Make a Fossilized Rainbow ….fast!

You’ve seen rainbows in the water before… for example, a drop of oil on water, or an oily smudge floating near the shore.   Simon Field has a quick and easy way to make such a rainbow permanent – using water, paper and a drop of fingernail polish.   He also has a great explanation for how this works.   Besides the obvious value in the science of light and astronomy this little activity can be used as another bridge between arts and the sciences.  I’d love to hear some comments about how you might use this.

http://sci-toys.com/scitoys/scitoys/light/permanent_rainbows/permanent_rainbows.html

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