- February 19 -

Edison's Phonograph Patented

Patent for Phonograph Issued February 19, 1878 One of Edison's first great inventions Washington - Thomas A. Edison, one of the outstanding geniuses in the history of technology, received patent no. 200,521 for a phonograph on February 19, 1878. This patent is just one of the more than one...

Edison's Phonograph Patented

Patent for Phonograph Issued February 19, 1878 One of Edison's first great inventions
Washington - Thomas A. Edison, one of the outstanding geniuses in the history of technology, received patent no. 200,521 for a phonograph on February 19, 1878. This patent is just one of the more than one thousand Edison was granted for his inventions.

Edison was exceptionally inquisitive, and while tinkering with the telegraph transmitter he discovered that when played back at high speeds, the tape sounded like spoken words. He figured out that the human voice, and other sounds, could cause a light material plate to vibrate. And, when properly placed, a needle could indent the plate, recording the vibrations, and found that yet another needle could play them back. He eventually rigged a tinfoil cylinder and a stylus with which he recorded, 'Mary Had a Little Lamb.'

Edison's inventions have been a mainstay of our economy for over 100 years. At the turn of the 20th century, Edison's New Jersey laboratory (now a national monument), was the hub around which factories employing 5,000 people produced new products, including the mimeograph, the fluoroscope, the alkaline storage battery, dictating machines, and motion picture cameras and projectors. The electric light bulb, his most famous invention, was the foundation for today's General Electric Company.
Source:
http://www.uspto.gov/news/pr/2002/02-13.jsp

Categories:

You may also like...

Interesting events from Science category.

Birth of the Modern Automobile

The Benz Patent-Motorwagen (or motorcar), built in 1886, is widely regarded as the first automobile; that is, a vehicle designed to be propelled by a motor. The vehicle was awarded the German patent, number 37435, for which Karl Benz applied on January 29 , 1886. Following...

International Day for Achievers

International Day for Achievers is celebrated to pay tribute to achievers in any field for their outstanding achievements or achievement. These achievers can be Scientist, Doctor, Conservationist, Teacher, Social Worker etc. who have used their imagination and vision to ease or enhance the...

Elihu Yale's Birthday

Elihu Yale (April 5, 1649 – July 8, 1721) was a British merchant and philanthropist, Governor of the East India Company settlement in Bengal, at Calcutta and Chennai and a benefactor of the Collegiate School of Connecticut, which in 1718 was renamed Yale College in his honor. Although...

World Space Party - Yuri's Night

Yuri's Night is an international celebration held on April 12 every year to commemorate space exploration milestones. The event is named for the first human to launch into space, Yuri Gagarin, who flew the Vostok 1 spaceship on April 12, 1961. The launch of STS-1, the first Space Shuttle mission,...

Asteroid Day

Asteroid Day is a global movement to protect our earth from asteroids. Asteroid Day aims to raise awareness of the threats posed by space rocks and eventually help boost the rate of near-Earth asteroid discovery by a factor of 100.
Asteroid Day is held on June 30, the anniversary of the 1908...

World UFO day

World UFO Day is an awareness day for people to gather together and watch the skies for unidentified flying objects. In the past there were two days that were called World UFO day. July 2nd and the 24th of June. The WUFODO (World UFO Day Organization) declared July 2nd to be the official World UFO...

Download KeepIn Calendar

Enjoy the interesting stories even on your phone or tablet