Contoh Teks Descriptive Bahasa Inggris Lengkap

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Rubik’s cube

Rubik’s cube is a toy puzzle designed by Erno Rubik, an architect and professor at the University of Budapest. It is a cube-shaped and contains of smaller cube pieces with six sides having different colors. The cube was so popular during the 1980s, and at its peak between 1980 and 1983. 200 million cubes were sold world wide. In the solved condition, Rubik’s cube has six faces which all of the colors are same. The Rubik’s cube has red, yellow, blue, green, white, and orange color. The edges and corners move when the cube is rotated and the cube becomes scrambled. The challenge of the puzzle is to solve each cube to the original position.
There are many solutions to solve the Rubik’s cube. Lars Petrus, Jessica Fridich, and Shotaro Makisumi, are people who created the solution to solve it. A common solution used by cubers was developed by Jessica Fridrich, a professor at the Department of Electrical and Computer Engineering at Binghamton University. It uses a large number of algorithms, especially for orienting and permuting the last layer. The cross consists of one color is done first and then continue to make second and first layer by F2L (First 2 Layer) algorithms that consist of 41 algorithms. The next step is to solve the third layer by OLL (Oriented Last Layer) and PLL (Permutation Last Layer). Fridrich’s solution requires learning roughly 120 algorithms but the Cube can be solved in only 55 moves on average.
There are two kinds of Rubik’s cube, DIY and Original Rubik’s cube. DIY (Do It Yourself) Rubik’s cube is the cube that can be assembled and modified by ourselves. The core of it made up of bolts; so we can arrange the bolts to get a comfortable Rubik’s cube. Types of DIY Rubik’s cube are, A type, C type, and F type. Every type has different advantages for cubers. For the example, F type is a lightweight Rubik’s cube and it almost can’t be pop out. It is suitable for a stylish cuber. C type has a good material and it suitable for a rush cuber. The second type is Original Rubik’s cube or we can call Ori Rubik. Ori Rubik is the cube that can’t be assembled or modified by ourselves. The core of this made of nails. Ori Rubik is suitable for a beginner cuber that’s training their fingertrick.

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