The Flight Of The Boomerang
The boomerang is a curved piece of light weight material usually wood or plastic. It is designed in a way to travel large distances and has been used for millennia by the Aboriginal people of Australia as a hunting tool and a weapon.
There are different types of boomerangs for different uses. The most popular type of boomerang is the returning boomerang that once thrown returns to your hand. You have probably seen it many times and it is easily recognizable due to the fact that its curved shape. There are some boomerangs however, that are not made to return. This type of boomerangs was made mostly for hunting and weaponry uses.
Nevertheless, when thrown correctly these seemingly simply crafted objects return, on their own to the spot they were thrown from. There is no magic involved in this process or no tricks. Boomerangs return because of the laws of physics that work in relation to their distinct shape.
The returning boomerangs have the shape of an airplanes wing and they utilize drag forces to lift them in the air. Just like in planes the boomerang top surface is a bit longer than the surface underneath and when air travels faster underneath resulting in lift. Boomerangs fly because of the high pressure that develops underneath their wing while the top creates a low pressure area.
Keep in mind that in the returning boomerang one wing, the wing arm is a bit different than the handle one. As a result when thrown in the air one pulls the other in an angle. As it continues its flight the lift from the one corner makes the boomerang to at some point turn back and head to its starting position.
Whether a boomerang will return or not also depends on the way it is thrown. This requires some practice because it is important to get the right amount of spin in the throw. The right way to throw a boomerang is to tilt and gently pull the one side while you are throwing it away. This way you will increase the chances of it returning to your hand.
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