"How can it be summer in North America and winter in Australia at the same time?! ..."

posted by ant 2 years 7 months ago • 51 views • 5:39

The Millennium Tower at 301 Mission Street in San Francisco is famously tilting and sinking into the ground. How does geology affect the design of skyscraper foundations, and what is being done to fix... continue reading

posted by eric3579 3 years 3 months 3 weeks ago • 99 views • 13:32

From Youtube, "Torsional eye movement, known as cycloversion and cyclovergence have a fascinating evolutionary history via our evolutionary ancestors that had eyes on the sides of their heads. Your eyes... continue reading

posted by w1ndex 4 years 5 months 1 week ago • 49 views • 12:51

If you're in Canada, you need good winter boots. But how do you know whether they're actually safe, or whether you'll fall over the first time you step on ice? This is WinterLab, part of the Challenging... continue reading

posted by Mordhaus 6 years 9 months ago • 36 views

I 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 10 months 2 weeks ago • 1,217 views • 8:51