How does the sun release nuclear energy

The release of energy with the fusion of light elements is due to the interplay of two opposing forces: the , a manifestation of the , which holds protons and neutrons tightly together in the ; and the , which causes positively in the nucleus to repel each other. Lighter nuclei (nuclei smaller than iron and nickel) are sufficiently. [pdf]

3d space

In , a three-dimensional space (3D space, 3-space or, rarely, tri-dimensional space) is a in which three values () are required to determine the of a . Most commonly, it is the three-dimensional Euclidean space, that is, the of three, which models . More general three-dimensional spaces are called [pdf]