Who were Edison, Sandy Jr., Newton, Nobel, Albert Einstein, and Darwin?

Sandy Jr., Darwin, and Newton were all British.

Nobel is a Swede.

Edison was American.

Albert Einstein was a German who immigrated to the United States after Hitler came to power.

Edison – USA.

Little Sandy – Great Britain.

Newton – Great Britain.

Nobel – Sweden.

Albert Einstein – German-American.

Darwin – United Kingdom.

Thomas Edison (1847-1931) was a famous American inventor. He worked almost ten hours a day for decades, and read 3 to 5 hours in the study at night. So, on the day of Edison's 79th birthday, he proudly said to people, I am already 135 years old.

He lived to be 84 years old and made as many as 1,100 inventions during his lifetime, the greatest of which was the invention of the phonograph and the automatic telegraph, experimenting with and improving the incandescent lamp and **. Edison began to study electric lighting in his early 20s, and for more than 10 years, he successively chose bamboo cotton, graphite, tantalum ......and so on thousands of different substances as filament materials for testing, often through the sky, once he and his assistants worked for 5 days and nights. In 1879 Edison used carbon filament as an incandescent filament and lit it for 40 hours.

Because the surface of the carbon filament is porous, brittle, and the strength is very low. It was soon replaced by tungsten wire.

In 1883, Edison discovered the phenomenon of thermal electron emission, also known as the "Edison effect", that is, some electrons or ions near the metal surface get enough kinetic energy for their irregular movement due to high temperature, overcome the constraints of the surface, and escape from the metal. The Edison effect is essential for the operation of any vacuum tube, and the cathode, which is the emitting surface, is often coated with a layer of alkaline earth metal oxide to facilitate the emission of electrons, and heated with an electric current to maintain high temperatures.

In 1900, Edison invented the iron-nickel battery, which is an alkaline battery with an electromotive force of about 1 3 1 4 volts, which has a long life but is not very efficient. Edison made many inventions in his life, but when others asked Edison about the reason for his success, he said: Some people think that I have some genius, which is not true, "genius" is one percent inspiration, ninety percent of inspiration.

Newton was British; Edison was American.

Sir Isaac Newton (January 4, 1643 – March 31, 1727), President of the Royal Society, a famous British physicist, an encyclopedic "all-rounder", the author of "Mathematical Principles of Natural Philosophy" and "Optics".

Thomas Alva Edison (February 11, 1847 – October 18, 1931) was born in Milan, Ohio, USA, and died in West Orange, New Jersey, USA. Inventor, entrepreneur.

Name: Newton.

Nationality: British.

Newton was a great English mathematician, physicist, astronomer, and natural philosopher.

He was born on 25 December 1642 in the village of Walthop, near Grantham, Lincolnshire, England, and died in London on 20 March 1727.

Name: Thomas Edison.

Nationality: American.

Date of birth: February 11, 1847 --- October 21, 1931.

He is a famous American electrician, inventor, and entrepreneur.

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Thomas Alva Edison (February 11, 1847 – October 18, 1931) was born in Milan, Ohio, USA, and died in West Orange, New Jersey, USA. A world-famous inventor, physicist, and entrepreneur, he is known as the "World Invention King". He has more than 2,000 well-known and important invention patents, and has been awarded the title of "Wizard of Menlo Park" by the media.

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