Olinto De Pretto

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Olinto De Pretto
Olinto De Pretto
Born	(1857-04-26)26 April 1857 Schio, Austrian Empire
Died	16 March 1921(1921-03-16) (aged 63) Schio, Province of Vicenza, Italy
Nationality	Italian
Alma mater	Superior School of Agriculture, Milan
Known for	Claimed nonrelativistic derivation of the mass–energy equivalence relation (E=mc2) Work on the radioactive decay of uranium and thorium Effects of glaciers on the formation of mountains Work on agronomics
Scientific career
Fields	Theoretical physics Geology
Institutions	Superior School of Agriculture, Milan mechanical foundry mill Alpinistic Circle
Academic advisors	Gaetano Cantoni

Olinto De Pretto (26 April 1857 – 16 March 1921) was an Italian industrialist and geologist from Schio, Vicenza. It is claimed by an^{[additional citation(s) needed]} Italian mathematician, Umberto Bartocci,^[1][2] that De Pretto may have been the first person to derive the energy–mass-equivalence ${\displaystyle E=mc^{2}}$, generally attributed to Albert Einstein. But this is refuted by Ignazio Marchioro in Quaderni di Schio, where it shows that the similarity was a coincidence, and that the energy proposed by De Pretto doubles the one of Einstein's formula.^[3] Also, De Pretto suggested that radioactive decay of uranium and thorium was an example of mass transforming into energy.^{[citation needed]}