Aage Bohr and Ben Mottelson (IMAGE) University of Copenhagen Caption Aage Bohr and Ben Mottelson were awarded the Nobel Prize in Physics in 1975 for their discovery of the connection between collective motion and particle motion in atomic nuclei and the development of the theory of the structure of the atomic nucleus based on this connection. Credit Niels Bohr Archive Usage Restrictions Credit: Niels Bohr Archive License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.