Blue Line

Blue Line may refer to:

Transportation

Africa

Asia

Canada

Europe

United States

California

Ice hockey rink

An ice hockey rink is an ice rink that is specifically designed for ice hockey, a team sport. Alternatively it is used for other sports such as broomball, ringette and rink bandy. It is rectangular with rounded corners and surrounded by a wall approximately 1 meter (40-48 inches) high called the boards.

Name origins

Rink, a Scots word meaning 'course', was used as the name of a place where another game, curling, was played. Early in its history, ice hockey was played mostly on rinks constructed for curling. The name was retained after hockey-specific facilities were built.

Dimensions

There are two standard sizes for hockey rinks: one used primarily in North America, the other used in the rest of the world.

International

Hockey rinks in most of the world follow the International Ice Hockey Federation (IIHF) specifications, which is 61 metres (200 ft) × 30.5 metres (100 ft) with a corner radius of 8.5 metres (28 ft). The distance from the end boards to the nearest goal line is 4 metres (13 ft). The distance from each goal line to the nearest blue line is 17.3 metres (57 ft). The distance between the two blue lines is also 17.3 metres (57 ft).

Change ringing

Change ringing is the art of ringing a set of tuned bells in a series of mathematical patterns called changes.

Change ringing differs from many other forms of campanology, in that players make no attempt to produce a conventional melody, but instead ring the bells in a set of permutations. Today, change ringing can be found all over the world, performed in a variety of media, but it remains most popular in English churches, where it was developed in the 17th century. Such a church's bell tower typically contains a set of a few large church bells, known as a ring of bells, rigged to swing freely for slightly more than one revolution. The considerable inertias involved mean that each bell usually requires its own ringer and can only speak about once every two seconds—the time for a full revolution.

Change ringing is also performed on handbells and on carillons (where the bells are fixed and the clappers are pulled over) though both of these instruments more commonly play melodies.