Spin

Spin or spinning may refer to:

In mathematics, science and technology

Head

A head is the part of an organism, which usually comprises the eyes, ears, nose and mouth, each of which aid in various sensory functions, such as sight, hearing, smell, and taste. Some very simple animals may not have a head, but many bilaterally symmetric forms do. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nervous tissues concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the anterior region; these collectively form the head.

Human head

The human head is an anatomical unit that consists of the skull, hyoid bone and cervical vertebrae. The term "skull" collectively denotes the mandible (lower jaw bone) and the cranium (upper portion of the skull that houses the brain). The skull can also be described as being composed of the cranium, which encloses the cranial cavity, and the facial skeleton (includes the mandible). There are eight bones in the cranium and fourteen in the facial skeleton.

Headspin

A headspin is an athletic move in which a person balances on their head while rotating along the vertical axis of their body, usually without any other form of support. The move is commonly employed in the Afro-Brazilian martial art Capoeira and in breakdancing. Though b-boy Kid Freeze is sometimes credited with having invented the headspin, the first known footage of the move is seen in the 1933 film, Wild Boys of the Road. One of film's protagonists Edward 'Eddie' Smith, played by Frankie Darro, performs a Headspin at the 67 minute mark. There is also an older video featuring a headspin "A Street Arab" Thomas A. Edison, INC April 21, 1898 in which a preadolescent boy, dressed like a street urchin, performs acrobatic stunts for the camera. The dancer, Olav Thorshaug, performed Norwegian hallingdans shows in the United States of America around 1910-1920, incorporating the headspin in his dance.

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