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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.
A large variety of scissors and shears exist for different specialized purposes.
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 American English, "a pair" is singular and therefore takes a singular verb ("this pair of scissors is"). In British English, "a pair" does not take the singular ("this pair of scissors are"). The word shears is used to describe similar instruments that are larger in size and for heavier cutting. Opinions vary geographically as to the size at which 'scissors' become 'shears', but this is often at between six to eight inches (about 15 to 20 cm) in length.
It is most likely that scissors were invented around 1500 BC in ancient Egypt. 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 16th 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 100. 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 
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.
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".
During the 19th 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 Swedish-ruled Finland, an ironworks was founded in the village of Fiskars 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.
Description and operation 
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 tailor's scissors or shears, which need to be able to 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.
Handed 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 from the palm and the fingers pull inwards. For right-handed scissors held in the right hand, the thumb blade is closer to 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 
Among specialized scissors and shears used for different purposes are:
Agriculture and animal husbandry 
- Hedge trimmers, for trimming hedges
- Grass shears, for trimming grass
- Averruncators, for trimming high branches
- Pruning shears or secateurs, for trimming small branches
- Loppers, for cutting through large branches
- Blade shears, for cutting an animal's fleece to make wool
Food and drug 
- Kitchen scissors or kitchen shears, for food preparation, but often used for a variety of other purposes. In modern times, kitchen scissors are usually 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.
- Poultry shears, to cut cooked poultry
- Cigar cutter, specialized scissors with concave blade edges to cut cigars
- Hair clippers, for cutting hair by barbers, hairdressers, and pet groomers
- Thinning scissors, for thinning thick hair to avoid a bushy look
- Nail scissors, for cutting finger- and toenails
- Moustache scissors, for trimming moustaches
- Snips, for cutting through sheet metal.
- Tinner snips
- Compound action snips
- Pipe and duct snips
- Hydraulic cutters, for cutting heavy sheet metal, often in traffic collisions. Sometimes referred to by the genericized trademark "Jaws of Life".
- Throatless shears, for cutting complex shapes in sheet metal
- Trauma shears, or "tuff cuts", for use in emergency medical response and rescue. The rounded tips are designed to slide across human flesh without harm allowing quick removal of clothing
- Dissection scissors, for cutting flesh in dissection
- Surgical scissors, for cutting flesh in surgery
- Bandage scissors, for cutting bandages
Sewing and clothes-making 
- Pinking shears, for cutting cloth and producing a serrated edge 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.
Scissors gallery 
Scissors from the Chinese Tang dynasty (618–907)
A pair of iron scissors dating from the Han Dynasty
Due to their ubiquity across cultures and classes, scissors have numerous representations across world culture.
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.
- 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.
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.
- 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 ul.nklBold textsing her Sewing Scissors.
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'.
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.
- 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.
- In Pakistan, some believe that scissors should never be idly opened and closed without purpose. This is believed to cause bad luck.
- North America
- Eastern Europe
- It is believed in some Eastern European countries that leaving scissors open causes fights and disagreement within a household.
- It is believed in China that giving scissors to a friend or loved ones is to be cutting ties with them.
Scissors have been used in the sciences for various purposes, including descriptions of animals or natural features.
Animals named after scissors include:
See also 
- 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.
|Wikimedia Commons has media related to: Scissors|
- Who Invented Scissors
- Zoom Inventors and Inventions
- REMINISCENCES OP SHEFFIELD[dead link]
- [dead link]
- "Ernest Wright and Son Ltd Scissors : Kitchen Scissors > Kitchen Scissors Traditional Design 7 inch". Ernestwright.co.uk. Retrieved 2012-02-28.
- "Ernest Wright and Son Ltd Scissors : Ceremonial, Presentation & Gift > Gold Ribbon Cutting Ceremonial Scissors". Ernestwright.co.uk. Retrieved 2012-02-28.
- Encyclopedia of Superstitions 1949 - Edwin Radford, Mona A. Radford - Google Boeken. Books.google.com. Retrieved 2012-02-28.
- DJPianz (2011-05-04). "Superstitions around the world: Pakistan - Scissors". Worldsuperstitions.blogspot.com. Retrieved 2012-02-28.
- "NEW ORLEANS SUPERSTITIONS (1886) by Lafcadio Hearn". Sacred-texts.com. Retrieved 2012-02-28.
- Aquaticcommunity. "Scissortail - Rasbora trilineata". Aquaticcommunity.com. Retrieved 2012-02-28.
- "Scissor Tail Rasbora - Rasbora trilineata". Fishlore.com. Retrieved 2012-02-28.