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Crossbow
A crossbow is a ranged weapon using an Elasticity (physics), elastic launching device consisting of a Bow and arrow, bow-like assembly called a ''prod'', mounted horizontally on a main frame called a ''tiller'', which is hand-held in a similar fashion to the stock (firearms), stock of a long gun. Crossbows shoot arrow-like projectiles called ''crossbow bolt, bolts'' or ''quarrels''. A person who shoots crossbow is called a ''crossbowman'', an ''arbalister'' or an ''arbalist (crossbowman), arbalist'' (after the arbalest, a European crossbow variant used during the 12th century). Crossbows and bows use the same elastic launch principles, but differ in that an archer using a Bow and arrow, bow must draw-and-shoot in a quick and smooth motion with limited or no time for aiming, while a crossbow's design allows it to be spanned and cocked ready for use at a later time and thus affording them unlimited time to aim. When shooting bows, the archer must fully perform the bow draw, draw, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arbalist (crossbowman)
An arbalist, also spelled arbelist, is one who shoots a crossbow. Background An extensive list of archaic words for medieval crossbowmen is given by Payne-Gallwey. Richardson, in his 1839 dictionary, did not make specific reference to the crossbow in his definition of arbalist: "One who casts or shoots from a bow." Hansard (1841) used the word ''arbalister'' for a cross-bowman (sic), the same usage as Webster and Johnson who reserved the word arbalist for the crossbow itself. Smith uses arbalist to describe a ''maker'' of crossbows. Equipment and competition Modern arbalists shoot crossbows markedly different from medieval artillerymen. Current-day target crossbows must conform to various limitations according to the governing body under which the shoot or tournament is taking place. Firstly, GNAS requires that arbalists shoot at targets separate from archers. Both the World Crossbow Shooting Association (WCSA) and GNAS require that the draw weight maximum be 95 lbs and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arbalest
The arbalest (also arblast), a variation of the crossbow, came into use in Europe around the 12th century. The arbalest was a large weapon with a steel prod, or bow assembly. Since the arbalest was much larger than earlier crossbows, and because of the greater tensile strength of steel, it had a greater force. The greater draw weight was offset by a shorter draw length, which limited the total potential energy that could be transferred into the crossbow bolt. A skilled arbalestier (arbalester) could loose two bolts per minute. Nomenclature The term "arbalest" is sometimes used interchangeably with "crossbow". ''Arbalest'' is a Old French, Medieval French word originating from the Roman name ' (from ' 'bow' + ' 'missile-throwing engine'), (arbalist, arblast) which was then used for crossbows, although originally used for types of artillery. French language, Modern French uses the word ', which is linguistically one step further from the stem, due to the disappearance of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shooting Sport
Shooting sports is a group of competitive and recreational sporting activities involving proficiency tests of accuracy, precision and speed in shooting — the art of using ranged weapons, mainly small arms (firearms and airguns, in forms such as handguns, rifles and shotguns) and bows/crossbows. Shooting sports can be categorized by equipment, shooting distances, targets, time limits and degrees of athleticism involved. Shooting sports may involve both team and individual competition, and team performance is usually assessed by summing the scores of the individual team members. Due to the noise of shooting and the high (and often lethal) impact energy of the projectiles, shooting sports are typically conducted at either designated permanent shooting ranges or temporary shooting fields in the area away from settlements. History Great Britain The National Rifle Association (NRA) was founded in 1859 to raise the funds for an annual national rifle meeting "for the encourag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crossbow Bolt
A bolt or quarrel is a dart-like projectile used by crossbows. The word ''quarrel'' is from the Old French ''quarrel'' (> French ''carreau'') "square thing", specialized use as ''quarrel d'arcbaleste'' (> ''carreau d'arbalète'') "crossbow quarrel", referring to their typically square heads. Although their lengths vary, bolts are typically shorter and heavier than traditional arrows shot with longbows. Parts of the bolt Point The point, also called the ''head'' or the ''tip'', is the pointed and weighted front end of the bolt, which is sharp and hard so that it can penetrate the target. Shaft The shaft is the main body of the bolt to which other parts of the bolt are attached. In modern times it is normally made of carbon fibre or aluminium alloy (or sometimes both aluminum and carbon fibre are used), and is very lightweight for its strength. Shafts come with varying degrees of stiffness — referred to as the " spine" of the bolt. The more resistant to bending a bolt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ballista
The ballista (Latin, from Ancient Greek, Greek βαλλίστρα ''ballistra'' and that from βάλλω ''ballō'', "throw"), plural ballistae or ballistas, sometimes called bolt thrower, was an Classical antiquity, ancient missile weapon that launched either Crossbow_bolt, bolts or stones at a distant target. Developed from earlier Greek weapons, it relied upon different mechanics, using two levers with torsion springs instead of a tension prod (the bow part of a modern crossbow). The springs consisted of several loops of twisted Hank (textile), skeins. Early versions projected heavy dart (missile), darts or spherical stone projectiles of various sizes for siege warfare. It developed into a smaller precision weapon, the ''Scorpio (weapon), scorpio'', and possibly the ''polybolos''. Greek weapon The early ballistae in Ancient Greece were developed from two weapons called oxybeles and gastraphetes. The gastraphetes ('belly-bow') was a handheld crossbow. It had a composite p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Science And Technology In China
Ancient Han Chinese, Chinese scientists and engineers made significant scientific innovations, findings and technological advances across various scientific disciplines including the natural sciences, engineering, medicine, military technology, mathematics, geology and astronomy. Among the earliest List of Chinese inventions, inventions were the abacus, the sundial, and the Kongming lantern. The ''Four Great Inventions'' – the compass, gunpowder, papermaking, and printing – were among the most important technological advances, only known to Europe by the end of the Middle Ages 1000 years later. The Tang dynasty (AD 618–906) in particular was a time of great innovation. A good deal of exchange occurred between Western and List of Chinese discoveries, Chinese discoveries up to the Qing dynasty. The Jesuit China missions of the 16th and 17th centuries introduced Western science and astronomy, while undergoing its own Scientific Revolution, scientific revolution, at the same ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Archery Terms
This is a list of archery terms, including both the equipment and the practice. A brief description for each word or phrase is also included. __NOTOC__ 0–9 * 3D (practice) – A type of field archery in which the targets are 3-dimensional representations of animals. Also rendered as "3-D". A *anchor point – A point to be touched by the draw hand or string when the bow is fully drawn and ready to shoot, usually a point on the archer's mouth, chin, jaw, or nose * AMO (organization) – The Archery Manufacturers and Merchants Organization (now known as the Archery Trade Association, or ''ATA'') * AMO length (measure) – A standardized length for measuring bow strings *arbalest – A late variation of the crossbow that came into use in Europe during the 12th century * archer (practitioner) – One who practices archery (a.k.a. ''bowman'') * archer's paradox (effect) – The effect produced by an arrow flexing as it leaves the bow *archery (practice) – The practice of us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trigger (firearms)
A trigger is a mechanism (engineering), mechanism that Actuator, actuates the function of a ranged weapon such as a firearm, airgun, crossbow, or speargun. The word may also be used to describe a switch that initiates the operation of other non-shooting devices such as a animal trap, trap, a power tool, or a quick release. A small amount of energy applied to the trigger leads to the release of much more energy. Most triggers use a small flat or slightly curved lever (called the ''trigger blade'') depressed by the index finger, but some weapons such as the M2 Browning machine gun or the Iron Horse TOR ("thumb-operated receiver") use a push-button-like thumb-actuated trigger design, and others like the Springfield Armory M6 Scout use a squeeze-bar trigger similar to the "ticklers" on crossbow#Medieval Europe, medieval European crossbows. Although the word "trigger" technically implies the entire mechanism (known as the ''trigger group''), colloquially it is usually used to refer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Projectile
A projectile is an object that is propelled by the application of an external force and then moves freely under the influence of gravity and air resistance. Although any objects in motion through space are projectiles, they are commonly found in warfare and sports (for example, a thrown baseball, kicked football, fired bullet, shot arrow, stone released from catapult). In ballistics, mathematical equations of motion are used to analyze projectile trajectories through launch, flight, and impact. Motive force Blowguns and pneumatic rifles use compressed gases, while most other guns and cannons utilize expanding gases liberated by sudden chemical reactions by propellants like smokeless powder. Light-gas guns use a combination of these mechanisms. Railguns utilize electromagnetic fields to provide acceleration along the entire length of the device, greatly increasing the muzzle velocity. Some projectiles provide propulsion during flight by means of a rocket ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
War Of The Heavenly Horses
The War of the Heavenly Horses () or the Han–Dayuan War () was a military conflict fought in 104 BC and 102 BC between the Chinese Han dynasty and the Saka-ruled (Scythian) Greco-Bactrian kingdom known to the Chinese as Dayuan, in the Ferghana Valley at the easternmost end of the former Persian Empire (between modern-day Uzbekistan, Kyrgyzstan and Tajikistan). The war was allegedly instigated by trade disputes compounded by the extended geopolitics surrounding the Han-Xiongnu War, resulting in two Han expeditions that eventuated in a Han victory, allowing Han China to expand its hegemony deep into Central Asia (then known to the Chinese as the Western Regions). Reprinted as an advertisement feature: Emperor Wu of Han had received reports from diplomat Zhang Qian that Dayuan owned fast and powerful Ferghana horses known as the "heavenly horses", which would help greatly with improving the quality of their cavalry mounts when fighting the Xiongnu horse nomads, so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
