Catapult
Posted on December 3rd, 2011 by yowch
YowCH built a catapult when he was about 10. Using similar materials, Esther and David helped build another one:
The lump of Blutack flies about 1.0m, and given the catapult is about 10cm high, the range is about 10x the height. A real catapult would be about 10ft high, meaning this will throw a decent stone about 150ft. With higher rope tension and a stronger frame (glued instead of lashed with ropes), the range can effectively be 3 times more!
Your comments?