How does shark repellent work?

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Manage episode 206167574 series 1335729
By Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio streamed directly from their servers.
Why don't I sneeze during the night? Why do flammable liquids feel cold? Can you speed up meteors to help destroy them? What causes me to cry all the time? How do shark repellents work? Plus, a cure for the common cold!

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