From YT: 2014Footage of the rare event when the Space Station crosses the face of the Moon. The station flies at a speed of 30000km/h, meaning it takes about half a second to traverse the Lunar face.... continue reading
posted by Nephelimdream 6 years 5 months 2 weeks ago • 734 views • 1:12Videos (42) | Sift Talk (0) | Blogs (0) | Comments (1000) |
I built a natural draft furnace to test ideas about how hot a furnace could get without the use of bellows. Natural draft is the flow of air through a furnace due to rising hot air. The hot gasses in the... continue reading
posted by Mordhaus 6 years 6 months 3 weeks ago • 454 views • 5:46There’s a saying in the sea, 'If it’s a cone, leave it alone'. Although they look pretty harmless cone nails are pretty deadly. They're a chemical making factory that travels around an a giant sticky... continue reading
posted by Mordhaus 6 years 7 months ago • 790 views • 3:48(H/T @eric3579)
posted by Aard Vark (oritteropo) 6 years 7 months 2 weeks ago • 1,765 views • 5:22YouTube description: From bee sting to cobra bites, we measure the deadliest substance known to mankind and see how much it takes to kill a person. Everything from the top 10 deadliest substance, most... continue reading
posted by Aard Vark (oritteropo) 6 years 11 months ago • 2,401 views • 3:24YouTube description: The average American consumes more than 3,600 calories daily – a 24% increase from 1961, when the average was just 2,880 calories. Americans haven't increased their consumption... continue reading
posted by Aard Vark (oritteropo) 6 years 11 months ago • 697 views • 1:37Published on Dec 27, 2016 This is the story of how a tiny, magical creature was transformed into a cultural phenomenon by inventor, marketing genius and complicated eccentric Harold von Braunhut. Full... continue reading
posted by bobknight33 6 years 11 months 1 week ago • 1,442 views • 16:47I built a water powered hammer called a “Monjolo”. I started by making a water spout from half a hollow log to direct water from the creek. This was set up in the creek and water flowed through it.... continue reading
posted by Joe Motion (lurgee) 7 years 3 weeks ago • 1,216 views • 8:51I built this pottery kiln and some pottery from termite mound clay to test an alternative clay source to my usual one from the creek bank. I started by making a large grate from ordinary clay. It was just... continue reading
posted by Mordhaus 7 years 1 month 4 weeks ago • 419 views • 11:27In this video I build a garden to grow Cassava and yams, two staple food crops. Cassava is a shrub that develops large edible roots. Yams are a climbing vine that produce large, edible underground bulbs... continue reading
posted by Mordhaus 7 years 2 months 3 weeks ago • 99 views • 6:27Chop up 2 pounds of potatoes (or one pound, then halve the dressing) Toss with olive oil salt and pepper pepper pepper Bake at 400 30-45 minutes, wrastle' once or twice Dressing: 1/2 cup walnut oil ... continue reading
posted by Mordhaus 7 years 3 months 3 weeks ago • 233 views • 3:48YouTube description: 1 tablespoon of olive oil destroys half an acre of waves on this lake. What The Physics?! (via digg, H/T @eric3579)... continue reading
posted by Aard Vark (oritteropo) 7 years 5 months 1 week ago • 618 views • 3:55for Workers, Employers, and Pretty Much Everybody YouTube: Maybe the person working near you, the one who dragged himself to work and is now coughing and sneezing, couldn’t afford to stay home. Each... continue reading
posted by PlayhousePals 7 years 5 months 2 weeks ago • 521 views • 5:25YouTube description: Bill reveals the stunning engineering underlying the design of a diaper. He describes the five layers of a diaper, including the superabsorbent polymer in the diaper's core. He... continue reading
posted by Aard Vark (oritteropo) 7 years 11 months 1 week ago • 337 views • 6:34YouTube: Eyes have been around for a long time, like... half a billion years or so... and in that time, animals have evolved lots of crazy and amazing ways to observe the world around them!
posted by PlayhousePals 8 years 1 month 1 week ago • 403 views • 8:42I made this bow and arrow using only primitive tools and materials.The bow is 1.25 m (55 inches) long and shoots 60 cm (2 feet) long arrows. I don't know the draw weight - safe to say greater than 15 kg... continue reading
posted by Mordhaus 8 years 1 month 3 weeks ago • 621 views • 5:54500ish were made and around half were sold outside the US before the company went under. It isn't mentioned in the video, but the chambers were specially engineered with a taper ream so that smaller cartridge... continue reading
posted by Mordhaus 8 years 2 months 2 weeks ago • 710 views • 5:15"Ants don’t eat leaves. They use them to grow white tufts of nutritious fungus to feed their offspring. Their success as farmers has made leafcutter ants into fungus tycoons, complete with their own... continue reading
posted by ant 8 years 11 months 1 week ago • 345 views • 3:31Simulated tornado being generated by a supercomputer (Blue Waters) with 20,000 processing cores. I need a dictionary to figure out half of the terms used in the talk, but the simulations are stunning.
posted by Ashenkase 9 years 6 months 2 weeks ago • 89 views • 16:43