Alchemy was a form of early modern chemistry. Alchemists sought to create the so-called philosophers' stone in order to, among other goals, change metals such as lead into gold. For Newton and other ...

A cartoon drawing shows a robed, bearded man with a pet weasel on his shoulder as he examines a piece of paper while sitting at a table containing a book, a flask, and a chunk of gold. Affirmation for ...