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第288章 脚踏砂轮机(2 / 2)

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“想要直接通过脚踩动,需要的力道会很大。”

“所以我用手旋转砂轮,等于是手动启动了砂轮,有了旋转的惯性,而后再踩动踏板,这样就轻松了许多。”

吴知衍和朱三两人,恍然大悟,“原来是这样。”

“师尊,是不是这样的结构,都要先给他一个外力呢?”

唐风摇了摇头,他指着固定砂轮的那根铁棒弯柄处。

“不一定,这台砂轮机,固定轴的曲柄做得较短,比较吃力。”

“如果把这里加长,启动起来就要轻松许多。”

吴知衍听了之后,又有些懵了,“师尊,这是为何?既然能够启动更省力,为何师尊要做成这种呢?”

唐风笑着看向他,“这就是杠杆原理的利用。”

“如果曲柄做得过长,目前的材料还不太行,容易损坏。”

“等以后材料强度跟上来之后,再进行优化升级。”

随后他看向朱三和吴知衍,“这台脚踏砂轮机,主要用上了杠杆原理和惯性作用。”

看见两人就要开口询问的样子,他赶忙说道,“这些原理,稍后再与你细说,现在先试试这砂轮机的效果如何。”

接着他对朱三说道,“去拿些需要打磨的箭头来。”

“是,少爷!”

很快,他就抱着一小筐箭头,到了唐风的身侧,从中取出一枚箭头,递给了唐风。

唐风拿着箭头,观察了一下,然后选好需要打磨的一面,缓缓地靠近了砂轮。

在箭头靠近砂轮的那一刻,刺耳的声音传入了众人的耳中,同时伴随着飞溅的火花。

本小章还未完,请点击下一页继续阅读后面精彩内容!火花顺着旋转的砂轮,打在了地上。

“这......”

不管是吴知衍,还是朱三,看到眼前的一幕,都瞠目结舌。

谁都没有想到,这种飞速旋转的砂轮竟然这么好用。

片刻之间,就把匠人需要打磨许久的箭头打磨得明亮光滑。

“竟然如此神奇!”

“县丞大人可真是厉害!”

其他正在忙活的匠人,看到这边火花四射,都焦急地跑了过来,不少人的手中还提着一个装满水的木桶。

当他们看着唐风右脚悠闲地踩着踏板,手中的箭头在飞速旋转的砂轮上擦过,就将箭头的一面打磨出来时,都惊得赞叹起来。

特别是那几个专门负责打磨的匠人,看到眼前这一幕,更是笑逐颜开。

他们知道,以后打磨的活计,将会变得轻松多了。

用这种法子干起活来,可真是又快又好。

“县丞大人,可以让我们试试吗?”

一个匠人跃跃欲试地看着唐风,试探地询问。

唐风将手中的箭头磨好,丢在旁边的箩筐里面,笑着对他说道,

“这就是做出来给你们用的,你们自然都得学会怎么用。”

随后他继续说道,“使用这个砂轮机,手中待打磨的物件,一定要拿紧,要不然就容易伤到自己。”

“你们注意看我手上的动作。”

说着他便又拿起一支箭头,示范起来。

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