engine

In these images you can see how an engine is composed: there are detailed images of old and modern motors, pipe, valves and other mechanical parts. There is also the photo of a winch, a device used to lift object using cables. The first engines worked with coal, then oil became the most common fuel; today people are trying to discover new cleaner sources of energy, for instance it was made a prototype of a nitrogen car.

photo -> technology -> mechanics -> engine