Alexander Graham Bell
Inventor of the Telephone Alexander Graham Bell was born in 1847 in Edinburgh, Scotland. He was an engineer and scientist and he invented the telephone in 1876. Both his mother and his wife were death. This influenced his research on hearing devices. Despite his life-changing invention, he considered the telephone an intrusion and refused to have one in his study! 48
Working from his laboratory in Boston and his home in Canada, he experimented with a pen-like machine that recorded sound waves by tracing their vibrations. He believed it may be possible to generate electrical currents that matched sound waves. He also thought that multiple metal reeds tuned to different frequencies could convert the currents back into sound.
Bell lacked the necessary equipment required to continue his experiments until he met an electrical designer named Thomas A. Watson. Together, they worked on acoustic telegraphy which eventually led to the 'gallows' sound-powered telephone. This transmitted indistinct, voice-like sounds but not clear speech. Bell patented the acoustic telegraph in 1876 and three days after the patent was issued he succeeded in getting his telephone to work. He did this using a liquid transmitter. December 2021
