Eureka! Through a first-person narrative, this biography tells the story of Isaac Newton and how he developed the theory of gravity. A tree, a falling apple, and a sharp mind that turned this everyday situation into an astonishing scientific discovery: Isaac Newton's theory of gravity fundamentally altered the way that we think about the universe and how it works. In this engaging biography, kids can see how the eccentric scientist developed his innovative ideas through hard work, experimentation, and a brand-new mathematics that became known as calculus. Short comic strips dramatize important episodes in his life, while sidebars provide historical context and simple, clear explanations of the scientific concepts.