View allAll Photos Tagged countercurrent
Logging is a way of moving logs from a forest to sawmills and pulp mills downstream of stream of a river. It was the largest transport method for early logging in Europe and North America.
The workers lived in cold untouched timber cottages in the woods near the river. There they slept, cooking food over open fire, without the chimney, only an opening on the roof where the smoke went out.
It was a hard and risky work. Often the logs gathered together in the river, and the arbitrator carefully walked out of the logs to try to get rid of them. Many perished during this moment.
At this river where I caught these cottages at a float, they flooded the logs countercurrently. A very hard work, but if they managed to get them in the river, this part led to a final station, much better paid for each stock.
Photo my own, texture: Moonglowlilly.
She walked up to me on the frozen pond and gave this lovely stretching pose.
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A swan walks on ice-cold feet because waterfowl have a special countercurrent system (rete mirabile) in their legs: Warm blood transfers heat to the cold, returning blood before it reaches the feet, so they remain cold and the ice doesn't melt, saving energy and preventing the feet from freezing solid. Only sick or immobilized animals can freeze in extreme cold and then require assistance. The same system helps us eat ice cream ?
Agli uomini è stato insegnato che è virtuoso essere d’accordo con gli altri. Ma il creatore è colui che è in disaccordo. Agli uomini è stato insegnato che è virtuoso nuotare seguendo la corrente. Ma il creatore è quell’uomo che va controcorrente. Agli uomini è stato insegnato che e una virtù restare insieme. Ma il creatore è l’uomo che sta da solo.
Any Rand
Foto dal mio archivio, una ragazza si allena vogando nei canali di Padova, andando, contro controcorrente, incontro al sole che tramonta.
#countercurrent #controcorrente #remo #paddle #row #remare #corrente #sole #sun #tramonto #acqua #luce #arancione #mad #mood #mud #meditation #padova #bacchiglione
Diese Krickenten machen auf einem fast vollständig gefrorenen See ein gemeinsames Energiesparpäuschen. Sie haben (wie Pinguine) einen eingebauten Gegenstromwärmetauscher in den Beinen der dafür sorgt, dass ihre vorhandene Körperwärme nicht bis in die Füße gelangt, sondern fast vollständig im Körper bleibt. So kühlen sie nicht aus und weil die Füße so kalt sind, dass sie das Eis nicht anschmelzen, frieren sie beim schlafen auf dem Eis auch nicht fest. In Grad Celsius bedeutet dies, dass ihre Füße je nach Außentemperatur und ob sie sich bewegen oder stillstehen zwischen -2° und 5° Celsius kalt sind. Das reicht gerade noch dafür dass das Blut bzw. Gewebe nicht einfriert. Ihre Körpertemperatur ist währenddessen fast 40°. Ist die Natur nicht wunderbar?
Mehr Fotos von Krickenten findet ihr in meinem Krickenten Album
These teals are taking a joint energy-saving break on an almost completely frozen lake. Like penguins, they have a built-in countercurrent heat exchanger in their legs, which prevents their body heat from reaching their feet and allows it to remain almost entirely in their bodies. This prevents them from cooling down, and because their feet are so cold that they do not melt the ice, they do not freeze to the ice while sleeping. In degrees Celsius, this means that their feet are between -2° and 5° Celsius depending on the outside temperature and whether they are moving or standing still. This low temperature is just enough to prevent their blood and tissue from freezing. Meanwhile, their body temperature is almost 40°C. Isn't nature wonderful?
You can see more photos of teals in my Teal Album
'An Israeli sniper serving in Gaza during the ongoing genocide confirmed forces are ordered to shoot starving aid seekers despite posing no threat. “I have no idea how many I have killed, a lot of children,” he said, adding “The officers don’t care if children die.”' - countercurrents.org/2025/09/israeli-soldier-serving-in-ga... ▪️Dad-ddyneiddio yw dull Israel o weithio/ Dehumanisation is the way Israel works: substack.com/@deaglanomulrooney/note/c-157003890?r=3qbxbp... ▪️▪️▪️▪️▪️ Diwrnod glawog yng Nghaerfyrddin/ A wet day in Carmarthen - Heol y Bragdy/ Brewery Road
Another king penguin picture from Grytviken, South Georgia. A number of these birds were clustered together in the shallow water that was flowing out over the stone beach from a small creek. They seem to like doing that sort of thing. I've seen photos where there are thousands lining a river of snow and glacier melt. Birds have a system of countercurrent heat exchange in their legs that helps keep them warm in cold weather. I wonder if it works in reverse to help the penguins cool off. It cool for the humans, but perhaps that was not the case for the blubber rich kings. I was not able to find out if it does indeed work both ways, but it seems possible.
The weather in spring 2023 doesn't Have much to offer for landscape photography, so here is another motif from the urban landscape genre: the small Swiss town Aarburg is dominated by a rocky ledge on which Aarburg Fortress has been enthroned since the 12th century. The neo-Gothic Reformed Church from the 19th century stands on a terrace between the fortress and the old town. On the other foot, the rectory from the 18th century leans against the rocky outcrop. The Aare Bridge was planned and built in 1912 by Robert Maillart.
The special feature of the Aare near Aarburg is due to the flow conditions: the river flows almost at right angles to the north, the main flow collides with the fortress rock and a powerful countercurrent arises, called the scales.
The Bosporus is 19 miles (30 km) long and has a maximum width of 2.3 miles (3.7 km) at the northern entrance and a minimum width of 2,450 feet (750 metres) between the Ottoman fortifications of Rumelihisarı and Anadoluhisarı. Its depth varies from 120 to 408 feet (36.5 to 124 metres) in midstream. In its centre a rapid current flows from the Black Sea to the Sea of Marmara, but a countercurrent below the surface carries water of greater salinity from the Sea of Marmara to the Black Sea. The Bosporus is heavily fished, since the channel is a seasonal migration route for fish to and from the Black Sea.
2 image stitch
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El otro día, sin nada mejor que hacer, decidí ir contracorriente.
Me bajé hasta el río Duero que como sabes pasa por Zamora y me puse a nadar. (contracorriente)
Naduve y naduve hasta casi agotar mis fuerzas. Y de repente miré a mi alrededor y vi que había llegado a Soria, nuestra ciudad hermana. Esa que comparte río con nosotros.
(Andé con cuidado de meter la cámara en una bolsa de plástico para que no se mojase).
.....................................
The other day, with nothing better to do, I decided to go against the current.
I went down to the river Duero that as you know happens through Zamora and I started to swim. (Countercurrent)
I swam and swam and swam until I nearly exhausted my strength. And suddenly I looked around and saw that I had reached Soria, our sister city. The one who shares the river with us.
(I was careful to put the camera in a plastic bag so it would not get wet.)
The Spanish text contains puns or worldplays in reference to a difficult joke to translate. I am sorry.
If just a whiff is
enough to scatter
days, it's useless
to combat the dissent
of time. The setback
is grace, it's a form
of life in which life goes
towards itself
countercurrent
caught by a gentle
breeze. There's a love
in deceit, a malice
in the reluctance pushing
things, the untamed ones, backwards.
Se basta appena
un soffio a sparpagliare
i giorni, è inutile
combattere il dissenso
del tempo. Il contrattempo
è grazia, è una forma
di vita in cui la vita va
incontro a se stessa
controcorrente
presa da una brezza
leggera. C'è un amore
nel dolo, una malizia
nella riluttanza che sospinge
le cose, le indocili, a ritroso.
di/by Valerio Magrelli, in Poesie, Torino, Einaudi, 1996, p.148
(ns. trad. verso l'inglese)
Ladakh, Asia, July 2009.
Portrait of two children monks.
Ladakh, Asia, luglio 2009.
Ritratto di due monaci bambini.
Flickr Explore Apr. 1° 2015 #73
Primero, gracias a todos por hacerme llegar a las 18.000 visitas.....
MIL GRACIAS!!!!!!!......
First, thank you all for making me reach the 18,000 visits .....
THANKS !!!!!!!......
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Contra el absurdo de los celos
el espacio abierto
contra la pasividad
la curiosidad enciendo
contra lo lento y cotidiano
la exploración
contra tanto cuento
contra el aburrimiento
contra el balance decimal
me someto al disparate
contra la eternidad
la belleza del instante
contra el vacío admitido
me lleno de sustancia
y contra la distancia
la unidad completa
contracorriente
contra la perfección - el desorden
contra lo elaborado - lo espontáneo
contracorriente
y contra todo esto yo no me someto
contra la corriente aún iré más fuerte.
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Countercurrent
Despues de mi tercera decepcion con la tan famosa puesta de sol de Santorini fui a contracorriente y me levanté al amanecer, autenticamente sublime
After my third disapointing about the famous sunset of Santorini i go countercurrent and i woke up to see the sunrise, autentically manificent
Fira, Santorini
I have been haunted by many of the ideas presented in a book , A Season at the Point. A good read if you are a birder. "...an intimate view of the currents, countercurrents and passions of the naturalists whose lives revolve around Cape May’s annual drama of migration. This book is bound to lead others to appreciate and protect the birds of prey that grace our skies and the wild lands they need to survive.” –Roger Tory Peterson
"Cape May Point, New Jersey, is home to a natural phenomenon of stunning proportions. Each autumn millions of migrating birds converge here on their annual flight to wintering grounds as far away as Brazil and Peru. Season at the Point, the rich and telling story of the birds and birders of Cape May, evokes the sense of mystery and excitement that pervades the Cape as birders gather to count owls by the hundreds, hawks by the tens of thousands, and shorebirds and songbirds by the hundreds of thousands." groveatlantic.com
"Mystery and excitement." Adventure around every corner all set in a story book of a town. At my side Eileen, my sister, and indefatigable birder, naturalist guide, and Flickr friend Kyle Dunbar.
I want these precious areas protected and cherished.
I have sometimes wondered why birds feet don't freeze in the winter. Plagiarised from All About Birds.
Songbirds do get very cold feet: the surface temperature of their toes may be barely above freezing even as the bird maintains its core body temperature above 100°F (38°C). But most birds don’t succumb to frostbite because there is so little fluid in the cells of their feet, and their feet are mostly tendons and bones with little muscle or nerve tissue.
Birds also have a countercurrent heat exchange system in their legs and feet—the blood vessels going to and from the feet are very close together, so blood flowing back to the body is warmed by blood flowing to the feet. The newly cooled blood in the feet lowers heat loss from the feet, and the warmed blood flowing back into the body prevents the bird from becoming chilled. And because bird circulation is so fast, blood doesn’t remain in the feet long enough to freeze.
What did we do before the internet, I would have had to spend days in the library to find this out!
Globalism is currently working in two distinct ways. One is an attempt to submerge the world into a singular "global" political-economy. Here the corporations that power the markets have the upper hand, and so it is possible to see international architecture that now looks the same everywhere; famous franchises all over the world where the food and coffee is the same; worldwide media that is essentially controlled by six major corporations. This is the standardised, one-size-fits-all model. And I loathe it.
But there is also a countercurrent at work - often referred to as multiculturalism (though I'd rather lose the "-ism"). This is where local cultures are cherished and encouraged. Real difference is acknowledged and relationships through mutual understanding are key to a peaceful community. There are photographers working in this field in Australia right now. Here is some of their work.
From top left we have Shirin Neshat (born Iran 1957) "I am its secret" 1993 from her series "Women of Allah".
In the middle is Zhang Huan (born China 1965) "1/2 Text" where the body is inscribed.
The wonderfully colourful portrait of young African men is by Leonce Agbodjelou (born Benin 1965).
Underneath those are the evocative portraits of Greek mourners by Georgia Metaxas (born Australia 1974).
On the right we have an interesting presentation with a trigger warning. You can read all about it by enlarging this collage. It tells us a great deal about a society that is more offended by the image of a dead worker, than the fact that a real person was murdered.
Quizás no es una composición acertada por la falta de aire en la parte superior , pero me pudo mas el momento y la mirada del chaval que la perfección de la foto
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Maybe not a composition accepted by the lack of air at the top, but I like the moment and the look of the guy that perfection photo
Frank Marino / All Along The Watchtower 1979
500 PX / JENDRIX56 PHOTOGRAPHY
PORTAFOLIO photo.medvekoma.net/Photos/24523071@N02
My Dark side in DEPHORMOGRAPHY
PRESENTACION
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© Brian Callahan 2011 All rights reserved.
Got some pretty heavy snow on my walk this day. The arctic foxes seemed to really be in their element.
The Arctic Fox lives in some of the most frigid extremes on the planet. Among its adaptations for cold survival are its deep, thick fur, a system of countercurrent heat exchange in the circulation of paws to retain core temperature, and a good supply of body fat. The fox has a low surface area to volume ratio, as evidenced by its generally rounded body shape, short muzzle and legs, and short, thick ears. Since less of its surface area is exposed to the Arctic cold, less heat escapes the body. Its furry paws allow it to walk on ice in search of food. The Arctic Fox has such keen hearing that it can precisely locate the position of prey under the snow. When it finds prey, it pounces and punches through the snow to catch its victim. Its fur changes colour with the seasons: in the winter it is white to blend in with snow, while in the summer months it changes to brown.
© Brian Callahan 2011 All rights reserved.
I went for a walk in the zoo, because I thought the sky was lightening up. When I got there, it started snowing in earnest, which made the arctic foxes very happy. This one came over to investigate the guy with the camera.
The Arctic Fox lives in some of the most frigid extremes on the planet. Among its adaptations for cold survival are its deep, thick fur, a system of countercurrent heat exchange in the circulation of paws to retain core temperature, and a good supply of body fat. The fox has a low surface area to volume ratio, as evidenced by its generally rounded body shape, short muzzle and legs, and short, thick ears. Since less of its surface area is exposed to the Arctic cold, less heat escapes the body. Its furry paws allow it to walk on ice in search of food. The Arctic Fox has such keen hearing that it can precisely locate the position of prey under the snow. When it finds prey, it pounces and punches through the snow to catch its victim. Its fur changes colour with the seasons: in the winter it is white to blend in with snow, while in the summer months it changes to brown.
en.wikipedia.org/wiki/Strait_of_Dover
The Strait of Dover or Dover Strait, historically known as the Dover Narrows (French: pas de Calais [pɑ d(ə)‿kalɛ], "Strait of Calais"; Dutch: Nauw van Kales [nʌu̯ vɑn kaːˈlɛː] or Straat van Dover), is the strait at the narrowest part of the English Channel, marking the boundary between the Channel and North Sea, separating Great Britain from continental Europe. The shortest distance across the strait, 33.3 kilometres (20.7 miles; 18.0 nautical miles), is from the South Foreland, northeast of Dover in the English county of Kent, to Cap Gris Nez, a cape near to Calais in the French département of Pas-de-Calais. Between these points lies the most popular route for cross-channel swimmers.[1] The entire strait is within the territorial waters of France and the United Kingdom, but a right of transit passage under the UNCLOS exists allowing unrestricted shipping.[2][3][4]
On a clear day, it is possible to see the opposite coastline of England from France and vice versa with the naked eye, with the most famous and obvious sight being the white cliffs of Dover from the French coastline and shoreline buildings on both coastlines, as well as lights on either coastline at night, as in Matthew Arnold's poem "Dover Beach".
Shipping traffic
Most maritime traffic between the Atlantic Ocean and the North Sea and Baltic Sea passes through the Strait of Dover, rather than taking the longer and more dangerous route around the north of Scotland. The strait is the busiest international seaway in the world, used by over 400 commercial vessels daily.[3] This has made traffic safety a critical issue, with HM Coastguard and the Maritime Gendarmerie maintaining a 24-hour watch over the strait and enforcing a strict regime of shipping lanes.[5]
In addition to the intensive east–west traffic, the strait is crossed from north to south by ferries linking Dover to Calais and Dunkirk.[3] Until 1994 these provided the only route across it for land transport. The Channel Tunnel now provides an alternative route, crossing beneath the strait at an average depth of 45 m (148 ft) below the seabed.
The town of Dover gives its name to one of the sea areas of the British Shipping Forecast.
Geological formation
Map showing the hypothetical extent of Doggerland (c. 10,000 BCE), which provided a land bridge between Great Britain and continental Europe
The strait is believed to have been created by the erosion of a land bridge that linked the Weald in Great Britain to the Boulonnais in the Pas de Calais. The predominant geology on both the British and French sides and on the seafloor is chalk. Although somewhat resistant to erosion, erosion of both coasts has created the famous white cliffs of Dover in the UK and the Cap Blanc Nez in France. The Channel Tunnel was bored through solid chalk.
The Rhine (as the Urstrom) flowed northwards into the North Sea as the sea level fell during the start of the first of the Pleistocene Ice Ages. The ice created a dam from Scandinavia to Scotland, and the Rhine, combined with the Thames and drainage from much of north Europe, created a vast lake behind the dam, which eventually spilled over the Weald into the English Channel. This overflow channel became the Strait of Dover about 425,000 years ago. A narrow deep channel along the middle of the strait was the bed of the Rhine in the last Ice Age. A geological deposit in East Anglia marks the old preglacial northward course of the Rhine.
A 2007 study[6][7] concluded the English Channel was formed by erosion caused by two major floods. The first was about 425,000 years ago, when an ice-dammed lake in the southern North Sea overflowed and broke the Weald-Artois chalk range in a catastrophic erosion and flood event. Afterwards, the Thames and Scheldt flowed through the gap into the English Channel, but the Meuse and Rhine still flowed northwards. In a second flood about 225,000 years ago the Meuse and Rhine were ice-dammed into a lake that broke catastrophically through a high weak barrier (perhaps chalk, or an end-moraine left by the ice sheet). Both floods cut massive flood channels in the dry bed of the English Channel, somewhat like the Channeled Scablands or the Wabash River in the USA. A further update in 2017, attributed a series of previously described underwater holes in the Channel floor -"100m deep" and in places "several kilometres in diameter" to lake water plunging over a rock ridge causing isolated depressions or plunge pools.[8] The melting ice and rising sea levels submerged Doggerland, the area linking Britain to France 6,500–6,200 BCE.
The Lobourg strait, a major feature of the strait's seafloor, runs its 6 km (4 mi) wide slash on a NNE–SSW axis. Nearer to the French coast than to the English coast, it runs along the Varne sandbank where it plunges to 68 m (223 ft) at its deepest, and along the latter's south-east neighbour the Ridge bank (French name "Colbart"[9]) with a maximum depth of 62 m (203 ft).[10]
Marine wildlife
The submarine depth of the strait varies between 68 m (223 ft) at the Lobourg strait and 20 m (66 ft) at the highest banks. It presents a succession of rocky areas relatively deserted by ships wanting to spare their nets, and of sandy flats and sub-aqueous dunes. The strong currents of the Channel are slowed down around the rocky areas of the strait, with formation of countercurrents and calmer zones where many species can find shelter.[11] In these calmer zones, the water is clearer than in the rest of the strait; thus algae can grow despite the 30 m (98 ft) average depth and help increase diversity in the local species – some of which are endemic to the strait. Moreover, this is a transition zone for the species of the Atlantic Ocean and those of the southern part of the North Sea.
This mix of various environments promotes a wide variety of wildlife.[12]
The Ridens de Boulogne, a 10–20 m (33–66 ft) deep[13] rocky high ground partially covered with sand located 15 nmi (28 km; 17 mi) to the west of Boulogne, boasts the highest production of maerl in the strait.[13]
A 682 km2 (263 sq mi) area of the strait is classified as a Natura 2000 protection zone listed under the name Ridens et dunes hydrauliques du Pas de Calais (Ridens and sub-aqueous dunes of the Dover Strait). This area includes the sub-aqueous dunes of Varne, Colbart, Vergoyer and Bassurelle, the Ridens de Boulogne, and the Lobourg channel which provides calmer and clearer waters due to its depth reaching 68 m (223 ft).[14]
Unusual crossings
Many crossings other than in conventional vessels have been attempted, including by pedalo, jetpack, bathtub, amphibious vehicle and more commonly by swimming. French law bans many of these while English law does not, so most such crossings originate in England.[citation needed]
Ice
In the late 17th century during the "Little Ice Age" there are reports of severe winter ice in the Strait of Dover, including a case in 1684 of only a league of open water remaining between Dover and Calais.[15]; see [1] for another report of severe ice in the English Channel.