Documentaries, Documentary, Earth, Planet, Space, Universe Documentary, Nature Documentary, Nature – What Plants Talk About – Documentary, documentary, documentary films, documentaries, documentaries films, hd documentary, hd documentaries, earth planet, earth documentary, planet documentary, earth planet future, document, documen, document films, doc, watch documentary, documen films, documentary films, documentaries films, space, the universe, universe documentary,
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The Universe is all of time and space and its contents. The Universe includes planets, stars, galaxies, the contents of intergalactic space, the smallest subatomic particles, and all matter and energy. The observable universe is about 28 billion parsecs (91 billion light-years) in diameter at the present time. The size of the whole Universe is not known and may be infinite. Observations and the development of physical theories have led to inferences about the composition and evolution of the Universe.[Documentaries]

Throughout recorded history, cosmologies and cosmogonies, including scientific models, have been proposed to explain observations of the Universe. The earliest quantitative geocentric models were developed by ancient Greek philosophers and Indian philosophers. Over the centuries, more precise astronomical observations led to Nicolaus Copernicus’s heliocentric model of the Solar System and Johannes Kepler’s improvement on that model with elliptical orbits, which was eventually explained by Isaac Newton’s theory of gravity. Further observational improvements led to the realization that the Solar System is located in a galaxy composed of billions of stars, the Milky Way. It was subsequently discovered that our galaxy is just one of many. On the largest scales, it is assumed that the distribution of galaxies is uniform and the same in all directions, meaning that the Universe has neither an edge nor a center. Observations of the distribution of these galaxies and their spectral lines have led to many of the theories of modern physical cosmology. The discovery in the early 20th century that galaxies are systematically redshifted suggested that the Universe is expanding, and the discovery of the cosmic microwave background radiation suggested that the Universe had a beginning.Finally, observations in the late 1990s indicated the rate of the expansion of the Universe is increasing indicating that the majority of energy is most likely in an unknown form called dark energy. The majority of mass in the universe also appears to exist in an unknown form, called dark matter.[Documentaries]

The Big Bang theory is the prevailing cosmological model describing the development of the Universe. Space and time were created in the Big Bang, and these were imbued with a fixed amount of energy and matter; as space expands, the density of that matter and energy decreases. After the initial expansion, the Universe cooled sufficiently to allow the formation first of subatomic particles and later of simple atoms. Giant clouds of these primordial elements later coalesced through gravity to form stars. Assuming that the prevailing model is correct, the age of the Universe is measured to be 13.799±0.021 billion years.[Documentaries]

There are many competing hypotheses about the ultimate fate of the Universe. Physicists and philosophers remain unsure about what, if anything, preceded the Big Bang. Many refuse to speculate, doubting that any information from any such prior state could ever be accessible. There are various multiverse hypotheses, in which some physicists have suggested that the Universe might be one among many universes that likewise exist. [Documentaries].

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Keywords Channel: National Geographic, Documentary, Nature, documentary nature, documentary national geographic, nature documentary, nation nature, nature geographic, National Geographic Documentary. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries, watch documentary, watch documentaries, watch documentary films, the universe, universe, universe documentary, space documentary, space exploration, universe documentaries, space documentaries.

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Photographer Stian Rekdal combined thousands of photos to create this time-lapse video showcasing Iceland’s natural beauty. He spent three weeks—and more than 3,000 miles—on the road and took more than 40,000 photos. He used about 3,500 of these to make the video.

#NationalGeographic #Iceland #TimeLapse

About National Geographic:
National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible.

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Humans aren’t separate from nature, we’re part of it. Let’s make our planet proud.
National Geographic Society is proud to be partnering with the International Union for the Conservation of Nature (IUCN) for the 2016 World Conservation Congress.

About National Geographic:
National Geographic is the world’s premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what’s possible.

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Do flowers dance? YES, THEY DO DANCE! Here’s the PROOF!

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Chameleons don’t change color to match their environment; it’s just the opposite. How do they do it? By manipulating tiny crystals in their skin. Now, UC Berkeley researchers are on a quest to create synthetic chameleon skin inspired by these reptiles’ uncanny ability.

DEEP LOOK: a new ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Get a new perspective on our place in the universe and meet extraordinary new friends. Explore big scientific mysteries by going incredibly small.

— How do Chameleons Change Color?

Chameleons are some of the most brilliantly colored animals on the planet. But how did they evolve the ability to change color?

Scientists used to believe that chameleons changed color by spreading out pigments in their skin, much like octopuses or squid do.

The top layer of chameleon skin – called the epidermis – contains yellow pigment cells called xanthophores, and red pigment cells called erythrophores. But the amount of pigment in the cells stays the same, even when the chameleon changes color.

Just beneath the chameleon’s skin is a layer of cells called iridophores. These cells contain microscopic salt crystals, which are arranged in a three-dimensional pattern like oranges stacked on a fruit stand.

When light hits the crystals, some wavelengths are absorbed and some are reflected. The result, to our eyes, is the beautiful rainbow of colors on the chameleon’s skin. But what we’re actually seeing is light that is bouncing off of these tiny crystals. What we perceive as green, for example, is blue wavelengths of light being reflected off the crystals and through the layer of yellow xanthophore cells in the chameleon’s epidermis. The result is bright green skin that contains no green pigment!

The process of changing color is called metachrosis.

— Why do Chameleons Change Color?

Chameleons don’t change color to match their environment. In fact, it’s just the opposite.

Their baseline is camouflage.

When chameleons are relaxed, they’re mostly green. They naturally blend into their home in the forest canopy. They even mimic leaves by dancing around a little.

But when they feel threatened, annoyed, or just want to show a little swagger, that’s when their color changes.

Scientists once thought that chameleons color-changing abilities allowed them to better camouflage themselves. Most species of chameleons live high in the forest canopy and their various shades of green provide natural camouflage. Even their movement provides camouflage – they dance around to mimic leaves blowing in the wind.

In fact, chameleons change color primarily to communicate with each other, as though they were living mood rings. Males will warn each other about their territory and females will change color to let males know whether they’re interested in breeding.

Chameleons also have a second layer of iridiophore cells just beneath the first. The crystals in that layer are larger and reflect light waves in the infrared wavelengths. This suggests that chameleons are also changing colors to regulate their temperature, according to Milinkovitch. Chameleons are cold-blooded and heat their bodies with the warmth of the sun.

Read the article for this video on KQED Science:
http://ww2.kqed.org/science/2015/08/25/natures-mood-rings-how-chameleons-really-change-color/

Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is supported by HopeLab, The David B. Gold Foundation; S. D. Bechtel, Jr. Foundation; The Dirk and Charlene Kabcenell Foundation; The Vadasz Family Foundation; Smart Family Foundation and the members of KQED.
#deeplook

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Documentaries, Documentary, Nature, National Geographic – Under the Antarctic Ice – Nature Documentary . Nature Documentary. National Geographic, Documentary, Nature, documentary nature, documentary national geographic, nature documentary, nation nature, nature geographic. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries. watch documentary, watch documentary films. [nature documentary]
Watch more documentary: https://www.youtube.com/watch?v=hgOlZVG2RZs&list=PLTEq-I2WHEVgLvnFhFdBs43-rlm6uCGN-
The Antarctic ice sheet is one of the two polar ice caps of the Earth. [nature documentary]

It covers about 98% of the Antarctic continent and is the largest single mass of ice on Earth. It covers an area of almost 14 million square km (5.4 million sq. miles) and contains 26.5 million cubic km of ice (6.36 million cubic miles). That is, approximately 61 percent of all fresh water on the Earth is held in the Antarctic ice sheet, an amount equivalent to about 70 m of water in the world’s oceans. In East Antarctica, the ice sheet rests on a major land mass, but in West Antarctica the bed can extend to more than 2,500 m below sea level. Much of the land in this area would be seabed if the ice sheet were not there. [nature documentary]

National Geographic – Under the Antarctic Ice – Nature Documentary. Documentary National Geographic, National Geographic Documentary, Documentary Films, Documentaries. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries.

In contrast to the melting of the Arctic sea ice, sea ice around Antarctica has expanded in recent years. The reasons for this are not fully understood, but suggestions include the climatic effects on ocean and atmospheric circulation of the ozone hole, and/or cooler ocean surface temperatures as the warming deep waters melt the ice shelves. [nature documentary]

Keywork Channel: Nature Documentary, National Geographic, Documentary, Nature, documentary nature, documentary national geographic, nature documentary, nation nature, nature geographic. national geographic documentaries, documentaries national geographic, documentaries films, documentaries hd, nature documentaries, documen, document, docu, doc, documenta, documentar, documentari, documetarie, documentaries. [nature documentary]

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The Universe (Wikipedia)

The Universe is all of time and space and its contents. The Universe includes planets, stars, galaxies, the contents of intergalactic space, the smallest subatomic particles, and all matter and energy. The observable universe is about 28 billion parsecs (91 billion light-years) in diameter at the present time. The size of the whole Universe is not known and may be infinite. Observations and the development of physical theories have led to inferences about the composition and evolution of the Universe.

Throughout recorded history, cosmologies and cosmogonies, including scientific models, have been proposed to explain observations of the Universe. The earliest quantitative geocentric models were developed by ancient Greek philosophers and Indian philosophers. Over the centuries, more precise astronomical observations led to Nicolaus Copernicus’s heliocentric model of the Solar System and Johannes Kepler’s improvement on that model with elliptical orbits, which was eventually explained by Isaac Newton’s theory of gravity. Further observational improvements led to the realization that the Solar System is located in a galaxy composed of billions of stars, the Milky Way. It was subsequently discovered that our galaxy is just one of many. On the largest scales, it is assumed that the distribution of galaxies is uniform and the same in all directions, meaning that the Universe has neither an edge nor a center. Observations of the distribution of these galaxies and their spectral lines have led to many of the theories of modern physical cosmology. The discovery in the early 20th century that galaxies are systematically redshifted suggested that the Universe is expanding, and the discovery of the cosmic microwave background radiation suggested that the Universe had a beginning.Finally, observations in the late 1990s indicated the rate of the expansion of the Universe is increasing indicating that the majority of energy is most likely in an unknown form called dark energy. The majority of mass in the universe also appears to exist in an unknown form, called dark matter. [nature documentary]

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Note: Video not belong me. All rights belongs to respective owners and creator!

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All the animals living in Asia and its surrounding seas and islands are considered the fauna of Asia. Since there is no natural biogeographic boundary in the west between Europe and Asia, the term “fauna of Asia” is somewhat elusive. Asia is the eastern part of the Palearctic ecozone (which in turn is part of the Holarctic), and its south-eastern part belongs to the Indomalaya ecozone (previously called the Oriental region). Asia shows a notable diversity of habitats, with significant variations in rainfall, altitude, topography, temperature and geological history, which is reflected in its richness of animal life

The formation of the Asian fauna began in the Mesozoic with the splitting of Laurasian supercontinent. Asia blends elements from the both ancient supercontinents of Laurasia and Gondwana. Gondwanian elements were introduced from Africa and by India, which detached from Gondwana approximately 90 MYA, carrying its Gondwana-derived flora and fauna northward. Glaciation during the most recent ice age and the immigration of man affected the distribution of Asian fauna (see also Sahara pump theory). Eurasia and North America were many times connected by the Bering land bridge, and have very similar mammal and bird faunas, with many Eurasian species having moved into North America, and fewer North American species having moved into Eurasia (many zoologists consider the Palearctic and Nearctic to be a single Holarctic ecozone).[3] See also List of extinct animals of Asia.

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1. Namib Desert Sidewinder

In Africa’s harshest environment both hunter and hunted endure the extremes and only the fittest survive. Namib Desert Sidewinder Skillfully the Perengey’s adder buries itself beneath the hot desert surface leaving only its tail as a worm-like lure to entice prey like shovel-snouted lizards or barking geckos. They approach unaware of the potential danger lying beneath the surface and fatal consequences of the snake’s split-second attack and paralyzing venom.

#Snake #Adder #AfricasDEadliest #Namib #Ambush #Nature #Wildlife #Animals

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Documentary, Documentaries, Documentary Films, Documentaries Nature, Nature – Amazing Wildlife of Alaska – Documentary. Documentary Films, Documentary HD, Documentaries.
The wildlife of Alaska is diverse and abundant. This article gives information on a selection of the best-known animal species in Alaska. [Documentary]

Brown bear

Brown bear at Katmai National Park.
Alaska contains about 98% of the U.S. brown bear population and 70% of the total North American population. An estimated 30,000 brown bears live in Alaska. Of that number, about 1,450 are harvested by hunters yearly. [Documentary]

Black bear

The black bear is much smaller than the brown bear. They are found in larger numbers on the mainland of Alaska, but are not found on the islands off of the Gulf of Alaska and the Seward Peninsula. Black bears have been seen in Alaska in a few different shades of colors such as black, brown, cinnamon, and even a rare blue shade. They are widely scattered over Alaska, and pose more of a problem to humans because they come in close contact with them on a regular basis. They are considered a nuisance because they frequently stroll through local towns, camps, backyards, and streets because of their curiosity and easy food sources such as garbage. Black bears are big dangerous animals that attack when bothered or hungry. As many as 100,000 black bears live in Alaska.

Polar bear

Polar bears on the Beaufort Sea coast.
Alaska’s polar bear populations are concentrated along its Arctic coastlines. In the winter, they are most common in the Kuskokwim Delta, St. Matthew Island, and at the southernmost portion of St. Lawrence Island. During the summer months, they migrate to the coastlines of the Arctic Ocean and the Chukchi Sea. There are two main polar bear populations in Alaska. The Chukchi population is found off in the western part of Alaska near the Wrangell Islands, and the Beaufort Sea population is located near Alaska’s North Slope. [Documentary]

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Animal Documentary 2015| Ocean Monsters| Nature Documentary

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