The invention of the light bulb
The invention of the light bulb
In history it was usual, that people used oil lamps or candles as a light. They used it to read, write, to have a light on their way home. But of course people started to think about other different ways, how they can get a light. Then one american inventer whos name was Thomas Alva Edison experimented with different kinds of materials.Then in 1979 he discovered that perfect is carbon because the light bulb glowed for 40 hours but didnt burned up. This discovery was a big change not only because it was expensive to burn candles, but also the people will have enough light.
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Corrections · 2
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It has to be 1879 not 1979
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The invention of the light bulb
The invention of the light bulbIn the past it was usual that people used oil lamps or candles as a light. They used them to read, write, and to have a light on their way home. But of course people started to think about other different ways of how they could get light. Then one American inventer whose name was Thomas Alva Edison experimented with different kinds of materials. In 1979 he discovered that carbon was perfect because the light bulb glowed for 40 hours but didnt burn out. This discovery was a big change not only because it was expensive to burn candles, but also people could now have enough light.
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