Andre-Marie Ampere

The ampere, commonly abbreviated as 'amp,' is the SI base unit of electric current, named in honor of Andre-Marie Ampere's foundational work in electromagnetism. It is defined based on the force between two parallel current-carrying conductors and is one of the seven base units in the International System of Units.

After Ørsted demonstrated in 1820 that an electric current deflects a compass needle, Ampere conducted a systematic series of experiments showing that parallel current-carrying wires attract or repel each other depending on current direction. This work culminated in Ampère's Law, which mathematically describes the magnetic field produced by an electric current.

Ampere coined the term 'electrodynamics' to describe the study of the forces between electric currents, publishing his comprehensive theory in 1827 as the 'Memoir on the Mathematical Theory of Electrodynamic Phenomena.' This work established electromagnetism as a rigorous mathematical discipline and directly influenced James Clerk Maxwell's later electromagnetic theory.

Largely yes—Ampere was a prodigy who taught himself mathematics and Latin as a child in Lyon, reportedly mastering advanced mathematics by his early teens. He never received a formal university education in science but rose to become a professor at the École Polytechnique in Paris through his extraordinary analytical abilities.