1854 - 1919
Johannes (Janne) Robert Rydberg (Swedish: [ˈrŷːdbærj]; 8 November 1854 – 28 December 1919) was a Swedish physicist mainly known for devising the Rydberg formula, in 1888, which is used to describe the wavelengths of photons (of visible light and other electromagnetic radiation) emitted by changes in the energy level of an electron in a hydrogen atom. Read more on Wikipedia
Since 2007, the English Wikipedia page of Johannes Rydberg has received more than 119,498 page views. His biography is available in 42 different languages on Wikipedia (up from 40 in 2019). Johannes Rydberg is the 240th most popular physicist (down from 223rd in 2019), the 136th most popular biography from Sweden (down from 135th in 2019) and the 6th most popular Swedish Physicist.
Johannes Rydberg is most famous for his work on atomic spectra. He was the first to correctly explain the difference between the spectra of hydrogen and helium.
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Among physicists, Johannes Rydberg ranks 240 out of 717. Before him are Burton Richter, Sheldon Lee Glashow, Claude-Louis Navier, David J. Thouless, Ettore Majorana, and Jagadish Chandra Bose. After him are David Bohm, Klaus Hasselmann, Julian Schwinger, Pierre-Gilles de Gennes, Gustaf Dalén, and Georg Bednorz.
1931 - 2018
HPI: 61.65
Rank: 234
1932 - Present
HPI: 61.62
Rank: 235
1785 - 1836
HPI: 61.58
Rank: 236
1934 - 2019
HPI: 61.52
Rank: 237
1906 - 1959
HPI: 61.40
Rank: 238
1858 - 1937
HPI: 61.40
Rank: 239
1854 - 1919
HPI: 61.39
Rank: 240
1992 - 1992
HPI: 61.36
Rank: 241
1931 - Present
HPI: 61.23
Rank: 242
1918 - 1994
HPI: 61.16
Rank: 243
1932 - 2007
HPI: 61.08
Rank: 244
1869 - 1937
HPI: 61.04
Rank: 245
1950 - Present
HPI: 61.03
Rank: 246
Among people born in 1854, Johannes Rydberg ranks 16. Before him are Henri La Fontaine, Paul Sabatier, George Eastman, Milan I of Serbia, Georges Picquart, and Engelbert Humperdinck. After him are Paul Natorp, Duchess Marie of Mecklenburg-Schwerin, Paul von Rennenkampf, Moritz Moszkowski, Albert Edelfelt, and Prince Louis of Battenberg. Among people deceased in 1919, Johannes Rydberg ranks 25. Before him are Grand Duke Paul Alexandrovich of Russia, Habibullah Khan, Ismail Qemali, L. Frank Baum, Madam C. J. Walker, and Kurt Eisner. After him are Prince John of the United Kingdom, Leonid Andreyev, Henry Gantt, Milan Rastislav Štefánik, Princess Marie Isabelle of Orléans, and Guido von List.
1854 - 1943
HPI: 68.35
Rank: 10
1854 - 1941
HPI: 66.83
Rank: 11
1854 - 1932
HPI: 64.15
Rank: 12
1854 - 1901
HPI: 64.08
Rank: 13
1854 - 1914
HPI: 61.65
Rank: 14
1854 - 1921
HPI: 61.63
Rank: 15
1854 - 1919
HPI: 61.39
Rank: 16
1854 - 1924
HPI: 61.07
Rank: 17
1854 - 1920
HPI: 60.86
Rank: 18
1854 - 1918
HPI: 60.30
Rank: 19
1854 - 1925
HPI: 60.20
Rank: 20
1854 - 1905
HPI: 59.47
Rank: 21
1854 - 1921
HPI: 58.84
Rank: 22
1860 - 1919
HPI: 63.06
Rank: 19
1872 - 1919
HPI: 62.98
Rank: 20
1844 - 1919
HPI: 62.37
Rank: 21
1856 - 1919
HPI: 62.23
Rank: 22
1867 - 1919
HPI: 62.17
Rank: 23
1867 - 1919
HPI: 62.08
Rank: 24
1854 - 1919
HPI: 61.39
Rank: 25
1905 - 1919
HPI: 60.88
Rank: 26
1871 - 1919
HPI: 60.54
Rank: 27
1861 - 1919
HPI: 60.45
Rank: 28
1880 - 1919
HPI: 60.31
Rank: 29
1848 - 1919
HPI: 60.06
Rank: 30
1848 - 1919
HPI: 60.04
Rank: 31
Among people born in Sweden, Johannes Rydberg ranks 136 out of 1,612. Before him are Gustav, Prince of Vasa (1799), Lennart Johansson (1929), Charles VII of Sweden (1130), Sigfrid Edström (1870), Halsten Stenkilsson (1050), and Ulf von Euler (1905). After him are Claes Oldenburg (1929), Magnus III of Sweden (1240), Catherine of Vadstena (1331), Emund the Old (1030), Nathan Söderblom (1866), and Ingegerd Olofsdotter of Sweden (1001).
1799 - 1877
HPI: 61.71
Rank: 130
1929 - 2019
HPI: 61.51
Rank: 131
1130 - 1167
HPI: 61.47
Rank: 132
1870 - 1964
HPI: 61.42
Rank: 133
1050 - 1081
HPI: 61.42
Rank: 134
1905 - 1983
HPI: 61.40
Rank: 135
1854 - 1919
HPI: 61.39
Rank: 136
1929 - 2022
HPI: 61.38
Rank: 137
1240 - 1290
HPI: 61.30
Rank: 138
1331 - 1381
HPI: 61.30
Rank: 139
1030 - 1060
HPI: 61.20
Rank: 140
1866 - 1931
HPI: 61.18
Rank: 141
1001 - 1050
HPI: 61.17
Rank: 142
Among physicists born in Sweden, Johannes Rydberg ranks 6. Before him are Manne Siegbahn (1886), Anders Jonas Ångström (1814), Hannes Alfvén (1908), Kai Siegbahn (1918), and Rolf Maximilian Sievert (1896). After him are Gustaf Dalén (1869), Oskar Klein (1894), Christopher Polhem (1661), Knut Ångström (1857), Bert Bolin (1925), and Vagn Walfrid Ekman (1874).
1886 - 1978
HPI: 68.34
Rank: 1
1814 - 1874
HPI: 66.97
Rank: 2
1908 - 1995
HPI: 63.97
Rank: 3
1918 - 2007
HPI: 62.53
Rank: 4
1896 - 1966
HPI: 62.08
Rank: 5
1854 - 1919
HPI: 61.39
Rank: 6
1869 - 1937
HPI: 61.04
Rank: 7
1894 - 1977
HPI: 55.99
Rank: 8
1661 - 1751
HPI: 54.70
Rank: 9
1857 - 1910
HPI: 49.58
Rank: 10
1925 - 2007
HPI: 48.99
Rank: 11
1874 - 1954
HPI: 48.16
Rank: 12