A can phone is an easy communication gadget produced from two empty cans and a string. It really works by transmitting sound vibrations by means of the string, permitting two individuals to speak to one another over a distance. Can telephones are sometimes used as toys for kids, however they can be used for sensible functions, corresponding to speaking between totally different rooms in a home or between two people who find themselves exterior.
Can telephones are simple to make and require only some supplies. To make a can phone, you will want two empty cans, a string, and a nail or sharp object. First, poke a gap within the backside of every can. Then, thread the string by means of the holes and tie a knot in every finish. Lastly, communicate into one can and hearken to the opposite can to listen to the sound.