Home machinists can often find great deals on used industrial equipment, and many a South Bend lathe or Bridgeport milling machine has followed someone home. Then comes the moment to plug it in, and ...

American manufacturers are importing European and Asian industrial equipment at an accelerating pace. The problem: that equipment is designed for 50Hz power grids, while the US operates at 60Hz.

Home machinists can often find great deals on used industrial equipment, and many a South Bend lathe or Bridgeport milling machine has followed someone home. Then comes the moment to plug it in, and ...

A small rotary converter for changing 3-phase alternating current to 18 volts direct current at 10 amps. Specimen is in a closed steel case consisting of a circular cylinder connected to a hyperbolic ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A rotary converter with direct ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...