I 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 6 years 2 months 4 weeks ago • 619 views • 5:54

500ish 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 6 years 3 months 3 weeks ago • 708 views • 5:15

Physicist Richard Feynman explains how a train stays on the tracks... From BBC TV 'Fun to Imagine' (1983) -YT

posted by cybrbeast 1 decade 3 years ago • 17,319 views • 2:27