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神奇太阳能电池:自动跟着太阳走

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           还记得前一段时间在网络上很红的那个关于向日葵的问题吗?“向日葵白天跟着太阳转,从东边到西边,可是第二天早上怎么回到东边?一个甩头吗?”最终答案是太阳落山后,向日葵的花盘会慢慢摆回原位。

            向日葵都那么辛苦地为了吸收更多的阳光而努力,那么人造的太阳能电池板呢?

            为了提升太阳能板的效率,太阳能电站给它们安装了电机,并用电脑计算好每天需要转动的角度。

            但这个方法太麻烦,而且转动巨大的太阳能板本身也需要动力,密歇根大学的科学家发明了一种更简单的解决方案,其中最基础的原理竟然是剪纸术。

            Matthew Shlian是密歇根大学艺术与设计学院的一名授课老师,他也是一位剪纸艺术家,同时他还是太阳能板改造团队的咨询顾问。就是他向这些工程师们展示了一种剪纸造型——在一张纸上平行错杂着剪开的切口。

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