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 ?
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
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
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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© VanveenJF Photography
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
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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.
A camel is an even-toed ungulate within the genus Camelus, bearing distinctive fatty deposits known as "humps" on its back. The three surviving species of camel are the dromedary, or one-humped camel (C. dromedarius), which inhabits the Middle East and the Horn of Africa; the Bactrian, or two-humped camel (C. bactrianus), which inhabits Central Asia; and the critically endangered wild Bactrian camel (C. ferus) that has limited populations in remote areas of northwest China and Mongolia. Bactrian camels take their name from the historical Bactria region of Central Asia (Yam & Khomeiri, 2015). Both the dromedary and the Bactrian camels have been domesticated; they provide milk, meat, hair for textiles or goods such as felted pouches, and are working animals with tasks ranging from human transport to bearing loads.
The term camel is derived via Latin and Greek (camelus and κάμηλος kamēlos respectively) from Hebrew or Phoenician gāmāl
Most of the world's camels are dromedaries (94%) while Bactrian camels and wild Bactrian camels make up only 6% of the total camel population (Yam & Khomeiri, 2015). "Camel" may also be used more broadly to describe any of the seven camel-like mammals in the family Camelidae: the three true camels and the four New World camelids (the llama, alpaca, guanaco, and vicuña).
The average life expectancy of a camel is 40 to 50 years. A full-grown adult camel stands 1.85 m (6 ft 1 in) at the shoulder and 2.15 m (7 ft 1 in) at the hump. Camels can run at up to 65 km/h (40 mph) in short bursts and sustain speeds of up to 40 km/h (25 mph).[10] Bactrian camels weigh 300 to 1,000 kg (660 to 2,200 lb) and dromedaries 300 to 600 kg (660 to 1,320 lb). For instance, the average speed for the one humped camel is about 40 km/hour while the two humped camel has around 27.2 km/hour (Yam & Khomeiri, 2015).
The male dromedary camel has in its throat an organ called a dulla, a large, inflatable sac he extrudes from his mouth when in rut to assert dominance and attract females. It resembles a long, swollen, pink tongue hanging out of the side of its mouth. Camels mate by having both male and female sitting on the ground, with the male mounting from behind. The male usually ejaculates three or four times within a single mating session. Camelids are the only ungulates to mate in a sitting position
Camels do not directly store water in their humps as was once commonly believed. The humps are actually reservoirs of fatty tissue: concentrating body fat in their humps minimizes the insulating effect fat would have if distributed over the rest of their bodies, helping camels survive in hot climates. In hot and dry environments, within 8 to 10 days only the dromedary camels might consume water which during this period the third of their body's weight may be reduced due to the dehydration When this tissue is metabolized, it yields more than one gram of water for every gram of fat processed. This fat metabolization, while releasing energy, causes water to evaporate from the lungs during respiration (as oxygen is required for the metabolic process): overall, there is a net decrease in water.
Camels have a series of physiological adaptations that allow them to withstand long periods of time without any external source of water. Unlike other mammals, their red blood cells are oval rather than circular in shape. This facilitates the flow of red blood cells during dehydration and makes them better at withstanding high osmotic variation without rupturing when drinking large amounts of water: a 600 kg (1,300 lb) camel can drink 200 L (53 US gal) of water in three minutes.
Camels are able to withstand changes in body temperature and water consumption that would kill most other animals. Their temperature ranges from 34 °C (93 °F) at dawn and steadily increases to 40 °C (104 °F) by sunset, before they cool off at night again. In general, to compare between camels and the other livestock, camels lose only 1.3 liters of fluid intake every day while the other livestock lose 20 to 40 liters per day Maintaining the brain temperature within certain limits is critical for animals; to assist this, camels have a rete mirabile, a complex of arteries and veins lying very close to each other which utilizes countercurrent blood flow to cool blood flowing to the brain. Camels rarely sweat, even when ambient temperatures reach 49 °C (120 °F) Any sweat that does occur evaporates at the skin level rather than at the surface of their coat; the heat of vaporization therefore comes from body heat rather than ambient heat. Camels can withstand losing 25% of their body weight to sweating, whereas most other mammals can withstand only about 12–14% dehydration before cardiac failure results from circulatory disturbance.
When the camel exhales, water vapor becomes trapped in their nostrils and is reabsorbed into the body as a means to conserve water. Camels eating green herbage can ingest sufficient moisture in milder conditions to maintain their bodies' hydrated state without the need for drinking.
Domesticated camel calves lying in sternal recumbency, a position that aids heat loss
The camels' thick coats insulate them from the intense heat radiated from desert sand; a shorn camel must sweat 50% more to avoid overheating. During the summer the coat becomes lighter in color, reflecting light as well as helping avoid sunburn. The camel's long legs help by keeping its body farther from the ground, which can heat up to 70 °C (158 °F). The two humped camels classified as bigger than the dromedary camels and for this reason, the skin became significantly more helpful for usage as wool and leather Dromedaries have a pad of thick tissue over the sternum called the pedestal. When the animal lies down in a sternal recumbent position, the pedestal raises the body from the hot surface and allows cooling air to pass under the body.
Camels' mouths have a thick leathery lining, allowing them to chew thorny desert plants. Long eyelashes and ear hairs, together with nostrils that can close, form a barrier against sand. If sand gets lodged in their eyes, they can dislodge it using their transparent third eyelid. The camels' gait and widened feet help them move without sinking into the sand.
The kidneys and intestines of a camel are very efficient at reabsorbing water. Camel urine comes out as a thick syrup, and camel feces are so dry that they do not require drying when the Bedouins use them to fuel fires. The camels are able to live in difficult conditions without drinking water due to their ability to produce small and pretty dry droppings as well as they use the water to maintain their body’s temperature to fit with the region surrounding them
The camel immune system differs from those of other mammals. Normally, the Y-shaped antibody molecules consist of two heavy (or long) chains along the length of the Y, and two light (or short) chains at each tip of the Y. Camels, in addition to these, also have antibodies made of only two heavy chains, a trait that makes them smaller and more durable. These "heavy-chain-only" antibodies, discovered in 1993, are thought to have developed 50 million years ago, after camelids split from ruminants and pigs.
More Morrocco here :
The exacerbation of egotrip in social networks culminates in a flood of selfies and countercurrent of anti-selfies.
This project proposes a reflection on this state of affairs, operating in the context of digital media (from the capture and elaboration of the images until its processing and first instance of exhibition) and in the scope of the photographic tradition.
The series “And if I wasn’t me?" Aims to hold an exhibition, which puts my recent artistic production in perspective, merging previous works with the current series, so as to give all works retrospectively the emphasis critical of the culture of narcissism.
My intention in creating this series that already has more than 1400 images is to create a strangeness with a merge between my face and the face of other people, which makes me think because I am the way I am, and what would happen if I were not me if I had another face. As if another identity could change my way of seeing me, of seeing the world and of interacting with it.
My inspiration for the creation of this series is Francis Bacon (1928/1992). His paintings are often violent works, with the theme often distorted or in the process of movement.
I strongly condemn the killings of Palestinians by Israeli forces and express my solidarity with the brave Palestinians who have been facing the Israeli terrorism for many years but never give in.
As Prophet Mohammad (P.B.U.H.) said "If u see something wrong happening stop it with your hands, if u cant then stop it with your tongue and even if u cant do that atleast consider it wrong in your heart and it is the least stage of Emaan (belief)"
So considering that PROTEST is the least we can do for them. So I request all of you to write a statement or two in protest to Israeli barbarism. Even if you are not a Muslim I think you can see whatever Israel is doing is against Human Rights and against humanity.
Hitler Yesterday Israel Today
THE GRANDCHILDREN OF HOLOCAUST SURVIVORS FROM WORLD WAR II ARE DOING TO THE PALESTINIANS EXACTLY WHAT WAS DONE TO THEM BY NAZI GERMANY
Late in the day, Galápagos Penguins (Sphensicus mendiculus) drink in the sun’s rays on a favorite penguin pull-out on Sombrero Chino (Chinese Hat), an islet in the northwestern part of the Galápagos Archipelago (southeast of Santiago Island). Evidence of the spot’s popularity is the abundant guano covering the lava. The western islands are more affected by upwelling of cold water from the depths of the Pacific, and that makes the water surrounding them colder (73º F)(23º C). This colder water provides more plentiful food for penguins; but it requires the penguins to warm up by sunning themselves on the sun-heated lava. Sombrero Chino (Chinese Hat), Galápagos, Ecuador, 05 February 2015. Panasonic Lumix DMC-TS5, Gary Glen Price, Capture One Pro.
2015-02-05b Sombrero Chino Lumix P1000320 Sunbathers of Sombrero Chino.jpg