to 19th centuries some 6,000 to 7,000 slaves were transported north each year.
The Beni Ḥassān and other nomadic Arab tribes dominated the Sanhaja Berber tribes of the western Sahara after the Char Bouba war of the 17th century. As a result, Arabian culture and language came to dominate, and the Berber tribes underwent some Arabization.
Ottoman Turkish era
In the 16th century the northern fringe of the Sahara, such as coastal regencies in present-day Algeria and Tunisia, as well as some parts of present-day Libya, together with the semi-autonomous kingdom of Egypt, were occupied by the Ottoman Empire. From 1517 Egypt was a valued part of the Ottoman Empire, ownership of which provided the Ottomans with control over the Nile Valley, the east Mediterranean and North Africa. The benefit of the Ottoman Empire was the freedom of movement for citizens and goods. Traders exploited the Ottoman land routes to handle the spices, gold and silk from the East, manufactured goods from Europe, and the slave and gold traffic from Africa. Arabic continued as the local language and Islamic culture was much reinforced. The Sahel and southern Sahara regions were home to several independent states or to roaming Tuareg clans.
European colonialism
European colonialism in the Sahara began in the 19th century. France conquered the regency of Algiers from the Ottomans in 1830, and French rule spread south from French Algeria and eastwards from Senegal into the upper Niger to include present-day Algeria, Chad, Mali then French Sudan including Timbuktu (1893), Mauritania, Morocco (1912), Niger, and Tunisia (1881). By the beginning of the 20th century, the trans-Saharan trade had clearly declined because goods were moved through more modern and efficient means, such as airplanes, rather than across the desert.
The French took advantage of long-standing animosity between the Chaamba Arabs and the Tuareg. The newly raised Méhariste camel corps were originally recruited mainly from the Chaamba nomadic tribe. In 1902, the French penetrated the Hoggar mountains and defeated Ahaggar Tuareg in the battle of Tit.
The French Colonial Empire was the dominant presence in the Sahara. It established regular air links from Toulouse (HQ of famed Aéropostale), to Oran and over the Hoggar to Timbuktu and West to Bamako and Dakar, as well as trans-Sahara bus services run by La Compagnie Transsaharienne (est. 1927). A remarkable film shot by famous aviator Captain René Wauthier in 1933 documents the first crossing by a large truck convoy from Algiers to Tchad, across the Sahara.
Egypt, under Muhammad Ali and his successors, conquered Nubia in 1820–22, founded Khartoum in 1823, and conquered Darfur in 1874. Egypt, including Sudan, became a British protectorate in 1882. Egypt and Britain lost control of the Sudan from 1882 to 1898 as a result of the Mahdist War. After its capture by British troops in 1898, the Sudan became an Anglo-Egyptian condominium.
Spain captured present-day Western Sahara after 1874, although Rio del Oro remained largely under Sahrawi influence. In 1912, Italy captured parts of what was to be named Libya from the Ottomans. To promote the Roman Catholic religion in the desert, Pope Pius IX appointed a delegate Apostolic of the Sahara and the Sudan in 1868; later in the 19th century his jurisdiction was reorganized into the Vicariate Apostolic of Sahara.
Egypt became independent of Britain in 1936, although the Anglo-Egyptian treaty of 1936 allowed Britain to keep troops in Egypt and to maintain the British-Egyptian condominium in the Sudan. British military forces were withdrawn in 1954.
Most of the Saharan states achieved independence after World War II: Libya in 1951; Morocco, Sudan, and Tunisia in 1956; Chad, Mali, Mauritania, and Niger in 1960; and Algeria in 1962. Spain withdrew from Western Sahara in 1975, and it was partitioned between Mauritania and Morocco. Mauritania withdrew in 1979; Morocco continues to hold the territory (see Western Sahara conflict).
Tuareg people in Mali rebelled several times during the 20th century before finally forcing the Malian armed forces to withdraw below the line demarcating Azawad from southern Mali during the 2012 rebellion. Islamist rebels in the Sahara calling themselves al-Qaeda in the Islamic Maghreb have stepped up their violence in recent years.
In the post–World War II era, several mines and communities have developed to use the desert's natural resources. These include large deposits of oil and natural gas in Algeria and Libya, and large deposits of phosphates in Morocco and Western Sahara. Libya's Great Man-Made River is the world's largest irrigation project. The project uses a pipeline system that pumps fossil water from the Nubian Sandstone Aquifer System to cities in the populous Libyan northern Mediterranean coast including Tripoli and Benghazi.
A number of Trans-African highways have been proposed across the Sahara, including the Cairo–Dakar Highway along the Atlantic coast, the Trans-Sahara Highway from Algiers on the Mediterranean to Kano in Nigeria, the Tripoli – Cape Town Highway from Tripoli in Libya to N'Djamena in Chad, and the Cairo – Cape Town Highway which follows the Nile. Each of these highways is partially complete, with significant gaps and unpaved sections.
People, culture, and languages
A 19th-century engraving of an Arab slave-trading caravan transporting black African slaves across the Sahara
The people of the Sahara are of various origins. Among them the Amazigh including the Tuareg, various Arabized Amaziɣ groups such as the Hassaniya-speaking Sahrawis, whose populations include the Znaga, a tribe whose name is a remnant of the pre-historic Zenaga language. Other major groups of people include the: Toubou, Nubians, Zaghawa, Kanuri, Hausa, Songhai, Beja, and Fula/Fulani (French: Peul; Fula: Fulɓe). The archaeological evidence from the Holocene period has shown that Nilo-Saharan speaking groups had populated the central and southern Sahara before the influx of Berber and Arabic speakers, around 1500 years ago, who now largely populate the Sahara in the modern era.
Arabic dialects are the most widely spoken languages in the Sahara. Arabic, Berber and its variants now regrouped under the term Amazigh (which includes the Guanche language spoken by the original Berber inhabitants of the Canary Islands) and Beja languages are part of the Afro-Asiatic or Hamito-Semitic family.[citation needed] Unlike neighboring West Africa and the central governments of the states that comprise the Sahara, the French language bears little relevance to inter-personal discourse and commerce within the region, its people retaining staunch ethnic and political affiliations with Tuareg and Berber leaders and culture. The legacy of the French colonial era administration is primarily manifested in the territorial reorganization enacted by the Third and Fourth republics, which engendered artificial political divisions within a hitherto isolated and porous region.[113] Diplomacy with local clients was conducted primarily in Arabic, which was the traditional language of bureaucratic affairs. Mediation of disputes and inter-agency communication was served by interpreters contracted by the French government, who, according to Keenan, "documented a space of intercultural mediation," contributing much to preserving the indigenous cultural identities in the region.
You may recognise this as 'Neville' from Thomas the Tank Engine.
The Q1 was designed by O.V.S Bulleid as an austerity locomotive for the Southern railway, in 1942. It's unusual appearance is the result of the need to use minimum raw materials, and be able to run through a coach washer to save labour. It was the most poweful 0-6-0 locomotive ever built in Britain.
This is the 1st time I've tried to properly model a locomotive's chassis (instead of just using some technic beams). The model also features a working representation of the inside motion.
The overall hue of this bird is more similar to an adult female than a male. This bird still lacks much hint of the bright yellow horn-shaped headband that is a signature field mark for an adult male. The broad white spots on the wing are the better clue as to its sex. (I have several other views.) Female birds' wing patterns are more complicated... many more, and smaller spots. For this species, only the adult birds (both sexes) will assume a greenish tint on their bills... this young guy has yet to begin this transition. In season I concentrate on the juvie birds... the available image references are lacking!
IMG_7512; Evening Grosbeak