Can cans and string really be used like a telephone?
Episode 4 min 4s

Can cans and string really be used like a telephone?

From BrainStuff iHeartPodcasts
You've probably heard of this trick before: Connecting two cans with a piece of string in the bottom of each can will supposedly allow people to speak over a distance to one another. Tune in as Marshall Brain explains how it works in this episode.

Community discussion

No posts yet

Be the first to start the conversation about Can cans and string really be used like a telephone?