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A pair of standard, large scissors

Scissors are hand-operated cutting instruments. They consist of a pair of metal blades pivoted so that the sharpened edges slide against each other when the handles (bows) opposite to the pivot are closed. Scissors are used for cutting various thin materials, such as paper, cardboard, metal foil, thin plastic, cloth, rope, and wire. Scissors can also be used to cut hair and food. Scissors and shears are functionally equivalent, but larger implements tend to be called shears.

There are many types of scissors and shears for different purposes. For example, children's scissors, used only on paper, have dull blades and rounded corners to ensure safety. Scissors used to cut hair or fabric must be much sharper. The largest shears used to cut metal or to trim shrubs must have very strong, sharp blades.

Specialized scissors include sewing scissors, which often have one sharp point and one blunt point for intricate cutting of fabric, and nail scissors, which sometimes have curved blades for cutting fingernails and toenails.

Special kinds of shears include pinking shears, which have notched blades that cut cloth to give it a wavy edge, and thinning shears, which have teeth that cut every second hair strand, rather than every strand giving the illusion of thinner hair.

Terminology[link]

The noun "scissors" is treated as a plural noun, and therefore takes a plural verb ("these scissors are"). Alternatively, this tool is also referred to as "a pair of scissors", in which case it (a pair) is singular and therefore takes a singular verb ("this pair of scissors is").

The word shears is used to describe similar instruments that are larger in size and for heavier cutting. Geographical opinions vary as to the size at which 'scissors' become 'shears', but this is often at between six to eight inches in length.

History[link]

Scissors from 2nd century Asia Minor

It is most likely that scissors were invented around 1500 BC in ancient Egypt.^[1] The earliest known scissors appeared in Mesopotamia 3,000 to 4,000 years ago. These were of the 'spring scissor' type comprising two bronze blades connected at the handles by a thin, flexible strip of curved bronze which served to hold the blades in alignment, to allow them to be squeezed together, and to pull them apart when released.

Spring scissors continued to be used in Europe until the sixteenth century. However, pivoted scissors of bronze or iron, in which the blades were pivoted at a point between the tips and the handles, the direct ancestor of modern scissors, were invented by the Romans around AD 100.^[2] They entered common use not only in ancient Rome, but also in China, Japan, and Korea, and the idea is still used in almost all modern scissors.

Early manufacture[link]

During the Middle Ages and Renaissance, spring scissors were made by heating a bar of iron or steel, then flattening and shaping its ends into blades on an anvil. The center of the bar was heated, bent to form the spring, then cooled and reheated to make it flexible.

William Whiteley & Sons (Sheffield) Ltd. is officially recognized as first starting the manufacture of scissors in the year 1760, although it is believed the business began trading even earlier. The first trade-mark, 332, was granted in 1791.^{[citation needed]}

Pivoted scissors were not manufactured in large numbers until 1761, when Robert Hinchliffe produced the first pair of modern-day scissors made of hardened and polished cast steel. He lived in Cheney Square, London and was reputed to be the first person who put out a signboard proclaiming himself "fine scissor manufacturer".^[3]

During the nineteenth century, scissors were hand-forged with elaborately decorated handles. They were made by hammering steel on indented surfaces known as bosses to form the blades. The rings in the handles, known as bows, were made by punching a hole in the steel and enlarging it with the pointed end of an anvil.

In 1649, in a part of Sweden that is now in Finland, an ironworks was founded in the "Fiskars" hamlet between Helsinki and Turku. In 1830, a new owner started the first cutlery works in Finland, making, among other items, scissors with the Fiskars trademark. In 1967, Fiskars Corporation introduced new methods to scissors manufacturing.^[4]

Description and operation[link]

A pair of scissors consists of two pivoted blades. In lower quality scissors the cutting edges are not particularly sharp; it is primarily the shearing action between the two blades that cuts the material. In high quality scissors the blades can be both extremely sharp, and tension sprung - to increase the cutting and shearing tension only at the exact point where the blades meet. The hand movement (pushing with the thumb, pulling with the fingers in right handed use) can add to this tension. An ideal example is in high quality tailors scissors or shears, which need to be able perfectly cut (and not simply tear apart) delicate cloths such as chiffon and silk.

Children's scissors are usually not particularly sharp, and the tips of the blades are often blunted or 'rounded' for safety.

Mechanically, scissors are a first-class double-lever with the pivot acting as the fulcrum. For cutting thick or heavy material, the mechanical advantage of a lever can be exploited by placing the material to be cut as close to the fulcrum as possible. For example, if the applied force (at the handles) is twice as far away from the fulcrum as the cutting location (i.e., the point of contact between the blades), the force at the cutting location is twice that of the applied force at the handles. Scissors cut material by applying a local shear stress at the cutting location which exceeds the material's shear strength.

For people who do not have the use of their hands, there are specially designed foot operated scissors. Some quadriplegics can use a motorized mouth-operated style of scissor.

Kitchen scissors[link]

A pair of kitchen scissors

Kitchen scissors, also known as kitchen shears, are traditionally used in the kitchen for food preparation, although due to their tough nature they can serve many other purposes. In modern times they are often made from stainless steel (for food hygiene and oxidization-resistance reasons). They often have kitchen functionality (other than cutting) incorporated, such as bottle-cap and bottle-openers built into the handles.^[5]

Handed scissors[link]

left-handed (left) and right-handed (right) scissors

Most scissors are best-suited for use with the right hand, but left-handed scissors are designed for use with the left hand. Because scissors have overlapping blades, they are not symmetric. This asymmetry is true regardless of the orientation and shape of the handles: the blade that is on top always forms the same diagonal regardless of orientation. Human hands are also asymmetric, and when closing, the thumb and fingers do not close vertically, but have a lateral component to the motion. Specifically, the thumb pushes out and fingers pull inwards. For right-handed scissors held in the right hand, the thumb blade is further from the user's body, so that the natural tendency of the right hand is to force the cutting blades together. Conversely, if right-handed scissors are held in the left hand, the natural tendency of the left hand would be to force the cutting blades laterally apart. Furthermore, with right-handed scissors held by the right-hand, the shearing edge is visible, but when used with the left hand, the cutting edge of the scissors is behind the top blade, and one cannot see what is being cut.

Some scissors are marketed as ambidextrous. These have symmetric handles so there is no distinction between the thumb and finger handles, and have very strong pivots so that the blades simply rotate and do not have any lateral give. However, most "ambidextrous" scissors are in fact still right-handed in that the upper blade is on the right, and hence is on the outside when held in the right hand. Even if they successfully cut, the blade orientation will block the view of the cutting line for a left-handed person. True ambidextrous scissors are possible if the blades are double-edged and one handle is swung all the way around (to almost 360 degrees) so that the back of the blades become the new cutting edges. Patents (U.S. Patent 3,978,584) have been awarded for true ambidextrous scissors.

Specialized scissors[link]

Among specialized scissors and shears used for different purposes are:

• Agriculture and animal husbandry
  • Grass and hedge shears are used for trimming grass and hedges.
  • Pruning shears (secateurs) and loppers are gardening scissors for cutting through branches of trees and shrubs.
  • Sheep shears and machine shears are used for cutting an animal's fleece to make wool.
• General domestic use
  • Kitchen scissors are for general-purpose kitchen use
  • Nail scissors, for cutting finger- and toenails
  • Poultry shears are used to cut cooked poultry.
  • Specialized scissors with concave blade edges have been designed for use as a cigar cutter.
• Hair care
  • Thinning scissors are used for thinning thick hair to avoid a bushy look
  • Hair clippers – for cutting hair by barbers, hairdressers, and pet groomers. Functionally like several small pairs of scissors side-by-side, operated by a single handle or a motor.
• Metalwork
  • Jaws of Life are hydraulic rescue tools for cutting heavy sheet metal.
  • Throatless shears are used for cutting complex shapes in sheet metal.
  • Tin snips are scissors for cutting through sheet metal.
• Trauma shears, or "tuff cuts", are robust scissors used in emergency medical response and rescue.
• Sewing and clothes-making
  • Pinking shears are scissors with a serrated cutting edge for cutting cloth so that the fabric does not fray.
  • Sewing Chatelaine Scissors. Chatelaine is a French term meaning "mistress of a castle, chateau or stately home", and dates back to the Middle Ages. It refers to an ornamental clasp or hook from which chains were hung from the waist, holding perhaps, a purse, watch, keys, scissors or thimble case. The sewing chatelaine became a popular ornamental appendage worn by Victorian ladies at their waist, but disappeared when fashion changed and skirts were no longer full and long. Sewing chatelaines are now produced and worn as pendants around the neck.
• Ceremonial
  • Ceremonial Scissors are scissors used, and often presented for, ceremonial ribbon-cutting events such as building openings etc.^[6]

Culture[link]

Due to their ubiquity across cultures and classes, scissors have numerous representations across world culture.

Art[link]

It must be noted that numerous forms of art worldwide enlist scissors as a tool/material with which to accomplish the art; in this section, we will be looking at cases where scissors appear in or are represented by the final art product.

Film[link]

• Edward Scissorhands is a 1990 film starring Johnny Depp as a young man who has hands made of multiple pairs of scissors.
• Running with Scissors is a 2006 film based on the memoir of the same title.

Games[link]

The game Rock-Paper-Scissors involves two or more players making shapes with their hands to determine the outcome of the game. One of the three shapes, 'scissors', is made by extending the index and middle fingers to mimic the shape of most scissors.

Literature[link]

Augusten Burroughs' 2002 memoir Running with Scissors spent eight weeks on the New York Times best seller list. The book was later adapted into a film.

Music[link]

• Running with Scissors is the title of a 1999 album by "Weird Al" Yankovic.
• The song "The Tailor Shop on Enbizaka (円尾坂の仕立屋 Enbizaka no Shitateya)" from Vocaloid producer Akuno-P tells a story about a tailor that kills a man, his wife and their two daughters using her Sewing Scissors.

Sport[link]

The term 'scissor kick' may be found in several sports, including:

• Scissor kick (strike), a generic martial arts term for any of a number of moves that may resemble the appearance or action of a pair of scissors.
• Bicycle kicks in football are sometimes known as 'scissor kicks'.
• Swimming strokes including the sidestroke incorporate a leg movement often known as a 'scissor kick'.

Superstition[link]

Scissors have a widespread place in cultural superstitions. In many cases, the specifics of the superstition may be specific to a given country, region, tribe, religion or even situation.

• Africa
  • In parts of North Africa, it was held that scissors could be used to curse a bridegroom. When the bridegroom was on horseback, the person enacting the curse would stand behind him with the scissors open and call his name. If the bridegroom answered to his name being called, the scissors would then be snapped shut and the bridegroom would be unable to consummate his marriage with his bride.^[7]
• Asia
  • In Pakistan, some believe that scissors should never be idly opened and closed without purpose. This is believed to cause bad luck.^[8]
• North America
  • United States
    • In New Orleans, some believed that putting an open pair of scissors underneath your pillow at night was a sound method for sleeping well, even if one might be cursed.^[9]
• Eastern Europe
  • It is believed in some Eastern Europe countries that leaving scissors open causes fights and disagreement within a household.

Science[link]

Scissors have been used in the sciences for various purposes, including descriptions of animals or natural features.

Nature[link]

Animals named after scissors include:

• Birds
  • The Scissor-tailed Flycatcher of North and Central America.
  • The Scissor-tailed Hummingbird
  • The Scissor-tailed Kite, a bird that is widespread throughout Africa.
  • The Scissor-tailed Nightjar of South America.
• Fish
  • The Scissor-tail rasbora, a species of fish that is commonly used for freshwater aquariums.^[10][11]

Scissors gallery[link]

• 

  Scissors from the Chinese Tang dynasty (618–907 AD)

• 

  A pair of iron scissors dating from the Han Dynasty

• 

  Fiskars scissors 1967

• 

  General purpose scissors

• 

  A pair of shears

• 

  Stork Chatelaine scissors

• Mustache Scissors.jpg

  Mustache scissors

• 

  ten pairs of scissors

See also[link]

• Hemostat resembles a pair of scissors, but is used as a clamp in surgery and does not cut at all.
• Nippers cut small pieces out of tile.
• Pliers used for holding and crimping metal or wire.

References[link]

Wikimedia Commons has media related to: Scissors

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