Meucci is best known for developing a voice-communication apparatus which several sources credit as the first telephone.
In November 1821, at the age of 15, he was admitted to Florence Academy of Fine Arts as its youngest student, where he studied chemical and mechanical engineering.
In 1856 Meucci is claimed to have constructed the first electromagnetic telephone, made of an electromagnet with a nucleus in the shape of a horseshoe bat, a diaphragm of animal skin, stiffened with potassium dichromate and keeping a metal disk stuck in the middle.
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