Your perfect live wallpaper for Android!
Interactive background - Tap anywhere on the screen and new circles will appear! 
Full support for landscape mode and home-screen switching!

Installation instructions:
Home -> Menu -> Wallpapers -> Live Wallpapers

A circle is a simple shape of Euclidean geometry consisting of those points in a plane that are equidistant from a given point, the centre. The distance between any of the points and the centre is called the radius.

Circles are simple closed curves which divide the plane into two regions: an interior and an exterior. In everyday use, the term ‘circle’ may be used interchangeably to refer to either the boundary of the figure or to the whole figure including its interior; in strict technical usage, the circle is the former and the latter is called a disk.

A circle can be defined as the curve traced out by a point that moves so that its distance from a given point is constant.

A circle may also be defined as a special ellipse in which the two foci are coincident and the eccentricity is 0. Circles are conic sections attained when a right circular cone is intersected by a plane perpendicular to the axis of the cone.

A circle's diameter is the length of a line segment whose endpoints lie on the circle and which passes through the centre. This is the largest distance between any two points on the circle. The diameter of a circle is twice the radius, or distance from the centre to the circle's boundary. The terms ‘diameter’ and ‘radius’ also refer to the line segments which fit these descriptions. The circumference is the distance around the outside of a circle.

A chord is a line segment whose endpoints lie on the circle. A diameter is the longest chord in a circle. A tangent to a circle is a straight line that touches the circle at a single point, while a secant is an extended chord: a straight line cutting the circle at two points.

An arc of a circle is any connected part of the circle's circumference. A sector is a region bounded by two radii and an arc lying between the radii and a segment is a region bounded by a chord and an arc lying between the chord's endpoints.

A finger ring is a circular band worn as a type of ornamental jewelry around the finger; it is the most common current meaning of the word ring. Other types of metal rings worn as ornaments are also called rings, such as earrings, arm rings, toe rings and neck rings.

Rings can be of almost any material: metal, plastic, wood, bone, glass, gemstone to name a few. They may be set with a stone of some sort, which is often a precious or semi-precious gemstone such as diamond, ruby, sapphire or emerald, but can also be of almost any material.