ELI5: Explain Like I'm 5

Lyoluminescence

Lyoluminescence is a big word that means a special kind of light that happens when you mix two things together. The two things are usually a powder and a liquid, and when you put them together, they make a special kind of glow.

Imagine you have some sparkly glitter and a clear jar of water. When you pour the glitter into the water, it spreads out and looks pretty, but it doesn't make any light. Now imagine you have a different kind of glitter that can glow in the dark. When you mix that kind of glitter with the water, it will light up and make a cool glowing effect.

Lyoluminescence is like that glowing glitter effect, but with special scientific stuff that's much cooler than glitter. Lyoluminescence can happen when you mix certain chemicals in a powder form with a liquid, and then dry them out completely. When you add some more liquid back to the dry mixture, a special kind of light happens.

Scientists use lyoluminescence to study certain materials that glow in the dark without needing any battery or electricity. It's kind of like magic, but it's really just science!