The Beijing Winter Olympics open today. The city conquers the world record as the first to have hosted both editions of the games, after the 2008 summer edition.
Among the countless challenges, China is also facing the problem of snow shortages. It seems that the Organizing Committee has accumulated more than 200 million liters of water dedicated to the ski lifts and tracks specially made.
Did you know that the production of artificial snow is still carried out today with a snow machine that uses the same principle patented in the United States in 1950, described in US2676471?
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