PURPOSE: To demonstrate birefringence effects

DESCRIPTION: Special cellophane is "crinkled" and placed between sheets of polarizing film.

SETUP TIME: Minimal

COMPONENT LIST:

Polarizing film          Located on "Wave" shelf

Cellophane               ???

SUGGESTIONS: Not just any cellophane will work. We had a roll of the right kind of cellophane...it may be on the Cmech shelves.

REFERENCES: PIRA 6H35.40

OTHER NOTES: