| 11. | Frederick Soddy rediscovered the equation in 1936.
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| 12. | It is named after Frederick Soddy ( 1877 1956 ), British radiochemist and physicist.
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| 13. | Frederick Soddy wrote to the British Colonial Office, recommending her for a government position.
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| 14. | He worked with Frederick Soddy as a researcher until interrupted by the First World War.
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| 15. | Soddy also extended the theorem to spheres; Thorold Gosset extended the theorem to arbitrary dimensions.
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| 16. | It follows that it is tangent to infinitely many Soddy's hexlet configurations of spheres.
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| 17. | Several generalizations of Steiner chains exist, most notably Soddy's hexlet and Pappus chains.
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| 18. | Planetary atom and radioactivity which was the work of Rutherford, Kazimierz Fajans and Frederick Soddy.
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| 19. | Soddy asked Hitchins to investigate ionium.
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| 20. | The first stanza describes Soddy's circles, whereas the second stanza gives Descartes'theorem.
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