From youtube: We think of the moon as orbiting the earth, following a spiraling trajectory as the earth itself orbits the sun. But this is wrong. Not only is the moon's orbit NOT a spiral... there's an... continue reading

posted by noims 6 months 1 week ago • 32 views • 5:30

This deepsea Octopus (or Squid) was filmed in the depths of the Gulf of Mexico by a work class ROV. At first we believed this to be a Cirrate Octopus, but now we believe it to be a Vampire Squid/Umbrella... continue reading

posted by newtboy 2 years 2 weeks ago • 75 views • 2:12

Plain old soap and water absolutely annihilate coronavirus. Read more about the coronavirus pandemic at http://vox.com/coronavirus You've been told a thousand times: wash your hands to stop the spread... continue reading

posted by eric3579 5 years 4 weeks ago • 379 views • 3:45

YouTube description: The Galton Board is a 7.5” by 4.5” desktop probability machine. This device brings to life the statistical concept of normal distribution. As you rotate the Galton Board... continue reading

posted by Aard Vark (oritteropo) 6 years 11 months 1 week ago • 811 views • 3:23

YouTube: This video is about the local and global geometry and curvature of space and spacetime, aka, is space flat? Negatively curved? Positively curved? etc.

posted by PlayhousePals 7 years 8 months 4 weeks ago • 317 views • 3:39

Comparing forward curved blades, backward curved blades and straight blades for a blower impeller.

posted by Mordhaus 8 years 3 weeks ago • 571 views • 10:32

This video makes me feel dumb.

posted by Mordhaus 8 years 2 months 3 weeks ago • 1,189 views • 25:57

YT-I built this tiled roof hut in the bush using only primitive tools and materials. The tools I used have been made in my previous videos. It should be pointed out that I do not live in the wild and that... continue reading

posted by newtboy 9 years 7 months 1 week ago • 1,711 views • 14:09

"What do the martians call them?"

posted by PlayhousePals 1 decade 4 months 3 weeks ago • 870 views • 2:57

Vi Hart goes bananas with dragons, fractals, notation and algorithms again. This time even more bananas than usual. Part II of the Dragon logarithm class. Could someone add a *related=http://videosift.com/video/Vi-Ha... continue reading

posted by Zawash 1 decade 1 year 5 months 4 weeks ago • 287 views • 9:20

YouTube Description: Beautiful Dragon Curves, Fractals and Jurassic Park. Featuring Rob Eastaway.

posted by Zifnab 1 decade 2 years 2 months 1 week ago • 257 views • 7:04

YouTube Description: Anti-parabola propoganda, plus musing on math class, cardioids, connect the dots, envelopes of lines, even a bit of origami.Extra points to a certain Andrea whose line-enveloped... continue reading

posted by FlowersInHisHair 1 decade 2 years 7 months 3 weeks ago • 1,640 views • 7:47