From a scientist's perspective, to understand everything that you need to know about human beings, you only have to tinker with all the mechanical parts of genes and the brain until there are no more secrets left. ↗
Prejudices are so to speak the mechanical instincts of men: through their prejudices they do without any effort many things they would find too difficult to think through to the point of resolving to do them. ↗
It's very easy to make insects move. Because they do move mechanically without the rippling of flesh as you mentioned. They move more like real tinker toys and you can make models of them quite easily. ↗
There are a number of mechanical devices which increase sexual arousal, particularly in women. Chief among these is the Mercedes-Benz 380SL convertible. ↗
A committee is organic rather than mechanical in its nature: it is not a structure but a plant. It takes root and grows, it flowers, wilts, and dies, scattering the seed from which other committees will bloom in their turn. ↗
He believes in romance. He isn't merely going through the mechanical movements of a man in an exciting situation. He is, vitally and positively squeezing the last drop of delight from living the best life he knows in the best way he can. ↗