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第202章 公开课(2 / 2)

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“好了,任务既然下达完成,那么我们就继续上课吧,接下来三节课,数学,物理,化学,都由我来讲……”

这一天,一个全新的世界,正在慢慢从迷雾中展现到三人眼前,冲击着他们固有的思维与想法。

后来这天被定为《全民读书》。

上午两节课结束后,下午的《物理》和《化学》这新颖的闻所未闻的学科更加让他们兴奋。

中午饭后,一帮人又在学堂门口聚齐,这次李景带着他们从楼梯上了二楼。

二楼比一楼要空旷很多,只有四个方形大桌子,讲台上是个实验台。

他们人少,就围着一张方桌坐下。

“我们先聊聊,什么是物理。”李景也在方桌边找了一个空位坐下。

“马车大家都坐过吧,那么大家有没有想过车轮为什么要是圆的呢?”他笑眯眯的问。

这个问题,大家之前倒是没想过。

不过,在场的都是聪明人,稍微思索片刻便有想法。

\"是为了防止马车颠簸,让大家坐的舒服?\"箫盈有些不确定的回答。

“是为了更快吧。”赵文轩拧眉思索片刻说。

李景赞赏的看他一眼,肯定了他的答案:“没错,车轮制造时,以受力、运动和不同接触地面的影响等因素出发,就是说,车轮与地面接触少,就容易转得快,如此就要把轮子做的越圆越好,这是力学。”

李景“啪”的一下拍了下桌子,吓众人一跳:“听到了吗?这是声,你们有没有路过乐坊之类的地方,里面的乐声听到过吧,还有边关的号角声。”

“那么声又是怎么发出的呢?是通过物体的震动产生的声波,由介质传播,”

“戒指?是扳指?”箫盈不解。

李景拿起炭笔,在纸上写下“介质”

“比如我们呼吸的空气,茶杯里的水,这都属于传播声音的介质。”

“这是声学。”

“还有像平日里点的煤炭,厨房里添的柴火,我们可以根据不同的火光颜色判断火候和温度高低,这是热学。”

李景不想再讲下去了,最后直接总结:“我提到的这些都是物理,我们的生活中包含很多物理相关的知识,而我们为什么要学物理呢。”

三人眼光炽热的看着李景。

“如果想让我们生活的更加好,那么物理就是基础。”

头一回接触物理的三人听的一愣一愣的,想必要消化两天才行。

“做个小实验来结束吧。”

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