Hemp seeds, or hemp hearts, have a high nutrition profile and are a healthy addition to most diets. Hemp seeds are the seeds of the same plant as marijuana, the cannabis plant, but they do not contain high levels of THC and will not get you high.
Nuclear explosion. Atomic bomb explosion. A nuclear explosion is energy being released from a very fast nuclear reaction. It can be caused by nuclear fission, nuclear fusion, or both. Atmospheric nuclear explosions are associated with mushroom clouds, although mushroom clouds can occur as a result of large chemical explosions.
Nuclear fusion is when two small atoms combine to form a larger, more stable nucleus. This releases even more energy than nuclear fission. Light nuclei fuse together into a larger nucleus, but the larger nucleus has less mass than the total of the lighter nuclei. The mass is lost as energy.