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We appreciate snowflakes on a hot summer day. Born: July 18, 1635 London |
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| 1611 | Johannes Kepler described snow crystals. |
| 1635 |
René Descartes investigated snow crystals. |
| 1665 |
Robert Hooke examined crystals under a
microscope. (Recall Hooke and Newton became enemies over credit
for the refraction of light.) |
| 1931 |
Wilson A. Bentley, an American farmer photographed crystals to publish in a book. |
| 1954 |
Ukichiro Nakaya published the seminal Snow Crystals: Natural and Artificial. |
| 2006 |
US Postal Service published a block of four Christmas stamps from Kenneth Libbrecth’s Field Guide to Snowflakes. |
From signing the book upon joining the Royal Society in 1663.