weakness of Newton's "proof" at the end of Book 2, that vortices contradict the laws of astronomy. Nemenyi's scientific knowledge extended well beyond the subjects of his researches. He has been described as having "extreme[ly] versatile interests and erudition". Nemenyi's interest and ability encompassed several nonscientific fields. He collected children's art and sometimes lectured upon it. In 1951, he published a critique of the entire Encyclopædia Britannica, and suggested improvements for such diverse sections as psychology and psychoanalysis. Nemenyi was also deeply interested in the philosophy of mathematics and mathematical education. He translated David Hilbert and Stefan Cohn-Vossen's Anschauliche Geometrie into English, giving it the title Geometry and the Imagination. Clifford Truesdell writes that it was Nemenyi who first taught him "that mechanics was something deep and beautiful, beyond the ken of schools of "applied mathematics" and "applied mechanics"". Paul Nemenyi died on March 1, 1952, at the age of 56. He was survived officially by one son: Peter Nemenyi, then a student of mathematics at Princeton University. Supposed fatherhood of Bobby Fischer In 2002 Nemenyi was identified as the probable biological father of world chess champion Bobby Fischer, not the man named on Fischer's birth certificate. Additional details on their relationship were reported in 2009. Selected list of publications Posthumous publication, edited by Clifford Truesdell. Obituaries Science, 29 August 1952, Vol. 116. no. 3009, pp. 215–216 Journal of the Washington Academy of Sciences 1953, 43, pp. 62–63 [Clifford Truesdell wrote this obituary and the Science obituary, and they are virtually identical.] References External links 1890s births 1952 deaths Scientists from Rijeka Hungarian Jews Jewish emigrants from Nazi Germany to the United States Hungarian emigrants to the United States 20th-century American physicists 20th-century Hungarian physicists Jewish American scientists American people of Hungarian-Jewish descent Jewish physicists 20th-century chess players 20th-century American Jews Fluid_dynamicists