What did Edison invent?

1. Tin foil phonograph-invented in 1877.

At that time, Edison found that the diaphragm in the telephone transmitter would vibrate with the sound, so he made an experiment with a short needle, and found that the speed of speaking could make the short needle vibrate accordingly, thus concluding that this vibration could of course emit the original sound, so he began to study the problem of sound reproduction. 187765438+In February, Edison made this invention public, which caused a great sensation in the world at that time.

2. Electric light (tungsten lamp)-The first electric light was not invented by Edison, but by chemist Humphrey David.

1879 10, Edison finally succeeded in manufacturing incandescent light bulbs with carbon fiber as filament and began mass production. Later, this kind of electric light was accepted by the American people. During this period, Edison constantly improved his technology and finally decided to use tungsten wire as the filament, which has been used ever since.

3. Movable film camera-invented in 1889.

This camera is driven by a motor, and the shutter shaft is connected to the phonograph. When the camera is running, the phonograph records sound and can take pictures continuously.

4. Movable film projector-invented in 189 1.

This projector uses an engine in front of the light source to make the film strip of continuous pictures rotate at high speed, thus creating the illusion of motion. The light source projects the image on the film onto the screen.

5. Movies with sound-invented in 19 10. It consists of a phonograph and a camera. The camera is connected to the phonograph so that the sound can be recorded when the camera is running. During the screening, the phonograph runs synchronously with the picture, so that the sound and image are synchronized.

Chronology invented by Edison;

1893, the world's first film "studio" was built in the courtyard of Edison's laboratory.

1894 April 14 The first movable film projector cinema in new york opened.

1896 On April 23rd, the film was released for the first time in Koster-Bayer Concert Hall in new york, which was warmly welcomed by the public.

1902 vehicle power test with new battery, with a journey of 5,000 miles, which can be driven on one charge 100 miles, which was successful.

1903 Edison's company produced the first feature film great train robbery.

1909 has been used for ten years, and the research of battery has finally succeeded. Send a fax or telegram. Obtained the design patents of raw material machine, fine grinding machine and long kiln.

1910-1914 Complete the disc phonograph without damaging the records and diamond records. Complete the sound film machine.

"CD recording" was invented in 19 10.

19 12 invented "talking movies". Developed into a phonograph.

1914-1915 invented a comprehensive manufacturing method of carbonic acid, which combined a phonograph and a teleprompter as a teleprompter, allowing one party's phone to automatically record the other party's speech. Homemade benzene, indigo oil, etc.

In1915-1918, as many as 39 inventions were completed, the most famous of which were torpedo mechanism, flamethrower and underwater periscope.

1927 completed a long record.

1928 successfully extracted rubber from weeds.

193 1 year1October18th, Edison died in west orange at the age of 84. 193 1 year1October 2 1 day, lights were turned off all over the United States to show condolences.