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See video Deep-sea barreleye fish with a transparent head

This remarkable barreleye fish (Macropinna microstoma) has a transparent, fluid-filled dome on its head. This enables its ultra-sensitive barrel-shaped eyes to look directly up or rotate to look forward.

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See video Second 2008 Presidential Debate - McCain and Obama (Full Video)

Second 2008 Presidential Debate with Senator John McCain and Senator Barack Obama.

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See video Aurora Northern Lights Timelapse

Auroras are colorful displays of light in the sky, most commonly seen in the polar regions. 

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See video Arithmetic, Population, and Energy Part 1 of 8

Most people do not understand exponential growth, yet the concept is of fundamental importance. Lecture by Dr. Albert A. Bartlett, professor emeritus of Physics at the University of Colorado-Boulder.

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See video Giant Liger: What Happens When You Mate a Tiger and a Lion

The liger is a rare hybrid cross between a male lion and a female tiger. They are the largest cats in the world.

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See video Shark Attack - From Documentary Earth

Close-up slow motion footage of how a great white shark attacks its prey.

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See video The Large Hadron Collider (LHC) explained

An animation explaining how the Large Hadron Collider works. It is the largest and most complex scientific instrument ever built.

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See video Michio Kaku on Extraterrestrial Life, Multiple Dimensions and the Multiverse

Astrophysician Michio Kaku speaks with great clarity and insight about extraterrestrials and intelligent life, multiple dimensions, and the possibility of multiple universes.

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See video Laminar Flow

Video showing Laminar Flow and demonstrating fluid flowing in layers. The flow is "smooth" in contrast to turbulent flow which is "chaotic" .

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See video Global Warming - How It All Ends

A logical argument for taking action.

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See video The Internet in 1969

A remarkable prediction of future technology back in 1969, when the PC did not even exist yet (the first PC was the Apple II in 1977).

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See video Shuttle launch as seen from inside the Orbitor

View the Shuttle launch from the point of view of the crew inside of the Orbiter. Liftoff is at 3:30.

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