xkcd's What If?
408K subscribers
3:52
What if everyone jumped at once?
xkcd's What If?
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What if you swam in a nuclear storage pool?
xkcd's What If?
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Would a Submarine Work as a Spaceship?
xkcd's What If?
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Could you make an umbrella out of lasers?
xkcd's What If?
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What if you threw a baseball at nearly light speed?
xkcd's What If?
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What if Earth suddenly stopped spinning?
xkcd's What If?
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What if NASCAR had no rules?
xkcd's What If?
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What would a magnitude 15 earthquake be like?
xkcd's What If?
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What if we aimed the Hubble Telescope at Earth?
xkcd's What If?
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