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Tin Phones
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Feb
24
2010
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Answer #1
YES! It’s an old game many children play. By stretching a string taught between two cans, sound vibrations can travel from one can to the other. The bottom of a can acts like a diaphragm in a regular phone, vibrating as many as 1,000 times per second. The string then transmits the current in much the same way a telephone wire would. Try it!