Winter Sports:
Winter sport is sport, which is played on snow or ice. Most of these sports are variants of skiing, ice skating and sledding. Traditionally these were sports played in the cold region during the winter, but only artificial snow and ice to allow greater flexibility. The common individual sports include cross-country skiing, downhill skiing, snowboarding, ski jumping, speed skating, figure skating, Luge, skeleton, bobsleigh and Snow scooter. Common team sports include curling, ice hockey and Bandy. Winter sports often have their own multi-sports tournaments, such as the winter Olympic Games.
History:
The physical mechanics of ice skating:
Ice Skating:
History:
Federico Formenti studies at Oxford University, suggests that the earliest ice skating in southern Finland about 4000 years ago.Originally, skates sharpened, flattened bone strapped have only been in the bottom of the feet. In fact, skate on the Ice skaters, but rather slid on it. True skating emerged when he used a steel knife with sharp edges. Now let into the ice skating instead of gliding on it. Add a border or the Dutch in the 13th. and 14. invented roller skates. This ice or roller skates are made from steel, with sharp edges on the bottom to support the movement. The construction of modern ice or roller skates is largely remained the same since then.
In the Netherlands, skating was considered good for all kinds of people, as well as in many pictures by old masters. James II of England and the Netherlands in exile, fell for the sport. When drinking hot chocolate and danced around the room, singing about his love for skating. When he returned to England, this "new" sport was introduced to the British aristocracy and was quickly, that people from all areas of life. [Who?] that Queen Victoria I know her future husband, Prince Albert, in the form of a series of ice skating trips, he says.[quote] In the meantime, the staff of the Fenlandagricultural masters of ice skating [citation].
However, in other places, participation in ice skating was limited to members of the upper classes. Emperor Rudolf II, Holy Roman Empire enjoyed ice skating so much he had a large ice Carnival constructed in his court in order to popularise the sport. King Louis XVI of France brought ice skating to Paris during his rule. Madame de Pompadour, Napoleon I and Napoleon III soon Stuart, inter alia, the Royal and the upper class fans of ice skating and ice hockey.
However, in other places, participation in ice skating was limited to members of the upper classes. Emperor Rudolf II, Holy Roman Empire enjoyed ice skating so much he had a large ice Carnival constructed in his court in order to popularise the sport. King Louis XVI of France brought ice skating to Paris during his rule. Madame de Pompadour, Napoleon I and Napoleon III soon Stuart, inter alia, the Royal and the upper class fans of ice skating and ice hockey.
The physical mechanics of ice skating:
Because the work speed skating facility at the bottom of skate shoes with very little friction can slide over the surface of the ice. However, the tilt in the sheet, and one of the tips in something ("rock in and bite") gives skaters the ability to increase friction and control their movement on the dig. In addition, by selecting move along a curved path and bent their bodies and their knee bending radial skaters used to control gravity and increase their dynamism. You can also create the speed of the knife against the curved path that leads to the ice. Skillfully combining these two actions, he leaned back and pushed — a technique known as "drawing" — effortless and graceful curvilinear flow results in what's on the ice. How to develop low-friction surface is not exactly known, but there is a large amount of knowledge. They are explained below.
Experiments show that the ice is the minimum kinetic friction at −7 ° C (19 ° F), and many in the figure skating rink, their system similar to the temperature.Low amount of friction actually observed it was difficult for physicists to explain, especially at lower temperatures.On the surface of any body of ice at a temperature of about-20 ° C (crystalline ° F), there is always a thin layer of liquid water, moving in a thickness of only a few molecules to thousands of molecules. This is because the sudden end of the crystalline structure is not the most entropically favorable possibility. The thickness of the liquid layer is almost entirely dependent on the temperature of the surface of the ice, with a higher temperature produces a thicker layer. Skating is possible, however, in temperatures of-20 ° C, far less than the temperature at which there is no liquid film of course common. When the blade of an ice skate on the ice, the ice undergoes two kinds of changes in the physical state and a change in temperature of the kinetic friction and heat of melting.
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www.game.co.in
www.topix.com