MATHEMATICIAN
Sydney Chapman
1888 - 1970

Sydney Chapman
Sydney Chapman (29 January 1888 – 16 June 1970) was a British mathematician and geophysicist. His work on the kinetic theory of gases, solar-terrestrial physics, and the Earth's ozone layer has inspired a broad range of research over many decades. Read more on Wikipedia
His biography is available in different languages on Wikipedia. Sydney Chapman is the 599th most popular mathematician (down from 536th in 2019), the 2,881st most popular biography from United Kingdom (down from 2,466th in 2019) and the 64th most popular British Mathematician.
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Among MATHEMATICIANS
Among mathematicians, Sydney Chapman ranks 599 out of 1,004. Before him are Henry Dudeney, Otto E. Neugebauer, Jean-Marie Duhamel, Giacomo F. Maraldi, Jai Singh II, and Pierre Fatou. After him are Arthur Moritz Schoenflies, Carl Adam Petri, Jacques Herbrand, Saunders Mac Lane, Boris Delaunay, and Efim Zelmanov.
Most Popular Mathematicians in Wikipedia
Go to all RankingsHenry Dudeney
1857 - 1930
HPI: 58.99
Rank: 593
Otto E. Neugebauer
1899 - 1990
HPI: 58.99
Rank: 594
Jean-Marie Duhamel
1797 - 1872
HPI: 58.96
Rank: 595
Giacomo F. Maraldi
1665 - 1729
HPI: 58.95
Rank: 596
Jai Singh II
1688 - 1743
HPI: 58.94
Rank: 597
Pierre Fatou
1878 - 1929
HPI: 58.93
Rank: 598
Sydney Chapman
1888 - 1970
HPI: 58.91
Rank: 599
Arthur Moritz Schoenflies
1853 - 1928
HPI: 58.91
Rank: 600
Carl Adam Petri
1926 - 2010
HPI: 58.90
Rank: 601
Jacques Herbrand
1908 - 1931
HPI: 58.88
Rank: 602
Saunders Mac Lane
1909 - 2005
HPI: 58.86
Rank: 603
Boris Delaunay
1890 - 1980
HPI: 58.85
Rank: 604
Efim Zelmanov
1955 - Present
HPI: 58.74
Rank: 605
Contemporaries
Among people born in 1888, Sydney Chapman ranks 142. Before him are Louis J. Mordell, Kan Kikuchi, Toyohiko Kagawa, Gazanfar Musabekov, Thomas C. Kinkaid, and Lotte Lehmann. After him are Vahram Papazian, Michał Sopoćko, Roger Ducret, Florence Lee, Milán Füst, and Konstantinos Tsiklitiras. Among people deceased in 1970, Sydney Chapman ranks 151. Before him are Giuseppe Pizzardo, Terry Sawchuk, Giancarlo Cornaggia-Medici, Kurt Feldt, Alf Prøysen, and František Junek. After him are Blanche Stuart Scott, Jun'ichi Kōuchi, Adhemar Pimenta, Albert Ayler, Daniel Kinsey, and Ernest Marsden.
Others Born in 1888
Go to all RankingsLouis J. Mordell
MATHEMATICIAN
1888 - 1972
HPI: 59.46
Rank: 136
Kan Kikuchi
WRITER
1888 - 1948
HPI: 59.44
Rank: 137
Toyohiko Kagawa
SOCIAL ACTIVIST
1888 - 1960
HPI: 59.21
Rank: 138
Gazanfar Musabekov
POLITICIAN
1888 - 1938
HPI: 59.13
Rank: 139
Thomas C. Kinkaid
MILITARY PERSONNEL
1888 - 1972
HPI: 58.93
Rank: 140
Lotte Lehmann
SINGER
1888 - 1976
HPI: 58.92
Rank: 141
Sydney Chapman
MATHEMATICIAN
1888 - 1970
HPI: 58.91
Rank: 142
Vahram Papazian
ACTOR
1888 - 1968
HPI: 58.87
Rank: 143
Michał Sopoćko
RELIGIOUS FIGURE
1888 - 1975
HPI: 58.64
Rank: 144
Roger Ducret
FENCER
1888 - 1962
HPI: 58.63
Rank: 145
Florence Lee
ACTOR
1888 - 1962
HPI: 58.57
Rank: 146
Milán Füst
WRITER
1888 - 1967
HPI: 58.43
Rank: 147
Konstantinos Tsiklitiras
ATHLETE
1888 - 1913
HPI: 58.37
Rank: 148
Others Deceased in 1970
Go to all RankingsGiuseppe Pizzardo
RELIGIOUS FIGURE
1877 - 1970
HPI: 59.46
Rank: 145
Terry Sawchuk
POLITICIAN
1929 - 1970
HPI: 59.37
Rank: 146
Giancarlo Cornaggia-Medici
FENCER
1904 - 1970
HPI: 59.30
Rank: 147
Kurt Feldt
MILITARY PERSONNEL
1897 - 1970
HPI: 59.28
Rank: 148
Alf Prøysen
WRITER
1914 - 1970
HPI: 59.15
Rank: 149
František Junek
SOCCER PLAYER
1907 - 1970
HPI: 59.09
Rank: 150
Sydney Chapman
MATHEMATICIAN
1888 - 1970
HPI: 58.91
Rank: 151
Blanche Stuart Scott
PILOT
1884 - 1970
HPI: 58.85
Rank: 152
Jun'ichi Kōuchi
FILM DIRECTOR
1886 - 1970
HPI: 58.80
Rank: 153
Adhemar Pimenta
COACH
1896 - 1970
HPI: 58.80
Rank: 154
Albert Ayler
MUSICIAN
1936 - 1970
HPI: 58.73
Rank: 155
Daniel Kinsey
ATHLETE
1902 - 1970
HPI: 58.64
Rank: 156
Ernest Marsden
PHYSICIST
1889 - 1970
HPI: 58.62
Rank: 157
In United Kingdom
Among people born in United Kingdom, Sydney Chapman ranks 2,882 out of 8,785. Before him are Mick Ronson (1946), Pat Jennings (1945), Alma Reville (1899), Mark Jones (1933), Ernest Mason Satow (1843), and John Neville (1925). After him are Arthur Brown (1942), Tony Brise (1952), Edward Coke (1552), Denny Laine (1944), Amy Robsart (1532), and Johnny Clegg (1953).
Others born in United Kingdom
Go to all RankingsMick Ronson
MUSICIAN
1946 - 1993
HPI: 58.92
Rank: 2,876
Pat Jennings
SOCCER PLAYER
1945 - Present
HPI: 58.92
Rank: 2,877
Alma Reville
WRITER
1899 - 1982
HPI: 58.92
Rank: 2,878
Mark Jones
SOCCER PLAYER
1933 - 1958
HPI: 58.92
Rank: 2,879
Ernest Mason Satow
DIPLOMAT
1843 - 1929
HPI: 58.92
Rank: 2,880
John Neville
ACTOR
1925 - 2011
HPI: 58.92
Rank: 2,881
Sydney Chapman
MATHEMATICIAN
1888 - 1970
HPI: 58.91
Rank: 2,882
Arthur Brown
SINGER
1942 - Present
HPI: 58.91
Rank: 2,883
Tony Brise
RACING DRIVER
1952 - 1975
HPI: 58.90
Rank: 2,884
Edward Coke
JUDGE
1552 - 1634
HPI: 58.90
Rank: 2,885
Denny Laine
MUSICIAN
1944 - 2023
HPI: 58.90
Rank: 2,886
Amy Robsart
NOBLEMAN
1532 - 1560
HPI: 58.89
Rank: 2,887
Johnny Clegg
MUSICIAN
1953 - 2019
HPI: 58.89
Rank: 2,888
Among MATHEMATICIANS In United Kingdom
Among mathematicians born in United Kingdom, Sydney Chapman ranks 64. Before him are Harold Jeffreys (1891), Edward Arthur Milne (1896), William Whiston (1667), Joseph Raphson (1648), Thomas Wright (1711), and Henry Dudeney (1857). After him are James Ivory (1765), Douglas Hartree (1897), John Playfair (1748), Harold Scott MacDonald Coxeter (1907), William Burnside (1852), and Robert Simson (1687).
Harold Jeffreys
1891 - 1989
HPI: 60.08
Rank: 58
Edward Arthur Milne
1896 - 1950
HPI: 59.78
Rank: 59
William Whiston
1667 - 1752
HPI: 59.74
Rank: 60
Joseph Raphson
1648 - 1715
HPI: 59.29
Rank: 61
Thomas Wright
1711 - 1786
HPI: 59.19
Rank: 62
Henry Dudeney
1857 - 1930
HPI: 58.99
Rank: 63
Sydney Chapman
1888 - 1970
HPI: 58.91
Rank: 64
James Ivory
1765 - 1842
HPI: 58.66
Rank: 65
Douglas Hartree
1897 - 1958
HPI: 58.29
Rank: 66
John Playfair
1748 - 1819
HPI: 58.21
Rank: 67
Harold Scott MacDonald Coxeter
1907 - 2003
HPI: 58.08
Rank: 68
William Burnside
1852 - 1927
HPI: 58.00
Rank: 69
Robert Simson
1687 - 1768
HPI: 57.88
Rank: 70