Circle of Animals/Zodiac Heads Circle of Animals/Zodiac Heads Circle of Animals/Zodiac Heads is an artwork by Chinese contemporary artist and political commentator, Ai Weiwei. The work comes in a small (gold) and large (bronze) version. Created in 2010, the zodiac heads (a Rat, Ox, Tiger, Rabbit, Dragon, Snake, Horse, Goat, Monkey, Rooster, Dog, and Pig) are inspired by those which once comprised a water clock-fountain at the Old Summer Palace, which is a complex of palaces and gardens in Beijing that were constructed by the Qianlong Emperor of the Qing dynasty. The Old Summer Palace was eventually destroyed by French and British troops in
Circle 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 only the boundary and the whole figure is called a disc. A circle may also be defined as a special kind of ellipse in which the two foci are coincident and the eccentricity is 0, or the two-dimensional shape enclosing the most area per unit perimeter squared, using calculus of variations. The word "circle" derives from the Greek κίρκος/κύκλος ("kirkos/kuklos"), itself a metathesis