books.google.de - "Dr. Gamow, physicist and gifted writer, has sketched an intriguing portrait of the scientists and clashing ideas that made the quantum revolution." — Christian Science MonitorIn 1900, German physicist Max Planck postulated that light, or radiant energy, can exist only in the form of discrete packages...https://books.google.de/books/about/Thirty_Years_that_Shook_Physics.html?hl=de&id=L90_wY1VCW0C&utm_source=gb-gplus-shareThirty Years that Shook Physics
