British psychiatrist, medical geneticist, mathematician, and chess theorist
Lionel Penrose
Penrose, c. 1971
Born
Lionel Sharples Penrose
(1898-06-11)11 June 1898[1]
London, UK[3]
Died
12 May 1972(1972-05-12) (aged 73)
London, UK
Alma mater
St John's College, Cambridge University of Vienna King's College London
Known for
Penrose triangle Penrose method Penrose stairs[4] Penrose's Law[5][6] Penrose square root law Penrose–Banzhaf index
Spouse
Margaret Leathes
(m. 1928)
Children
Oliver Penrose Roger Penrose Jonathan Penrose Shirley Hodgson
Awards
Fellow of the Royal Society[1] Lasker Award[2] James Spence Medal 1964.
Scientific career
Fields
Pediatrics, Psychiatry, Genetics
Institutions
University of Cambridge University College London
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.[6][7] Penrose was initially the Galton professor of eugenics (1945–1963) at University College London, before having his title changed to professor of human genetics (1963–1965) at his request. He was later emeritus professor.[8]
^ abHarris, H (January 1997). "Lionel Sharples Penrose, 1898–1972". Biographical Memoirs of Fellows of the Royal Society. 19: 521–561. doi:10.1098/rsbm.1973.0019. JSTOR 769572. PMID 11615728.
^"Lasker Award to LS Penrose". Archived from the original on 16 February 2016. Retrieved 19 January 2009.
^Penrose, L. S.; Penrose, R. (February 1958). "Impossible Objects: A Special Type of Visual Illusion". British Journal of Psychology. 49 (1): 31–33. doi:10.1111/j.2044-8295.1958.tb00634.x. PMID 13536303.
^Cite error: The named reference law was invoked but never defined (see the help page).
^ abPenrose, L. S. (March 1939). "Mental Disease and Crime: Outline of a Comparative Study of European Statistics". British Journal of Medical Psychology. 18 (1): 1–15. doi:10.1111/j.2044-8341.1939.tb00704.x.
^Bewley, Thomas (2 January 2018). "Lionel Penrose, Fellow of the Royal Society". Psychiatric Bulletin. 24 (12): 469. doi:10.1192/pb.24.12.469.
^Cite error: The named reference munk was invoked but never defined (see the help page).
Lionel Sharples Penrose, FRS (11 June 1898 – 12 May 1972) was an English psychiatrist, medical geneticist, paediatrician, mathematician and chess theorist...
popularized in the 1950s by psychiatrist LionelPenrose and his son, the mathematician and Nobel Prize laureate Roger Penrose, who described it as "impossibility...
independently discovered and made popular by LionelPenrose and his son Roger Penrose. A variation on the Penrose triangle, it is a two-dimensional depiction...
Oliver Penrose FRS FRSE (born 6 June 1929) is a British theoretical physicist. He is the son of the scientist LionelPenrose and brother of the mathematical...
tensors Penrose stairs, impossible object (co-created with his father LionelPenrose) Penrose tiling, an example of an aperiodic tiling Penrose triangle...
Roger Penrose is a son of physician Margaret (née Leathes) and psychiatrist & geneticist LionelPenrose. His paternal grandparents were J. Doyle Penrose, an...
the 9th Correspondence Olympiad (1982–1987). Penrose was the son of Margaret Leathes and LionelPenrose, a professor of genetics, the grandson of the...
painter James Doyle Penrose, and his grandmother was the daughter of the philanthropist Lord Peckover. His uncle was polymath LionelPenrose, whose children...
must be non-circular. Penrose stairs – created by Oscar Reutersvärd and later independently devised and popularised by LionelPenrose and his mathematician...
In the mathematical theory of games, the Penrose square root law, originally formulated by LionelPenrose, concerns the distribution of the voting power...
named after John Banzhaf (originally invented by LionelPenrose in 1946 and sometimes called Penrose–Banzhaf index; also known as the Banzhaf–Coleman...
George's, University of London since 2003. Hodgson is the daughter of LionelPenrose and his wife Margaret Leathes and the granddaughter of the physiologist...
The Penrose method (or square-root method) is a method devised in 1946 by Professor LionelPenrose for allocating the voting weights of delegations (possibly...
also sometimes referred to as the Penrose–Terrell effect, the Terrell–Penrose effect or the Lampa–Terrell–Penrose effect, but not the Lampa effect. By...
third of four brothers; his older brother was the medical geneticist LionelPenrose. Roland grew up in a strict Quaker family in Watford and attended The...
The original problem was first solved in 1958 by Roger Penrose using ellipses to form the Penrose unilluminable room. He showed that there exists a room...
influenced by, and is an artistic implementation of, the Penrose stairs, an impossible object; LionelPenrose had first published his concept in the February 1958...
by physician Wilhelm Weinberg in 1912 and explicitly by psychiatrist LionelPenrose in 1955. DNA-based research started more recently, in 1998, in the context...
developed close friendships with Patrick Blackett, Henry Whitehead and LionelPenrose. In September 1937, Newman and his family accepted an invitation to...
The term "mongolism" was used by English psychiatrist and geneticist LionelPenrose as late as 1961. F. G. Crookshank published a pseudoscientific book...
The diagrammatic notation can thus greatly simplify calculations. Roger Penrose described spin networks in 1971. Spin networks have since been applied...
Archived from the original on 2019-07-13. Retrieved 28 February 2015. Penrose, LS; Penrose, R. (1958). "Impossible objects: A special type of optical illusion"...
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