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Newton Newton's father died three months before he was born. When he was two years old, his mother remarried a priest and left Newton to be raised by his maternal grandmother. When he was 11 years old, his mother's husband died, and his mother returned to Newton with a son and two daughters born to him.
Newton was reticent and stubborn from an early age, a habit that may have come from his family situation.
Edison.
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Poverty is a fart.
Success, poverty motivates you.
Unsuccessful, you continue to be poor.
Long-term work at home.
Lu Xun's family was a landlord.
**The family is a landowner.
Yang Zhenning and Lee Tsung-dao's parents are both professors.
Yuan Shikai's granddaughter is Wu Chien-shiung, who proved the theories of Yang Zhenning and Lee Tsung-dao.
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Edison was a great electrician and inventor. Born in Mylan, Ohio, USA, he worked in his father's carpentry mill from an early age, and due to his family's poverty, he only spent three months in school. But he has loved science since he was a child, studied hard, and was obsessed with inventions, and officially registered 1,328 kinds of inventions, known as the world's king of inventions.
His inventions were based not only on ingenuity, but also on painstaking scientific practice. For example, when he invented the electric light, he used 200 notebooks just to collect information; In order to find a suitable filament, more than 1,600 kinds of materials such as copper wire and platinum wire were used, as well as hair and various kinds of bamboo wire, and finally a kind of bamboo wire from Japan was selected, which became the original filament after burning and carbonization. As he himself said:
Invention is one percent inspiration plus ninety-nine percent blood and sweat. ”
This article is excerpted from Xiyuan Publishing House's "New Lesson Plan for Quality Education".
An inglorious page for Edison.
In 1888, American electrical engineers Tesla and Westin decided to develop an alternating current business. For the sake of his direct current business, Edison fiercely opposed the use of alternating current, almost strangling the use of alternating current in the cradle and delaying the progress of human civilization.
He set up a huge laboratory, hired elementary school students to go out on the street to catch cats, dogs and other livestock for experiments, and brutally electrocuted them under alternating current. He also unblocked the ** of the New York State Penitentiary, making them promise to change the hanging to electrocution, that is, to electrocution using alternating current. Due to their inexperience, the charges used by the authorities were so weak that the prisoners were only half electrocuted.
According to the ** report at the time, this horrific sight was much more terrifying than hanging. Since then, AC has gained notoriety. The promotion and application of alternating current has fallen into a serious predicament.
In the face of the continuous slander and attacks of Edison, the giant of scientific invention, Tesla and Westin were not discouraged. They insisted on experiments, and proved with a large number of facts that alternating current has the advantages of safety and reliability. In 1893, at the Chicago International Exposition, alternating current was recognized for its obvious superiority.
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