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I WAS THERE! How David Blaine flew helium balloons to the height of jets (and jumped)
Season 4
Episode 29
10:12
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Physics Girl
This Thing is -270°C and is EVERYWHERE
Season 4
Episode 18
In this video, Dianna explores one of the most mysterious discoveries in physics - a constant microwave signal that seemed to be coming from everywhere in the universe. It turned out to be light from an unusual process 13.8 billion years ago.
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