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Telephone
Invented by Alexander Graham Bell, he conceived of the telephone at his summer home in Bradford, Ontario and physically created his first phone in Boston, Massachusetts. This was a result of improving the telegraph system. ( March of 1876) The telephone changed the way we communicate with one another because it results in being able to talk with another person through the phone, rather then verbal communication or written. -
Traffic light
The very first traffic light was a revolving gas latern with red and green lights installed in a London intersection in 1868, before the advent of automobiles. A later version of the traffic light based on railroad signals was installed in Detroit , Michigan in 1920. -
Television
Philo T. Fransworth who researched the television picture transmission and developed the dissector tube, which is the basic element of all current electronic televisions. Finally it was Philo T. Fransworth who became the first inventor to transmit a television image in 1927. The television changes the way we communicate because to be able to watch the t.v the viewer has to comprehend and understand what they are watching.
