Michael Faraday

By Lucía Cárdenas

The greatest experimentalist in history started as a bookbinder's apprentice — and he rewrote physics without ever learning the mathematics of it.

Michael Faraday was born in 1791 in Newington, Surrey, the son of a blacksmith, into a poor Sandemanian family. Apprenticed to a bookbinder at fourteen, he read the books he was binding — the Encyclopaedia Britannica article on electricity seized him — and attended Humphry Davy's lectures at the Royal Institution, binding his notes into a volume he sent to Davy with a plea for work. Davy hired him as a laboratory assistant in 1813, and Faraday never left.

In 1821, within months of learning of Ørsted's and Ampère's work, Faraday made the first electric motor: a wire rotating continuously around a magnet — electromagnetic rotation, the ancestor of every motor on earth. Then came 1831, his annus mirabilis. On August 29 he wrapped two coils around an iron ring and saw the galvanometer needle flick when the current started and stopped: electromagnetic induction — a changing magnetic field produces an electric current. Within weeks he had the dynamo, the transformer, and the laws of electrolysis. He had discovered how to make electricity in quantity, and therefore the modern world.

Faraday's deeper revolution was the field. Rejecting action-at-a-distance, he pictured lines of force filling space — magnets and currents as disturbances in a medium. Maxwell, who called him the greatest, mathematized the picture into electromagnetic theory; Einstein kept Faraday's portrait on his wall. Maxwell's equations are the mathematics of Faraday's intuition. Faraday refused a knighthood, refused to make chemical weapons for the Crimean War, and gave famous Christmas lectures for children at the Royal Institution — the same institution where he had once arrived as a bookbinder's boy with a bound volume of notes. He died at Hampton Court in 1867, having done more with his hands, eyes, and imagination than any theorist of his century.

Impact on civilization

Faraday's induction made electricity a utility: the dynamo and the transformer are the reason power can be generated and distributed at scale — every grid on earth runs on his 1831 discovery, and every motor descends from his rotating wire of 1821. His concept of the field remade physics itself, replacing action-at-a-distance with a medium that fills space; it is the ancestor of field theory, relativity, and quantum electrodynamics. He gave the world both its power and its picture of reality.