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The sun's magnetic engine, called the solar dynamo, lies about 200,000 kilometers beneath the sun's surface. As it churns, that engine drives solar activity, which waxes and wanes over periods of roughly 11 years. When the sun is more active, sol

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In 1978 a chess engine named Belle won the North American Computer Chess Championship run by the Association for Computing Machinery, the engine's special hardware allowed it to analyze around thirty million positions in three minutes. Belle also h

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