Boomerang

Boomerang is a typical Aboriginal throwing weapon from Australia used for hunting. .while Throwing Stick-like weapons are also known to be made by other cultures around the world, most people associate boomerang with Australia because of the historical consistency and variety of examples. the boomerang movement is a combination of translations and rotations similar to helicopter blades. Boomerang is used as a hunting tool by Aboriginal tribes in the past. since aboriginal tribes have been trained to use boomerang. They began to be trained from boomerang made of wood and then boomerang with dulled metal ends and trained with sharp edges of metal.

why the boomerang can come back The boomerang design that has been created is capable of deflecting upward airflow and creating an uplifting lifestyle effect (Law of Bernaulli). The reason is, the air above the boomerang is faster than the air flow below. this theory is what seems to be able to make the boomerang longer.

How to throw a boomerang also helps him move in a big circle. The boomerang must be held vertically the side of the arch facing the thrower. the boomerang is also capable of rotating about 10 times a second and moving forward at a speed of about 95 km / h.

The automatic turn to the left comes from how the wind passes through the rotating arms. The boomerang flies forward, but is pulled back slightly, each time one arm turns down and back.

This combination creates pressure at the top of the boomerang and gradually turns to the left. when forming a large circle, the boomerang will also 'lie' like a circling helicopter propeller, then float down from the air and landed right into the hands of the thrower.