☢️ There are several main types of nuclear reactors in the world, each with its own design features and operating principles. Among them are VVER reactor, RBMK reactor, heavy water reactors, gas-cooled reactors, and fast neutron reactors. Each type was developed for specific purposes and operating conditions. For example, VVER reactors became widely used due to their use of ordinary water as both coolant and moderator, making them relatively simple and cost-effective to operate. At the same time