YouTube description: On August 8th, 1918, Allied forces in France launched the Hundred Days Offensive, one of the first combined arms operations of the war that included hundreds of tanks, airplanes,... continue reading

posted by Aard Vark (oritteropo) 6 years 3 months 2 weeks ago • 397 views • 3:15

YouTube description: What happens when you fire a Civil War mortar at a caravan? We invited YouTuber Tom Scott to find out. The mortar used is a replica of Roaring Meg, which destroyed large parts... continue reading

posted by Aard Vark (oritteropo) 6 years 6 months 3 weeks ago • 545 views • 7:11

At the old hut site (the new one being temporarily cut off by flooding) I made lime mortar from the shells of rainforest snails by firing them in a kiln, slaking them in water, mixing them into lime putty.... continue reading

posted by Mordhaus 7 years ago • 408 views • 7:08

At the University of Salford's Energy House, all the energy use is monitored and controlled, allowing researchers to experiment with all sorts of insulation and energy-saving techniques. But how to control... continue reading

posted by Mordhaus 8 years 2 months 3 weeks ago • 104 views • 3:36