IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Edward Hebern of California designed ...

Six different sizes and types of rotors were die cast using pure, highconductivity copper. Tests showed a 1.2 to 1.7 % improvement in efficiency. When it comes to energy efficiency, every little bit ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. As an industrial salesman, Ken Blaisdell found himself looking for ...

The American inventor Edward Hebern (1869-1952) designed a series of machines for encrypting messages. The Smithsonian collections include a few of these as part of accession 1991.0190. Like many ...

An ac induction rotor starts as a stack of steel plates stamped with slots. Either molten aluminum is injected into the slots and flowed over the ends, An ac induction rotor starts as a stack of steel ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Fifty feet into the April sky above Eglin, Florida, the drone ...

This set of lettered cogs doesn’t appear to be the most exciting of discoveries. It turns out, however, that they belong to a Second World War Enigma coding machine and have only just been discovered ...

Garrett Motion has been granted a patent for a rotor design in a fluid machine. The rotor includes a wheel with blades and a unique balancing mark within the inter-blade area. The mark is elongate, ...

Renault has been granted a patent for a wound rotor design for electric machines. The rotor includes a shaft with a slipring, winding wire, and n wound poles wound in ascending order around the main ...