But the story of who invented the telephone goes beyond these two men.
Who Invented The Hand Crank Wall Phone. Hand crank phone chargers work in the exact same way, albeit on a much smaller handheld scale, that a wind turbine or a hydroelectric dam works. These turbines are already connected to a rechargeable battery like in a hand.
Antique Kellogg Hand-Crank Wall Phone | EBTH from ebth-com-production.imgix.net
A crank is an arm attached at a right angle to a rotating shaft by which circular motion is imparted to or received from the shaft. A wall mounted phone made of wood would be hand cranked to contact the operator who would then contect you to the party you were calling. In all three, a turbine is turned producing friction which produces electricity.
He is a pioneer in the wireless communications industry, especially in radio spectrum management, with eleven patents in the fie.
But the story of who invented the telephone goes beyond these two men. Cooper's vision for a personal wireless handheld telephone was inspired by watching captain kirk using his communicator on the television show star trek. Does the cranking provide power to the phone i always thought that the cranking rang the bell on the other end of the line, and that the phone itself used a transformer to amplify the input from the microphone, without using power? The telephone was invented by alexander graham bell.
