Hands-On Canadian History: Inventors – Alexander Graham Bell

Posted July 15, 2018 2:50 am by LisaMarie

Hands-On Canadian History: Inventors – Alexander Graham Bell

Canada’s history includes some amazing inventors, such as Frederick Banting who discovered the connection between insulin and diabetes, and Alexander Graham Bell who patented the telephone. Make a Model Liquid Transmitter Mr. Bell’s invention involved using sound waves to complete an electrical circuit. Using a cone to amplify the sound causes a membrane to vibrate, […]
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