Michael Faraday Discovers Electromagnetic Induction
Faraday discovered electromagnetic induction on October 17, 1831, the principle behind the electric generator and the transformer.
Edison Tests the Practical Light Bulb
Thomas Edison tested the first practical incandescent light bulb on October 21, 1879. The carbon filament burned for over thirteen hours.
A Filament That Would Not Burn Out
Edison lit a carbon filament lamp for 13 and a half hours on October 21, 1879, making electric lighting practical.
The World's First Hydroelectric Power Station Starts Operating
On September 30, 1882, the Vulcan Street Plant in Appleton, Wisconsin, became the world's first hydroelectric power station.
Thomas Edison Dies at 84
Thomas Edison died on October 18, 1931, aged 84, holding 1,093 American patents.