ELI5: Explain Like I'm 5

Helicopter

A helicopter is a type of aircraft that has spinning blades on top. The blades spin in a circle and push air down, which creates lift and makes the helicopter go up in the sky. The spinning blades also tilt and push the helicopter forward, backwards and side to side. That's why helicopters are able to fly in any direction and hover in the air, which makes them great at rescuing people and helping fight fires.