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Lionel Sharples Penrose, FRS (11 June 1898 – 12 May 1972) was an English psychiatrist, medical geneticist, paediatrician, mathematician and chess theorist, who carried out pioneering work on the genetics of intellectual disability.
Lionel Sharples Penrose, FRS ( Londres, 11 de junho de 1898 — Londres, 12 de maio de 1972) foi um psiquiatra, geneticista, matemático e teórico do xadrez britânico.
18 de mai. de 2024 · From his landmark Colchester Survey on inheritance of “mental defect” in the 1930s, to his final talks on what came to be called “dermatoglyphics” in the 1960s and early 1970s, Penrose considered a single transverse crease across the palm to be diagnostically significant.
The Penrose stairs or Penrose steps, also dubbed the impossible staircase, is an impossible object created by Oscar Reutersvärd in 1937 and later independently discovered and made popular by Lionel Penrose and his son Roger Penrose.
Inspirados por uma exposição de Escher num congresso de matemática, em 1954, o matemático Roger Penrose e seu pai, o geneticista Lionel Penrose, interessaram-se pelas chamadas figuras impossíveis (o triângulo, a escada etc), e publicaram seus achados numa revista de psicologia britânica, em 1958.
19 de abr. de 2024 · Lionel Penrose: Scientist, Geneticist, and Dedicated Opponent of Eugenics. Lionel Sharples Penrose was the third Galton Chair at UCL from 1944 until his retirement in 1965, a pioneer in the study of mental illness and a passionate opponent of eugenics.
10 de mai. de 2022 · In 1959, Lionel and Roger Penrose, a father and son duo of mathematicians, introduced the two-dimensional concept of the Penrose stair. Essentially, the way it reads is that it takes the...
