Cube Rubik: interesting facts about the famous puzzle
The puzzle "Rubik's Cube" ("Magic Cube", "Hungarian Cube" and even just "Rubik") attracted the attention, as they say, of "all groups of the population" and got the widest distribution. The merits of this wonderful puzzle, in which both schoolchildren and academics began to play with pleasure, finding dignity in it, consistent with the level of learning, education and propensity for research, we already wrote ( see Science and Life, No. 3, 1981, and No. 2, 1982 ) and even cited the methods of solution.
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In the 70s of the last century, the architect Erno Rubik taught at the Academy of Applied Arts and Crafts in Budapest. There he planned to design a simple and at the same time fascinating manual for the development of spatial imagination of his students. Rubik made a cube of 27 parts, the components of which could freely rotate, without violating the integrity of the structure. On the first assembly of the resulting puzzle, the author spent about a month. Unusual cube fell in love with his friends and colleagues, and a year later Erno patented his invention.
In 1982 in Budapest the first official world championship on assembly of a cube of Rubik has passed. He was defeated by a student from Los Angeles Minh Thai, who figured out a puzzle for 22.95 seconds. Later there was a special term for those who collect a cube for speed - they were called speedcubes. The record of modern speedcubers is 5.55 seconds. In the Soviet Union, Rubik's cube appeared in 1981. According to unofficial data, the license for the production and sale of the puzzle cost the USSR three million dollars.