View allAll Photos Tagged absorption
The setting Sun descending into a fog bank on a rural highway looking due west, on the evening of the vernal equinox, March 20, 2023. So the Sun is setting due west. The fog dims and reddens the Sun, illustrating atmospheric absorption. This was on Highway 561 in southern Alberta.
This is a single exposure with the RF100-400mm lens at 165mm on the Canon R5. Autofocused on the Sun.
Re-process
This small area of sky lies in the constellation Cassiopeia, easily spotted if you look for 5 stars making up a W-shape. Cassiopeia is a constellation rich in nebula but especially star clusters. In the top left of the image is the open cluster know as Messier 52. The 35 million year old cluster contains around 200 stars and is estimated to be anywhere from 3000 to 7000 light years away. The uncertainty in its distance is due to it lying on the galactic plane and the light leaving the cluster being absorbed and scattered by cosmic dust on its long journey to Earth. This is called interstellar absorption.
To the right of the image sitting 11,000 light years away among a molecular cloud is the aptly named Bubble nebula. The shell like nebula was formed by stellar wind blown from the massive hot star at its centre. The star, cataloged as BD+602522 is several hundred thousand times more luminous than our Sun and around 45 times the size. Its not only the cause of the bubble but also the glowing gas that surrounds it. To get an idea of the scale here, the bubble nebula is 10 light years in diameter. To travel from one side to the other in the (now retired) space shuttle at 18,000 miles an hour would take roughly 370,000 years, and thats just a tiny little bubble.
Version 1: www.flickr.com/photos/80205804@N05/15563200078/
Exposure Details:
142* 300 seconds, ISO 1600, calibration frames
12 hours total exposure
Imaging dates:
October 25th, 26th, 27th
Scope: Altair Astro 115EDT
Camera: Canon 600Da
Mount: NEQ6
If you would like to view more of my images of insects, please click "here"
For those wishing to see what this caterpillar looks like, after turning into a moth, please look "here"
I'm most grateful to all those who identified this caterpillar.
Deilephila Elpenor, known as the Elephant Hawk-moth, is a large moth of the family Sphingidae The species is found throughout Britain and Ireland. Its range extends across Europe, Russia, and into China, northern parts of the Indian subcontinent, Japan and Korea (though not Taiwan). Introduced specimens have been found in British Columbia. In most of their range, the adults are seen from May to July and the caterpillars from July to September, when they pupate. However, in some parts of the Mediterranean and China the adults may be seen from April on, sometimes having two broods in a year. The larva is about 75 millimetres (3.0 in) long, green and brown in colour. Like most hawk moth caterpillars, they have a backward curving spine or "horn" on the final abdominal segment. The anterior of the caterpillar appears to have the shape of a trunk-like snout. It is this elephant look, rather than its large size, that gives the moth its name. When startled, the caterpillar draws its trunk into its foremost body segment. This posture resembles a snake with a large head and four large eye-like patches. Caterpillars are preyed upon by birds, but these shy away (at least for some time) from caterpillars in "snake" pose. It is not known whether the birds take the caterpillar to actually resemble a snake, or are frightened by the sudden change of a familiar prey item into an unusual and boldly-patterned shape. The preferred food plants of the caterpillar are willowherb (Epilobium) and bedstraw (Galium), though it will also take fuchsias. The moth typically has a wing span of 50–70 mm (2.0–2.8 in). The upper side ground colour of head, thorax and abdomen is khaki, excepting the pink inner edges and median line of the tegulae, posterior margin of thorax, base of abdomen, abdominal median line and terminal abdominal segments. The upper side of forewing is also khaki, except the pink costa, a pink narrow, median band extending from the inner margin to Medial vein 3, a pink and narrow postmedian band which extends from the inner margin to the apex, and a pink marginal band.The basal half of the hindwing upperside is black, distal half pink (the distal edge of black area is almost straight and parallel to the outer margin). f. unicolor Tutt, has no pink coloration on the forewing
The imago (adult) feeds at night, and often takes nectar from garden plants like Honeysuckles (Lonicera) and petunias, so it is quite often seen in urban settings in the evening. It is spectacularly coloured, seeming to shimmer with green and red when in motion. The adult moths are eaten by some species of bats. This species possesses good night or scotopic vision. Its eye includes two different kinds of ommatidium; each contains nine light sensitive cells, of which seven contain a pigment whose absorption spectrum peaks in the green part of the spectrum, but in one type the remaining two receptors have peak absorption in the blue and in the other type they have peak reception in the ultra violet. The moth therefore has the cellular prerequisites for trichromatic colour vision. Adults have been shown to be capable of making colour discriminations at night-time levels of illumination, and they sustain these discriminations despite changes in the spectral content of the incident light; that is, they show colour constancy. Two subspecies, Deilephila elpenor elpenor and Deilephila elpenor lewisii, were recognised in the past, but they are no longer regarded as well distinguished. Similarly the subspecies Deilephila elpenor szechuana is now thought to be a synonym for Deilephila elpenor elpenor. The subspecies Deilephila elpenor macromera, found in southern China, northern India, Bhutan and Myanmar, is still regarded as distinct.
The related species, the small elephant hawk-moth Deilephila porcellus and Chitral elephant hawk-moth Deilephila rivularis are similar but smaller and less colourful.
From Wikipedia, the free encyclopedia
Dessous du pont de Grenelle, Paris. Premier test de mon nouvel objectif UGA, le Laowa 12mm F/2.8. Les premiers résultats semblent très satisfaisants.
Mon site Web | Mes Prestations | Mes Tutoriels (Gratuits) | Mon Facebook
Small sealed, labeled bag of Libby-vermiculite ore once distributed by WR Grace as a souvenir novelty. The intended concept behind this asbestos-bursting gimmick actually demonstrates a fundamental and unusual property of vermiculite ore and why it is used at all: it "pops" and "expands" when adequately heated.
Basically, vermiculite ore is essentially compressed layers of thin, flaky micaceous sheets with moisture trapped inside. When a requisite amount of heat is applied to the layered mineral material, it rapidly expands or exfoliates many times its original size, generating popping/crackling sounds as it quickly releases moisture vapor and creates small, accordian-like flaky structures.
These little expanded vermiculite kernels have been found to be excellent heat/cold insulators, durable, very light-weight, vermin-proof, fire-resistant, non-combustible, electrically non-conductive, water absorptive, chemically resistant, and many other properties useful to industry.
However, due to certain geological conditions at the vermiculite mine on Zonolite Mountain in Libby, Montana, these particular vermiculite ore bodies intermingled with naturally occurring asbestos and other minerals. Consequently, when Libby-vermiculite is processed, the inherent asbestiform minerals (fibrous amphiboles) are also involved in the processing and within the final "Zonolite" product itself. It has been documented and publicly reported that the highest release of airborne asbestos fibers from Libby-vermiculite occurs during the "popping" or exfoliation process in creating Zonolite.
It should be mentioned that not all vermiculite contains asbestiform minerals, but Libby-vermiculite has been studied and shown to contain a variety of potentially harmful asbestiform amphibole minerals, such as tremolite, actinolite, richterite, winchite, magnesio-arfvedsonite, ferro-edenite, etc.; a literal amphibole asbestos cocktail.
So, this is a case where asbestos was not a specific ingredient added during product manufacturing, but is generally accepted to be a contaminant or "tramp fiber" within the Libby-vermiculite ore. Despite all of this, regardless of how asbestos got into the Zonolite, unless tested conclusively its presence should conservatively be assumed; bringing us back to the little "popping" novelty souvenir, which now doesn't seem so novel anymore. Perhaps it might also serve as an example of a certain technological naiveté or even blatant disregard of "defective" product health risks.
Active Tree.Nature in motion. Active Tree rejects the static landscape, instead presenting a botanical vortex of primary colors that seem to pulse on the canvas. [View on SteveHammond.Art](stevehammond.art/galleries/various.html#activetree)
詩意的綠色 芬芳的早期色彩 樹枝深處 親密的黃色 流行的紅色 上升的可愛的藍色 富有表現力的色調 突然的氣味,
absorptions mêlant ombres implicites pratique zen concentrant peintre intégrations personnelles espace merveilleux joies innombrables,
rindreáil riachtanach aistrithe ábhar íogair céadfaí domhain nádúr idirthréimhseach an fhómhair deiridh Búdaíoch ag aithris duilleoga léitheoireachta haiku,
tańczące krople rosy anonimowe ptaki odpoczywające w poszukiwaniu wyzwolenia cierpienie wiedza wietrzne ciało poeci pielgrzymka blask księżyca myśli,
particule nepieritoare asociații naturale jurnale renumite care înțeleg vremea dimensiuni prețioase adâncimi copleșitoare,
輝かしい太陽の神殿明るい進歩の方法禅の実現空の雲魔法の修道院ウォーキングは、心の季節を開く興味深い色合いを示します.
Steve.D.Hammond.
After the final vanquish of the supporting palm tree and the trunks absorption, the old, mature tropical Strangler Fig tree can become very majestic and very very big and spreading. This otherwise topheavy tree benefits from the well engineered butresses, keeping it stable in high winds. Also very noble and beautiful! Behold, the conqueror, surveying it's empire. The tree can become very noisy with the chatter of flocks of birds eating the fruit. This is NOT the fig tree of Fig Newton fame. This is a Killer Fig Tree. Compare to the youth in the prior image where the supporting palm tree remains alive.........for a while longer. This image is of the old veteran.
Truncated version of a Student Keeling graph - CO2 in the atmosphere from 1958 to (then) present (2008), showing seasonal variation, using data collected at Mauna Loa, Hawai`i.
[If you are a teacher and you decide to use this idea, please let me know. You can contact me for files with grids for graphing, and for charts of the data from 1958 to present.]
In 1958 Charles David Keeling set up a carbon dioxide testing station on Mauna Loa, on the Big Island of Hawai`i. Data has been collected there over the past 5 decades. Here's the web page for the CO2 program. The data can be found here. Remember that -99.99 means missing data.
WHOAAA!! CHECK OUT THE NEW DATA PAGE!!!
The photo above shows part of a graph my 8th graders put together this year. The vertical scale of the graph paper ranges from 310 to 390 ppm CO2. Each class did a graph. Each group did one sheet. Each sheet held 4 years of data. I invite other teachers to do the same exercise!! Let me know how it went.
Each student graphed at least 2 years of data. Some did more for extra credit. Once they had finished their sheet, I had them cut off one end and we overlapped the other end to make this composite graph. Sadly, all got discarded at the end of the year except this one, and this one ranges only from 1958 to 1992. The rest of the classes went all the way to 3/08, and contained 4 more sheets.
So, what's the trend of CO2 in the atmosphere over the last 50 years?
The curvy line indicates the monthly data, with seasonal fluctuations. The red line is a student group's approximation of the general trend of the data. The data itself ranged from about 314 to 386 ppm, from 1958 to 2008, or an increase of approximately 70 ppm. Starting at 314, and increasing by 70 ppm is an increase of 22% .......
TWENTY TWO PERCENT INCREASE IN THE CO2 CONTENT OF THE ATMOSPHERE IN THE PAST 50 YEARS!! That's an increase by more than one fifth! And that was in 2008.
So what? Well let's ignore the global warming issue for a moment. One of the less-discussed results of CO2 in the atmosphere is that it dissolves into the oceans, and forms carbonic acid [a small amount of the CO2 combines with water to form a small amount of H2CO3 in the solution], so this trend in atmospheric CO2 also points toward acidification of the oceans. Scientists have been investigating how this might affect the marine ecosystems, especially the near-surface waters, where the atmospheric gas absorption occurs.
Well, guess what? One thing that an acid can do is dissolve things like calcium carbonate, or reduce the rate of calcification. Now, CaCO3 [thanks phyto] just happens to be the primary ingredient of the shells and casings of various marine organisms, such as clams, oysters, snails/gastropods, corals, and many planktonic organisms such as calcareous algaes. But see the first link in phyto's comment below that indicates some organisms are actually producing CaCO3 at an increasing rate. (see, for example, this article.) So, if some ecologically important organisms (what organisms aren't ecologically important?) find it progressively more difficult to form shells and casings, then what?
Maybe we're being forced to find out. Over the past few years events have occurred where oyster larvae in the Pacific Northwest were dying prematurely. The cause was ultimately traced to pH fluctuations. Now the oyster production process must be adjusted to accommodate these fluctuations -- an adaptation that will only be effective as long as the high pH periods are not too acidic.
Poem.
The mercury greys, the tree-lined ebony silhouettes, deep indigo and silver-coated marbling, gleaming, beaming off the cloud-reflected bay-
Dazzles and spell-binds.
That precious God-given ambience of early dawn blinds us but etches blurred images of heavenly proportions to our senses.
The mesmerising light, the near-silent water’s edge only broken by the lilting call of the oyster-catcher or the muffled comments of stirring sailors aboard their dreamy yachts.
These familiar sounds, the salt-laden odours of a near-calm bay and the silent, gentle absorption of the sun’s rays rouses and energises a myriad of life-forms to a glorious new day.
To witness this scene is pure bliss.
To hear, feel and sense it, is almost indescribable.
Casa Cavassa, a refined Renaissance residence in the historic heart of Saluzzo, was transformed in the late 15th century by Marquis Michele Antonio di Saluzzo into an elegant urban palace blending medieval structure with Renaissance elegance. Today home to the Civic Museum Casa Cavassa, it preserves original frescoes, stuccoes, and period furnishings, offering a rare glimpse into the domestic life and artistic tastes of the noble elite in the Marquisate of Saluzzo. Its harmonious courtyard and richly decorated interiors reflect the cultural flourishing of this independent Piedmontese state before its absorption into the Duchy of Savoy.
Just a doodle while listening to the news.
a3 on gesso with graphite and coffee,sanguine.
Thanks for the visit have a nice day.
Today we drive my eldest, Abbey, back to Bath University. It is her last year, her last term studying for her MSc Hons in Global Development and Sustainability. Abbey's dissertation is "Carbon Bio-absorption in a world of increasing atmospheric CO2 levels. Mitigation using oceanic algae" She will be a world changer. We will miss her greatly and we will not have her home until she has finished her dissertation X
Por su aspecto y los ojos dicópticos (separados) y larga probóscide se trata de un ejemplar hembra de Pangonius sp. (Familia Tabanidae). Gracias al amigo Henrik Gyurkovics por la identificación. Con esa poderosa trompa succionadora llevan a cabo la abosorción de néctar y ocasionalmente sus picaduras un tanto dolorosas.
Due to its appearance and dicoptic eyes (separated) and a long proboscis, it is a female specimen of Pangonius sp. (Family Tabanidae). Thanks to friend Henrik Gyurkovics for the identification. With that powerful sucking tube they carry out the absorption of nectar and occasionally their somewhat painful stings.
En raison de son apparence et de ses yeux dicoptiques (séparés) et d'une longue trompe, il s'agit d'un spécimen femelle de Pangonius sp. (Famille des Tabanidae). Merci à l'ami Henrik Gyurkovics pour l'identification. Avec ce puissant tube d'aspiration, ils effectuent l'absorption du nectar et parfois leurs piqûres légèrement douloureuses..
A giant mural from Nerone, one of the most fascinating and profilic street artists of the 21st century, has been painted on a building opposite Southampton Central train station. The piece, on front of the The Bulb, is notable in that it was created using paint which absorbs Co2.
Nerone is an artist known for his use of bright vibrant colours. He uses floral patterns in his work and often combines them with stylised portraiture. Recently he’s been going large and he’s become known for his ability to create huge works of art across all sorts of surfaces.
The piece in Southampton is particularly special, it is the largest wall Nerone has painted to date at 28 metres high. Such was the size it would take him 16 days to complete and it covers 1005 sq metres. It is claimed that the paint itself will support the absorption of 65kg of carbon dioxide a year.
Southampton isn't known for being receptive to street art but hopefully this fabulous piece is a move towards more art appearing on the city's buildings.
What do leaves and solar panels have in common?
Both absorb sunlight and turn it into energy. But while solar panels typically have smooth surfaces, leaves have tiny wrinkles and folds that allow for maximum light absorption.
indianapublicmedia.org/amomentofscience/leaves-inspire-so...
DSC07643
There are four hundred billion (4×10¹¹) stars in the Milky Way and one more star in the radiator grille of the vehicle; this three-pointed Mercedes star was born in 1909.
Whenever a photographer strives for the best possible view of the Cosmos, his journey will take him over mountain passes. He will rely on a vehicle made for travelling over rough ground (an SUV) in order to ascend a mountain. Then the vehicle will be included in the frame in its own right.
The Milky Way appears close to the constellation of Scorpius. They were both shining bright, as seen from Baros Pass, the highest mountain pass in Greece, at 6,237 ft (1901 m). At high altitudes there is less atmospheric absorption of the stars’ light prior to reaching the eye or the camera.
The galactic core was visible (20.6° above horizon on July 12, 2021 at 23:10’ hrs, 14℃︎). Scorpius contains the bright star Antares and the strongest X-ray source in the sky: XR-1
This spider on Sundew has been reworked ..
This is a member of a type of plant referred to as insectivorous that is a plant that gets it's nutrients from the trapping /capturing / extraction and absorption of insects that are attracted to the plant either for dew drops or nectar like substance.In the case of this plant the sapphire coloured sticky tentacles are tipped with a small jewel like drop of dew to which the insect is fatally attracted they almost always become stuck and the tentacles rapidly coil around the insect as does the delicate( 3mm across) frond the unfortunate insect is doomed from then on and is slowly consumed over a period of days macabrely it is still alive for most of that time.This tiny little spider you see here is a form of money spider of which there are many and is perfectly safe on this side of the frond being the non sticky side it appears to be taking advantage of the Sundews ability to attract insects.You often do see a variety of spiders living among all types of insectivorous plants so it must be worth it..
The original posting can be seen here www.flickr.com/photos/martinimages/504778640/in/set-72157...
Un Petit brin de BONHEUR pour vous tous ce 1° Mai 2026
Muguet de mai ou Muguet commun
(Convallaria majalis)
est une espèce de plantes à fleurs de la famille des Asparagacées. C'est une plante herbacée vivace des régions tempérées dont les fleurs printanières, petites et blanches, forment des grappes de clochettes très odorantes.
petit rappel :
en cas d'ingestion (absorption), toute la plante fleurs comprises sont très toxiques, voire mortelles, après une cueillette lavez-vous bien les mains,
---------------------------------------------------------------
A Little Bit of HAPPINESS for you all this May 1st, 2026
Lily of the Valley or Common Lily of the Valley
(Convallaria majalis)
is a species of flowering plant in the Asparagaceae family. It is a perennial herbaceous plant of temperate regions whose small, white spring flowers form clusters of highly fragrant bell-shaped blossoms.
A quick reminder:
If ingested, the entire plant, including the flowers, is highly toxic, even fatal. After picking it, wash your hands thoroughly.
Merci de votre visite et appréciations
Thank you for your visit and feedback.
Really beautiful object catalogued as 881 on the Lynds' Catalogue of Dark Nebulae.
It's one of the jewels that you could find on gamma Cygni nebula, on SADR region of Cygnus, one of my favorites regions of the sky.
"A dark nebula or absorption nebula is a type of interstellar cloud that is so dense that it obscures the visible wavelengths of light from objects behind it, such as background stars and emission or reflection nebulae. The extinction of the light is caused by interstellar dust grains located in the coldest, densest parts of larger molecular clouds." (wiki)
It was necessary to integrate more than 70 hours to show all faint and nice details on the estructure.
Here was captured using the more natural palette, please also check my HSO palette on this link:
Technical card
Imaging telescopes or lenses:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo , Altair Astro RC250-TT 10" RC Truss Tube
Imaging cameras:ZWO ASI183MM-Cool , ZWO ASI1600MM-Cool
Mounts:Skywatcher EQ6R Pro , Mesu 200 Mk2
Guiding telescopes or lenses:Celestron OAG Deluxe , Teleskop Service TSOAG9 Off-Axis Guider
Guiding cameras:ZWO ASI174 Mini , ZWO ASI290 Mini
Focal reducers:Riccardi Reducer/Flattener 0.75x , Telescope-Service TS 2" Flattener
Software:Pleiades Astrophoto PixInsight , Seqence Generator Pro
Filters:Astrodon O-III 36mm - 5nm , Astrodon S-II 36mm - 5nm , Astrodon R Gen.2 E-series 36mm , Astrodon G Gen.2 E-series 36mm , Astrodon B Gen.2 E-series 36mm , Astrodon HA 36mm - 5nm , Astrodon L Gen.2 E-series 36mm
Accessory:ZWO EFW , MoonLite NiteCrawler WR30 , TALON6 R.O.R , MoonLite CSL 2.5" Focuser with High Res Stepper Motor
Dates:July 21, 2020 , July 22, 2020 , July 25, 2020 , July 26, 2020 , July 28, 2020 , July 29, 2020
Frames:
Astrodon B Gen.2 E-series 36mm: 90x30" (gain: 75.00) -15C bin 1x1
Astrodon G Gen.2 E-series 36mm: 90x30" (gain: 75.00) -15C bin 1x1
Astrodon HA 36mm - 5nm: 205x600" (gain: 200.00) -15C bin 1x1
Astrodon O-III 36mm - 5nm: 110x600" (gain: 183.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 90x30" (gain: 75.00) -15C bin 1x1
Astrodon S-II 36mm - 5nm: 111x600" (gain: 183.00) -15C bin 1x1
Integration: 73.2 hours
Avg. Moon age: 5.35 days
Avg. Moon phase: 33.86%
Astrometry.net job: 3811358
RA center: 20h 18' 42"
DEC center: +39° 43' 1"
Pixel scale: 1.007 arcsec/pixel
Orientation: 90.555 degrees
Field radius: 0.405 degrees
Resolution: 2328x1726
Locations: AAS Montsec, Àger, Lleida, Spain
Data source: Own remote observatory
Remote source: Non-commercial independent facility
Buckling Organizations.
Res illustrantes magnas respectus chartulae acutae variae interactiones spiritus transformantes phaenomena reflexiones interna.,
συσχετιζόμενοι χώροι αποδίδονται πινακίδες που καταρρέουν καρέκλες επιδείξεις φιλοσοφία απογύμνωση υλικού αποκήρυξη κανόνων φυσική κόλαση,
manières entrelacées divers symboles inspirés énergies modèles de naufrage absorptions spectacles appelant focus superficialité dirigeants guerres agressives à l'intérieur,
proses hanesyddol geiriau dwfn reverberating rhyngweithio apathy trachwant awgrymiadau lethargies gwersi cynhenid awdurdodau anwybodaeth,
prljave strane kontradikcije izložene bučne štete neoprezni varvarski katalozi zanemarivanje slika stoka poziva daleki zvukovi sve veći nanosi,
協会を誘惑する評価されていない動き信じられないほどのゲーム無制限の火大声で叫び声を上げて固体の声を却下武器無数の仮定死の病気の心スペクターが崩れた.
Steve.D.Hammond.
At the Battle of Perryville in Kentucky, Braxton Bragg's Army of Mississippi engaged nearly 40 percent of Don Carlos Buell's Army of the Ohio; namely, the I Corps of Major General Alexander M. McCook. Fortunately for Bragg and the South, nearly 60 percent of the Union army was oblivious that there was a fight going on until late in the battle because of the absorption of battle sounds by the rolling hills. After Buell finally realized that McCook's I Corps had single-handedly been fighting a battle, his 23,000 reserve troops began to arrive at the battlefield and assist McCook. The Confederate advance hit a brick wall. As the Confederates were pushed back, skirmishes broke out in the distant town of Perryville. By darkness of night, Bragg and his troops stealthily withdrew from Kentucky. The Army of Mississippi declared a tactical win, since they had pushed back the superior numbers of McCook's I Corps a mile before having to retreat.
From the U.S. perspective, the Confederates abandoned their Heartland Offensive then and there. That was a significant and strategic Union win. No other major Confederate field army would ever return to Kentucky after the Battle of Perryville.
With a scarcity of resources for the Confederate States compared to the abundance of the United States, the Army of Mississippi strategically and quickly withdrew from Kentucky to resort to a less costly defensive campaign in friendly Tennessee. That would put the burden on the Union, in turn, to expend relatively more of its resources on offensive maneuvers in Confederate territory.
A small exception was John Hunt Morgan's Confederate cavalry brigade, which would run raids into Kentucky towns.
Why do Zebras have black and white stripes? There have been many theories. Dazzle camouflage, making it difficult for lions to visually isolate a single animal from the herd. More recently, focus has been on the relationship with tsetse flies that probably kill more zebras than lions. I had originally heard that the black and white stripes create weather at the surface of their skin, via differential heat absorption and reflection that in turn create turbulence, and hence make flight difficult for tsetse and horse flies. However, the latest, and most robust theory comes from Tim Caro, whom I was lucky enough to spend some time with at the San Diego Zoo this summer. Tim, and his team at UC Davis have shown that the stripes disrupt the flies vision, making it hard for them to land and bite. Sometimes evolution moves in unobvious ways.
More attempts to keep myself warm.
Whoever invented toe socks? Really not at all comfortable and does anyone actually have 5 toes all the same length?
Tenuous Link: holding feet -> feet holding
Here is Nickle Plate Road 83000 still looking quite nice long after the railroad's absorption into the Norfolk & Western in 1964. The N&W had similar cars to this one, also built by Greenville Steel Car which were classed B19s. I'm not sure if these exNKP cars were folded into this class or given their own designation. This car was photographed at Collinwood Ohio on April 9th, 1977 by Eric Hirsimaki.
Pigmente für die Glaskreationen
Pigmente (lateinisch pigmentum für „Farbe“, „Schminke“) sind farbgebende Substanzen, im Gegensatz zu Farbstoffen sind sie im Anwendungsmedium unlöslich. Anwendungsmedium bezeichnet dabei den Stoff, in den das Pigment eingearbeitet wird, beispielsweise in Lack oder in Kunststoffe. Der Oberbegriff für Farbstoffe und Pigmente ist Farbmittel, diese können nach der chemischen Struktur anorganisch oder organisch und nach dem Farbeindruck bunt oder unbunt sein.[1] In der Biologie bezeichnet der Begriff Pigment alle in einem lebenden Organismus farbgebenden Substanzen. Technisch gesehen handelt es sich hierbei um Farbmittel.
Maßgeblich für die Eigenschaften der Pigmente sind neben der chemischen Struktur auch Festkörpereigenschaften wie Kristallstruktur, Kristallmodifikation, Teilchengröße und Teilchengrößenverteilung, letztere durch die spezifische Oberfläche. Der Farbreiz selbst entsteht durch Absorption und Remission (Streuung oder Reflexion) bestimmter Frequenzanteile des sichtbaren Lichts.
M7 (NGC 6475), known as Ptolemy's Cluster
Credit: Giuseppe Donatiello (Oria Amateur Astrophysical Observatory - OAAO)
The open cluster M7 (NGC 6475), known as Ptolemy's because it was reported by the Greek astronomer in the 2nd century.
Messier 7 is nestled between dark clouds and dense star fields between Scorpius and Sagittarius.
At the center right is NGC 6453, a strongly reddened globular cluster.
Toward the lower left is Trumpler 30, a rather faint and scattered open cluster. Other objects and some planetary nebulae, including PN Hf 2-1.
The region rises very little from my site (just 15° at the meridian transit), therefore it is considerably affected by atmospheric absorption.
Astrograph 110/250mm + 2x (500mm f/4.4) - DSLR
Jumping spiders have very good vision centered in their anterior median eyes (AME). Their eyes are able to create a focused image on the retina, which has up to four layers of receptor cells in it. Physiological experiments have shown that they may have up to four different kinds of receptor cells, with different absorption spectra, giving them the possibility of up to tetrachromatic color vision, with sensitivity extending into the ultra-violet range. It seems that all salticids, regardless of whether they have two, three or four kinds of color receptors, are highly sensitive to UV light. Some species (for example, Cosmophasis umbratica) are highly dimorphic in the UV spectrum, suggesting a role in sexual signaling. Color discrimination has been demonstrated in behavioral experiments.
The principal eyes have high resolution (11 min. visual angle), but the field of vision is narrow, from 2-5 degrees.
Because the retina is the darkest part of the eye and it moves around, one can sometimes look into the eye of a jumping spider and see it changing color. When it is darkest, you are looking into its retina and the spider is looking straight at you.
best viewed LARGE:
www.flickr.com/photos/rundstedt/3086946574/sizes/l/in/set...
The Saxifraga are, with the common Dandelion, beyond the best pionner vegetals. Note the partly red leafs, the result of an adaptative switch from Chlorophyll A to B, broading the wavelenght spectrum of light absorption as sun weakens and days are becoming shorter.
Typically leaves are flat and thin, thereby maximising the surface area directly exposed to light and promoting photosynthetic function. Externally they commonly are arranged on the plant in such ways as to expose their surfaces to light as efficiently as possible without shading each other, but there are many exceptions and complications; for instance plants adapted to windy conditions may have pendent leaves, such as in many willows and Eucalyptus.
Likewise, the internal organisation of most kinds of leaves has evolved to maximise exposure of the photosynthetic organelles, the chloroplasts, to light and to increase the absorption of carbon dioxide. Most leaves have stomata, which open or narrow to regulate the exchange of carbon dioxide, oxygen, and water vapour with the atmosphere.
Excerpt from youractionsmatter.ca/bee-thankful/:
Bee Thankful
• Bees are vital to the preservation of ecological balance and biodiversity in nature. They provide one of the most recognizable ecosystem services, pollination, which is what makes most food production possible.
• One third of all the food we eat depends on bees, and of the 100 crop varieties that provide 90% of the world’s food, 71 are pollinated by bees.
• Honeybees alone pollinate 80% of all flowering plants, including more than 130 types of fruits and vegetables.
• The journey of bees begins with manure and fertilizer. It is used to enrich the soil, providing essential nutrients that help seeds germinate and plants grow.
• Water, a fundamental element for life, aids in the absorption of these nutrients from the soil, allowing the plant to grow strong and healthy.
• As the plant matures on the fertile land, it develops vibrant flowers rich in nectar and pollen.
• Bees are attracted to these flowers for their nectar, which they use to create honey, and in the process, they pollinate the plant, contributing to its reproductive cycle and the growth of new plants.
• This illustrates a symbiotic relationship, where bees and plants rely on each other for survival and growth.
• Despite their profound importance for the food we eat, bee populations are declining at an alarming rate.
• Last winter, Canada had its largest honeybee colony loss in the past 20 years, with 46% of colonies perishing nationally.
• Global warming, pesticide use, habitat destruction, and air pollution all contribute to bee mortality.
• By understanding the vital role bees play in our ecosystem and food production, and making conscious choices to help, we can contribute to the conservation of bees and the vital services they provide.
The High Barnet and Mill Hill East segments of the Northern Line diverge immediately north of Finchley Central station. In the previous ownership of the Great Northern Railway and LNER, the station was named Finchley (Church End). The absorption of the Northern Heights lines into the London Underground network saw the Tube service begin in 1941, with the station renamed Finchley Central. The 1959 Tube Stock that had been drafted from the Piccadilly Line was due for imminent replacement at the date of this view of a southbound train.
February 1997
Rollei 35 camera
Kodak Ektachrome 100 film.
The Gordon River rises below Mount Hobhouse in the Franklin-Gordon Wild Rivers National Park draining the eastern slopes of the King William Range. The river flows generally south and to the west of the Gordon Range before flowing west through the Gordon Gap and spilling into Lake Gordon, an impounded reservoir created by damming the Gordon at the Gordon Dam. Together with water fed from Lake Pedder, the principal purpose of the reservoir is for generation of hydro-electricity at the Gordon Power Station.
Flowing from east to west through Lake Gordon, the river continues west, passing through the Gordon Splits, a series of gorges once considered impassable until 1958 when Olegas Truchanas, a conservationist and nature photographer, was the first person to navigate the Gordon River in a kayak. The river flows north by west and then due north and finally due west as it reaches its mouth and empties into Macquarie Harbour at Wrights Bay.
From source to mouth, the river is joined by 25 tributaries including the Gell, Boyes, Pokana, Holley, Adams, Serpentine, Albert, Orange, Smith, Denison, Olga, Sprent, Franklin, and the Spence rivers.
The river descends 570 metres (1,870 ft) over its 172-kilometre (107 mi) course;[1] much of which is located in an uninhabited wilderness area, contained with the Franklin-Gordon Wild Rivers National Park and Southwest National Park. The lower part of the Gordon River is part of the Tasmanian Wilderness World Heritage Area and contains a cold-climate rainforest and rare trees. As with many rivers in western Tasmania, the water is fresh and drinkable, yet has the colour of weak tea due to the absorption of tannin from button grass growing in the catchment area.
Additional dams were proposed for the lower part of the river. However, these plans were changed as a result of significant opposition and public opinion. In particular, the Franklin Dam was proposed just downstream of the junction with the Franklin River, and would have flooded much of both rivers. It was a major political and environmental issue in the 1980s.
Boat excursions to the lower Gordon River from Macquarie Harbour are popular with tourists in Strahan. Seaplane flights depart Strahan during the warmer months and include an out landing on the Gordon River
... and for meditation and inner self-absorption. I found this place at a very early winter morning in the grasslands of Hongyuan beside the monastery Song Tsa close to township Tan Ke Xian. Leica M6, Elmarit M 2,8/21mm, Fuji RVP100F, converted to b&w, Scanned with Nikon Supercoolscan 8000ED.
ALL RIGHT RESERVED
All material in my gallery MAY NOT be reproduced, copied, edited, published, transmitted or uploaded in any way without my permission.
Another shot from Belur. The rains had just stopped and a passage of light ...lucky to
get a patch of blue n shades of white in the sky. THE LEFT section is at a higher level than the right, dry except for the floor and has a roof ...the light/color absorption is different. Same WB settings across.
DRI- Handheld. 3 different exposures. with spot focus on the pillar for one exposure and 2 others between the left flank wall and the right section - sky. I had to hold the cam steady with one hand and move the cursor to specific spots...aligned in PS. Individual exposures treated in ACR.
Messier 20 (NGC 6514) The Trifid Nebula
Named for its 3 lobe appearance and located in Sagitarius this stellar nursery is approximatly 5200 light years away it is one of the youngest emission nebula, estimated to be about 300,000 years old.
A group of recently formed, massive, bright stars toward the centre of the nebula are easily visible. These stars are releasing a flood of ultraviolet radiation that dramatically influences the structure and evolution of the surrounding nebula. Star formation is no longer occurring in the immediate vicinity of this group of bright stars because their intense radiation has blown away the gas and dust from which new stars are made.
The nebula measures 10 light years across and is a wonderful example of the three most common nebula consisting of an emission nebula (red, pinkish region) reflection nebula (blue region) and absorption nebula (dark region) making it a favourite target for astrophotographers
It can be observed with nothing more than a pair of binoculars, but a good scope will reveal some of the intricate detail to be found here.
Location/Date
June 4 2019 Lennox & Addington dark Sky Viewing Area
Equipement
TS 130 apo f7
SW EQ6 Pro
ZWO 1600mm Pro @ -20 Unity Gain
ZWO EFW 7pos LRGB Ha Oiii Sii
Orion Mini 50mm Guide Scope w Orion SS Autoguider
Pegasus Astro Electronic Focuser
Iterations
10 @ 120s R
10 @ 120s G
10 @ 120s B
12 @ 300s Ha
Capture & Processing Software
Pixinsight, Deep sky stacker, Sequence Generator Pro, PHD 2, Photoshop
I hadn't intended to produce a second example of Sunderland District's HUP-C Leyland Leopards, but a simple swap of front panels enabled Northern's CCD 714D to be presented as HUP 947C. This is how it appears (without the lower grille originaly fitted) on page 45 of 'Northern General and its Subsidiaries - From No Place to Success' (Autobus Review Publications). To quote from the caption to that image:
"New to Sunderland District in 1965 and fitted with BET-style dual-purpose bodywork, Leyland Leopard 347 (347 HUPC) is seen here wearing its original light blue and cream, livery. Transferred to Northern upon its absorption of Sunderland District on 1 January 1975, it was repainted into NBC poppy red and renumbered 4304. It was withdrawn in 1978." (08-Feb-10)
STRICTLY COPYRIGHT: You may download a copy of any image for your personal use, but it would be an offence to remove the copyright information or to post it elsewhere without the express permission of the copyright owner.
This star-studded image from NASA's Hubble Space Telescope depicts globular cluster NGC 6717, which lies more than 20,000 light-years from Earth in the constellation Sagittarius. Globular clusters are roughly spherical collections of stars tightly bound together by gravity.
The bright foreground stars at the center of the image reside between Earth and the cluster, and are distinguished by the crisscross diffraction spikes that form when their light interacts with the structures supporting Hubble’s secondary mirror.
The constellation Sagittarius is in the same area of the night sky as the center of the Milky Way, which is filled with light-absorbing gas and dust. This absorption of light – which astronomers call “extinction” – makes studying globular clusters near the galactic center challenging. To determine the properties of NGC 6717, astronomers relied on a combination of Hubble’s Wide Field Camera 3 and the Advanced Camera for Surveys.
Image credit: ESA/Hubble and NASA, A. Sarajedini
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
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Excerpt from youractionsmatter.ca/bee-thankful/:
Bee Thankful
• Bees are vital to the preservation of ecological balance and biodiversity in nature. They provide one of the most recognizable ecosystem services, pollination, which is what makes most food production possible.
• One third of all the food we eat depends on bees, and of the 100 crop varieties that provide 90% of the world’s food, 71 are pollinated by bees.
• Honeybees alone pollinate 80% of all flowering plants, including more than 130 types of fruits and vegetables.
• The journey of bees begins with manure and fertilizer. It is used to enrich the soil, providing essential nutrients that help seeds germinate and plants grow.
• Water, a fundamental element for life, aids in the absorption of these nutrients from the soil, allowing the plant to grow strong and healthy.
• As the plant matures on the fertile land, it develops vibrant flowers rich in nectar and pollen.
• Bees are attracted to these flowers for their nectar, which they use to create honey, and in the process, they pollinate the plant, contributing to its reproductive cycle and the growth of new plants.
• This illustrates a symbiotic relationship, where bees and plants rely on each other for survival and growth.
• Despite their profound importance for the food we eat, bee populations are declining at an alarming rate.
• Last winter, Canada had its largest honeybee colony loss in the past 20 years, with 46% of colonies perishing nationally.
• Global warming, pesticide use, habitat destruction, and air pollution all contribute to bee mortality.
• By understanding the vital role bees play in our ecosystem and food production, and making conscious choices to help, we can contribute to the conservation of bees and the vital services they provide.
Excerpt from youractionsmatter.ca/bee-thankful/:
Bee Thankful
• Bees are vital to the preservation of ecological balance and biodiversity in nature. They provide one of the most recognizable ecosystem services, pollination, which is what makes most food production possible.
• One third of all the food we eat depends on bees, and of the 100 crop varieties that provide 90% of the world’s food, 71 are pollinated by bees.
• Honeybees alone pollinate 80% of all flowering plants, including more than 130 types of fruits and vegetables.
• The journey of bees begins with manure and fertilizer. It is used to enrich the soil, providing essential nutrients that help seeds germinate and plants grow.
• Water, a fundamental element for life, aids in the absorption of these nutrients from the soil, allowing the plant to grow strong and healthy.
• As the plant matures on the fertile land, it develops vibrant flowers rich in nectar and pollen.
• Bees are attracted to these flowers for their nectar, which they use to create honey, and in the process, they pollinate the plant, contributing to its reproductive cycle and the growth of new plants.
• This illustrates a symbiotic relationship, where bees and plants rely on each other for survival and growth.
• Despite their profound importance for the food we eat, bee populations are declining at an alarming rate.
• Last winter, Canada had its largest honeybee colony loss in the past 20 years, with 46% of colonies perishing nationally.
• Global warming, pesticide use, habitat destruction, and air pollution all contribute to bee mortality.
• By understanding the vital role bees play in our ecosystem and food production, and making conscious choices to help, we can contribute to the conservation of bees and the vital services they provide.
Absorption nebulae or dark nebulae are clouds of gas and dust that don’t emit or reflect light, but block light coming from behind them. These nebulae tend to contain large amounts of dust, which allows them to absorb visible light from stars or nebulae beyond them. Astronomer William Herschel, discussing these seemingly empty spots in the late 1700s, called them “a hole in the sky.”
These opaque, dark knots of gas and dust called "Bok globules" are absorbing light in the center of the nearby emission nebula and star-forming region, NGC 281. Bok globules may form stars, or may eventually dissipate.
Image credit: NASA, ESA, and The Hubble Heritage Team (STScI/AURA); Acknowledgment: P. McCullough (STScI)
#NASA #MarshallSpaceFlightCenter #MSFC #Marshall #HubbleSpaceTelescope #HST #astronomy #space #astrophysics #solarsystemandbeyond #gsfc #Goddard #GoddardSpaceFlightCenter #ESA #EuropeanSpaceAgency #nebula #absorptionnebula