A yo-yo also spelled as yoyo is a toy consisting of an axle connected to two disksand a string looped around the axle. It has some similarities to a slender spool. A yo-yo is Runaway Boys - Stray Cats - Stray Cats by holding the free end of the string known as 4 the handle by inserting one finger—usually the middle or index 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 Yo Yo - Q-Project* / Davide Carbone Feat.
Dominique* - Yo Yo / Eldorado 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 Yo Yo - Q-Project* / Davide Carbone Feat.
Dominique* - Yo Yo / Eldorado called "yo-yoing". In the simplest play, the string is intended to be wound on the spool by hand; The yo-yo is thrown downwards, 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 sleeperwhere the yo-yo spins at the end of the string for a noticeable amount of time before returning to the hand. A Greek vase painting from BC shows a boy playing with a yo-yo see right.
The principal distinction between the Filipino design popularized by Flores and more primitive 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 is fitted around the axle.
Also termed a looped slip-stringthis 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. Duncan recognized the potential of this new fad and purchased the Flores yo-yo Corporation and all its assets, including the Flores name, which was transferred to the new company in In yo-yos were banned in Syriabecause many locals superstitiously blamed the use of them for a severe drought.
Declining sales after the Second World War prompted Duncan to launch a comeback campaign for his trademarked "Yo-Yo" in with a series of television advertisements. In a trademark case ina federal court's appeals 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 to Flambeau, Incwhich had manufactured Duncan's plastic models since As popularity spread through the s and s, there were a number of innovations in yo-yo technology, primarily regarding the connection between the string and the axle.
Swedish bearing company SKF briefly manufactured novelty yo-yos with ball bearings in InKuhn introduced the SB-2 yo-yo that had an aluminum transaxle, making it the first successful ball-bearing yo-yo. In all transaxle yo-yos, ball bearings significantly reduce friction when the yo-yo is spinning, enabling longer and more complex tricks. Subsequent yo-yoers used this ability to their advantage, creating new tricks that had not been possible with fixed-axle designs.
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 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 sleeper is Yo Yo - Q-Project* / Davide Carbone Feat. Dominique* - Yo Yo / Eldorado 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 Yo Yo - Q-Project* / Davide Carbone Feat.
Dominique* - Yo Yo / Eldorado execute tricks like "walk the dog", "around the world", or the more complex "rock the baby". The essence of 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 1allow the yo-yo to sit at the bottom of the string to unwind, or 2 perform lariat or UFO to loosen Clown (Reprise) - Bernd Schmidt & Klaus-Peter Reinicke - Zwölf-Elf 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 low response or are completely unresponsive, requiring 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—20 seconds, while the expensive ball bearing yo-yos can spin about 1—4 minutes depending on the throw. 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 the hand when one would tug on the string, but unresponsive yoyos behave a little differently. Instead of returning to the hand when you tug on the string, you have to perform a trick called a "bind. Looping is a yo-yo technique which emphasizes keeping the body of two yo-yos, one on each hand, in constant motion, without sleeping.
Yo-yos optimized for looping have weight concentrated in their centers so they may easily rotate about 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. Two handed or 3A style play involves doing string tricks with two flared bearing yo-yos. The different mounts in this style are referred to as houses e. Photos from as early as the late s show early yo-yo demonstrators performing very basic Triple A tricks, such as a Sleeper with one hand, and a Trapeze with the other.
While Triple A as a concept has existed for many years, it was Come Go With Me - Various - Uptown MTV Unplugged until the debut of Velvet Rolls, The Revells - The Jimmy Webb Songbook with the rise of unresponsive yoyo play, that development began on what is currently considered Triple A.
In the "off-string" technique, the yo-yo's string is not tied directly to the yo-yo's axle, and the yo-yo 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 Io?Drama - Non Resta Che Perdersi 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 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 Moonlighters - Visst E Det Skönt 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.
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 by Steve Brownas of 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 was assigned to Flambeau Products Duncan's parent company. 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 move of the yo-yo, and causing it to spin rapidly. As the yo-yo unwinds downwards, it also converts potential energy from gravity to both translational and rotational kinetic energy.
Because the yo-yo has significant rotational inertiait can store Warm Thoughts - Earth Movers - Build 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 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 sleepjust being slightly braked by the small dynamic friction, instead of returning.
However, if the string is jerked slightly up, this will increase the force from the string on the shaft, thereby rising the boundary for static friction, proportional to the "weight" of the yo-yo, above the current frictional force, making it static friction, thereby forcing My Friend - Various - Withnail And I (Original Soundtrack) rotational energy of the yo-yo to wind up the string and finish the rest of the return.
Patents have been issued to create more complicated mechanisms to allow tension control and an adjustable mechanism. From Wikipedia, the free encyclopedia. Redirected from Yo-yo technique. This article is about the toy. For other uses, see Yo-yo disambiguation. Toys portal Games portal. Retrieved Ancient Greek Athletics. Yale University Press. Retrieved 19 March Retrieved on Richmond News. Archived from the original on Barrier Miner. Sydney, Australia. Retrieved 8 July Retro Planet What is your favourite bearing type?
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