Barber's pole

Topic:
Surface
This activity belongs to the GeoGebra book Attractive projects. 3D project: model a dynamic object.
In this example, the typical traditional American barbershops pole is modeled. A spinning barber pole creates a optical illusion, in which the stripes appear to be traveling up or down the length of the pole, rather than around it.
Author of the construction of GeoGebra: Rafael Losada