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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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11:21
The TRAPPIST-1 exoplanet system has seven earth-like planets.
6:32
Why are plants green? Is there a reason plants evolved to be green, globally?
8:03
How can you time 45 minutes with 2 sticks that each burn for one hour?
9:09
How can you use an infrared camera to see through walls? To inspect the scene of a crime?
