STEVEN CHU - FIRST DAY COVER SIGNED - HFSID 267770
Sale Price $63.00
The Nobel Prize winner signs his name on a First Day Cover honoring the steam carriage
First Day Cover signed: "Steven Chu", 6½x3½. First Day Cover commemorating the steam carriage (1866), postmarked Tuscon, Arizona, January 25, 1991, seven 4-cent stamps affixed, FIRST DAY OF ISSUE. Printed history of the invention on verso. StevenChu (b. 1948) of Stanford University was co-recipient with William Phillips and Claude Cohen-Tannoudji of the 1997 Nobel Prize in Physics "for development of methods to cool and trap atoms with laser light." Chu dubbed this process "optical molasses." Chu continues cutting edge research in atomic, biological and polymer physics. Fine condition.
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