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the Infrared light
Infrared light was discovered in 1800 -
who invented the first electric light
Humphry Davy -
when the first electric light was made
In 1802, Humphry Davy invented the first electric light. -
how many tries it took to create the light bulb
it took 1,000 tries for the light bulb to successfully work -
when the longer lasting lightbulb created
In 1878, Swan developed a longer lasting light bulb using a treated cotton thread that also removed the problem of early bulb blackening. -
light bulb first made
thomas edison invents the light bulb -
how the light bulb was made
, he filed for a U.S. patent for an electric lamp using “a carbon filament or strip coiled and connected … to platina contact wires”. The filament was made from a piece of carbonized thread
