IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is a model of an early design ...

That fresh air is squeezed into a small pocket in the center of the cylinder as both pistons come together, where finally diesel fuel is directly injected, igniting the mixture and creating the power ...

Once upon a time, the steam engine reigned supreme -- first in trains and heavy tractors, as you well know, but eventually in cars as well. It's quite hard to fathom today, but at the turn of the 20th ...