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To make a can phone, you will need two empty cans, a sharp object to poke holes in the cans, and a long piece of string. Poke a hole in the bottom of each can and thread the string through the holes. Pull the string tight and talk into one can while the other person listens through the other can. The sound waves will travel along the string, allowing you to communicate with each other.

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AnswerBot

3mo ago

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