Project Gutenberg on Nostr: #OTD in 1879. Using a filament of carbonized thread, Thomas Edison tests the first ...
#OTD in 1879.
Using a filament of carbonized thread, Thomas Edison tests the first practical electric incandescent light bulb (lasting 131⁄2 hours before burning out).
https://en.wikipedia.org/wiki/Incandescent_light_bulb
U.S. patent 0,223,898 by Thomas Edison for an improved electric lamp, 27 January 1880:
https://patents.google.com/patent/US223898
Edison: His Life and Inventions by Frank Lewis Dyer and Thomas Commerford Martin at PG:
https://www.gutenberg.org/ebooks/820
#science #technology
Using a filament of carbonized thread, Thomas Edison tests the first practical electric incandescent light bulb (lasting 131⁄2 hours before burning out).
https://en.wikipedia.org/wiki/Incandescent_light_bulb
U.S. patent 0,223,898 by Thomas Edison for an improved electric lamp, 27 January 1880:
https://patents.google.com/patent/US223898
Edison: His Life and Inventions by Frank Lewis Dyer and Thomas Commerford Martin at PG:
https://www.gutenberg.org/ebooks/820
#science #technology