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Videos / Physics & Chemistry

Dara O Briain Explains Weightlessness
Why are astronauts weightless in space when the moon is held by Earth's gravity? An explanation and demonstration of just how microgravity works in orbit.

  • Currently /5 Stars.
NASA | A Year in the Life of Earth's CO2
An ultra-high-resolution NASA computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe. Plumes of carbon dioxide in the simulation swirl and shift as winds disperse the greenhouse gas away

  • Currently /5 Stars.
Fission and Fusion
An explanation of the differences between the two terms, and what both processes entail.

  • Currently /5 Stars.
Volcanic Twister
Bardarbunga, the volcano which began erupting in Iceland recently, has been the subject of close scientific scrutiny. Check out what they caught on thermal camera!

  • Currently /5 Stars.
Tying Water Into Knots
William Irvine and Dustin Kleckner, physicists at the University of Chicago, describe the knotted fluid vortex they created in the lab -- a scientific first, they say.

  • Currently /5 Stars.
Liquid Nitrogen In A Vacuum Chamber
This video showcases the bizarre behavior of liquid nitrogen in a vacuum chamber!

  • Currently /5 Stars.