xkcd's What If?
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What if the moon turned into a black hole?
xkcd's What If?
Is there such a thing as a magnitude 0 earthquake?
xkcd's What If?
How high could the magnitude of Earthquakes go?
xkcd's What If?
What if you funneled Niagara Falls through a straw?
xkcd's What If?
What if you used a flamethrower as a snowblower?
xkcd's What If?
What if you literally had all the money in the world?
xkcd's What If?
What if the sun suddenly went out?
xkcd's What If?
What if the Earth rotated 90 degrees?
xkcd's What If?
What if the wise men kept walking after Jesus’s birth?
xkcd's What If?
What if you built a billion-story building?
xkcd's What If?
What if we put a pool on the moon?
xkcd's What If?
But what if we tried MORE power?
xkcd's What If?
What if everyone pointed a laser at the moon?
xkcd's What If?
What if Earth grew 1cm every second?
xkcd's What If?
What if a glass of water were LITERALLY half empty?
xkcd's What If?
Could you survive a nanosecond on the Sun?
xkcd's What If?
What if we teleported the oceans to Mars?
xkcd's What If?
What if you tried to print Wikipedia?
xkcd's What If?
What if you drained the oceans?
xkcd's What If?
If all humans died, when would the last light go out?
xkcd's What If?
What if all the lightning on Earth struck the same place at
xkcd's What If?
What if everyone jumped at once?
xkcd's What If?
What if you swam in a nuclear storage pool?
xkcd's What If?
Would a Submarine Work as a Spaceship?
xkcd's What If?
Could you make an umbrella out of lasers?
xkcd's What If?
What if you threw a baseball at nearly light speed?
xkcd's What If?
What if Earth suddenly stopped spinning?
xkcd's What If?
What if NASCAR had no rules?
xkcd's What If?
What would a magnitude 15 earthquake be like?
xkcd's What If?
What if we aimed the Hubble Telescope at Earth?
xkcd's What If?
xkcd's What If?