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Video: What if you floated upwards 1 ft every second? [2:52]

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Video: What if you made a jetpack using rifles? [4:37]

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Video: How long would you survive with no DNA? [3:15]

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Can you power your computer by typing?

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What if everyone on Earth was in the same place and jumped at the same time?

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Could you swim in a spent nuclear fuel pool?

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Video: What if ALL the sun’s power was focused in one place? [2:50]

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Could you use a laser as an umbrella?

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What if you tried to hit a baseball pitched at 90% the speed of light?

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Video: Can you drive west to lengthen the sunset? [2:45]

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What would happen to the Earth if it suddenly stopped spinning?

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What would happen to the population if the Earth suddenly stopped spinning?

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Video: Could we survive eating only humans? [2:38]

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How detailed would the Hubbles images be if it looked at Earth?

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Could the Hubble take a photo of you?

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What if the Moon were made entirely of electrons?

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How fast could a vehicle go around a track - but the racer does not have to survive.

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How fast could a human accellerate (while staying alive)?

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Video: What if you had a mole of moles? [4:34]

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Petition to send a swimming pool to the moon!

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