jan 11, 1891 - Nikola Tesla Alternating current + tesla coil

Description:

Nikola Tesla was an engineer and scientist known for designing the alternating-current (AC) electric system and the tesla coil. AC is used to deliver energy to houses, office buildings, restaurants, etc. The tesla coil is used in radios to this day.

https://learn.sparkfun.com/tutorials/alternating-current-ac-vs-direct-current-dc/all

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