"Urushiol oil in poison sumac, poison oak, and poison ivy may produce a severe skin rash. Timely urushiol removal can prevent poison ivy skin reaction. The key is to understand how poison ivy works... ... continue reading
posted by ant 7 years 9 months 2 weeks ago • 1,239 views • 5:14Videos (83) | Sift Talk (0) | Blogs (0) | Comments (1000) |
YouTube description: in this video i will try to explain how a bladeless fan works. is a bit difficult do it in english. if you can do it better please use comment box below. the space between the... continue reading
posted by Aard Vark (oritteropo) 7 years 9 months 3 weeks ago • 1,002 views • 4:53I built this grass hut up on a ridge. It's roughly parallel with the tiled hut and wattle and daub hut that are a couple of hundred meters away down in a valley. I built it on a ridge to get away from... continue reading
posted by Mordhaus 7 years 10 months ago • 567 views • 4:17YouTube description: View full lesson: http://ed.ted.com/lessons/how-transistors-work-gokul-j-krishnan Modern computers are revolutionizing our lives, performing tasks unimaginable only decades ago.... continue reading
posted by Aard Vark (oritteropo) 7 years 11 months ago • 1,489 views • 4:54YT: In a small town with an unfortunate name, let's talk about filtering and innuendo. And use it as an excuse for as many visual jokes as possible.
posted by Fantomas 7 years 11 months ago • 51 views • 3:38The Most Dangerous Stretch of Water in the World: The Strid at Bolton Abbey, Yorkshire I know, I know, it's a clickbait title^. But I stand by it, because the water is so deceptive, and so pretty, and... continue reading
posted by eric3579 7 years 11 months 4 weeks ago • 3,374 views • 2:17I made a rough type of textile from bark fibre. This is the same tree I use for making cordage though I don’t know its name. It has been raining a lot here lately (the video also shows how well the hut... continue reading
posted by Mordhaus 8 years ago • 639 views • 4:48Published on Mar 11, 2012 Sometimes a single unlikely idea can have massive impact across the world. Sir Harold Evans, the author of They Made America, describes how frustration drove Malcom McLean,... continue reading
posted by bobknight33 8 years ago • 475 views • 4:47YouTube description: I made a batch of charcoal using the mound method then stored it in baskets for later use. Charcoal is a fuel that burns hotter than the wood it's made from. This is because the... continue reading
posted by Aard Vark (oritteropo) 8 years 2 months 2 weeks ago • 1,003 views • 5:31To quote her own presentation: - Our fears about debt and deficits are driven by an outdated gold standard ideology - Money is not a finite "thing" - Deficits can be too big or too small - The goal... continue reading
posted by radx 8 years 2 months 2 weeks ago • 278 views • 1:18:38In the middle of the Mojave desert lies California City, the largest city never built. It is now a vast network of roads carved into the sand for miles and miles with nothing but tumbleweeds and cacti... continue reading
posted by Mordhaus 8 years 4 months 4 weeks ago • 1,098 views • 4:55This talk was given at a local TEDx event, produced independently of the TED Conferences. Building strong children is easier than repairing broken adults. Why allow something to break only to try to fix... continue reading
posted by LukeForsyth455 8 years 6 months ago • 24 views • 17:43YouTube Description: Jellyfish don’t have a heart, or blood, or even a brain. They’ve survived five mass extinctions. And you can find them in every ocean, from pole to pole. What’s their secret?... continue reading
posted by Aard Vark (oritteropo) 8 years 6 months 2 weeks ago • 170 views • 2:56YT-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 8 years 8 months ago • 1,709 views • 14:09Cultivate random acquaintances.
posted by PlayhousePals 8 years 8 months 1 week ago • 369 views • 9:23This seems way more useful than the finger-counting method I was taught.
posted by nock 8 years 9 months 1 week ago • 306 views • 1:10Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling domination on one small beach, discover how game theory and the Nash Equilibrium... continue reading
posted by PlayhousePals 9 years 3 months ago • 885 views • 4:07He's on to something here. I forgave the Sifters who were certain that I was a sock puppet. And boy howdy, I felt better. Full disclosure, a smidgen of valium was instrumental in helping me achieve nirvana... continue reading
posted by PlayhousePals 9 years 3 months 2 weeks ago • 163 views • 4:13This is taken from a radio show called Science Friday. This is about a couple who were inspired to design and build their own tiny house with mobility because they were tired of paying 1200 monthly in... continue reading
posted by Issykitty 1 decade 9 months 3 weeks ago • 5,391 views • 4:37Please 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 • 2:00