The tin can phone is a staple of longitudinal wave demonstrations wherein a human voice vibrates the bottom of a soup can, and compression waves travel along a string to reproduce the speaker in ...

For many kids, the tin-can telephone is a fun science experiment that doesn’t last much longer than it takes to tangle the string around a nearby tree. [Geoff] decided to go a different however ...

Now, all we needed was kite string. And lots of it ... I could hear him! Our tin-can telephone was working. We talked back and forth on our phones, saying nothing of importance and pretending ...