This Clock Made Power Grids Possible
Cars That Think
FEBRUARY 29, 2024
On 23 October 1916, an engineer named Henry E. Warren quietly revolutionized power transmission by installing an electric clock in the L Street generating station of Boston’s Edison Electric Illuminating Co. How Warren’s clocks regulated grid frequency Henry E. Until the late 1940s, station clocks from the Warren Telechron Co.
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