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Light History



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70,000 years ago....

Man discovered fire accidently by rubbing stones

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500 BC

Romans
Beeswax candles, wax candles etc...

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1853

Lgnacy Lukasiewicz
Kerosene Fuel Lighting

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1879

Thomas Edison
Incandescent Lights
10%
  Light
90%
  Heat
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1903

Peter Cooper Hewitt
Fluroscent lamps
40%
  Light
60%
  Heat
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1962

Nick Holonyak Jr.
First LED
80%
  Light
20%
  Heat