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What’s an ear trumpet, and where can you find the world’s biggest collection of them? How did a frustrated young watchmaker transform the wheelchair forever? Why does a robotic arm make such a great dining companion? Today, Will and Mango discover some incredible inventions, past and present, that have made life a little easier for millions of people.

Got a question or idea for the show? Call our hotline at (302) 405-5925 or email higeniuses@gmail.com.

Ear trumpet diagram from the National Archives & Records Administration via Wikimedia Commons.

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