What do boomerangs do?

Answer 1

A boomerang comes back to you because its wings are shaped and angled to emulate a plane's wing. Because the two wings are facing in different directions they create a pulling force that makes the curve shape of its flight pattern
The shape of the boomerang causses differences in the air pressure above and below it, and as it spins, this air pressure difference causses the flight of the boomerang to make a slow turn, which eventually brings it back to where it started (the flight can be adjusted by winds however, causing the flight path to distort and it will come back slightly off from where it started.
Because the air that hits one side hits the other side in the opposite direction, that makes the boomerang turn around and come back to the direction it is pointing when turning around.

Answer 2

they come back after you throw them but you need a returning boomerang or a non-returning boomerang

My answer:Boomerangs are Australian hunting weapons that are thrown and made of wood.

The popular toy based on them returns to the thrower

I do know that not all traditional hunting Boomerangs return to the thrower.

Answer 3

First you need to have a boomerang with the right shape to its wings - which is too much to describe here. Then you need to throw it right. The ones I have have to b usually means that it should be held in the thinner wing and thrown hook forward.