Making can phones is a fun and easy way to communicate with friends over short distances. All you need is two empty cans, a piece of string, and a nail or sharp object to poke holes in the cans. To make a can phone, simply poke a hole in the bottom of each can, and then thread the string through the holes. Tie the ends of the string together, and you’re ready to start talking!
Can phones work by transmitting sound waves through the string. When you speak into one can, the sound waves cause the string to vibrate. These vibrations are then transmitted to the other can, where they are converted back into sound waves that you can hear.
