Light buld

light bulb

By ryheem2
  • the Infrared light

    the Infrared light

    Infrared light was discovered in 1800
  • who invented the first electric light

    who invented the first electric light

    Humphry Davy
  • when the first electric light was made

    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

    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

    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

    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