STEVEN CHU - FIRST DAY COVER SIGNED - HFSID 267771
Sale Price $63.00
The Nobel Prize winner signs his name on a First Day Cover promoting help for the mentally handicapped
First Day Cover signed: "Steven Chu", 6½x3½. First Day Cover promoting help for retarded children, postmarked Arlington, Texas, October 12, 1974, 10-cent stamp affixed, FIRST DAY OF ISSUE. Steven Chu (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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