Edison's full name was Thomas Alva Edison (February 11, 1847 - October 18, 1931). He was born in Milan, Ohio, USA, and died in New Jersey, USA. West Orange. Inventor, entrepreneur.
Edison was the first person in human history to use mass production principles and electrical engineering research laboratories to engage in invention patents that had a major and far-reaching impact on the world. His inventions of the phonograph, movie camera, and electric light had a great impact on the world. He made more than 2,000 inventions in his lifetime and held more than 1,000 patents.
From 1872 to 1876, he invented the electric telegraph, the automatic repeater telegraph method, the double and quadruple telegraph methods, and manufactured wax paper carbon resistors.
On December 28, 1874, the performance of the four-channel telegraph was demonstrated to Gould at the Newark factory.
The acoustic wave analysis resonator was invented in 1875. 1876 ??The first industrial research laboratory is established in Menlo Park, New Jersey. It was the origin of the modern concept of "study group". Invented the carbon rod microphone. Apply for a patent for the telegraph automatic recording machine.
The early telephone invented by Bell was improved and put into practical use in Menlo Park in 1877. Obtained three patents: perforated pen, pneumatic stylus and ordinary stylus. The phonograph was invented on August 20.
In 1878, Edison claimed to solve the problem of electric lighting. The Royal Society holds a gramophone exhibition. Improved gramophone. Design microphones, loudspeakers, aerial speakers, sound engines, tuning engines, microthermometers, taste testers, etc.
In July, he went to Wyoming with Professor Parker of the University of Pennsylvania to observe the total solar eclipse, and used the thermometer he invented to measure the entire temperature around the sun.
On October 5, a patent application for a platinum wire "electric lamp" was filed.
1884-1885 Edison left Menlo Park. The invention utilizes electric induction and can be used for wire communication.
A patent for wireless telegraphy was filed on May 23, 1885.
From 1887 to 1890, he improved the cylindrical phonograph and obtained more than 80 patent rights for phonographs. Engaged in manufacturing and selling phonographs, records, talking machines, etc.
The phonograph gramophone was invented in 1888.