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“魔轮”是法国人亨内考在十三世纪提出的历史上最著名的第一类永动机
魔轮通过安放在转轮上一系列可动的悬臂实现永动，向下行方向的悬臂在重力作用下会向下落下，远离转轮中心，使得下行方向力矩加大，而上行方向的悬臂在重力作用下靠近转轮中心，力矩减小，力矩的不平衡驱动魔轮的转动 十五世纪，著名学者达芬奇也曾经设计了一个相同原理的类似装置，1667年曾有人将达芬奇的设计付诸实践，制造了一部直径5米的庞大机械，但是这些装置经过试验均以失败告终 魔轮由一个大轮和小轮组成，它能让使用者在路上自如穿行 魔轮魔轮魔轮主要是由一个大轮和小轮组成，大轮的直径为26英寸（约合0 66米），小轮用于稳定整个魔轮和协助改变魔轮的行进方向 它的最大载重量可以达到120千克，因此，它对于大多数人来说都是适用的 魔轮看上去像半辆自行车，不过它没有车座、车把和脚踏，也没有坐垫 它的使用方法跟滑板很相似：使用者将一只脚（通常是右脚）放在魔轮大轮子一侧的踏板上，然后用另一只脚蹬地获得前进的动力 这跟要耗油的机动车比起来，无疑是相当节能的 当魔轮获得前行的足够“马力”，使用者的身体也实现平衡时，他（她）可以把蹬地的那只脚也放在魔轮大轮另一侧的踏板上 魔轮在英国上市以来，受到民众的青睐，无论是去上班，还是出差或用来健身，这款轻便的交通工具都能满足他们的需求，还避开了交通拥堵带来的烦恼 此外，魔轮可以“随身”携带，放在办公室、汽车上等地方，使用者不用担心它会被盗 魔轮没有配备刹车装置 帕克与约翰斯顿公司说，这是因为他们经过研究后发现，魔轮魔轮魔轮不装刹车装置运行起来会更好 如果遇到紧急情况，公司建议使用者马上“跳车”抓住魔轮的手提把手，或者让魔轮自由前进直至其自然停止——魔轮不会因此破损，它是采用高质量高强度的ABS塑料制造的 魔轮后端的小轮子就是为此设计的，它可以帮助使用者在瞬间改变方向——首先，使用者要靠蹬地的那只脚拖地减速，进而用身体的扭转来实现转弯或者调头 原本魔轮只适用于12岁以上（身高超过1 5米）人群，但是自小魔轮出现后使用人群变扩大到了5岁以上（身高一米就可以玩了） 魔轮的构造经过精心设计，它的安全性比滑板一类产品要高 但是，像这一类的新型交通工具，使用者需要做好一定的安全防护措施，比如最好戴上一顶安全头盔
友情链接:
