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ROBINS, BENJAMIN (1707–1751)

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Originally appearing in Volume V23, Page 422 of the 1911 Encyclopedia Britannica.
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ROBINS, See also:BENJAMIN (1707–1751) , See also:English See also:man of See also:science and engineer, was See also:born at See also:Bath in 1707. His parents were See also:Quakers in poor circumstances, and gave him very little See also:education. Having come to See also:London by the See also:advice of Dr See also:Henry Pemberton (1694–1771), who had recognized his talents, he for a See also:time maintained himself by teaching See also:mathematics, but soon devoted himself to See also:engineering and the study of fortification. In particular he carried out an extensive See also:series of experiments in gunnery, embodying his results in his famous See also:treatise on New Principles in Gunnery (1742), which contains a description of his ballistic pendulum (see See also:CHRONOGRAPH). Robins also made a number of important experiments on the resistance of the See also:air to the See also:motion of projectiles, and on the force of See also:gunpowder, with computation of the velocities thereby communicated to projectiles. He compared the results of his theory with experimental determinations of the ranges of mortars and See also:cannon, and gave See also:practical See also:maxims for the management of See also:artillery. He also made observations on the See also:flight of rockets, and wrote on the advantages of rifled barrels. His See also:work on gunnery -was translated into See also:German by L. See also:Euler, who added to it a See also:critical commentary of his own. Of less See also:interest nowadays are Robins's more purely mathematical writings, such as his Discourse concerning the Nature and Certainty of See also:Sir See also:Isaac See also:Newton's Methods of Fluxions and of See also:Prime and Ultimate Ratios (1735), " A Demonstration of the See also:Eleventh Proposition of Sir Isaac Newton's Treatise of Quadratures " (Phil. Trans., 1727), and similar See also:works. Besides his scientific labours Robins took an active See also:part in politics.

He wrote See also:

pamphlets in support of the opposition to Sir See also:Robert See also:Walpole, and was secretary of a See also:committee appointed by the See also:House of See also:Commons to inquire into the conduct of that See also:minister. He also wrote a See also:preface to the See also:Report on the Proceedings of the See also:Board of See also:General See also:Officers on their Examination into the Conduct of See also:Lieutenant-General Sir See also:John See also:Cope, in which he gave an See also:apology for the See also:battle of See also:Prestonpans. In 1749 he was appointed engineer-general to the See also:East See also:India See also:Company, and went out to superintend the reconstruction of their forts; but his See also:health soon failed, and he died at Fort St See also:David on the 29th of See also:July 1751. His works were published in two volumes in 1761.

End of Article: ROBINS, BENJAMIN (1707–1751)

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