Microgeometric Design of Diatoms: Jewels of the Sea
A sunny pleasure dome with caves of ice!
(Samuel Taylor Coleridge on the Pleasure Palace of Kubla Khan)
Carl Sagan's Pale Blue Dot
On December 6, 1994, Carl Sagan, author of Cosmos, well-known astronomer and speaker, appeared before the Commonwealth Club of California in San Francisco to introduce his new book, Pale Blue Dot.1



