Fidel Castro
Alexander Graham Bell
Born 3 March 1847Edinburgh, Scotland. Died 2 August 1922 (aged75) Causeof death Pernicious anemiaBiographyFirst works
Education
First experiments with sound
Prototype model of the telephoneTelephone
The race to the patent office Elisha Grey
Febrary 14, 1876
March 7, 1876
Proof of concept
Elisha Grey, Amos Dolbear
In 18 years, 600 litigationsCompetitorsLater inventionsInterests varied
18 patents and other 12 shared (some planes)
Metal jacket
Audiometer
Locator of icebergs
Alternative fuels
CausesBrake boundaries of international communication.
Faster and more eficient technology than the ones at that moment.
ConsequencesMade communication easier and faster.It was better than other communication gadgets.Made possible the internet through telephone wire, helping internet improving .First advances in sound artifacts.Importance
