第254章 新世界!(1 / 2)

“你们来看看这个条形磁铁,我用一根线绑在它的中心位置,再给它悬空,待它静止后,指向南方的那一端,我管它叫做磁铁的南极,指向北方的那一端,就叫做磁铁的北极。然后我分别在它的两端贴上南北极的标签,青雀,你也按照我刚刚的步骤,给另一个磁铁也标上南北极!”

醉风轩里,李泽轩提着一根条形磁铁,正在给他们四个人做着最基础的物理实验。

“好好好,泰也来试试!”

李泰四书五经读的不少,真正的实验却是从来没做过,他刚刚在一旁看李泽轩玩儿的挺开心,早就摩拳擦掌,饥渴难耐了,这时闻言,立马冲了上来。

李泽轩笑了笑,让小胖子自个儿慢慢玩,他去弄了两个小纸片,准备给手中的磁铁,贴上“N”极和“S”极时,突然一愣,这可是在唐代啊,古人哪儿知道“North”和“South”,你标一个“N”和“S”谁知道是什么意思呢?

无奈之下,他摇了摇头,只能在南北极两端写了个“N”和“B”,就用南和北的拼音首字母吧!唉,烦恼啊!后世的很多科学名词和术语都有各种英语缩写,这以后可咋办?想到这里,李泽轩不由一阵脑仁疼,看来提升大唐的科技水平,还任重道远呐!

“先生,泰也找出南极和北极了,咦~?先生,您标的这文字,是什么意思?”

李泰动手能力还算可以,没一会儿就找出了另一条磁铁的南北极,不过他看了看李泽轩标的两个字母,顿时就有些疑惑。

“青雀你还记得拼音吗?这N和B就是南和北的拼音首字母,为了标记方便,以后我们就用这两个字母代替南北极!”

李泽轩心中不由为刚刚的机智感到庆幸,不然要是写了个“N”和“S”,那该怎么解释。

“哦~!原来如此,先生这么一说,泰也觉得挺方便的!”

李泰恍然,然后他也有样学样,给他手中的磁铁标上了南北极,这时李泽轩将两块磁铁拿在手中,看向他们四人,说道:

“接下来我要给你们讲一条十分重要的定理,那就是同性磁极互相排斥,异性磁极互相吸引,不信的话,你们可以自己试试,看看是不是这样!”

“竟有这回事?我来试试!”

李鱼取过两个磁铁,开始了实验,她虽然不认识拼音,但两个字母是不是一样的,她还是能分辨出来的。

“真的是这样哎!先生,这是为什么?然后这个跟指南针能指示方向又有什么关系呢?”

李鱼把玩了两下磁铁后,就试出了李泽轩所预言的结果,然后她问道。

“为什么会同性相斥、异性相吸,这个问题你们后面慢慢想,当然你们也可以把他理解为人和人之间的关系,一般都是男的和女的成亲,你们总没看过男的和男的或者女的和女的成亲吧?”

这个问题李泽轩一时也解释不清楚啊,当时他们物理老师就只说了这是定理,让大家记住就成,至于本质上为什么会同性相斥,异性相吸,他哪知道,只能一言不合就开车了!

“扑哧!”

李鱼莞尔一笑,道:“先生这个说法倒真是有趣!”

“咳咳,至于这个定理跟指南针有什么关系嘛,我只能说大有关系。事实上,地球也可以视为一个大磁铁,其中一极位在地理北极附近,那里也可以叫做地磁的南极,另一极位在地理南极附近,也就是地磁的北极。根据同性相斥,异性相吸的原理,我们的磁铁和磁针在一定条件下,也就正好能指向南北方向。”

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