Yo-yo

A yo-yo (also spelled yoyo) is a toy which in its simplest form is an object consisting of an axle connected to two disks, and a length of string looped around the axle, similar to a slender spool. It is played by holding the free end of the string known as the handle (usually by inserting one finger in a slip knot) allowing gravity or the force of a throw to spin the yo-yo and unwind the string (similar to how a pullstring works), then allowing the yo-yo to wind itself back to one's hand, exploiting its spin (and the associated rotational energy). This is often called "yo-yoing". First made popular in the 1920s, yo-yoing remains a popular pastime of many generations and cultures. It was first invented in ancient Greece.

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 sleeper, where the yo-yo spins at the end of the string for a noticeable amount of time before returning to the hand.

Columns (juggling)

In toss juggling, columns, also known as One-up Two-up, is a juggling trick or pattern 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), 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 pattern, whilst the other two balls are in midair.

Yo-yo (disambiguation)

A yo-yo is a toy.

Yo-yo may also refer to:

People

Art, entertainment, and media

Fictional entities

Film

Music

Groups

Albums

Songs

Other uses

Naked eye

Naked eye (also called bare eye) is the practice of engaging in visual perception unaided by a magnifying or light-collecting optical device, such as a telescope or microscope. Vision corrected to normal acuity using corrective lenses is considered "naked". In astronomy, the naked eye may be used to observe events that can be viewed without equipment, such as an astronomical conjunction, the passage of a comet, or a meteor shower. Sky lore and various tests demonstrate an impressive wealth of phenomena that can be seen with the unaided eye.

Basic accuracies

The basic accuracies of the human eye are:

Naked eye (disambiguation)

Naked eye is a figure of speech referring to visual perception.

Naked eye may also refer to:

See also

Naked Eye (The Who song)

"Naked Eye" is a song by The Who, written by Pete Townshend. The studio version was released on the group's 1974 compilation album Odds and Sods (reissued in 1998). Live versions appear on Live at the Isle of Wight Festival 1970, View from a Backstage Pass, Greatest Hits Live, Thirty Years of Maximum R&B, and both reissues of Who's Next.

Background

One of the main chord progressions in "Naked Eye" can be traced to the spring and summer of 1969 when the band was touring in support of the Tommy album. The three-chord riff (F6/9-Cadd9-G) was sometimes played during the group’s very long and improvised versions of "Magic Bus" at that time, then later in expanded jams during "My Generation", as heard in the Live at Leeds version. Eventually Townshend composed the entire song around this progression.

"Naked Eye" was originally planned to be released on a 1970 Who EP entitled 6 ft. Wide Garage, 7 ft. Wide Car, a collection which was to include "Water", "I Don't Even Know Myself", and "Postcard." There were also plans to release a live version of the song, but neither plan materialized.