So yeah, I just decided I'd start this discussion for the sake of it.
Different types of reactors:
-Conventional(Second and third Generation of reactors)
The most commonly used types of nuclear reactors. Nothing really special about these.
-Thorium reactors
Nuclear reactors based on Thorium rather than Uranium. Advantages of these reactors are that they can't melt down (Thorium's melting point is higher than that of uranium), produce less radioactive waste (it degenerates in about hundred years) and that they can't be used in the production of nuclear weaponry. Another advantage is that thorium reserves are way larger then uranium reserves.
-Fourth generation reactors
Reactors using waste from third generation reactors. These come in all shapes and sizes, from semiconventional ones to reactors with a particle arcelerator attached to have the material decay faster. One negative point is that the same technology is used in enriching uranium for the production of nuclear weaponry
-Pocket reactors
Fully automated, smallscale reactors. Designed to power small isolated villages. Maintenance should only be needed every thirty years. In case of a problem, these will shut down automatically.
-Pellet reactors/ others
Conventional or other reactors which have special made fuel rods. When these reach dangerous temperatures, the metal casing around them will expand and shut down the reactor before a meltdown can occur.