Boomerang

Wooden boomerang asv2021-05

Australia Boomerang Distribution

Evolution of Boomerang

Australia Cairns Boomerang

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4 boomerangs du tombeau de Toutânkhamon

Boomerang is a tool, typically constructed as a flat airfoil, that is designed to spin about an axis perpendicular to the direction of its flight. A boomerang is usually made of wood, plastic, or composite materials and is known for its ability to return to the thrower when thrown correctly. The origins of the boomerang are closely associated with the indigenous peoples of Australia, although similar devices have been found in many parts of the world, including Europe and North America, dating back thousands of years.

History

The oldest Australian Aboriginal boomerangs are thought to be over 10,000 years old, but older hunting sticks, which are similar in design but do not return, have been found in other parts of the world, such as Poland. These ancient tools were used for hunting and warfare, demonstrating the boomerang's utility beyond recreational activity. The returning boomerang is a more recent development, used primarily for sport and entertainment, and is considered a symbol of Australian Aboriginal culture.

Design and Operation

The boomerang's unique flight characteristics arise from its two wings, which are set at a slight angle to each other (known as dihedral angle) and its airfoil-shaped cross-section. When thrown with the correct technique, a boomerang will travel in a curved path, returning to the point of origin. The physics of the boomerang's flight are complex, involving aerodynamic lift and gyroscopic precession.

Types of Boomerangs

There are two main types of boomerangs: the traditional returning boomerang and the non-returning boomerang. Non-returning boomerangs, often used for hunting, are designed to travel in a straight path to hit a target. Returning boomerangs, which are more widely recognized, are used in sport and as toys.

Returning Boomerangs

Returning boomerangs are further categorized by their number of wings (most have two or three) and their intended use, such as distance, accuracy, or trick catches. These boomerangs are popular in competitive sports, with numerous competitions held worldwide.

Non-returning Boomerangs

Non-returning boomerangs, or throwsticks, have been used by indigenous peoples for hunting. These boomerangs are heavier and larger than their returning counterparts and are designed to travel a straight path to maximize impact on the target.

Cultural Significance

In Australian Aboriginal culture, the boomerang is a significant symbol, representing ingenuity and survival. It is used in various ceremonies and is a subject of cultural artwork and stories. The boomerang also holds a place in popular culture, often associated with Australia and adventure.

Modern Uses

Today, boomerangs are used in competitive sports, recreational activities, and as educational tools to teach principles of physics and aerodynamics. They have also inspired modern technology, such as certain types of drones that utilize similar aerodynamic principles for flight.

See Also

• Aerodynamics
• Indigenous peoples of Australia
• Hunting weapon