31. The work that Soddy and his research assistant Ada Hitchins did at Glasgow and Aberdeen showed that uranium decays to radium. 32. Simpler solutions such as those by Frederick Soddy in 1936 and by David Eppstein in 2001 are now known to exist. 33. Soddy proposed that several types of atoms ( differing in radioactive properties ) could occupy the same place in the table.34. In 1903, with Sir William Ramsay at University College London, Soddy showed that the decay of radium produced helium gas. 35. Soddy wrote that financial debts grew exponentially at compound interest but the real economy was based on exhaustible stocks of fossil fuels.36. Rutherford and his student Frederick Soddy were the first to realize that many decay processes resulted in the alpha and beta decay. 37. Soddy 's hexlet was also discovered independently in Japan, as shown by Sangaku tablets from 1822 in the Kanagawa prefecture.38. Note that the Euler line is orthogonal to the orthic axis and that the Soddy line is orthogonal to the Gergonne line. 39. In 1921, Frederick Soddy , then at the University of Oxford, obtained funding to rehire Hitchins as a technical assistant. 40. He died on July 23, 2005 in Soddy -Daisy, Tennessee after suffering a heart attack while on a bike ride.
