Belidor, Bernard Forest de

Belidor, Bernard Forest de

(bĕrnär` fôrĕ` də bālēdôr`), 1693–1761, French engineer. He wrote numerous books dealing with mathematics, artillery, and hydraulic, civil, and military engineering. One of his engineering works, a manual of rules and tables, was reprinted until 1830. His four-volume Architecture hydraulique (1737–53) was the first work of its kind to apply integral calculus to practical problems; its influence for the next hundred years was international in scope.
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