KIDS TRIVIA

Detailed explanation-1: -The needle was connected by wire to the battery, and the battery was connected by wire to a receiver. When Bell spoke into the open end of the drumlike device, his voice made the paper and needle vibrate. The vibrations were then converted into an electric current which traveled along the wire to the receiver.

Detailed explanation-2: -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.

Detailed explanation-3: -Alexander Graham Bell is most famous for his invention of the telephone. 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.