There are two main types of electrical current that flow through your home: Alternating and direct. The vast majority of devices around you are powered by alternating current. By allowing electrons to ...

Patent model for Bell DC generator, 1876. Magnetized octagon steel bar 7.5" long with revolving wheel. Contact springs in center of bar. Two binding posts. See US Patent 181553, Generating Electrical ...

IN the English Electric Co.'s Journal for October, a description is given of the high-pressure D.C. dynamos it constructs for use in electrostatic precipitation plant. The Whessoe Foundry and ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. No extant maker's markings. This ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

A team of Brigham Young University student engineers this week unveiled a merry-go-round capable of turning children’s play into electricity. The students’ prototype merry-go-round uses a direct ...

Corporate rivalry was darkest during the industrial revolution. If you think that the rivalry between Facebook and Google is bad, then you should hear about Thomas Edison and George Westinghouse.