Fig. 2 (IMAGE) Osaka University Caption The top figure shows how the nature of the electromagnetic force acting between two bar magnets changes depending on their orientations, which is an exact analogy for the case of tensor force acting between a proton and a neutron in an atomic nucleus-shown in the bottom figure. Credit Osaka University Usage Restrictions None 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.