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Symbian-Powered Nokia N95 and LEGO Solve Rubik’s Cube

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GLOBAL – ARM has showcased the Nokia N95 and a LEGO Mindstorm NXT’s ability to solve a 4x4x4 Rubik’s cube puzzle.

The N95, which even after several years on the market is a formidable device, showed off its computational abilities in a published video. The basic idea behind the principle is that the Symbian smartphone does all the calculations and passes on the instructions to the LEGO Kit which then moves the Rubik’s Cube. It is important to note that a 4x4x4 Rubik’s Cube is significantly more difficult to solve than a 3x3x3 Cube.

This is a Java application running on the Nokia N95. It communicates with the NXT using a simple control program via Bluetooth. The embedded camera in the N95 is used to capture an image of each face of the cube. The application then processes these images to determine the colour of each piece of the cube. The solution is then worked out in a couple of seconds resulting in a sequence of approximately 30 moves. The N95 finally  transmits these moves one at a time to the NXT to solve the puzzle.

Normally, it takes 3-4 minutes in real-time for the handset. The shortest time for a human to solve this same cube was recorded as 36.46 minutes, by Dan Cohen from USA, at the World Championships 2009 in Düsseldorf.

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By , International Correspondent on Feb 16th, 2010 GMT +2


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