Telephone

Telephone: is a communication device which allows two or more users to make a conversation and listen to each other directly even though they are not in the same vicinity.

Telephone an invention which helps to communicate with people. Useful when we are located at a different place to have a conversation with family members, friends, colleagues etc. With use of telephone we know what’s happening, health status of a particular person, events, occasion, mishaps, gossip, etc. Telephones a vital part of our lives, in the yester years the regulatory authorities during crisis used to temporary disconnect the connection to avoid wide spread of public panic. The telephone has evolved from Hand Cranked wall phones to the i-phone. Main function of the telephone is to make calls, now modern telephones can perform various  functions like text, voicemail, pictures, video, music, internet, emails, GPS, video games etc. The telephone works on the principle that converts sound waves in electric signals and vice-verse. Simultaneous inventions of the microphone signal amplifiers and speaker were required for the telephone.

 Alexander Graham Bell, inventor of the telephone, filed a patent describing his method of transmitting sounds on February 14, 1876, just hours before Elisha Gray. On March 7, 1876, the Patent Office awarded Bell what is said to be one of the most valuable patents in history. It is most likely that both Bell and Gray independently devised their telephone designs as an outgrowth of their work on harmonic telegraphy. Alexander Graham Bell, inventor of the telephone, when he made the first call on March 10, 1876, to his assistant Thomas Watson said "Mr. Watson--come here--I want to see you.


Following video, we can listen the original voice of Graham Bell in which he says" hear my voice, Alexander Graham Bell".

Life would not be the same without telephone.