http://qs1969.pair.com?node_id=741104


in reply to How many colors does a rainbow have?

Walter Lewin's Physics 8.02* course on MIT OCW explains exactly how many colors there are in a rainbow. And, really, it's far more complicated than you think.

* http://ocw.mit.edu/OcwWeb/Physics/8-02Electricity-and-MagnetismSpring2002/CourseHome/

--
Tilly is my hero.