In the Aljarafe region of Spain, there's PS10 and PS20: concentrated solar power towers. They're huge towers surrounded by heliostats: movable mirrors that track the sun and reflect its light onto a giant... continue reading

posted by Mordhaus 8 years 3 weeks ago • 441 views • 2:42

YouTube Description: Half the size and twice the power of a Volkswagen! John Peterson, president of America’s Panhard club, has a lot to say about Jay's 60-hp PL 17.... continue reading

posted by Joe Motion (lurgee) 8 years 1 month 2 weeks ago • 30 views • 25:06

YouTube description: Nowadays, it's a universally accepted theory that the universe began 13.8 billion years ago with the Big Bang. But did you know that two radio astronomers unintentionally stumbled... continue reading

posted by Aard Vark (oritteropo) 8 years 1 month 3 weeks ago • 212 views • 3:10

Nooooooooooooooooooo! YouTube: If you watch Healthcare Triage, it won’t come as news fat and cholesterol aren’t likely as bad as everyone says. And sugar may be worse. What is news this week is... continue reading

posted by PlayhousePals 8 years 2 months ago • 721 views • 4:26

I built a tiled roof shed to provide a fire and rain proof shelter for working on projects during wet weather and for storing firewood. The shed houses the very kiln used to fire its own tiles. I cut... continue reading

posted by eric3579 8 years 2 months 1 week ago • 2,146 views • 11:32

"... In this episode I take a look at how ROM cartridge games worked, what their advantages and disadvantages were."

posted by ant 8 years 2 months 1 week ago • 149 views • 14:09

Fire-arrows - did archers really use them in battles?

posted by Mordhaus 8 years 2 months 3 weeks ago • 216 views • 11:28

YouTube description: So...why does all the writing in comic books look like that? Vox's Phil Edwards looked into it and found an aesthetic shaped by comics culture, technology, and really cheap paper. ... continue reading

posted by Aard Vark (oritteropo) 8 years 2 months 2 weeks ago • 555 views • 8:33

From Vimeo: With the release of Kubo and the Two Strings, it is a perfect moment to go back in time and see the evolution of stop-motion animation throughout the years. The films included are: - The... continue reading

posted by atara 8 years 2 months 3 weeks ago • 436 views • 3:03

YouTube description: It’s probably the most well known peacetime battle between the USA and the Soviet Union, in both technological and ideological terms of the 20th century. Although the USA won... continue reading

posted by Aard Vark (oritteropo) 8 years 3 months ago • 812 views • 14:23

YouTube description: A good anvil is the mother of all shop tools. Here is tour of my small collection, and a few things I have learned regarding anvils over the years. Thank you for watching. ... continue reading

posted by Aard Vark (oritteropo) 8 years 3 months 3 weeks ago • 699 views • 7:58

YouTube description: On La Gomera, a small island in Spain’s Canary Islands, the last speakers of a language without words reside. "El Silbo," a whistled communication used in rural and isolated areas,... continue reading

posted by Aard Vark (oritteropo) 8 years 3 months 4 weeks ago • 197 views • 3:53

YouTube description: Dara O Briain takes us on a whistle stop tour of the history of Physics and the physicists that defied convention and dared to dream of understanding the world better. (via digg)... continue reading

posted by Aard Vark (oritteropo) 8 years 3 months 3 weeks ago • 522 views • 3:23

YouTube description: View full lesson: http://ed.ted.com/lessons/why-the-metric-system-matters-matt-anticole For the majority of recorded human history, units like the weight of a grain or the length... continue reading

posted by Aard Vark (oritteropo) 8 years 4 months ago • 341 views • 5:08

Atlas Obscura: in 1943, the Army Corps of Engineers began construction of the largest scale model ever built. They modeled all 1.25 million square miles of the Mississippi River and surrounding areas... continue reading

posted by oblio70 8 years 4 months ago • 325 views • 3:17

Wood go boom.

posted by Nephelimdream 8 years 4 months 1 week ago • 1,751 views • 58 secs

YouTube description: The software running Apollo’s guidance computers was literally woven by hand by "little old ladies." Hosted by: Hank Green

posted by Aard Vark (oritteropo) 8 years 4 months 1 week ago • 75 views • 4:07

"Around the world, frogs are declining at an alarming rate due to threats like pollution, disease and climate change. Frogs bridge the gap between water and land habitats, making them the first indicators... continue reading

posted by ant 8 years 4 months 1 week ago • 264 views • 11:51