Read on for some cool info about the lightbulbs
1802
Stay in the dark no longer. Humphry Davy, an English chemist and inventor, produced the world’s first electric lamp by connecting charged piles to charcoal electrodes. It was known as an electric arc lamp, but it wasn’t a very practical source of lighting. It burned out really quickly and was actually much too bright.
1878
Lots of inventors were using their limited knowledge to produce a light bulb that would actually be useful. And finally, in 1878, after lots of failed experiments and trials, Thomas Alva Edison nailed it! And he learned that a carbonized bamboo filament would light and stay lit for 1,200 hours. And so, his company was born: The Edison Electric Light Company. Now he could start selling usable and affordable incandescent light bulbs.
1960
The invention of the LED bulb was actually an accident. Some mistakes turn out good! Nick Holonyak, an America scientist at General Electric, was trying to create a laser and somehow ended up with a red LED light. He used the concept that semi-conductors glow when an electrical current is applied to them — something that was widely known — and patented it for use as a light fixture.
Just ten percent of an incandescent light bulb’s energy produces light. The remaining 90 percent produces heat.
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