Graham bell alexander biography of rory gilmore death

Alexander Graham Bell is best known as the inventor of the telephone — the first to transmit the human voice by means of an electric current — but there was much more to this extraordinary man than his breakthrough in communications technology. His grandfather Alexander Bell was an actor, photography enthusiast and elocution professor who may have been the model for Professor Henry Higgins in Pygmalion by playwright George Bernard Shaw.

He was encouraged by his father to study and experiment with anything electrical, including telegraph technology. These illustrated the kind of learning he relished: hands-on discovery. This job reinforced his lifelong commitment to the interests of the deaf community.

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He also tutored and mentored private students, including Helen Keller — , and facilitated her introduction to teacher Annie Sullivan. Bell was a constant source of support for both teacher and student. From to , Bell spent his days teaching hearing-impaired children and his evenings experimenting with sound. The funds for his scientific experiments came from the fathers of two of his students.

To help deaf children, Bell had experimented in the summer of with a human ear and attached bones, along with materials including magnets and smoked glass. It was then that he conceived the theory of the telephone: that an electric current can be made to change its force just as the pressure of air varies during sound production.

That same year he invented a telegraph that could send several messages at once over one wire, as well as a telephonic-telegraphic receiver While Bell supplied the ideas, Boston machinist Thomas Watson created the equipment.