What would happen if the Sun went dark?
xkcd's What If?
What would happen if the Sun went dark?
1:21
What if you kept digging downward?
xkcd's What If?
What if you kept digging downward?
2:53
Which path would the three wise men have walked?
xkcd's What If?
Which path would the three wise men have walked?
1:26
Where would the three wise men go if they followed a planet?
xkcd's What If?
Where would the three wise men go if they followed a planet?
0:55
What if you floated upwards 1 ft every second?
xkcd's What If?
What if you floated upwards 1 ft every second?
2:53
How many elevators would you need in a billion-story building?
xkcd's What If?
How many elevators would you need in a billion-story building?
1:08
What if we built a billion-story building?
xkcd's What If?
What if we built a billion-story building?
1:49
What if you made a jetpack using rifles?
xkcd's What If?
What if you made a jetpack using rifles?
4:38
What if you teleported to the Sun?
xkcd's What If?
What if you teleported to the Sun?
1:42
What if you printed all of Wikipedia?
xkcd's What If?
What if you printed all of Wikipedia?
1:26
How long would you survive with no DNA?
xkcd's What If?
How long would you survive with no DNA?
3:16
What if we teleported the oceans to Mars?
xkcd's What If?
What if we teleported the oceans to Mars?
1:47
What if you drained the oceans?
xkcd's What If?
What if you drained the oceans?
1:50
Can you power your computer by typing?
xkcd's What If?
Can you power your computer by typing?
2:48
What if everyone on Earth was in the same place and jumped at the same time?
xkcd's What If?
What if everyone on Earth was in the same place and jumped at the same time?
2:13
Could you swim in a spent nuclear fuel pool?
xkcd's What If?
Could you swim in a spent nuclear fuel pool?
1:37
What if ALL the sun’s power was focused in one place?
xkcd's What If?
What if ALL the sun’s power was focused in one place?
2:51
Could you use a laser as an umbrella?
xkcd's What If?
Could you use a laser as an umbrella?
1:10
What if you tried to hit a baseball pitched at 90% the speed of light?
xkcd's What If?
What if you tried to hit a baseball pitched at 90% the speed of light?
1:54
Can you drive west to lengthen the sunset?
xkcd's What If?
Can you drive west to lengthen the sunset?
2:46
What would happen to the Earth if it suddenly stopped spinning?
xkcd's What If?
What would happen to the Earth if it suddenly stopped spinning?
1:06
What would happen to the population if the Earth suddenly stopped spinning?
xkcd's What If?
What would happen to the population if the Earth suddenly stopped spinning?
1:16
Could we survive eating only humans?
xkcd's What If?
Could we survive eating only humans?
2:39
How detailed would the Hubbles images be if it looked at Earth?
xkcd's What If?
How detailed would the Hubbles images be if it looked at Earth?
1:12
Could the Hubble take a photo of you?
xkcd's What If?
Could the Hubble take a photo of you?
0:45
What if the Moon were made entirely of electrons?
xkcd's What If?
What if the Moon were made entirely of electrons?
2:48
How fast could a vehicle go around a track - but the racer does not have to survive.
xkcd's What If?
How fast could a vehicle go around a track - but the racer does not have to survive.
1:33
How fast could a human accellerate (while staying alive)?
xkcd's What If?
How fast could a human accellerate (while staying alive)?
1:24
What if you had a mole of moles?
xkcd's What If?
What if you had a mole of moles?
4:35
Petition to send a swimming pool to the moon!
xkcd's What If?
Petition to send a swimming pool to the moon!
0:45
Circumference pop quiz!
xkcd's What If?
Circumference pop quiz!
0:21
Could this be the last surviving human light source?
xkcd's What If?
Could this be the last surviving human light source?
0:26
Why Space Is Actually Warm!
xkcd's What If?
Why Space Is Actually Warm!
1:14
Could We Harvest Power From Lightning?
xkcd's What If?
Could We Harvest Power From Lightning?
0:49
What if the moon turned into a black hole?
xkcd's What If?
What if the moon turned into a black hole?
3:41
Is there such a thing as a magnitude 0 earthquake?
xkcd's What If?
Is there such a thing as a magnitude 0 earthquake?
1:07
How high could the magnitude of Earthquakes go?
xkcd's What If?
How high could the magnitude of Earthquakes go?
1:06
What if you funneled Niagara Falls through a straw?
xkcd's What If?
What if you funneled Niagara Falls through a straw?
3:37
What if you used a flamethrower as a snowblower?
xkcd's What If?
What if you used a flamethrower as a snowblower?
2:53
What if you literally had all the money in the world?
xkcd's What If?
What if you literally had all the money in the world?
2:58
What if the sun suddenly went out?
xkcd's What If?
What if the sun suddenly went out?
3:12
What if the Earth rotated 90 degrees?
xkcd's What If?
What if the Earth rotated 90 degrees?
6:47
What if the wise men kept walking after Jesus’s birth?
xkcd's What If?
What if the wise men kept walking after Jesus’s birth?
2:46
What if you built a billion-story building?
xkcd's What If?
What if you built a billion-story building?
3:56
What if we put a pool on the moon?
xkcd's What If?
What if we put a pool on the moon?
2:53
But what if we tried MORE power?
xkcd's What If?
But what if we tried MORE power?
4:02
What if everyone pointed a laser at the moon?
xkcd's What If?
What if everyone pointed a laser at the moon?
5:37
What if Earth grew 1cm every second?
xkcd's What If?
What if Earth grew 1cm every second?
5:16
What if a glass of water were LITERALLY half empty?
xkcd's What If?
What if a glass of water were LITERALLY half empty?
4:20
Could you survive a nanosecond on the Sun?
xkcd's What If?
Could you survive a nanosecond on the Sun?
3:29
What if we teleported the oceans to Mars?
xkcd's What If?
What if we teleported the oceans to Mars?
4:28
What if you tried to print Wikipedia?
xkcd's What If?
What if you tried to print Wikipedia?
2:57
What if you drained the oceans?
xkcd's What If?
What if you drained the oceans?
3:30
If all humans died, when would the last light go out?
xkcd's What If?
If all humans died, when would the last light go out?
5:04
What if all the lightning on Earth struck the same place at once?
xkcd's What If?
What if all the lightning on Earth struck the same place at once?
3:47
What if everyone jumped at once?
xkcd's What If?
What if everyone jumped at once?
3:52
What if you swam in a nuclear storage pool?
xkcd's What If?
What if you swam in a nuclear storage pool?
3:58
Would a Submarine Work as a Spaceship?
xkcd's What If?
Would a Submarine Work as a Spaceship?
4:23
Could you make an umbrella out of lasers?
xkcd's What If?
Could you make an umbrella out of lasers?
3:06
What if you threw a baseball at nearly light speed?
xkcd's What If?
What if you threw a baseball at nearly light speed?
3:15
What if Earth suddenly stopped spinning?
xkcd's What If?
What if Earth suddenly stopped spinning?
4:35
What if NASCAR had no rules?
xkcd's What If?
What if NASCAR had no rules?
4:30
What would a magnitude 15 earthquake be like?
xkcd's What If?
What would a magnitude 15 earthquake be like?
3:06
What if we aimed the Hubble Telescope at Earth?
xkcd's What If?
What if we aimed the Hubble Telescope at Earth?
3:28