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: 61
г : 2015
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Bitcoin is the first example of a growing category of money known as cryptocurrency. , . Bitcoins arent printed, like dollars or euros theyre produced by people. , . bitcoin () , , . , , . Andre Geim, a physics professor at the University of Manchester, discovered an unusual new material called graphene, he was best known for an experiment in which he used electromagnets to levitate a frog. , , , , [27]. (downshifting), , , ; , . , , , ( ) , , . , : Downshifting assumes a tradeoff between standard of living, such as level of wealth, and quality of life, which relates to well-being. , , [2, c.72].