Acoustic emission

Acoustic emission is a big word that describes the sounds that things make when they break or bend. Like when you break a stick in half, you can hear a crack! That's acoustic emission.

Scientists and engineers use special machines to listen to these sounds and figure out what's happening inside things. For example, they might listen to a big pipe and hear tiny sounds that tell them the pipe is about to break. Then they can fix it before it becomes a big problem.

Acoustic emission is like a special way of listening to things that helps us understand how they work and how to fix them when they break.