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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 Einstein explains his famous formula E=mc²

"Mass and energy are both but different manifestations of the same thing...very small amounts of mass may be converted into a very large amount of energy and vice versa."

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See video The Machine Is Using Us - Web 2.0

A visual explanation / demonstration of Web 2.0 in less than five minutes.

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See video The Known Universe by AMNH

The known universe as mapped through astronomical observations, from the Himalayas to the moon's orbit, the orbits of the planets, the solar system, the galaxy and beyond.

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See video World War II in Color - D-Day

Actual footage of the end of World War II: the Allied invasion of Normandy on June 6th 1944 and the subsequent liberation of France.

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See video Aurora Northern Lights as seen from Space - Timelapse

A video of Northern Lights as seen from earth's orbit, captured by Astronaut Don Pettit.

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See video Killer Whales (Orcas) hunt and play with sea lions

Killler Whales hunt and play with sea lions. Surprisingly, one of the orca's sets its last catch free, even bringing it back to shore.

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See video What if the Earth were Hollow?

What is the deepest we have ever dug into the earth? What if we went straight through?

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See video Non-Newtonian liquid - hole that does not disappear

A mixture of cornstarch or potato flour and water in a ratio between 2:1 and 3:2.

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See video History of the Internet

An animated documentary of the history of the Internet from 1957 to 2009. Subtitles are available in Bulgarian, Chinese, English, French, German and Greek.

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See video Brainiac: Alkali Metals

What happens when alkali metals come into contact with water?

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See video Obama Speech: 'A More Perfect Union'

In the course of the contest for the 2008 Democratic Party presidential nomination, Obama gives this speech to address racial tensions, white privilege, and race and inequality in the United States.

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