ELI5: Explain Like I'm 5

Magnesium diboride

Magnesium diboride is a special kind of substance made up of two elements: magnesium and boron. Magnesium diboride is a superconductor, which means that it can conduct electricity with almost no resistance. Think of it like a superhighway for electricity!

It's made by taking magnesium and boron and heating them up really, really hot until they turn into a solid. Once the solid has cooled down, it becomes a special kind of crystal with very specific properties. Magnesium diboride crystals are kind of like tiny little building blocks that can be put together to make really powerful superconductors.

But why is magnesium diboride so special? Well, it's because of the way that the magnesium and boron atoms are arranged in the crystal. They form a kind of net that helps electrons move through the crystal with almost no resistance. This net is sort of like a maze that the electrons have to navigate, but it's a super-easy maze that they can move through really quickly without getting slowed down.

Scientists are really excited about magnesium diboride because it has a lot of potential applications. One of the most important is in making super-powerful magnets, which can be used in things like MRI machines at hospitals. Magnesium diboride can also be used to make really efficient electrical wires that don't lose any energy as they move electricity from one place to another.