When your steam engine build requires multiple microscopes ... which prompted a dive down the rabbit hole of micro-machining and a switch to high-speed steel tooling. It all worked in the end ...

This means the quality of the model is only as good as the original owner’s machining and fabrication skills. [Keith Appleton] is something of a steam engine expert. In this pair of videos ...

The Kew Bridge Steam Museum in London has the largest working Cornish Steam Engine in the World. It was actually built for the site to pump water to West London and started work on the 30th May 1846.

Heron, the great inventor of Alexandria, described in detail what is thought to be the first working steam engine. He called it an aeolipile, or "wind ball". His design was a sealed caldron of water ...