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《奇幻科学城》解锁平衡力 萌娃对抗多线拔河

2017-07-21 13:14:42   中国网

奇幻博士团带你见证平衡的力量

中国网娱乐7月21日讯 生活处处皆平衡,却很少引起人的注意,本周五晚22:05辽宁卫视《奇幻科学城》将带领观众探索与人们息息相关的平衡。人体是如何做到平衡的?晕车与平衡又有什么关系?易拉罐中的饮料剩下多少就能将其倾斜放置?北京化工大学理学院副教授郎海涛受邀担任本期神奇大教授,携手博士团和孩子王红果果,带领好奇萌娃团一起揭开平衡的神秘面纱。

蜂蜜水将鸡蛋浮起 用平衡力就能放飞木棍?

没有平衡人类就无法生存,不管是人类动作还是日常生活,都离不开平衡。但生活中并不缺乏打破平衡规则的现象,比如浮力,博士团由此提出疑问“鸡蛋放入以下哪种液体中会浮起来?”部分萌娃根据自己的实验经验认为应该是白醋,有的萌娃则觉得白酒会让鸡蛋浮起来。博士团并不公布答案,而是带萌娃做起实验,发现能够使鸡蛋漂浮的是蜂蜜水,郎海涛分析到这是因为鸡蛋受到浮力的大小是由鸡蛋本身排开水的体积以及液体密度两个因素决定的,在排开水的体积相同的情况下,只有蜂蜜水的密度大到能将鸡蛋浮起。

平衡不仅实用,而且充满乐趣,利用弹力和压力的彩色多米诺“飞翔的木棍”实验震撼全场,而在随后的《奇幻科学城》第一届“萌娃拔河大赛”中,通过一条线和四条线的对抗,萌娃们不仅了解到二力平衡和多力平衡的关系,感受到平衡的神奇,同时燃起了对平衡的兴趣。

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