
The Ultimate Rocket Fuel
Clip: Episode 5 | 2m 27sVideo has Closed Captions
Jim Al-Khalili demonstrates why hydrogen is the ultimate rocket fuel.
Jim Al-Khalili recreates Konstantin Tsiolkovsky’s thought experiments to demonstrate why hydrogen is the ultimate rocket fuel.

The Ultimate Rocket Fuel
Clip: Episode 5 | 2m 27sVideo has Closed Captions
Jim Al-Khalili recreates Konstantin Tsiolkovsky’s thought experiments to demonstrate why hydrogen is the ultimate rocket fuel.
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Video has Closed Captions
Blast off into history to see how rockets originated not in the sky, but in a cave. (30s)
Video has Closed Captions
Franklin Chang-Diaz demonstrates the energy required to launch a rocket into space. (2m 29s)
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