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Thomas Alva Edison February 11, 1847 - October 18, 1931) was an American inventor and businessman who invented and developed many products intended for mass consumption.
The electric bulb
It is Edison's most famous invention and it has changed the lives of millions of people around the world. In 1878 Edison began experiments to create a light bulb and a year later introduced his invention. The electric bulb was safer and cheaper than the oil lamps and lanterns used at the time.
How did the bulb work?
The bulb consisted of an empty tube with a hot coal wire inside it. The secret of the success of the invention was that the bulb had a vacuum (there was no oxygen) and so the coal wire was not burned when the bulb was lit.
Today, bulbs like those invented by Edison are not recommended for use because they consume so much energy and are not so efficient. In order to protect the environment, we recommend using fluorescent bulbs that consume a little more energy and light.
Edison continued to work in his eighties. It was necessary to combine several diseases to beat him to death on October 18, 1931 - just as he was fifty-two years old when his electric bulb was born. He leaves behind 3.5 million pages of letters and lab records documenting 1093 patents.
Edison's inventions have changed history, but actually each of us can contribute something.
The electric bulb
It is Edison's most famous invention and it has changed the lives of millions of people around the world. In 1878 Edison began experiments to create a light bulb and a year later introduced his invention. The electric bulb was safer and cheaper than the oil lamps and lanterns used at the time.
How did the bulb work?
The bulb consisted of an empty tube with a hot coal wire inside it. The secret of the success of the invention was that the bulb had a vacuum (there was no oxygen) and so the coal wire was not burned when the bulb was lit.
Today, bulbs like those invented by Edison are not recommended for use because they consume so much energy and are not so efficient. In order to protect the environment, we recommend using fluorescent bulbs that consume a little more energy and light.
Edison continued to work in his eighties. It was necessary to combine several diseases to beat him to death on October 18, 1931 - just as he was fifty-two years old when his electric bulb was born. He leaves behind 3.5 million pages of letters and lab records documenting 1093 patents.
Edison's inventions have changed history, but actually each of us can contribute something.
22 במרץ 2017, 01:40