Short biograpfy of benjamin franklin
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Publicado: 11 de diciembre de 2011
BENJAMIN FRANKLIN
Possibly his most famous invention is electricity. He published his first writings on the subject in 1747; four years later, he publishedthe book Observations on Electricity. He thought that metal would act as a conductor for lightning in a storm. Not really having a laboratory that could containlightning, he had to improvise. So he did the now famous act of tying a metal key to a kite and flying both high in the air during a lightning storm. His experienceled him to create the lightning rod
Many of his other inventions came from a personal need or observation: He had bad eyesight and had to switch betweeneyeglasses of two different magnifications in order to read things up close or see things farther away. He got tired of all the eyeglasses switching, so he inventedbifocals. He also noticed that many people burned wood in their fireplaces even though many houses were still made of wood so, he came up with an iron furnace stovethat used less wood while producing more warmth. It was also a safer method of heating a building. This was the Franklin stove. Another invention that came out ofhis personal observations was the odometer, a device that keeps track of how many miles a vehicle has gone. Franklin was postmaster of Philadelphia and was curiousas to how many miles his postal carriage traveled on a typical day.
Although he retired from public life, Franklin still found time to invent things. Againdrawing on his personal experience, he invented a long wooden pole with a metal claw on one end. He used this device to reach books on high shelves in his house
Possibly his most famous invention is electricity. He published his first writings on the subject in 1747; four years later, he publishedthe book Observations on Electricity. He thought that metal would act as a conductor for lightning in a storm. Not really having a laboratory that could containlightning, he had to improvise. So he did the now famous act of tying a metal key to a kite and flying both high in the air during a lightning storm. His experienceled him to create the lightning rod
Many of his other inventions came from a personal need or observation: He had bad eyesight and had to switch betweeneyeglasses of two different magnifications in order to read things up close or see things farther away. He got tired of all the eyeglasses switching, so he inventedbifocals. He also noticed that many people burned wood in their fireplaces even though many houses were still made of wood so, he came up with an iron furnace stovethat used less wood while producing more warmth. It was also a safer method of heating a building. This was the Franklin stove. Another invention that came out ofhis personal observations was the odometer, a device that keeps track of how many miles a vehicle has gone. Franklin was postmaster of Philadelphia and was curiousas to how many miles his postal carriage traveled on a typical day.
Although he retired from public life, Franklin still found time to invent things. Againdrawing on his personal experience, he invented a long wooden pole with a metal claw on one end. He used this device to reach books on high shelves in his house
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