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
93,283 results
How quickly would the oceans drain if a circular portal 20 meters in diameter appeared at the bottom of Challenger Deep, the ...
916,244 views
5 days ago
The world's most entertaining and useless self-help guide, from the brilliant mind behind the wildly popular webcomic xkcd and ...
1,596,424 views
4 years ago
The #1 New York Times bestselling author of What If? and How To answers more of the weirdest questions you never thought to ...
1,372,791 views
1 year ago
Thanks to Randall Munroe (of XKCD, What If?, and Thing Explainer) and Houghton Mifflin Harcourt for making this video possible!
1,258,128 views
8 years ago
If every human somehow simply disappeared from the face of the earth, how long would it be before the last artificial light source ...
2,816,536 views
3 weeks ago
Henry Reich is the creator of MinutePhysics and executive producer of MinuteEarth and MinuteFood and founder of Neptune ...
2,190,942 views
3 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 ...
945,065 views
2 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?
1,127,424 views
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 ...
1,385,992 views
4 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 ...
969,615 views
If all the lightning that occurs worldwide on any given day all struck the same place at once, what would happen to that place?
1,030,305 views
1 month ago
REFERENCES Page with TONS of info about water and ice https://water.lsbu.ac.uk/water/water_density.html Specifically, a graph ...
1,923,830 views
What would happen if the Earth and all terrestrial objects suddenly stopped spinning, but the atmosphere retained its velocity?
1,210,314 views
5 months ago
Since we usually hear about earthquakes with ratings somewhere between 3 and 9, a lot of people probably think of 10 as the top ...
2,664,725 views
6 months ago
If you pointed the Hubble telescope at the Earth, what could you see? Could you read over your neighbor's shoulder? Or would it ...
1,725,772 views
8,900 views
0
9,700 views
5,700 views
3,800 views
26,000 views
7,100 views
2,300 views
2,600 views
532 views
212 views
509 views
127 views
60 views
511 views
88 views
1,400 views
135 views
201 views
44 views
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 ...
1,478,031 views
Web cartoonist Randall Munroe answers simple what-if questions ("what if you hit a baseball moving at the speed of light?") using ...
1,048,525 views
10 years ago
xkcd on the best (and worst) ways to power your house with renewable energy. Our video features just a few of the many “useless ...
330,354 views
I like the lion-faced Antarctica fish swimming through the Dymaxion projection. The weird 3D-ish effect with Antarctica and ...
264,362 views
3 years ago
Animation of the xkcd comic "Elevator": http://xkcd.com/288/ Music: "CODE-COSTARICA" by Susumu Hirasawa my other xkcd ...
35,253 views
14 years ago