xkcd's What If?

1:07

Is there such a thing as a magnitude 0 earthquake?

1:06

How high could the magnitude of Earthquakes go?

3:37

What if you funneled Niagara Falls through a straw?

2:53

What if you used a flamethrower as a snowblower?

2:58

What if you literally had all the money in the world?

3:12

What if the sun suddenly went out?

6:47

What if the Earth rotated 90 degrees?

2:46

What if the wise men kept walking after Jesus’s birth?

3:56

What if you built a billion-story building?

2:53

What if we put a pool on the moon?

4:02

But what if we tried MORE power?

5:37

What if everyone pointed a laser at the moon?

5:16

What if Earth grew 1cm every second?

4:20

What if a glass of water were LITERALLY half empty?

3:29

Could you survive a nanosecond on the Sun?

4:28

What if we teleported the oceans to Mars?

2:57

What if you tried to print Wikipedia?

3:30

What if you drained the oceans?

5:04

If all humans died, when would the last light go out?

3:47

What if all the lightning on Earth struck the same place at once?

3:52

What if everyone jumped at once?

3:58

What if you swam in a nuclear storage pool?

4:23

Would a Submarine Work as a Spaceship?

3:06

Could you make an umbrella out of lasers?

3:15

What if you threw a baseball at nearly light speed?

4:35

What if Earth suddenly stopped spinning?

4:30

What if NASCAR had no rules?

3:06

What would a magnitude 15 earthquake be like?

3:28

What if we aimed the Hubble Telescope at Earth?