Definition
A nuclear reactor is the powerhouse of nuclear energy, a device designed to initiate and control a sustained nuclear chain reaction. Inside, atoms are split, releasing immense heat that boils water. This steam then spins turbines, generating electricity. It's like a giant, controlled atomic bonfire used to power cities. Think of it as a very complex and carefully managed kettle. ⚛️ Nuclear reactors have robust safety systems to prevent accidents and release of radiation.