Newton the squirrel and his sister, Curie, conduct experiments based on what they hear through a classroom window, making simple machines to learn more about how the world works and to help their neighbors. Includes author's notes and glossary of scientific terms.
Through tests, tears, and triumphs as a fire drives the Waltons from their home, John-Boy becomes a scriptwriter, Mary Ellen applies to nursing school, and Jim-Bob discovers a fact about his birth, all while Hitler and Mussolini threaten the world.