-
The incandescent lightbulb was the first lightbulb ever made. The incandescent lightbulb was invented by Thomas Edison.
-
The fluorescent lightbulb was the second lightbulb created invented by Cooper Hewitt in 1903. It works by ionising water vapour in a glass tube. This makes electrons in the gas emit photons at UV frequencies.
-
In 1907, a British experimented found that when a potential of ten volts was applied to a carborundum crystal it would emit a yellow light.
-
Nick Holonyak Jr developed the first light emitting diode.
