Historically there have been references to boomerang like sticks which have been used in various parts of the world for a long time now. Their origins are not entirely clear though. Research shows that tribes in Europe during ancient times used a similar kind of throwing device for hunting and during wars. There have been historical references which state that such devices were popular once in Egypt and in Australia. World over though the country which is famed for boomerangs is Australia. Australian Aborigines have been using them for many centuries now. The very name boomerang is of Australian Aboriginal origin.
Boomerang as a sport is very popular in several parts of the world. There are various competitions that are held throughout the world. There are separate contests for throwing, trick catch, maximum time afloat and endurance, to mention only a few. In the modern sporting version of a boomerang, the boomerang is made up of hardwood or composite materials. They also come in various different shapes and sizes. Most of the boomerangs that are used in competitions weigh less than 100 grams. The scientific principle behind the returning of the boomerang to its point of origin is very interesting. A returning boomerang is in fact an airfoil. A falling boomerang actually starts spinning and then fall in a motion that is usually follows a spiral path. Whenever a boomerang is thrown very high, the wings of the boomerang are known to produce lift. There are larger boomerangs which are used in hunting. These boomerangs fall to the ground quickly after they strike a target. Since the boomerang when thrown high spins, it usually follows a curvaceous path rather than a straight one. Whenever someone who is trained in throwing them, throws on into the air, it returns to its point of origin. One can get plenty of useful information on the various boomerang based sporting events that take place around the world by visiting dedicated online sources.