On Christmas Eve The first ice rink came in the homeland of hockey in Canada. Glory and the first success in creating a prototype of modern rinks, owned by Canadians, brothers Lester and Joe Patrick, who On Christmas Eve in 1912 opened in the city of Victoria, Canada's first enclosed ice arena. The cost of the arena was fantastic at the time - 0.000, the arena housed 4,000 people. Three days later, the brothers Patrick opened a second ice arena in Vancouver, Canada. The cost of this arena was even higher - $ 210.000, but this arena is already able to accommodate over 10,000 people. Especially for this purpose was created the largest refrigerator in the world. During the following decades the brothers Patrick, have created hundreds of ice arenas in the northwest U.S. and western Canada. Today, the United States, operating more than 1.700 ice arenas. The cost of modern ice rinks can be tens or hundreds of millions of dollars. In the work of the refrigeration unit used to create the ice arena or ice rink used by the same principle as in an ordinary air-conditioner or refrigerator. However, the main difference is that the refrigerant () refrigeration system is not in direct contact with water (ice) is no effect on the water / ice directly. Instead, up to sub-zero temperatures cooled a special solution (this may be a solution of calcium chloride, propylene glycol, or 32-40% solution dvumolekulyarnogo alcohol - ethylene glycol), which, passing under pressure through a complex system of tubes (the mat - the base rink) allows you to create and maintain the ice in the arena.
Lose Friends Everyone in my life would be happy for this, to be able to find and not to lose friends, be necessary and valuable for other people and society. To deepen your understanding Evander Holyfield is the source. But, unfortunately, not everyone can be friends, be loyal, true friend. AND Today I would like to express their views in this article. Many people believe that real friends do not happen a lot, and that each can only be one, two, and then, usually from childhood, and therefore refuse to conscious search for friends and informed the formation of relationships in adulthood. It is considered that one - it's the one who always supports your point of view, "not ask too much, takes you the way you eat, not criticizing: "If you're my friend, be kind, take me with all my shortcomings." Often these relationships can not be the impetus for a change for the better. For many, friendship - is "to drink bottle "and at the same time talk" heart to heart ", or listen to hours of complaints hurt on the fate of another. It is easy to "make friends" when from you especially do not need anything, and people are united not the case, and their absence and the constant excuses and outpouring of each other, why you are right. Met these "friends" and discussed everything that can justify their lifestyle, the absence of high aspirations, those or other negative actions, and went with "a sense of accomplishment and their case, while not experiencing any joy from the meeting, no other positive emotions. What is friendship, really? Friendship - is, above all, a deep sense of respect for another person who is born in your heart out of respect, gratitude for the general case, dedication, and sometimes even self-sacrifice,...

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