Sunday, April 15, 2012
O'Neill Wetsuits History
Saturday, March 26, 2011
Wednesday, September 15, 2010
The fascinating history of handball
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Variations on the game of handball were played around the world for thousands of years. Known as one of the oldest ball games, handball has been played in Egypt about four thousand years ago, in ancient Rome, and many cultures of South America.
The ancient Egyptians played a variety of ball games. Drawings of Egyptian handball show was five thousand years to decorate tombs at Saqqara, the girls in teams of two found the game. Balls in the EgyptianHand balls are designed to be both lightweight and strong - were made by a skin of leather stuffed with hay or other vegetable fibers such as papyrus.
In the Roman Empire, the game was called ludere expulsim and was invited sphaeristas playgrounds. Alexander the Great have spread in charge of broadcasting the game between the Greek colonies in Italy in the first millennium BC, and from there to other countries of the Roman Empire. Details on how the game was playedthis period are incomplete, but believed it was similar to what is known today as a wall handball.
In France during the Middle Ages the game was popular with the name Jeux de Paume (palm game) and has been with both nobility and peasants. The ball was made of pieces of cloth sewn together tightly coiled done, and as the game develops gloves were used to allow greater hit the ball. This form of handball is considered a precursor of tennis - as the game developed in France,The players began using gloves bigger and bigger until it finally began to use objects that resembled snowshoes soon.
In America, handball over three thousand years old and comes from Mexico. Handball players are represented painted ceramics, sculptures and murals found in archaeological sites in many parts of Central America. The games played by these ancient cultures, is the one that best meets the modern handball Rebotea one hand pelotaHard or "Hard Ball Pelota bounced in hand." This game has been played by the people who use Chichimeca court measuring 20 feet by 40 feet. Many sites of ancient ruins in Central America, including dishes like, and together with the variety of art that represents the game show that was an important part of life of these ancient cultures.
These days, an increasingly popular sport handball - was a part of the Olympic Games, and many international tournaments are dedicatedHandball - Not surprisingly, the Egyptian team, known for being very talented, perhaps because of all the civilizations of the world have played the longest!
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Friday, June 25, 2010
History of Muta
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Neoprene suits are used in a variety of water sports for the conservation and body insulation. Hugh Bradner suit is the rule as the inventor of the modern. History mute can not really find the person who invented the first wet suit, however, was a physicist, Bradner and SIO, along with UC-Berkeley came up with the concept of using hot water to keep the body warm. He knew that water was a conductor of heat better than air.
Originally mutehad no supporting material and had to be very careful when you are outside dressed like the gum stuck to the skin. Were also tears easily. To avoid this would be to use divers talcum powder, rubbed by the suit, helping the skin on a simple sheet of rubber. Later nylon liner film was produced, but the dress still exposed to the side of rubber, and it was just hard and stiff, has been very limitedFlexibility.
The first suits used together, traditional ways to sew the strips that did not work very well. Based on changes in the punch thread for mounting, causing water to flow through and elongation of the foam seams taut and silent would feel cold to those seams. This type of stitching together a suit and dress slight crack at the seams.
Today, the seams are glued and bonded. After manyThe experiments were made with a closed cell neoprene suit, neoprene gas is a synthetic rubber with lots of small bubbles of nitrogen. Neoprene is very lively and helps swimmers stay afloat, which is why they use some surf mute. Nitrogen gas has a very low thermal conductivity, reduces body heat and keep a thin layer of water between the body and the wetsuit warm enough to prevent hypothermia divers, often in hot water. Theneoprene wet suits tend to lower buoyancy of the diver loses, as also compresses the bubbles in a loss of thermal protection. An outline must be a good fit to function properly when changing the skin is too large, may lead to lose the suit, hot water between the suit e. Some packs can be obtained, the merino wool and titanium fibers to be used to add enough heat to match.
However, the suit has not been used in Europe at this time. TheEnglish and French is used a natural sponge rubber, which was lined with jersey, Siebel product developed by Gorman, dress, Heinke Dolphin Gorman were produced in green and white women and men. In 1960, Britain began producing a pack Aquaforte designed by Dunlop Sports, Suit, this was designed more for the safety of divers. The design did not take long and soon returned to wet suits black types. During the 70 years began to besee the kind of dumb that we see today. That's the colors were more than black, but black is still used in most military operations. Currently, wet clothes were developed with a double-backed neoprene, so that the foam was between two protective layers, wedged increases the tensile strength of the material. Since the 80s, mute from a greater number of bright colors including fluorescent lamps, which can be seen very often.
Today, even children asyoung and old to see the child, particularly older children wearing wet clothes on the beaches around the world. Suits are available in many different strengths, depending on whether they offer. Several suites are named entities and thin because they offer a minimum protection from jellyfish and corals.