Dr. Mike Goldsmith is a science writer and former head of the U.K.'s National Physical Laboratory, where he specialized in astronomy and the science of sound. In his many nonfiction books for children, Mike engages with a wide range of topics, including mathematics, space exploration, time travel and the history of science. Mike received a PhD in astrophysics from Keele University in the U.K. He lives in Twickenham, near London. Tom Jackson, series editor, is a science and technology writer based in the United Kingdom. Tom specializes in recasting these subjects into lively historical narratives by uncovering lively stories that help to create new ways to enjoy the sciences. He studied at the University of Bristol and still lives in the city with his wife and three children.