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98-521: In 1951, the company's top-of-the-line "Chemcraft Master Laboratory" set retailed for $ 27.50 ($ equivalent to $ 323 in 2023) and contained, among other things, radioactive Uranium ore. At the peak of its success, Porter Chemical Company was the biggest user of test tubes in the USA. The company produced over a million sets before increasing consumer liability concerns led to its demise in the 1980s. This United States manufacturing company–related article

196-738: A Filipino immigrant to the United States, opened the Yo-yo Manufacturing Company in Santa Barbara, California . The business started with a dozen handmade toys; by November 1929, Flores was operating two additional factories in Los Angeles and Hollywood, which all together employed 600 workers and produced 300,000 units daily. The principal distinction between the Filipino design popularized by Flores and

294-436: A "bind" for the yo-yo to return. In competition, mastery of sleeping is the basis for the 1A division. Inexpensive fixed-axle yo-yos usually spin between 10 and 20 seconds, while the expensive ball bearing yo-yos can spin about 1–4 minutes depending on the throw. As of 2010 , the world record sleep times were 3:51.54 minutes for fixed-axle and 21:15.17 minutes for transaxle yo-yos. In 2012, the transaxle yo-yo sleep time record

392-792: A fort with empty cereal boxes and tissue paper spools, or a toddler playing with a broken TV remote control. The term "toy" can also be used to refer to utilitarian objects purchased for enjoyment rather than need, or for expensive necessities for which a large fraction of the cost represents its ability to provide enjoyment to the owner, such as luxury cars, high-end motorcycles, gaming computers, and flagship smartphones. Playing with toys can be an enjoyable way of training young children for life experiences. Different materials like wood, clay, paper, and plastic are used to make toys. Newer forms of toys include interactive digital entertainment and smart toys . Some toys are produced primarily as collectors' items and are intended for display only. The origin of toys

490-464: A large and important part of human existence, the toy industry has a substantial economic impact. Sales of toys often increase around holidays where gift-giving is a tradition. Some of these holidays include Christmas, Easter, Saint Nicholas Day , and Three Kings Day . In 2005, toy sales in the United States totaled about $ 22.9 billion. Money spent on children between the ages of 8 and twelve alone totals approximately $ 221 million annually in

588-408: A model Noah's Ark with miniature animals and objects from other Bible scenes. With growing prosperity among the middle class , children had more leisure time on their hands, which led to the application of industrial methods to the manufacture of toys. More complex mechanical and optical -based toys were also invented during the nineteenth century. Carpenter and Westley began to mass-produce

686-402: A responsive yoyo to return to the hand. This style of yoyoing is the most popular and the most common, and the most yoyo tricks are done with 1A yoyos. Looping is a yo-yo technique which emphasizes keeping the body of two yo-yos, one on each hand, in constant motion, with or without sleeping. Yo-yos optimized for looping have weight concentrated in their centers so they may easily rotate about

784-553: A series of child labor laws, putting an end to child labor in nations such as the U.S. (1949). This fully entrenched, through law, the Western idea that childhood is a time for leisure , not work—and with leisure time comes more space for consumer goods such as toys. During the Second World War , some new types of toys were created through accidental innovation. After trying to create a replacement for synthetic rubber ,

882-420: A single repository. Yo-yo A yo-yo (also spelled yoyo ) is a toy consisting of an axle connected to two disks , and a string looped around the axle, similar to a spool . It is an ancient toy with proof of existence since 440 BC. The yo-yo was also called a bandalore in the 17th century. It is played by holding the free end of the string known as the handle (by inserting one finger—usually

980-478: A specific age range can even harm the development of children in that range, such as when for example toys meant for young girls contribute to the ongoing problem of girls' sexualization in Western culture. A study suggested that supplying fewer toys in the environment allows toddlers to better focus to explore and play more creatively. The provision of four rather than sixteen toys is thus suggested to promote children's development and healthy play. Age compression

1078-427: A study found that parents who demonstrated some androgynous behavior have higher scores in support, warmth, and self-worth in regards to the treatment of their children. Even as this debate is evolving and children are becoming more inclined to cross barriers in terms of gender with their toys, girls are typically more encouraged to do so than boys because of the societal value of masculinity. With toys comprising such

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1176-500: A system described Mark Mcbride in his work about yo-yo theory, the Yonomicon. This system is similar to Ross Levine's "Modern Yoyo Notation". Modern yo-yo notation is designed to be ambidextrous, further eschewing terms like "clockwise" and "counterclockwise". Eventually, wider string gaps and silicone response systems led to the innovation of unresponsive yoyoing, otherwise known as 1A. Traditional yoyos (responsive) would return to

1274-518: A toy bow and arrow from their father while young girls receive a toy basket from their mother. In North African and Saharan cultural communities, gender plays a role in the creation of self-made dolls. While female dolls are used to represent brides, mothers, and wives, male dolls are used to represent horsemen and warriors. This contrast stems from the various roles of men and women within the Saharan and North African communities. There are differences in

1372-632: A trademark case in 1965, a federal court of appeal ruled in favor of the Royal Tops Company, determining that yo-yo had become a part of common speech and that Duncan no longer had exclusive rights to the term. As a result of the expenses incurred by this legal battle as well as other financial pressures, the Duncan family sold the company name and associated trademarks in 1968 to Flambeau, Inc, which had manufactured Duncan's plastic models since 1955. As of 2020 , Flambeau Plastics continued to run

1470-763: A wide range of other skills. One example of the dramatic ways that toys can influence child development involves clay sculpting toys such as Play-Doh and Silly Putty and their home-made counterparts. Mary Ucci, Educational Director of the Child Study Center of Wellesley College , has demonstrated how such toys positively impact the physical development , cognitive development , emotional development , and social development of children. Toys for infants often make use of distinctive sounds, bright colors, and unique textures . Through repetition of play with toys, infants begin to recognize shapes and colors. Play-Doh , Silly Putty and other hands-on materials allow

1568-767: Is prehistoric ; dolls representing infants, animals, and soldiers, as well as representations of tools used by adults, are readily found at archaeological sites. The origin of the word "toy" is unknown, but it is believed that it was first used in the 14th century. Toys are mainly made for children. The oldest known doll toy is thought to be 4,000 years old. Playing with toys is an important part of aging. Younger children use toys to discover their identity, help with cognition , learn cause and effect, explore relationships, become stronger physically, and practice skills needed in adulthood. Adults on occasion use toys to form and strengthen social bonds, teach, help in therapy, and to remember and reinforce lessons from their youth. A toymaker

1666-702: Is a stub . You can help Misplaced Pages by expanding it . This article about a toy company is a stub . You can help Misplaced Pages by expanding it . Toy A toy or plaything is an object that is used primarily to provide entertainment . Simple examples include toy blocks , board games , and dolls . Toys are often designed for use by children, although many are designed specifically for adults and pets. Toys can provide utilitarian benefits, including physical exercise, cultural awareness, or academic education. Additionally, utilitarian objects, especially those which are no longer needed for their original purpose, can be used as toys. Examples include children building

1764-413: Is facilitated by children through the use of toys to enact scenes recognizable in their community such as hunting and herding. The value is placed in a realistic version of development in preparing a child for the future they are likely to grow up into. This allows the child to imagine and create a personal interpretation of how they view the adult world. However, in other cultures, toys are used to expand

1862-466: Is fitted around the axle. Also termed a looped slip-string , this seemingly minor modification allows for a far greater variety and sophistication of motion, thanks to increased stability and suspension of movement during free spin. Shortly thereafter (c. 1929), entrepreneur Donald F. Duncan recognized the potential of this new fad and purchased the Flores yo-yo Corporation and all its assets, including

1960-490: Is generally not as looked down upon for girls to play with toys designed "for boys", an activity which has also become more common in recent years. Fathers are also more likely to reinforce typical play and discourage atypical play than mothers are. A study done by researcher Susan Witt suggests that stereotypes are oftentimes only strengthened by the environment, which perpetuates them to linger in older life. This stereotypical attribution of sex-typical toys for girls and boys

2058-408: Is gradually changing, with toys companies creating more gender neutral toys, as the benefits associated with allowing children to play with toys that appeal to them far outweighs controlling their individual preferences. For example, many stores are beginning to change their gender labels on children's play items. Target removed all identification related to gender from their toy aisles and Disney did

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2156-404: Is intended to be wound on the spool by hand; the yo-yo is thrown downward, hits the end of the string then winds up the string toward the hand, and finally the yo-yo is grabbed, ready to be thrown again. One of the most basic tricks is called the sleeper , where the yo-yo spins at the end of the string for a noticeable amount of time before returning to the hand. The word yo-yo probably comes from

2254-518: Is isolated and independent of the social constraints placed on society leaving the children free to delve into the imaginary and idealized version of what their development in life could be. In addition, children from differing communities may treat their toys in different ways based on their cultural practices. Children in more affluent communities may tend to be possessive of their toys, while children from poorer communities may be more willing to share and interact more with other children. The importance

2352-428: Is key in the toy industry and to succeed one must create a 'wow' moment for kids by designing toys that have fun, innovative features and include new technologies and engaging content." In an effort to reduce costs, many mass-producers of toys locate their factories in areas where wages are lower. China manufactures about 70 percent of the world's toys and is home to more than 8,000 toy firms, most of which are located in

2450-403: Is no gender neutral section on their website. Those which are generally deemed for both genders more closely resemble what many would label "boy toys," as they relate closer to the stereotype of masculinity within play. Traditions within various cultures promote the passing down of certain toys to their children based on the child's gender. In Indigenous South American communities, boys receive

2548-537: Is no sound historical evidence that yo-yos were ever used as weapons; the notion is believed to have been a marketing gimmick disseminated by Duncan yo-yo demonstrators in the early years of the company. Regardless, the notion that yo-yos can be used as weapons persists to this day in pop culture , as in the Chinese television series Blazing Teens , and in the Japanese Guilty Gear franchise by

2646-419: Is one of the most common yo-yo throws and is the basis for nearly all yo-yo throws other than looping . Keeping a yo-yo spinning while remaining at the end of its uncoiled string is known as sleeping. While the yo-yo is in the "sleeping" state at the end of the string, one can then execute tricks like "walk the dog", "the elevator", "around the world", or the slightly more complex "rock the baby". The essence of

2744-560: Is the World Yo-Yo Contest . Outside of the competition scene, yo-yo players regularly share videos of their yo-yo tricks on the Internet; a common place players do so is on Instagram , using the hashtag "#trickcircle". Some yo-yo players have also found modest success outside the yo-yo community, going viral on TikTok , gaining significant YouTube followings, or being featured guests on television programs. The sleeper

2842-424: Is the modern trend of children moving through play stages faster than was the case in the past. Children have a desire to progress to more complex toys at a faster pace, girls in particular. Barbie dolls, for example, were once marketed to girls around 8 years old but have been found to be more popular in recent years with girls around 3 years old, with most girls outgrowing the brand by about age 7. The packaging for

2940-470: Is the name of someone who makes toys. Toys and games have been retrieved from the sites of ancient civilizations, and have been mentioned in ancient literature. Toys excavated from the Indus valley civilization (3010–1500 BCE) include small carts, whistles shaped like birds, and toy monkeys that could slide down a string. One of the earliest examples of children's toys is a set of three stone balls found in

3038-399: Is the use of meta-analysis , which provides a way to assess patterns in a systematic way, especially relevant for a topic such as gender, which can be difficult to quantify. Nature and nurture have historically been analyzed when looking at gender in play, as well as reinforcement by peers and parents of typical gender roles and consequently, gender play. Toy companies have often promoted

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3136-429: Is tracked in young infants, infant girls show a visual preference for a doll over a toy truck (d > 1.0). Boys showed no preference for the truck over the doll. However, they did fixate on the truck more than the girls (d = .78). This small study suggests that even before any self-awareness of gender identity has emerged, children already prefer sex-typical toys. These differences in toy choice are well established within

3234-461: Is usually launched into the air by performing a "forward pass" to be caught again on the string. However, some players can 'throw down' off-string yo-yos and catch it on the string just as it leaves the end of the string by pivoting the string around a finger as it unwinds, so that the yo-yo is caught on the string. This is exactly the opposite of a "forward pass", but with the same result. Yo-yos optimized for off-string tricks have flared designs, like

3332-577: The Hello Kitty brand and the Disney Princess franchise. Boys have shown an interest in computer games at an ever-younger age in recent years. Certain toys, such as Barbie dolls and toy soldiers, are often perceived as being more acceptable for one gender than the other. The turning point for the addition of gender to toys came about in the 1960s and 1970s. Before 1975, only about two percent of toys were labeled by gender, whereas today on

3430-568: The Ilocano term yóyo, or a cognate word from the Philippines . A Greek vase painting from 440 BC shows a boy playing with a yo-yo (see right). Greek records from the period describe toys made out of wood, metal, or painted terra cotta (fired clay). The terra cotta disks were used to ceremonially offer the toys of youth to certain gods when a child came of age—discs of other materials were used for actual play. In 1928, Pedro Flores ,

3528-611: The Pearl River Delta of Guangdong Province . 75% of all toys sold in the U.S., for example, are manufactured in China. Issues and events such as power outages, supply of raw materials, supply of labor, and raising wages that impact areas where factories are located often have an enormous impact on the toy industry in importing countries. Many traditional toy makers have been losing sales to video game makers for years. Because of this, some traditional toy makers have entered

3626-498: The kaleidoscope , invented by Sir David Brewster in 1817, and had sold over 200,000 items within three months in London and Paris. The company was also able to mass-produce magic lanterns for use in phantasmagoria and galanty shows, by developing a method of mass production using a copper plate printing process. Popular imagery on the lanterns included royalty , flora and fauna , and geographical/man-made structures from around

3724-403: The "modern" era of yo-yo. The modern era of yo-yo is characterized by markedly more complicated and sophisticated yo-yo techniques than came before in addition to a plethora of different yo-yo designs created to serve various niche purposes. This increased complexity of yo-yo play was allowed by the introduction of the ball-bearing technology to yo-yos, which enabled yo-yos to spin much longer than

3822-548: The "must-have toys" of the 1940s ), Mr. Potato Head , the Barbie doll (inspired by the Bild Lilli doll from Germany), and Action Man . The Rubik's Cube became an enormous seller in the 1980s. In modern times, there are computerized dolls that can recognize and identify objects, the voice of their owner, and choose among hundreds of pre-programmed phrases with which to respond. The act of children's play with toys embodies

3920-445: The 1750s, including A Journey Through Europe . The game was very similar to modern board games; players moved along a track with the throw of a die (a teetotum was actually used) and landing on different spaces would either help or hinder the player. In the nineteenth century, Western values prioritized toys with an educational purpose, such as puzzles, books, cards and board games. Religion-themed toys were also popular, including

4018-471: The 19th century. In 1903, a year after publishing The Tale of Peter Rabbit , English author Beatrix Potter created the first Peter Rabbit soft toy and registered him at the Patent Office in London, making Peter the oldest licensed character. It was followed by other "spin-off" merchandise over the years, including painting books and board games. The Smithsonian magazine stated, "Potter

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4116-435: The 4A division for off-string tricks. In freehand tricks, the yo-yo's string is not tied to the player's hand, instead ending in a counterweight. The counterweight is then thrown from hand to hand and used as an additional element in the trick. Developed in 1999 by Steve Brown , as of 2008 freehand is considered to be the fastest-growing style of yo-yo play. Steve Brown was awarded a patent on his freehand yo-yo system, which

4214-469: The American Earl L. Warrick inadvertently invented "nutty putty" during World War II . Later, Peter Hodgson recognized the potential as a childhood plaything and packaged it as Silly Putty . Similarly, Play-Doh was originally created as a wallpaper cleaner. In 1943 Richard James was experimenting with springs as part of his military research when he saw one come loose and fall to the floor. He

4312-624: The Disney store's website, considered a dominating global force for toys by researcher Claire Miller, all toys are labeled by gender. The journal Sex Roles began publishing research on this topic in 1975, focusing on the effects of gender in youth. Too, many psychological textbooks began to address this new issue. Along with these publications, researchers also started to challenge the ideas of male and female as being opposites, even going as far as to claim toys which have characteristics of both genders are preferable. A milestone for research on gender

4410-456: The English lawyer Angelo John Lewis , writing under the pseudonym of Professor Hoffman, wrote a book called Puzzles Old and New . It contained, among other things, more than 40 descriptions of puzzles with secret opening mechanisms. This book grew into a reference work for puzzle games and was very popular at the time. The Tangram puzzle, originally from China, spread to Europe and America in

4508-510: The Flores name, which was transferred to the new company in 1932. The name "Yo-yo" was registered in 1932 as a trademark by Sam Dubiner in Vancouver, Canada, and Harvey Lowe won the first World Yo-Yo Contest in London, England. In 1932, Swedish Kalmartrissan yo-yos started to be manufactured as well. In 1933, yo-yos were banned in Syria , because many locals superstitiously blamed

4606-643: The SB-2 yo-yo that had an aluminum transaxle, making it the first successful ball-bearing yo-yo. The SB2 was originally offered only in a natural silver color, but as time went on, it became available in many different colors, with various decorative embellishments. In all transaxle yo-yos, ball bearings significantly reduce friction when the yo-yo is spinning, enabling longer and more complex tricks. Subsequent yo-yo players used this ability to their advantage, creating new tricks that had not been possible with fixed-axle designs. There are many new types of ball bearings in

4704-461: The U.S. It was estimated that in 2011, 88% of toy sales was in the age group 0–11 years. Toy companies change and adapt their toys to meet the changing demands of children thereby gaining a larger share of the substantial market. In recent years many toys have become more complicated with flashing lights and sounds in an effort to appeal to children raised around television and the internet. According to Mattel 's president, Neil Friedman, "Innovation

4802-628: The Western World. At this point, name-brand toys became widespread in the U.S.–a new phenomenon that helped market mass-produce toys to audiences of children growing up with ample leisure time and during a period of relative prosperity. Among the more well-known products of the 1950s there was the Danish company Lego 's line of colourful interlocking plastic brick construction sets (based on Hilary Page 's Kiddicraft Self-Locking Bricks, described by London's V&A Museum of Childhood as among

4900-465: The archaeological record. Small figurines and models found in tombs are usually interpreted as ritual objects; those from settlement sites are more easily labelled as toys. These include spinning tops, balls of spring, and wooden models of animals with movable parts. In ancient Greece and ancient Rome , children played with dolls made of wax or terracotta : sticks, bows and arrows , and yo-yos . When Greek children, especially girls, came of age, it

4998-454: The balls of the bearing, to reduce internal friction, again making for a smoother spinning yo-yo. Precious materials such as ruby have also been used as a material in prototype ball bearings for its properties such as extreme hardness. The material was first tested in a prototype bearing made by Wolf Yoyo Works in May 2018. The era following the yo-yo boom of the late 1990s is often referred to as

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5096-469: The building of working models and mechanical devices. Dinky Toys pioneered the manufacture of die-cast toys with the production of toy cars, trains and ships and model train sets became popular in the 1920s. The Britains company revolutionized the production of toy soldiers with the invention of the process of hollow casting in lead in 1893 – the company's products remained the industry standard for many years. Puzzles became popular as well. In 1893,

5194-406: The butterfly shape, which makes it easier to land on the string, and often have soft rubber rings on the edges, so minimum damage is inflicted on the yo-yo, the player, or anyone who happens to be standing nearby, should a trick go wrong. There are also tricks which involve the use of two off-string yoyos at the same time, thrown with the same hand, this is known as "soloham". Yo-yo competitions have

5292-427: The child by the age of three. Another study done by Jeffrey Trawick-Smith took 60 different children ages three to four and observed them playing with nine different toys deemed best for development. They were allowed to play with the toys in a typical environment, a preschool classroom, which allowed for the results to be more authentic compared to research done in a lab. The researchers then quantified play quality of

5390-595: The child places on possession is dictated by the values in place within the community that the children observe on a daily basis. Toys, like play itself, serve multiple purposes in both humans and animals. They provide entertainment while fulfilling an educational role. Toys enhance cognitive behavior and stimulate creativity. They aid in the development of physical and mental skills which are necessary in later life. Wooden blocks , though simple, are regarded by early childhood education experts such as Sally Cartwright (1974) as an excellent toy for young children; she praised

5488-478: The child to make toys of their own. Educational toys for school age children of often contain a puzzle , problem-solving technique, or mathematical proposition. Often toys designed for older audiences, such as teenagers or adults, demonstrate advanced concepts. Newton's cradle , a desk toy designed by Simon Prebble , demonstrates the conservation of momentum and energy . Not all toys are appropriate for all ages of children. Even some toys which are marketed for

5586-431: The children with each toy based on factors such as learning, problem solving, curiosity, creativity, imagination, and peer interaction. The results revealed that boys generally received higher scores for overall play quality than girls, and the toys with the best play quality were those identified as the most gender neutral, such as building blocks and bricks along with pieces modeling people. Trawick-Smith then concluded that

5684-493: The company. As popularity spread through the 1970s and 1980s, there were a number of innovations in yo-yo technology, primarily regarding the connection between the string and the axle. In 1979, dentist and yo-yo celebrity Tom Kuhn patented the "No Jive 3-in-1" yo-yo, creating the world's first "take-apart" yo-yo, which enabled yo-yo players to change the axle. Swedish bearing company SKF briefly manufactured novelty yo-yos with ball bearings in 1984. In 1990, Kuhn introduced

5782-627: The daily flux of making and consuming, of getting along. They had no autonomy, separate statuses, privileges, special rights or forms of social comportment that were entirely their own." As these ideas began changing during the Enlightenment Era, blowing bubbles from leftover washing up soap became a popular pastime, as shown in the painting The Soap Bubble (1739) by Jean-Baptiste-Siméon Chardin , and other popular toys included hoops , toy wagons , kites , spinning wheels and puppets . Many board games were produced by John Jefferys in

5880-403: The debut of Velvet Rolls, coupled with the rise of unresponsive yoyo play, that development began on what is currently considered Triple A. This is the most complex style and is the most likely to obtain knots, dings, and clangs. In competition, two handed string tricks have the 3A division. In the "off-string" technique, the yo-yo's string is not tied directly to the yo-yo's axle, and the yo-yo

5978-465: The development of a child's cognition in an idealistic fashion. In these communities, adults place the value of play with toys to be on the aspirations they set forth for their child. In the Western culture, the Barbie and Action-Man represent lifelike figures but in an imaginative state out of reach from the society of these children and adults. These toys give way to a unique world in which children's play

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6076-520: The dolls labels them appropriate for ages 3 and up. Boys, in contrast, apparently enjoy toys and games over a longer timespan, gravitating towards toys that meet their interest in assembling and disassembling mechanical toys, and toys that "move fast and things that fight". An industry executive points out that girls have entered the " tween " phase by the time they are 8 years old and want non-traditional toys, whereas boys have been maintaining an interest in traditional toys until they are 12 years old, meaning

6174-608: The fact that they are relatively easy to engage with, can be used in repeatable and predictable ways, and are versatile and open-ended, allowing for a wide variety of developmentally appropriate play. Andrew Witkin, director of marketing for Mega Brands , told Investor's Business Daily that "They help develop hand-eye coordination, math and science skills and also let kids be creative." Other toys like marbles , jackstones , and balls serve similar functions in child development, allowing children to use their minds and bodies to learn about spatial relationships , cause and effect , and

6272-488: The field of electronic games and have even been turning audio games into toys, and are enhancing the brands that they have by introducing interactive extensions or internet connectivity to their current toys. In addition, the rise of distributed manufacturing enables consumers to make their own toys from open source designs with a 3-D printer . As of 2017 consumers were already offsetting millions of dollars per year by 3D printing their own toys from MyMiniFactory ,

6370-533: The first modern Triple A trick appeared in Fiend Magazine and was called the Velvet Rolls. The different mounts in this style are referred to as houses (e.g. "Kink House"). Photos from as early as the late 1950s show early yo-yo demonstrators performing very basic 3A tricks, such as a Sleeper with one hand, and a Trapeze with the other. While 3A as a concept has existed for many years, it was not until

6468-432: The hand when one would tug on the string, but unresponsive yoyos behave a little differently. Instead of returning to the hand when one tugs on the string, one has to perform a trick called a "bind" where the string is doubled over inside the string gap to increase friction on the response system. This has brought about innovation of many different kinds of tricks involving leaving slack in the string, as this would have caused

6566-535: The late 18th and early 19th century, many families needed to send their children to work in factories and other sites to make ends meet—just as their predecessors had required their labor producing household goods in the medieval era. Business owners' exploitation and abuse of child laborers during this period differed from how children had been treated as workers within a family unit, though. Thanks to advocacy including photographic documentation of children's exploitation and abuse by business owners, Western nations enacted

6664-483: The market which deviate from the original design and/or material of the standard stainless steel ball bearing. For example, a certain type of bearing has an inward facing curved surface, to prevent the string from rubbing on the sides of the yo-yo, which would cause unwanted friction when performing intricate string tricks. Other manufacturers replicate this with a similar inwardly curved surface, but use minor modifications. Some high-end bearings use ceramic composites in

6762-408: The middle or ring finger—into a slip knot ), allowing gravity (or the force of a throw and gravity) to spin the yo-yo and unwind the string (similar to how a pullstring works). The player then allows the yo-yo to wind itself back to the player's hand, exploiting its spin (and the associated rotational energy ). This is often called "yo-yoing" or "playing yo-yo". In the simplest play, the string

6860-421: The more traditional yo-yos is in the way the yo-yo is strung. In older (and some remaining inexpensive) yo-yo designs, the string is tied to the axle using a knot. With this technique, the yo-yo just goes back and forth; it returns easily, but it is impossible to make it sleep. In Flores's design, one continuous piece of string, double the desired length, is twisted around something to produce a loop at one end which

6958-540: The pieces. In Iran , "puzzle-locks" were made as early as the 17th century (CE). Toys became more widespread with changing Western attitudes towards children and childhood brought about by the Enlightenment . Previously, children had often been thought of as small adults, who were expected to work in order to produce the goods that the family needed to survive. As children's culture scholar Stephen Kline has argued, Medieval children were "more fully integrated into

7056-450: The primary influencer on the gender roles of their children. Parents, siblings, peers, and even teachers have been shown to react more positively to children engaging in sex-typical behavior and playing with sex-typical toys. This is often done through encouragement or discouragement, as well as suggestions and imitation. Additionally, sons are more likely to be reinforced for sex-typical play and discouraged from atypical play. However, it

7154-519: The same for their costumes. The Disney store is an especially prevalent example of gender in play because they are a global identity in the toy world. A study done regarding their website found that though they have removed gender labels from their costumes, the toys online reflect more stereotypical gender identities. For example, toys depicting males were associated with physicality and females were associated with beauty, housing, and caring. Though Disney promotes their toys as being for both genders, there

7252-410: The segregation by gender in toys because it enables them to customize the same toy for each gender, which ultimately doubles their revenue. For example, Legos added more colors to certain sets of toys in the 1990s, including colors commonly attributed to girls such as lavender. It has been noted by researchers that, "Children as young as 18 months display sex-stereotyped toy choices". When eye movement

7350-431: The slack created in the string will allow it to begin winding around the shaft, thereby increasing friction and allowing it to catch as the static friction force rises above the gravitation force holding the yo-yo at the bottom of the string, making the yo-yo wind up the string returning to the hand. Patents have been issued to create more complicated mechanisms to allow tension control and an adjustable mechanism. There

7448-430: The split bottom mount. Sidestyle mounts include the man on the flying trapeze. Combinations can be produced by transitioning from one mount to another in various ways. Combinations which can repeat indefinitely are called "repeaters". Loops are yoyo tricks that consist of the yoyo looping around the throw hand. A certain class of looping tricks, regens, are tricks that add spin to a yoyo without having to return it to

7546-401: The string with a loop, there may not be enough frictional force to overcome the weight of the yo-yo, which is necessary to begin winding up the string. In this case, the yo-yo will continue to spin in the loop at the end of the string (or sleep ), just being slightly braked by the small dynamic friction, instead of returning. However, if the string is jerked slightly up, or the hand is lowered,

7644-461: The string's axis without their mass contributing to resistance due to a gyroscopic effect. In yo-yo competitions, looping both to the inside and outside of the hand with the yo-yo plays a strong role in the 2A division. Sometimes the yoyos would wrap around arms, legs, or necks. Also known as two hands looping freestyle. Two handed or 3A style play involves doing string tricks with two flared bearing yo-yos. Popularized and pioneered by Mark McBride,

7742-425: The study encourages a focus on toys which are beneficial to both genders in order to create a better balance. While some parents promote gender neutral play, many parents encourage their children to participate in sex-typed activities, including doll-playing and engaging in housekeeping activities for girls and playing with trucks and engaging in sports activities for boys. Researcher Susan Witt said that parents are

7840-401: The supply to meet this rising demand. Intellectual emphasis was also increasingly being placed on the importance of a wholesome and happy childhood for the future development of children. Franz Kolb , a German pharmacist, invented plasticine in 1880, and in 1900 commercial production of the material as a children's toy began. Frank Hornby was a visionary in toy development and manufacture and

7938-402: The throw is that one throws the yo-yo with a very pronounced wrist action so that when the yo-yo reaches the end of the string it spins in place rather than rolling back up the string to the thrower's hand. Most modern yo-yos have a transaxle or ball bearing to assist this, but if it is a fixed axle yo-yo, the tension must be loose enough to allow this. The two main ways to do this are (1), allow

8036-539: The throwing hand. Because regens switch between frontstyle and sidestyle, they are frequently used to transition between frontstyle and sidestyle combinations. Certain tricks, such as the UFO and Sidewinder, can alter the string tension, making it looser or tighter, thereby altering the response of the yo-yo. This also allows for a certain type of trick called slack tricks to be completed with greater ease. Several methods of notating yo-yo tricks have been formulated, including

8134-400: The tomb of a four-year-old girl at Xi'an Banpo Neolithic site. The earliest toys were made from natural materials, such as rocks, sticks, and clay . Thousands of years ago, Egyptian children played with dolls that had wigs and movable limbs, which were made from stone, pottery, and wood. However, evidence of toys in ancient Egypt is exceptionally difficult to identify with certainty in

8232-536: The toys that are intended for girls and boys within various cultures, which is reflective of the differing roles of men and women within a specific cultural community. Research on the repercussions of gender in toys suggests that desegregation of the genders can be achieved by encouraging more gender-neutral play. Researchers Carol Auster and Claire Mansbach have argued that allowing children to play with toys which more closely fit their talents would help them to better develop their skills. In terms of parental influence,

8330-575: The traditional toy industry holds onto their boy customers for 50% longer than their girl customers. Girls gravitate towards "music, clothes, make-up, television talent shows and celebrities". As young children are more exposed to and drawn to music intended for older children and teens, companies are having to rethink how they develop and market their products. Girls also demonstrate a longer loyalty to characters in toys and games marketed towards them. A variety of global toy companies have marketed themselves to this aspect of girls' development, for example,

8428-404: The use of the free hand. Unlike 1A, modern responsive deliberately abstains from tricks that involve sleeping, frequently replacing mounts with stalls. When the yo-yo is first released, the gravity (and the throw) give it translational kinetic energy and necessarily, since the string must unwind, much of this energy is converted into rotational kinetic energy establishing the free movement of

8526-655: The use of them for a severe drought. In 1946, the Duncan Toys Company opened a yo-yo factory in Luck, Wisconsin . The Duncan yo-yo was inducted into the National Toy Hall of Fame at The Strong in Rochester, New York , in 1999. Declining sales after World War II prompted Duncan to launch a comeback campaign for his trademarked "Yo-Yo" in 1962 with a series of television advertisements . In

8624-418: The values set forth by the adults of their specific community, but through the lens of the child's perspective. Within cultural societies, toys are a medium to enhance a child's cognitive, social, and linguistic learning. In some cultures, toys are used as a way to enhance a child's skillset within the traditional boundaries of their future roles in the community. In Saharan and North African cultures, play

8722-637: The world. The modern zoetrope was invented in 1833 by British mathematician William George Horner and was popularized in the 1860s. Wood and porcelain dolls in miniature doll houses were popular with middle-class girls, while boys played with marbles and toy trains. The golden age of toy development occurred during the Industrial Era . Real wages were rising steadily in the Western world, allowing even working-class families to afford toys for their children, and industrial techniques of precision engineering and mass production were able to provide

8820-399: The yo-yo to sit at the bottom of the string to unwind, or (2) perform lariat or UFO to loosen the tension. When one decides to end the "sleeping" state, one merely jerks the wrist and the yo-yo "catches" the string and rolls back up to the hand. Ball-bearing yo-yos with a "butterfly" shape, primarily used for string tricks, frequently have a low response or are completely unresponsive, requiring

8918-406: The yo-yo, and causing it to spin rapidly. As the yo-yo unwinds downward, it also converts potential energy from gravity to translational energy in its rotation to overcome gravity all the way back up to the hand. Because the sense of spinning does not change during the whole move, the string winds up in the opposite direction upon the return of the yo-yo. If the shaft of the yo-yo is connected to

9016-462: Was also an entrepreneur and a pioneer in licensing and merchandising literary characters. Potter built a retail empire out of her "bunny book" that is worth $ 500 million today. In the process, she created a system that continues to benefit all licensed characters, from Mickey Mouse to Harry Potter ." In tandem with the development of mass-produced toys, Enlightenment ideals about children's rights to education and leisure time came to fruition. During

9114-432: Was assigned to Flambeau Products ( Duncan's parent company). Duncan patented the counterweight, and no one was able to design a unique weight. However, since March 28, 2020, the patent has expired. In yo-yo competitions, counterweight yo-yos are emphasized in the 5A division. Modern responsive yo-yo can be thought of as 2A with a single yoyo, but differs from 2A in the fact that it, like 1A, has access to tricks involving

9212-500: Was broken by the C3YoyoDesign BTH, with a time of 30:28.30 minutes. A traditional sleeper throw is employed to start frontstyle combinations, whereas a sideways sleeper, or "breakaway" is used to start sidestyle combinations. Yo-yo tricks in which the yo-yo comes to be sitting a string are called mounts. Transitions are employed to move from one mount to another. Frontstyle mounts include the under and over mounts, as well as

9310-421: Was customary for them to sacrifice the toys of their childhood to the gods . On the eve of their wedding, young girls around fourteen would offer their dolls in a temple as a rite of passage into adulthood. The oldest known mechanical puzzle also comes from ancient Greece and appeared in the 3rd century BCE. The game consisted of a square divided into 14 parts, and the aim was to create different shapes from

9408-489: Was intrigued by the way it flopped around on the floor. He spent two years fine-tuning the design to find the best gauge of steel and coil; the result was the Slinky , which went on to sell in stores throughout the United States. After the Second World War , as society became ever more affluent and new technology and materials (plastics) for toy manufacture became available, toys became cheap and ubiquitous in households across

9506-434: Was previously possible. This, in addition to the advent of the bind technique and unresponsive yo-yoing equipped yo-yo players with an essentially limitless amount of freedom, with which they were able to create myriad yo-yo tricks and techniques. In the wake of this revolution that took place in yo-yo, a landscape of yo-yo competitions tailored towards this modern style of yo-yo play emerged. One example of such competitions

9604-402: Was responsible for the invention and production of three of the most popular lines of toys based on engineering principles in the twentieth century: Meccano , Hornby Model Railways and Dinky Toys . Meccano was a model construction system that consisted of re-usable metal strips, plates, angle girders , wheels, axles and gears , with nuts and bolts to connect the pieces and enabled

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