Felix Nelson Ponnamperuma, Sri Lankan pedologist (Galle, Ceylon 08 July 1920 – Kandy, Sri Lanka 11 December 1992)
Regarded as a world-renowned authority on chemistry of submerged soils
One of the firsts to apply thermodynamics to flooded soil systems
Explained quantitatively the kinetics of pH, redox potential, electrical conductivity and important ions in flooded soils
Armando Dias Tavares, Brazilian physicist (Rio de Janeiro 27 February…
Arrigo Antonio Raia, Brazilian surgeon (Araraquara, São Paulo State 23…
Gilson Gomes Vieira, Brazilian astronomer (1940 – Discovered new asteroids…
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