How ‘Tiny' Nuclear Weapon Release ‘SO MUCH ENERGY’ That It WIPES OUT Entire City? #shorts

A nuclear chain reaction in uranium occurs when the nucleus of a uranium-235 atom absorbs a neutron and becomes unstable. This instability causes the nucleus to split in a process called nuclear fission. When a uranium-235 nucleus splits, it releases a large amount of energy, two or three free neutrons, and two smaller nuclei (called fission fragments), which are usually radioactive.

The released neutrons can go on to strike other uranium-235 nuclei, causing them to split and release more neutrons and energy. This self-sustaining cycle is known as a chain reaction. For a chain reaction to occur, there must be a critical mass of uranium—enough material so that the emitted neutrons are likely to strike other uranium-235 atoms rather than escape.

In nuclear reactors, the chain reaction is carefully controlled using materials like control rods that absorb excess neutrons, preventing the reaction from growing uncontrollably. In contrast, an uncontrolled chain reaction—such as in a nuclear bomb—releases energy explosively.

The energy produced during fission primarily comes in the form of heat, which in reactors is used to produce steam that drives turbines to generate electricity. This process is highly efficient and does not produce greenhouse gases, but it does generate radioactive waste that must be carefully managed.

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