Many swimmers attempt to swim faster by modeling the technique of the fastest swimmers. Using champions as models is an archaic approach of painstakingly slow, trial ...

Close up we see pistons move up and down or side to side. Pendulums sway, the small parts of machinery move. Gears drive larger wheels. Gears within gears spin. Shafts turn some mechanism that is out ...

Bits, bytes and silicon transistors? Boy, you have it good -- back in 1953, state-of-the-art computers were made of gears, sprockets, chains and cams, and we trusted them to accurately wreck lives ...