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It is sunset on a clear day. You are wearing your trusty polaroid sunglasses. You look straight overhead and the sky is somewhat dark. You slowly turn your body to the right (continuing to look up) and the sky gradually lightens to become maximally bright. At this moment your body is facing(circle correct answer):

  1. North
  2. East
  3. South
  4. West
  5. East or West
  6. North or South
  7. Cannot tell from information given

Draw a set of diagrams and write a paragraph or two showing ALL OF THE PHYSICS that explains your answer - include descriptions BOTH of the polaroid sunglasses themselves and the light scattering off of molecules in the atmosphere overhead.


Robert G. Brown 2003-02-09