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slingshot

 
Dictionary: sling·shot   (slĭng'shŏt') pronunciation
n.
A Y-shaped stick having an elastic strap attached to the prongs, used for flinging small stones.


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Philosophy Dictionary: slingshot
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The argument sometimes known as the Frege-Church argument that if a context is such that co-referring singular terms (names or descriptions) can be substituted for each other salva veritate, then sentences with the same truth-value can also be so substituted. This justifies semantic theory in holding that the reference of a sentence is its truth-value rather than anything more ‘fine-grained’ such as a situation or state of affairs. The argument works by manufacturing a definite description from a sentence, and substituting a co-referring definite description with another sentence of the same truth-value in it. Suppose two propositions p, q with the same truth-value. Then from ‘p’ we derive ‘(the number x such that 2x = 6 & p) = 3’; substituting for the referring term in parentheses we have ‘(the number x such that 2x = 6 & q) = 3’ from which we derive q. The attribution to Frege, based on some remarks in ‘On Sense and Reference’, is doubtful. The slingshot has been endorsed by many logicians, although a defence against it is provided if definite descriptions are treated not as themselves being referring expressions or names, but in accordance with Russell's theory of definite descriptions.

Wikipedia: Slingshot
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Simple slingshot

A slingshot (also sometimes called a shanghai, and in Britain a Flingy or katty) is a small hand-powered projectile weapon. The forked Y-shaped frame has two rubber strips attached to the uprights, leading back to a pocket for holding the projectile.

It is normally fired by holding the frame in the non-dominant hand, extended at arms length. The pocket is then gripped between thumb and forefinger of the dominant hand, pulled back to near the cheek, aimed and the pocket released to fire the projectile toward the target.

Home-made slingshots were popular childrens' toys for much of the 20th century because the low projectile velocity was generally considered to be safe. However, it is possible to construct a slingshot with sufficient power to cause true bodily harm.


Contents

Construction and use

Although the simple forked stick and rubber models are still made by children and adults, there are now a range of commercial models, some sophisticated and powerful. There are many professional catapult makers in the UK, and many people collect them. Custom catapults are made from various materials: buffalo horn, deer antler, exotic hardwoods, micarta, bra, and precious metals. Often these metal forks are dressed with 'scales': sides, as on knives.

Custom-made catapults are sometimes made in the style of the famous MILBRO catapult of the 1950s. Original migro forks can, and often do, sell for in excess of £40.00. Custom versions may sell for in excess of £100.00

Many types of rubber are used, but there are three main varieties: square, tube, and flatbeds. Among the makes of flatbed material are linatex, theraband and latex. These materials were designed for various medical and industrial uses and have been adapted for catapult use. Usually, the flat band material is tapered from 3/4" to 1/2", and about 5" long.

Many powerful commercial slingshots now have a wrist-brace, and some models have stabilizers, rotating prongs, sighting mechanisms, and other sophisticated improvements. While these are not necessary they usually improve accuracy, and the power and lifespan of the bands.

Slingshot made with rubber

The elastic material is critical. The best widely-available materials are dipped latex rubber, surgical tubing, and latex sheeting, which last about six months before they need to be replaced. They can be attached to the frame and packet by stretching them over a metal rod of the correct diameter. Some slingshots are constructed of metal tubing. Rubbers should be stored under water - away from sunlight, which causes them to stiffen and crack.

A slingshot champion appearing on the David Letterman Show[citation needed] recommended holding the projectile pocket at a fixed position near the body, such as the hip, and moving the frame, guided by instinct and practice, like a gunslinger or hip-shooter in the American Wild West. Many gunslingers could hit a target without raising their weapon to eye level.

The most common slingshot is made of wood and rubber and vinyl tubing. Usually, it has a leather pouch, in which the projectile is placed.

Hunting

A sling can be powerful enough to hunt game such as small rodents and birds at ranges up to 25 meters. A typical heavy pull band slingshot should be used with 9 mm (3/8") to 12 mm (1/2") steel balls. Using lighter ammunition doesn't increase the speed of the projectile significantly.

In the UK where there is a strong following of hunting with catapults, a variety of game is taken amongst them hares, rabbits, pheasants, geese, ducks, pigeon, dove, rook, and all manner of other species. Usually expert catapult hunters use lead ball projectiles often sized at .44 and .50 calibre which mostly they cast themselves using musket ball moulds.

Sport

Slingshots may also be used in recreational paintball games as backup or silent sniper weapon (Slingshot paintball). Even though the average speed and distance of a slingshot is slightly less than that of a paintball gun, some paintball playing fields may not allow them.

Business Applications

Slingshots are also used by arborists and tree workers to place lines high in trees. The most common such device is the "Big Shot" made by Sherrill Tree Company. This slingshot is roughly six feet (2 meters) tall and is used to launch small weighted bags attached to a line.

Military Use

Slingshots have been used as a military weapon, primarily by guerrilla forces due to the primitive resources and ease used to construct one. Such guerrilla groups included the Irish Republican Army; prior to the 2003 invasion of Iraq, Saddam Hussein released a propaganda video demonstrating slingshots as a possible weapon for insurgents to use against invading forces.[1]

In popular culture

  • In the anime/manga series One Piece, one of the main characters, Usopp, uses a slingshot.
  • In EarthBound the slingshot is an equipable weapon for every party member except Poo.
  • Slingshots are frequently depicted as the favored weapons of monkeywrenchers for the ability to use improvised ammunition like stones and bolts to destroy sensitive equipment.
  • One of the few depictions of slingshots as a serious military weapon was featured in a segment of Deadliest Warrior as IRA experts demonstrated its tactical effectiveness.

See also

References

External links

internet forums with catapult/slingshot content:

www.slingshots.myfreeforum.org www.jacksshed.co.uk http://hunterworld.co.uk

video links

http://www.youtube.com/watch?v=ztpBkviDKIw

http://www.youtube.com/user/JoergSprave#play/uploads/1/N3eVzUIQZ2g

http://www.youtube.com/watch?v=_zeQO7ObhoQ


Translations: Slingshot
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Dansk (Danish)
n. - slangebøsse
v. tr. - skyde med slangebøsse
v. intr. - øge hastigheden vha. tyngdekraften

Nederlands (Dutch)
katapult

Français (French)
n. - lance-pierres
v. tr. - faire accélérer considérablement grâce à l'action de la pesanteur
v. intr. - accélérer considérablement grâce à l'action de la pesanteur

Deutsch (German)
n. - Schleuder, Zwille
v. - katapultieren

Ελληνική (Greek)
n. - (ΗΠΑ) σφεντόνα

Italiano (Italian)
fionda

Português (Portuguese)
n. - estilingue (m), atiradeira (f), funda (f), bodoque (m)

Русский (Russian)
рогатка, рывок автомобили (на гонках), гоночная машина с сидением водителя, вынесенным за задние колеса

Español (Spanish)
n. - catapulta, tirador, tiragomas, honda

Svenska (Swedish)
n. - slangbåge, slangbössa, slunga

中文(简体)(Chinese (Simplified))
弹弓, 玩弹弓, 快速超前

中文(繁體)(Chinese (Traditional))
n. - 彈弓
v. tr. - 玩彈弓
v. intr. - 快速超前

한국어 (Korean)
n. - (고무줄) 새총, (경주에서) 자동차의 추월, 뒷바퀴 뒤쪽에 좌석이 있는 레이싱 카
v. tr. - 억지로 가속하다, 중력으로 가속하다
v. intr. - 억지로 가속하게 되다, 중력으로 가속되다

日本語 (Japanese)
n. - ぱちんこ

العربيه (Arabic)
‏(الاسم) مقلاع, عود على شكل حرف Y تشد اليه قطعه مطاط لقذف ألحصى‏

עברית (Hebrew)
n. - ‮מקלעת, קלע‬
v. tr., - ‮קלע במקלעת, האיץ בחוזקה או גרם לתאוצה באמצעות השימוש בכוח הכבידה‬


 
 
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Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.  Read more
Philosophy Dictionary. The Oxford Dictionary of Philosophy. Copyright © 1994, 1996, 2005 by Oxford University Press. All rights reserved.  Read more
Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "Slingshot" Read more
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