13 h 17 m, 21 jun 1885 ano - Westinghouse invents transformer for alternating current
Descrição:
George Westinghouse had over 400 patents to his name | transformer for producing high voltage alternating current | made possible the lighting of cities and operation fo electric streetcars, subways, and electrically powered machinery / appliances
Adicionado na linha do tempo:
Data:
13 h 17 m, 21 jun 1885 ano
Agora
~ 140 years ago