What is André-Marie Ampère?
[[File:Ampere Andre 1825.jpg|thumb|André-Marie Ampère]] '''André-Marie Ampère''' (20 January 1775 – 10 June 1836) was a [[France|French]] [[physicist]] or a [[mathematician]] who helped discover [[electromagnetism]]. An [[electricity|electrical]] unit called the [[ampere]] is named after him. == Life == Ampere was born in France in 1775. During his childhood, Ampere's father taught him [[Latin]], until he found out that his son was talented in mathematical studies. However, young Ampere continued his study on [[Latin]], so that he could understand and master the works of [[Leonhard Euler|Euler]] and [[Daniel Bernoulli|Bernoulli]]. In his later life, Ampere began to distinguish himself in mathematics, but also he studied [[history]], travels, poetry, philosophy, and the [[natural sciences]]. During the [[French Revolution]], a great sorrow came to Ampere's life; he lost his father who was executed by revolutionaries. The death of his father brought a huge impact to Ampere. In 1796, he met the daughter of a [[blacksmith]] living near Lyon named Julie Carron, and married her in 1799. Afterward, Ampere worked as a professor in Lyon, giving lessons in mathematics, chemistry, languages, and physics. He continued working as a professor even after the death of his wife in 1803. However, her death bothered Ampere for the rest of his life. Ampere died at [[Marseille]] and buried in the Cimetiere de [[Montmartre]], Paris. In his work ''Journal et correspondence'', we can see his amiability and childlike simplicity of character. == Works == {{Electromagnetism}} Ampere is most known for establishing the relationship between electricity and magnetism, and combining them into a new field called [[electromagnetism]], or [[electrodynamics]]. On September 11, 1820, Ampere heard from the discovery of H.C.Orsted that a magnetic needle can be activated by a voltaic current. Only a week later, he came up with a much more advanced version of that kindred phenomena. It was such an amazing development. On the same day, he also di