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10 of the World’s Most Dangerous Fish
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Will Light-Speed Space Travel Ever Be Possible?
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Key People

Archimedes
Archimedes
Greek mathematician
Gaspard Monge, detail of an oil painting by Jean Naigeon, 1811; in the Museum of Fine Arts, Beaune, France.
Gaspard Monge, count de Péluse
French mathematician and public official
Joseph Bertrand
French mathematician and educator
Eugenio Beltrami
Italian mathematician