Edison invented a form of wireless telegraphy called: Electrostatic Induction. Visit the following link for more information about wireless telegraphy: http://en.wikipedia.org/wiki/Wireless_telegraph
no Alexander Graham Bell did
Thomas Edison improved the telephone by seeing that the original transmitter used a magnate. Edison increased the signal by introducing a carbon battery.
devices for telegraph he made inprovments in tecnology he invented cuplox telegraph electric pen for telegraph inprovments in telephone tec
To improve his work on the Microphone
To improve his work on the Microphone
Yes he invented the telegraph that can transport voice and sound from a long distance away. :)
yes
He did it in the 1880s because the sound quality of the first model was quite poor.
It is pretty much agreed that the first invention of Thomas Edison was a tin foil phonograph. The idea came to him while working to improve the efficiency of the telegraph. He noticed that if the telegraph sounds were played at a high rate of speed the sounds resembled words.
Yes a telegraph can be wireless. Thomas Edison invented the first wireless telegraph
Thomas Edison did not invent the telephone.
1856