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The Tesla Notes

Tesla Notes 15: Niagara, and the Fire on Fifth Avenue (1893 to 1896)

The egg that stands at Chicago, a laboratory lost to fire, shadows through forty feet, and the wheel at Niagara sending its power twenty-six miles to Buffalo.

Tesla's notebook, 1893 to 1896: why Niagara ran at 25 periods, why 11,000 volts saved the copper, and what a fire takes from an inventor and what it leaves.

Nikola Tesla November 5, 2026 25 min

#Nikola Tesla #Tesla Notes #Niagara Falls #Power Transmission #Polyphase #X-rays #History of Physics

The Tesla Notes

Tesla Notes 04: Edison, Direct Current and the Arithmetic of Copper

New York, 1884 to 1887: I work for Edison, dig ditches, and prove on paper that copper grows as the square of the distance and falls as the square of the pressure.

Tesla's New York notebook: why 110 V direct current reached about a mile, the I²R arithmetic of copper, Edison's three-wire saving, and the $50,000 story.

Nikola Tesla November 5, 2026 24 min

#Nikola Tesla #Tesla Notes #Thomas Edison #Direct current #Power transmission #Electrical engineering #History of science