Why do paper towels and Windex make a squeaky noise when wiping a window? And how come you can change the pitch just by moving a different direction?

Question

Why do paper towels and Windex make a squeaky noise when wiping a window? And how come you can change the pitch just by moving a different direction?

In: Other

Answer 1

Now I’m curious about all things that make noise when rubbed together. Like styrofoam and nails on chalkboard.