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AMPERE, ANDRE MARIE (1775–1836)

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Originally appearing in Volume V01, Page 879 of the 1911 Encyclopedia Britannica.
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AMPERE, See also:ANDRE See also:MARIE (1775–1836) , See also:French physicist, was See also:born at Polemieux, near See also:Lyons, on the 22nd of See also:January 1775. He took a passionate delight in the pursuit of knowledge from his very See also:infancy, and is reported to have worked out See also:long arithmetical sums by means of pebbles and See also:biscuit crumbs before he knew the figures. His See also:father began to See also:teach him Latin, but ceased on discovering the boy's greater inclination and aptitude for mathematical studies. The See also:young Ampere, however, soon resumed his Latin lessons, to enable him to See also:master the See also:works of See also:Euler and Bernouilli. In later See also:life he was accustomed to say thai he knew as much about See also:mathematics when he was eighteen as ever he knew; but his See also:reading embraced nearly the whole See also:round of knowledge—history, travels, See also:poetry, See also:philosophy and the natural sciences. When Lyons was taken by the See also:army of the See also:Convention in 1793, the father of Ampere, who, holding the See also:office of See also:juge de paix, had stood out resolutely against the previous revolutionary excesses, was at once thrown into See also:prison, and soon after perished on the See also:scaffold. This event produced a profound impression on his susceptible mind, and for more than a See also:year he remained sunk in apathy. Then his See also:interest was aroused by some letters on See also:botany which See also:fell into his hands, and from botany he turned to the study of the classic poets, and to the See also:writing of verses himself. In 1796 he met Julie Carron, and an See also:attachment sprang up between them, the progress of which he naively recorded in a See also:journal (Amorum). In 1799 they were married. From about 1796 Ampere gave private lessons at Lyons in mathematics, See also:chemistry and See also:languages; and in 18o1 he removed to Bourg, as See also:professor of physics and chemistry, leaving his ailing wife and See also:infant son at Lyons. She died in 1804, and he never recovered from the See also:blow.

In the same year he was appointed professor of mathematics at the lycee of Lyons. His small See also:

treatise, Considerations sur la theorie mathentatique du jeu, which demonstrated that the chances of See also:play are decidedly against the habitual gambler, published in 1802, brought him under the See also:notice of J. B. J. See also:Delambre, whose recommendation obtained for him the Lyons See also:appointment, and afterwards (1804) a subordinate position in the See also:polytechnic school at See also:Paris, where he was elected professor of mathematics in 1809. Here he continued to prosecute his scientific researches and his multifarious studies with unabated See also:diligence. He was admitted a member of the See also:Institute in 1814. It is on the service that he rendered to See also:science in establishing the relations between See also:electricity and See also:magnetism, and in developing the science of See also:electromagnetism, or, as he called it, electrodynamics, that Ampere's fame mainly rests. On the 1th of See also:September 1820 he heard of H. C. Oersted's See also:discovery that a magnetic See also:needle is acted on by a voltaic current. On the 18th of the same See also:month he presented a See also:paper to the See also:Academy, containing a far more See also:complete exposition of that and kindred phenomena.

(See See also:

ELECTROKINETICS.) The whole See also:field thus opened up he explored with characteristic See also:industry and care, and See also:developed a mathematical theory which not only explained the electromagnetic phenomena already observed but also predicted many new ones. His See also:original See also:memoirs on this subject may be found in the See also:Ann. Chico. Phys. between 182o and 1828. See also:Late in life he prepared a remarkable Essai sur la philosophic See also:des sciences. In addition, he wrote a number of scientific memoirs and papers, including two on the integration of partial See also:differential equations (Jour. Ecole Polytechn. x., xi.). He died at See also:Marseilles on the loth of See also:June 1836. The See also:great amiability and childlike simplicity of Ampere's See also:character are well brought out in his Journal et See also:correspondence (Paris, 1872).

End of Article: AMPERE, ANDRE MARIE (1775–1836)

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AMPERE, JEAN JACQUES (1800-1864)