Niels Bohr was one of the many geniuses kidnapped by the First Rani to create the time brain. He was considered a rival to Albert Einstein's ideas. (PROSE: Time and the Rani [+]Pip and Jane Baker, adapted from Time and the Rani (Pip & Jane Baker), Target novelisations (Target Books, 1988).) He was one of the contributors to the invention of the atomic bomb. The Third Doctor sneaked into his office one night to correct his notes, ensuring that the project would not fail. (PROSE: Come Friendly Bombs... [+]Dave Owen, Short Trips: Past Tense (Short Trips, 2004).)