Edward Rogers and the invention of the A.C. vacuum tube!
OH CANADA! OUR HOME AND INVENTIVE LAND! por Professor Mark Rector
Notas del episodio
This is the amazing story of a very brilliant young man who not only explores the early world of radio communications, he goes on to invent the A.C. vacuum tube which allowed us all to have a radio in the front room and gather around to listen to Saturday night hockey games!
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Canadian historyTechnologyHistoryInventionsInventorsHockeymorse codeFoster Hewittelectronicsvacuum tube
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