Two Can String Talk

Talking over two cans (or cups) and a string actually works. It is necessary to keep a tight string between the two ends, usually requiring a direct line. So long as the string is tightly secured, it will carry voice data. Example setup: Prerequisites: 2 people 2 paper cups 1 long non-stretchable string (e.g. kitestring) 1 hole puncher (needle, awl, etc) tape or good knot tying skills Method: