上溪小学社团课程 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 华容道独立钻石魔方 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 厄尔诺·鲁比克是匈牙利的发明家、雕刻家和建筑学教授。他于 1974 年发明了益智玩具——魔方。当初厄尔诺·鲁比克教授发明魔方,仅仅是作为一种帮助学生增强空间思维能力的教学工具。厄尔诺·鲁比克魔方之父 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 魔方之父厄尔诺·鲁比克直到魔方在手时,他将魔方转了几下后,才发现如何把混乱的颜色方块复原竟是个有趣而且困难的问题。鲁比克就决心大量生产这种玩具。魔方发明后不久就风靡世界。 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 世界上第一个魔方是三阶魔方。三阶魔方总共有多少种变化? 三阶魔方别看只有 26个小方块,变化可真是不少,魔方总的变化数约等于 4300 亿亿。如果你一秒可以转 3下魔方,不计重复,你也需要转 4542 亿年,才可以转出魔方所有的变化,是目前估算宇宙年龄的大约 30倍。 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Evalu
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