the number of letters in the new number. The output after three or more moves does not depend on the initially chosen number and therefore the magician can predict it. Awards and honors Kruskal's honors and awards included: Gibbs Lecturer, American Mathematical Society (1979); Dannie Heineman Prize, American Physical Society (1983); Howard N. Potts Gold Medal, Franklin Institute (1986); Award in Applied Mathematics and Numerical Analysis, National Academy of Sciences (1989); National Medal Of Science (1993); John von Neumann Lectureship, SIAM (1994); Honorary DSc, Heriot–Watt University (2000); Maxwell Prize, Council For Industrial And Applied Mathematics (2003); Steele Prize, American Mathematical Society (2006) Member of the National Academy of Sciences (1980) and the American Academy of Arts and Sciences (1983) Elected a Foreign Member of the Royal Society (ForMemRS) in 1997 Elected Foreign Member of the Russian Academy of Sciences(2000) Elected a Fellow of the Royal Society of Edinburgh (2001) References External links In Memoriam: Martin David Kruskal Solitons, Singularities, Surreals and Such: A Conference in Honor of Martin Kruskal's Eightieth Birthday NY Times Obituary, 01-13-07 Princeton University Weekly Bulletin Obituary, 02-05-07 Chris Eilbeck/Heriot–Watt University, Edinburgh, UK Los Angeles Times Obituary, 01-06-07 Obituaries – Martin David Kruskal Society for Industrial and Applied Mathematics, April 11, 2007 1925 births 2006 deaths 20th-century American mathematicians 21st-century American mathematicians 20th-century American Jews Foreign Members of the Royal Society Members of the United States National Academy of Sciences Fellows of the American Physical Society National Medal of Science laureates Courant Institute of Mathematical Sciences alumni Princeton University faculty American relativity theorists Rutgers University faculty University of Chicago alumni Scientists from New Rochelle, New York 20th-century American physicists Howard N. Potts Medal recipients Jewish physicists Mathematicians from New York (state) Fellows of the Royal Society of Edinburgh 21st-century American Jews