Greed is good. War is inevitable. Whether in political theory or popular culture, human nature is often portrayed as selfish and power hungry. UC Berkeley psychologist Dacher Keltner challenges this notion... continue reading
posted by enoch 9 years 4 months 1 week ago • 2,027 views • 4:37Videos (49) | Sift Talk (0) | Blogs (0) | Comments (1000) |
Do you believe? YouTube: Happy Holidays! Ever wonder how Santa could possibly manage to deliver all those presents in a single night? Or what gives red-nosed reindeer the ability to fly? And why do... continue reading
posted by PlayhousePals 9 years 4 months 1 week ago • 85 views • 5:56Neatorama: DIY fanatics like myself consider Adam Savage (of Mythbusters fame) to be one of the gods of DIY. The man can build really cool stuff out of a pile of random stuff, and his diverse skillset,... continue reading
posted by Zawash 9 years 11 months 1 week ago • 255 views • 43:41Building the Machine introduces the public to the Common Core States Standards Initiative (CCSSI) and its effects on our children’s education. The documentary compiles interviews from leading educational... continue reading
posted by Joe Motion (lurgee) 1 decade 1 month ago • 184 views • 39:09Uhhh, to hell with the grocer's crap.... 1,000% more productive than conventional gardening & farming. The most robust, most scalable Aquaponics system in the world is the Portable Farms™ Aquaponics... continue reading
posted by chingalera 1 decade 8 months 2 weeks ago • 96 views • 6:31From YT: How does a transistor work? Our lives depend on this device. When I mentioned to people that I was doing a video on transistors, they would say "as in a transistor radio?" Yes! That's exactly... continue reading
posted by mxxcon 1 decade 9 months 2 weeks ago • 55 views • 6:00Please excuse any mistakes in the translation. Neither of the languages is my native one. :) "In China you don't have letters when writing. Instead you use characters, and each character is a word.... continue reading
posted by WaterDweller 1 decade 9 months 3 weeks ago • 173 views • 2:00They use Thermite to form the weld because standard welding does not give 100% weld penetration. If you listen carefully, you can hear the ping sound when the rails fully join.
posted by Mordhaus 1 decade 11 months 1 week ago • 1,623 views • 3:49What has happened to us? Despite the most advanced medical technology in the world, we are sicker than ever by nearly every measure. Two out of every three of us are overweight. Cases of diabetes are... continue reading
posted by eric3579 1 decade 11 months 1 week ago • 599 views • 2:12