Columns,also known as One-up Two-up, is a juggling

Juggling

Juggling is a skill involving moving objects for entertainment or sport. The most recognizable form of juggling is toss juggling, in which the juggler throws objects up to catch and toss up again. This may be one object or many objects, at the same time with one or many hands. Jugglers often refer...

 trick where the balls are thrown upwards without any sideways motion. The simplest version involves having three balls, with two going up simultaneously on either side, followed by one going up in the middle. One way to accomplish this is to juggle 2 balls in one hand and one ball in the other, so one hand has to move faster and further than in a regular pattern

Cascade (juggling)

In juggling, a cascade is the simplest pattern achievable with an odd number of props. The simplest cascade is the three-ball cascade. This is therefore the first pattern that most jugglers learn.-Three-ball cascade:...

, whilst the other remains almost stationary. The hand juggling the center ball can alternate with each repeat to make the pattern symmetric.

Variations

There are many variations to this simple three ball pattern. Some involve alternating the placement of the 'lone' inside throw, while others involve the two outside throws.

The 'lone' ball may be to either side of the two balls, and can have its position in relation to them altered whilst juggling the pattern by throwing it not at a vertical angle, or moving the hand holding it when it has been caught. This ball can also be thrown quickly from one hand to the other as in a box

Box (juggling)

The Box is a juggling pattern for 3 objects, most commonly balls or bean bags. Two balls are dedicated to a specific hand with vertical throws, and the third ball is thrown horizontally between the two hands...

 pattern, whilst the other two balls are in midair.

The two balls being thrown and caught simultaneously may also be moved, for example crossing them over in the air, so that they do not land in the hand which threw them. The hands holding these balls may also cross or uncross at any time during the pattern.

Another common variation is to carry one of the two outside throws up and down rather than throwing it. The carried ball can then be moved in many different ways to complement the pattern. In a variation called Yo-yo the ball is carried up and down directly underneath one of the other balls to give the impression that the balls are connected by an invisible string, like a yo-yo

Yo-yo

The yo-yo in its simplest form is an object consisting of an axle connected to two disks, and a length of twine looped around the axle, similar to a slender spool...

.

The trick can be extended to any number of balls and can be varied by doing synchronous

Synchronization

Synchronization is timekeeping which requires the coordination of events to operate a system in unison. The familiar conductor of an orchestra serves to keep the orchestra in time....

 or asynchronous throws. The props used may also be altered.

Siteswap

The synchronous siteswap

Siteswap

Siteswap is a notation used to describe juggling patterns. It encodes the number of beats of each throw, which is related to their height, and the hand to which the throw is to be made...

of the basic version of the trick is (4,4)(4,0). What the notation fails to capture is that 4s are always thrown in straight lines, which can be considered an essential property of the trick, given the name.

External links

• Tunbridge Wells Juggling Club: Columns