Funny, I was expecting molecular level gears. Functional proteins can be considered as tiny mechanical devices; muscle movement occurs because of the actions of countless tiny engines (called actin) ratcheting their way along countless tiny fibers (called myosin).
At the molecular level, all living things are nothing but masses of molecule sized machines.
yep. And they are more complex than anything that any man has even conceived of designing. Every new discovery shows a new level of extreme complexity. There are machines that spontaneously build themselves to perform a function then break back down into atoms so they can move to a different area of the cell to reassemble themselves in order to perform the same function. They continuously do this whenever and wherever needed. The chances of inert elements combining themselves into amino acids and then randomly combining in order to create a single folding protein is statistically zero.
ATP synthasr appears to work as a machine..also flagella in certain cerain microscopic organisms behave as a motor.