Nuclear technology is like playing with super tiny Lego blocks that are so small, you can't even see them without a really special machine called a microscope.
Sometimes, if you put these tiny blocks together in the right way, they make really powerful energy. This is kind of like building a big castle out of your small Lego blocks - it takes a lot of work to build, but once it's done, it's really strong and can do a lot of things.
Scientists and engineers use this powerful energy to make electricity that we use in our homes, to power things like lights and TVs. It can also be used to power really big things, like hospitals or even whole cities!
But, building and using nuclear technology is also really tricky and can be dangerous if not done carefully. It's important to make sure that the tiny Lego blocks don't get too close to each other, or they can make too much energy and cause an accident.
Because of this, there are special rules and safety measures in place to make sure that everyone stays safe when using nuclear technology.