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Scientists
Physicists, biologists, chemists, and researchers
Daphne Koller
David Brewster
David Deutsch
David Filo
David Gross
David Hilbert
David J. Wineland
David Packard
David Suzuki
Democritus
Denis Papin
Dennis Gabor
Dennis M. Ritchie
Derek Barton
Diophantus of Alexandria
Dmitri Mendeleev
Dolph Lundgren
Donald Arthur Glaser
Donald Knuth
