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More Tinkering by Curt Gabrielson

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Chapter 22 Tube Music

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Make complex and curious sounds come from bamboo or PVC. CREDIT: Ros Dunlop

It’s said you can hear the sea if you listen to a conch shell, even if you’re not near the sea. It’s not true—you have to be near the sea. You see, the conch shell receives the sounds around it and then amplifies some of them as they resonate inside its gorgeous, spiraling cavity. If you’re near an interstate, you’ll hear the interstate noise selectively amplified in there; it will sound a lot like the sea. If you’re in a silent room, you’ll hear nothing. Please don’t take my word for it—try it yourself. You don’t need a conch shell.1 You can ...

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