How did Alexander Graham Bell Contribute

Science of Hearing

March marks a significant month in the life of Alexander Graham Bell. Bell was born on March 3 in 1847.

And just 29 years later, in 1876, he received the patent for his design of the telephone on March 7.

In honor of Bell, Noisy Planet would like to share a few of the ways in which his work made our lives better.

While Bell is best known as one of the inventors of the telephone, he had a deep knowledge of the science of sound.

And made important contributions to the detection of hearing loss.

Among his 30 patented inventions, Bell created the audiometer, which he used to test the hearing of hundreds of people, including children.

Bell Telephone Laboratories devised this sound measurement unit and named it “bel”—in honor of the organization’s founder.

The decibel is one-tenth of a bel. The decibel scale helps us understand which noises can damage hearing.  Because people can’t hear all frequencies, or pitches of sound.

Protect your children’s hearing by giving them earplugs or earmuffs to wear when exposed to sounds that exceed 85 dBA