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Creation Of Light Bulbs
In 1879, Thomas Edison created the first public demonstrated light bulb. Light Bulbs were invented to give off light. (Thomas Edison's sketch of the first light bulb)
https://dp.la/primary-source-sets/electrifying-america/sources/719 -
Blue - Green Light
Peter Cooper Hewitt created a blue- green light. Using a way around electric current he was able to make the bulb with mercury Vapor. -
The first addition to the lightbulb
In 1904 European inventors came up with the idea of using tungsten filament. This addition helped the light bulb last longer and it made it much more brighter. -
How Gas entered the occasion
In 1913, Irving Langmuir inserted gas into light bulbs. Langmuir used a gas like nitrogen in the bulb which doubled its efficiency. -
Late 1920s -Early 1930s
European Researches were experimenting with a neon tubes that were coated with Phosphors. Phosphorus is a material that absorbs light and turns it into light that is useful such as white light. -
CFL Lightbulb
In 1976 Edward Hammer discovered how to bend the fluorescent tube into a spiral shape. It was later created into the first Compact Fluorescent Light (CFL).
