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The 28BYJ-48, accompanied by a ULN2003 driver, is one of the most popular stepper motors among hobbyists. A microcontroller or stepper motor controller can be used to activate the drive transistors in the right order, and this ease of operation makes unipolar motors popular with hobbyists; they are probably the cheapest way to get precise ...
Strowger, an undertaker, was motivated to invent an automatic telephone exchange after becoming convinced that the manual telephone exchange operators were deliberately interfering with his calls, leading to loss of business.
Shay Motors Corporation was an automobile company founded by Harry J. Shay in February 1978 as the Model A & Model T Motor Car Reproduction Corporation. [1] Harry Shay arranged with Ford Motor Company to build a limited run, modern-day reproduction of the Ford Model A Roadster, with a rumble seat, that was to be sold through the network of Ford Automobile Dealers and built in Battle Creek ...
The Star 48 is the largest of a family of solid rocket motors used by many space propulsion and launch vehicle stages, almost exclusively as an upper stage. It was developed primarily by Thiokol Propulsion and after several mergers, is manufactured by Northrop Grumman ’s Space Systems division.