When your steam engine build requires multiple microscopes, including those of the scanning electron variety, you know you’re building something really, really tiny. All of the usual tiny ...

The $29.99 all-metal desktop Stirling engine kit is one of the simplest. It can be assembled in 15 minutes and is recommended for ages 14 and up. Also for $29.99 is the Exploring Kid Steam Engine Kit.

1850 that used rotating valves and improved steam engine efficiency dramatically for the time. This build is an impressive recreation of the original machine, and can even run at extremely slow ...

In 1888, Best saw a Remington 30-horsepower steam traction engine tractor demonstrated and subsequently purchased the rights to build it in California and market it on the west coast. He saw the ...