Talking Cups

Ribbon attached to a cup
PIRA: 
3C20.00
Area: 
3 Oscillations and Waves
Topic: 
3C Acoustics
Concept: 
Pitch

 

Hold the plastic ribbon against the bottom of a cup and run your fingernail down the ridges. With a little practice you can clearly make out the phrases recorded on the ribbons.

 

Demo Contact

Scott Thomas
Demonstration Manager
828-262-2435
thomassa@appstate.edu