Let's play with Cube with JJangsaem 333cube

책 소개

The 3x3x3 Cube was first made by Professor Erno Rubik, a professor at the University of Budapest in Hungary. While explaining three-dimensional design to students, he wondered if there was an easy way to teach them the concept of three-dimensional space. At first, he made several cubes with paper, colored them, and connected each side to explain, but it was very hard because it didn't turn. While walking along the beautiful Danube River, thinking about “How can I make each side of the cube turn?” he came across a pile of stones by the river. 'Wait! Those stones are stacked well without falling. Aha! If the cube's corners are interlocked like the shape of the stacked stones, the cube will not be crumpled even if it turns.’ The professor first cut the wood and made a 3x3x3 cube. Then, he colored each side of the cube and turned it around. The cube worked very well. However, after the professor turned the cube, the color of it was mixed on every side. It was hard to solve it. The professor thought and studied for a long time and finally solved the cube. He was so happy and had a lot of fun after solving it. The professor thought, 'I should make more so that other people can try it.' he made more cubes and recommended it to the people around him. People who got the cube began to fall in love with a new toy, and more people began to look for the cube. The cube's popularity lasted so long that everyone wanted to play with the cube. Try to solve the Rubik's Cube!!

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