Colloid thruster

A colloid thruster is like a tiny rocket that shoots out a super fine mist, sort of like a spray bottle or the mist that comes out of a perfume bottle. This mist is made up of teeny, tiny particles called colloids. When the colloids shoot out of the thruster, they push against the air around them and create a force, kind of like when you blow up a balloon and then let it go and it goes flying around the room.

Scientists and engineers use colloid thrusters to move things around in space, like satellites or spacecrafts. Because the mist is so fine, it doesn't take much energy to push it out of the thruster, and it doesn't create a lot of heat or waste like traditional rocket engines.

So, basically, a colloid thruster is like a really fancy spray bottle that shoots out tiny particles to help move things around in space.