Newton the Alchemist

When Isaac Newton's alchemical papers surfaced at a Sotheby's auction in 1936, the quantity and seeming incoherence of the manuscripts were shocking. No longer the exemplar of Enlightenment rationality, the legendary physicist suddenly became “the last of the magicians.” This book unlocks the secrets of Newton's alchemical quest, providing a radically new understanding of the uncommon genius who probed nature at its deepest levels in pursuit of empirical knowledge. The book blends in-depth analysis of newly available texts with laboratory replications of Newton's actual experiments in alchemy. It does not justify Newton's alchemical research as part of a religious search for God in the physical world, nor does it argue that Newton studied alchemy to learn about gravitational attraction. The book traces the evolution of Newton's alchemical ideas and practices over a span of more than three decades, showing how they proved fruitful in diverse scientific fields. A precise experimenter in the realm of “chymistry,” Newton put the riddles of alchemy to the test in his lab. He also used ideas drawn from the alchemical texts to great effect in his optical experimentation. In his hands, alchemy was a tool for attaining the material benefits associated with the philosopher's stone and an instrument for acquiring scientific knowledge of the most sophisticated kind. The book provides rare insights into a man who was neither Enlightenment rationalist nor irrational magus, but rather an alchemist who sought through experiment and empiricism to alter nature at its very heart.