Definitions for spear-thrower
spear-throw·er

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1. Spear-thrower

   A spear-thrower, spear-throwing lever or atlatl (pronounced or ; Nahuatl ahtlatl [ˈaʔt͡ɬat͡ɬ]) is a tool that uses leverage to achieve greater velocity in dart or javelin-throwing, and includes a bearing surface which allows the user to store energy during the throw. It may consist of a shaft with a cup or a spur at the end that supports and propels the butt of the spear. It's usually about as long as the user's arm or forearm. The user holds the spear-thrower in one hand, gripping near the end farthest from the cup. The user puts the butt end of the spear, or dart, in the cup, or grabs the spur with the end of the spear. The spear is much longer than the thrower. The user holds the spear parallel to the spear-thrower and going in the other direction. The user can hold the spear, with the index and thumb, with the same hand as the thrower, with the other fingers. The user reaches back with the spear pointed at the target. Then they make an overhand throwing motion with the thrower while letting go of the spear with the fingers.The dart is thrown by the action of the upper arm and wrist. The throwing arm together with the atlatl acts as a lever. The spear-thrower is a low-mass, fast-moving extension of the throwing arm, increasing the length of the lever. This extra length allows the thrower to impart force to the dart over a longer distance, thus imparting more energy and higher speeds.Common modern ball throwers (such as molded plastic arms used for throwing tennis balls for dogs to fetch) use the same principle. A spear-thrower is a long-range weapon and can readily impart to a projectile speeds of over 150 km/h (93 mph).Spear-throwers appear very early in human history in several parts of the world, and have survived in use in traditional societies until the present day, as well as being revived in recent years for sporting purposes. In the United States, the Nahuatl word atlatl is often used for revived uses of spear-throwers (or the Mayan word hul'che); in Australia, the Dharug word woomera is used instead. The ancient Greeks and Romans used a leather thong or loop, known as an ankule or amentum, as a spear-throwing device. The Swiss arrow is a weapon that works similarly to amentum.

WikidataRate this definition:0.0 / 0 votes

1. Spear-thrower

   A spear-thrower or atlatl is a tool that uses leverage to achieve greater velocity in dart-throwing, and includes a bearing surface which allows the user to temporarily store energy during the throw. It may consist of a shaft with a cup or a spur at the end that supports and propels the butt of the dart. The spear-thrower is held in one hand, gripped near the end farthest from the cup. The dart is thrown by the action of the upper arm and wrist. The throwing arm together with the atlatl acts as a lever. The spear-thrower is a low-mass, fast-moving extension of the throwing arm, increasing the length of the lever. This extra length allows the thrower to impart force to the dart over a longer distance, thus imparting more energy and ultimately higher speeds. Common modern ball throwers use the same principle. A spear-thrower is a long-range weapon and can readily impart to a projectile speeds of over 150 km/h. Spear-throwers appear very early in human history in several parts of the world, and have survived in use in traditional societies until the present day, as well as being revived in recent years for sporting purposes. In the United States the Aztec word 'atlatl' is often used for revived uses of spear-throwers, and in Australia the Aboriginal word woomera.

How to pronounce spear-thrower?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say spear-thrower in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of spear-thrower in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of spear-thrower in Pythagorean Numerology is: 4

References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Spear-Thrower
2. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=spear-thrower