Physicist today stand on the shoulders of giants like Isaac Newton, Michael Faraday, James Clerk Maxwell, Albert Einstein, Nikola Tesla, Marie Curie, Lise Meitner, Enrico Fermi, Robert Oppenheimer, and Stephen Hawking. From electromagnetism and the speed of light, to splitting the atom, nuclear energy and the atomic bomb, this is the story of the people who changed the world with only the power of their imagination.