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Alexander Grahambell

Presentations | English

Why do we answer the phone with hello? When the telephone was invented, Alexander Graham Bell wanted people to use the word ahoy as a greeting. Supposedly his rival Thomas Edison suggested hello, while Bell stubbornly clung to ahoy, and well—you know which one stuck around. Alexander Graham Bell is most well known for inventing the telephone. He came to the U.S as a teacher of the deaf and conceived the idea of “electronic speech” while visiting his hearing-impaired mother in Canada. He first became interested in the science of sound because both his mother and wife were deaf. His experiments in sound eventually let him to want to send voice signals down a telegraph wire. They formed the Bell Telephone Company in 1877. Bell worked extensively in medical research and invented techniques for teaching speech to the deaf. During his Volta laboratory period, Bell and his associates considered impressing a magnetic field on a record as a means of reproducing sound.

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Lumens

6.25

Lumens

PPTX (25 Slides)

Alexander Grahambell

Presentations | English