Upload date
All time
Last hour
Today
This week
This month
This year
Type
All
Video
Channel
Playlist
Movie
Duration
Short (< 4 minutes)
Medium (4-20 minutes)
Long (> 20 minutes)
Sort by
Relevance
Rating
View count
Features
HD
Subtitles/CC
Creative Commons
3D
Live
4K
360°
VR180
HDR
4,397 results
How quickly would the oceans drain if a circular portal 20 meters in diameter appeared at the bottom of Challenger Deep, the ...
802,333 views
2 days ago
If every human somehow simply disappeared from the face of the earth, how long would it be before the last artificial light source ...
2,742,309 views
3 weeks ago
What would happen if you tried to hit a baseball pitched at 90% the speed of light? Randall Munroe is the author of the New York ...
1,374,694 views
4 months ago
Henry Reich is the creator of MinutePhysics and executive producer of MinuteEarth and MinuteFood and founder of Neptune ...
2,173,779 views
3 months ago
What if I took a swim in a typical spent nuclear fuel pool? Would I need to dive to actually experience a fatal amount of radiation?
1,115,593 views
2 months ago
What would happen if everyone on earth stood as close to each other as they could, jumped, and landed on the ground all at the ...
929,382 views
Since we usually hear about earthquakes with ratings somewhere between 3 and 9, a lot of people probably think of 10 as the top ...
2,649,286 views
6 months ago
Stopping rain from falling on something with an umbrella is boring. What if you tried to stop rain with a laser that targeted and ...
961,370 views
Original Video @xkcd_whatif https://youtu.be/Jpy55EgMQgY?si=7AuxjfscR7XM6NDN.
12,295 views
1 day ago
What would happen if the Earth and all terrestrial objects suddenly stopped spinning, but the atmosphere retained its velocity?
1,199,648 views
5 months ago
If all the lightning that occurs worldwide on any given day all struck the same place at once, what would happen to that place?
1,008,019 views
1 month ago
What if you ignored all the rules of car racing and had a contest which was simply to get a human being around a track 200 times ...
1,469,471 views
If you pointed the Hubble telescope at the Earth, what could you see? Could you read over your neighbor's shoulder? Or would it ...
1,713,642 views
Original Video @xkcd_whatif https://youtu.be/JcXpCyPc2Xw?si=YS4YxDpRc9Z-hVwD.
11,092 views
6 days ago
In case you were wondering, I was referring to Stephen Strasburg for the Washington Nationals.
35,733 views
4 weeks ago
Original Video @xkcd_whatif https://youtu.be/p2M8Y0z9Rl0?si=gZi-MejFdZ3pBgGl.
14,213 views
2 weeks ago
Original Video @xkcd_whatif https://youtu.be/8fADp43wJwU?si=f9zO4kv3QFlEPF23.
25,552 views
Original Video @xkcd_whatif https://youtu.be/EsUBRd1O2dU?si=yv83BNdHdooKPlZA.
56,272 views
XKCD comic strips, but taken without the full context. Background music: https://www.youtube.com/watch?v=haWFRI9o6UY Comic ...
3,537 views
9 months ago
Original Video @xkcd_whatif https://youtu.be/fs28lEq9smw?si=RZM_HfmvGiEC3-kV Styropyro pulse laser: ...
19,588 views