Who Invented the Microphone?
A microphone is a device that converts acoustic power into electric power. Both the acoustic power and the electric power have similar wave characteristics that convert sound waves into electric voltages that eventually convert back into sound waves through speakers. Microphone were used with the first telephones, and then with radio transmitters soon after.
Sir Charles Wheatstone was the first person to come up with the word “microphone” in 1827, but even so, it was Emile Berliner who invented the first microphone in 1876. Emile Berliner was born in Hanover, Germany in 1951. When he was 19, he moved to the United States in Washington. When he got there, he studied physics part time at Cooper Institute (now known as Cooper Union). Berliner helped out in the chemical laboratory and spent most of his time functioning as a seller of consumer dry goods. When Alexander Graham Bell introduced the first telephone at the U.S. Centennial Exposition, many inventors had a mission to improve this new revolutionary invention. Berliner, like everyone else, was fascinated with the telephone but had no means to improve it. Then a telegraph operator told him that more current passed as one pressed harder on the key and Berliner was suddenly inspired. He wanted to discover a way in which sound can be recorded and repeated.
In 1876, the 25 year old invented the gramophone, and then later the microphone as a telephone voice transmitter. The microphone became widely popular as it recorded sounds out of speakers at a volume louder than the ordinary human voice. The Bell Telephone Company was extremely impressed with the invention and later bought Berliner’s microphone for $50,000.
In 1878, David Edward Hughes invented the first carbon microphone, which later was improved during the 1920′s.
In 1964, James West and Gerhard Sessler from Bell Laboratories invented the electret microphone. The electret microphone had greater reliability, higher precision, lower cost, and a smaller size. The invention made an impact in the microphone industry with more than one billion being manufactured each year.
|
|
Comments (3)
Leave a Reply
- Who Invented the Telephone?
Alexander Graham Bell is commonly credited with the invention of the telephone. Bell filed a patent application for a working telephone on Feb. 14, 1876. Bell’s patent of the telephone has been successfully defended in five hundred and eighty-seven lawsuits, including five that reached the United States Supreme Court. Indeed, Alexander Graham Bell did invent [...]...
- Who Invented the Cell Phone?
Doctor Martin Cooper invented the modern cell phone. He invented the technology responsible for the cell phone when he was the Director of Research and Development at Motorola. Dr. Martin Cooper is also known as the first person to make a call on a cell phone. His revolutionary call took place in April of 1973 [...]...
- Who Invented the Projector?
A Projector is an optical instrument that is used to project a picture on a blank screen with the help of reflection or as done by a lantern. Basically, it enlarges and reflects an object. This is done with the help of lenses, prism and mirror that is used as a reflector. Apart from other [...]...
- Who Invented the Internet?
Despite Al Gore’s claims to the contrary, the Internet was not originally invented by or created by a single person. The Internet as we know it today is a combination of a number of concepts that have ultimately been merged together to provide the service. Tim Berners-Lee (or Sir Timothy John Berners-Lee as officially known [...]...
- Who Invented the Bullet Proof Vest?
Body armor has been in use by military forces since the early middle ages. Armor of metal, leather, cloth padding, silk and other plant material has been intrinsic to military actions since that time. The bullet proof vest, however, is a more recent invention with the specific design intent of protecting its wearer from firearm [...]...
nanananananananananana hu hu my
tec project is finished huray
thats right ……… well to me thats way true
nananananananananananananana hu hu my english project have finish huray