Group items matching

in title, tags, annotations or url

Chemical extraction of gold from microprocessor electronics.

Some very simple counter-weight trebuchet theory.

Building a trebuchet from scratch and finding the best proportions, weights, angles etc by trial and error certainly works ..well, that's how the Grey Co's first machines were done... but if you could model the rock-throwing beasts mathematically then think of the work and possibly wasted effort you could save.