Isaac Newton

Here is a man with an imagination so large that just ?by thinking on it,? he invented calculus and figured out the scientific explanation of gravity. Kathleen Krull presents a portrait of Isaac Newton that will challenge your beliefs about a genius whose amazing discoveries changed the world. Here is a man with an imagination so large that just ?by thinking on it,? he invented calculus and figured out the scientific explanation of gravity. Kathleen Krull presents a portrait of Isaac Newton that will challenge your beliefs about a genius whose amazing discoveries changed the world.