the portable engine of Hoard Bradford, of "Water-town, N. Y., and is something like the one of CharlesMann,ofTroy, N.T. Portable steam engines, we know, interest a large class of our readers ...

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 ...

These early steam engines produced a vacuum to ... idea in 1765 to include a separate condenser making the engine more powerful, portable and efficient. This clip is from the series The Genius ...