How many boomerangs are there

Best Answer. Study guides. Q: How many different types of boomerangs are there? Write your answer Related questions. How many types of boomerangs are there? What materials are used to make boomerangs?

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Has a human ever been mailed via the United States Postal Service? Still have questions? Find more answers. Previously Viewed. Unanswered Questions. What are the advantage and disadvantages of the bandala system? The Aboriginal boomerang is also used as a digging tool, for making fire and as a club. Boomerangs were also used in other non-aboriginal prehistoric societies.

Rock paintings of boomerangs in North Africa date to 9, years ago. In Poland, archaeologists found a 23,year-old boomerang made of mammoth tusk. What makes the Aboriginal boomerang unique is that it has continued to be useful until recent times. Aboriginal boomerangs have the greatest diversity of forms.

Other cultures abandoned the boomerang after the invention of the bow and arrow. A curved boomerang when thrown will rotate more swiftly than a straight boomerang. More Importantly, the rotation center of a straight boomerang is unstable. A flat, straight boomerang tends to rotate around its long axis, rapidly flipping itself over.

The boomerang curve itself does not make it fly. The boomerang flys due to the cross-section shape of its arms. The top surface is slightly convex while the underside is nearly flat.

When a wing of this shape travels through the air it creates a pocket of low pressure above the wing and a pocket of high pressure below it. These forces respectively pull and push the wing-shaped arms upwards. If the airflow is fast enough the wing lifts and held in the current. In-flight, a boomerang is more like a helicopter than a plane. A boomerang rotation is usually times per second. Even if the forward motion of the boomerang slows down, the speed of rotation is often enough to hold it in the air.

A Boomerang needs to have a curve to allow it to spin fast and be stable. Kimberley Boomerangs often have longitudinal fluting that follows the contours of the boomerang. Those from the Coastal region have one arm longer than the other.

Inland Kimberley boomerangs tend to be symmetrical. They often have red ochre and white pipe clay stripes. The most collectible form has a tight zigzag or La Grange style of fluting on the reverse. Kimberley Boomerangs and Bardi shields were for in inter-clan warfare. Fishing Boomerangs are asymmetric longitudinally and symmetrical in cross-section. It is often undecorated and not ochred. They are often used in shallow tidal water to kill larger fish and other marine animals.

Made from heavy woods or some late examples made of steel. It takes a strong throw to kill a fish even near the surface. The hunter would later retrieve the boomerang after the tide had gone out. These boomerangs are popular with collectors because they are lovingly incised.

There are two main types. Long fighting boomerangs are like a club. These are to all intents and purposes an Aboriginal club. They are boomerang-shaped though and known as fighting boomerangs. Smaller throwing boomerangs were also used in combat and tend to be flat on the bottom and concave on the top. Collectors value them for the designs. Pinched ends are also desirable.

These boomerangs are quite common and do not vary much from the example shown. They often have longitudinal grooves and are convex on the top and flattish on the bottom. They are normally covered in red ochre. It is possible that the longitudinal grooves improve its aerodynamics in a similar way as dimples on a golf ball. The central Australian Fighting boomerang is sometimes called a number 7 boomerang or a swan neck boomerang. The most collectible variety has a small notch at the top of the neck.

The design of this boomerang is for fighting. The protrusion will catch on the opponents shield and the long shaft whip around and inflict the damage. These boomerangs were so sorted after that they also acted as a form of currency. West Australian Boomerangs lack decoration, with a thin blade and rounded ends. They are not highly sorted after by collectors but there are exceptions. The main exception is boomerangs from this region with one straight arm and the other with a concave twist.

North Queensland boomerangs are brightly painted with designs like the shields from this region. The area around Cairns also has one of the rarest forms of boomerangs called a cross boomerang.

Boomerangs from this area are generally a crescent shape. They tend to be quite large averaging 90 cm long. They lack decoration or have only a few shallow incisions. Other than those from Mornington Island they are not painted. Two main types of Boomerang come from this region. First of all small often steeply curved returning boomerangs used for hunting birds. These small boomerangs are plain and not ochred.

The second type is fighting boomerangs. These were up to 90 cm and used to kill game or enemies. These are symmetrical longitudinally but convex on top and flatter on the bottom. This area also has a form of a rare club called a Lil Lil club.

Lil Lil clubs are boomerang-shaped and aerodynamic. All boomerangs are collectible but some are much more collectible than others. The most collectible boomerangs are the rarest, oldest authentic examples. Designs on the boomerang are often unique and are important.

When used in ceremony boomerangs were often used in pairs.