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Scientists
Physicists, biologists, chemists, and researchers
Piero della Francesca
Pierre Curie
Pierre de Fermat
Pierre Gassendi
Pierre Omidyar
Pierre-Louis Moreau de Maupertuis
Pierre-Simon Laplace
Pieter Boddaert
Pieter Zeeman
Pompeu Fabra
Posidonius
Primo Levi
Proclus
Ptolemy
Pyotr Kapitsa
Pythagoras
Rachel Carson
Radia Perlman
Raimonds VΔjonis