David was last Thursday's speaker. For me it was a wonderful talk and I am thinking of getting his book on light and nature.

Book on Color and Light in Nature:
http://www.colorandlightinnature.com/

Book on the San Andreas: http://geology.about.com/od/bookreviews/gr/lynchSAFguide.htm

I love rainbows, and now I know more about them, I appreciate his vast knowledge of the universe, I look more now, to look for the beauty of our sky