What country did Edison come from?

Thomas Alva Edison (1847, February11-1,10, 10/8) was born in Milan, Ohio. Inventors and entrepreneurs.

Edison is the son of a Canadian. His father, a descendant of the American Conservative Party, fled to Canada after the War of Independence. He is also a farmer who knows carpentry. His mother works as a teacher in the countryside. Edison is the youngest of seven children in the family.

Thomas Alva Edison: The King of Invention

1, the phonograph was born in 1877. The man who invented the phonograph in the world is Thomas Alva Edison, a world-famous inventor. According to the phenomenon that the diaphragm in the telephone transmitter vibrates with the sound, Thomas Alva Edison made an experiment with a short needle, from which he got great inspiration. Speech speed can make the short needle vibrate accordingly.

2, 1889, American Edison invented the camera. This camera is driven by a pointed roller 19mm wide non-porous adhesive tape. Under the control of a ratchet wheel, it drives the adhesive tape to move intermittently and punch holes at the same time.

This camera is driven by a motor, the shutter shaft is linked with the phonograph, and the phonograph records the sound when the camera is running. On this basis, the mobile camera was invented.

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