EmDrive

Okay kiddo, so the emdrive is something called a propulsion system. A propulsion system is like a motor that helps a spaceship go faster and farther in space. The emdrive is special because it doesn't need any fuel or gas to work, it uses something called microwaves.

Microwaves are like tiny invisible waves that can travel very far. The emdrive bounces these microwaves back and forth inside of it, kind of like how you bounce a ball between your hands.

As the microwaves bounce back and forth, they create a force that pushes the emdrive forward in the direction it wants to go. It's kind of like a magic force that helps the spaceship move!

Now, some scientists don't believe that the emdrive is real or that it can work, but others are very excited and think it could be a game-changer for space travel. We'll just have to wait and see what happens!