·Make a “polariscope” on the overhead projector and throw on some plastic tablewear to get their attention.
·Where do the colors come from?
·Make your own polariscope and find the stripes in the plastic foil.
·Examine the plastic cuvette and fork.
·What happens if you bend the tines of the fork?
·Geologists, identify minerals with polarized light microscopes.
·Civil engineers examine stresses
inside structures with transparent models and a polariscope.
·Most lasers are polarized.