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第58章 火烧水激凿石法(1 / 2)

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“啥办法?”里正眼睛亮了。

姜未看向赵铁柱,淡声吩咐道:“铁柱,麻烦你捡些柴火来,在石头边上架起火烧。”

言罢,又看向刘大刚,“大刚,你去山下我家院子里挑两桶水上来。”

“哎,好嘞!”即使不知道姜未要干什么,刘大刚还是爽快地应下了,转身就下山。

“晓晓娘,为啥要捡柴火烧石头呢?”赵铁柱却是一头雾水,一副傻不愣登的模样,半天没动作。

赵有才直接往他脑门上拍了一巴掌,“行了,傻小子别问了,赶紧跟我去捡柴。”

边上都是现成的树枝干草,父子俩没一会儿就捡了一大堆干柴过来。

姜晓晓看着她娘将柴火全部堆在那块大石头旁边,然后掏出火折子点燃,大火很快燃了起来,渐渐将那块大石通红起来。

她不觉了然一笑,原来她娘是想用这种方法来破开石头啊……

一群人在边上看着,一脸疑惑,但好在没有像先前一样找茬提出各种质问。

随着大火的燃烧,那块大石头烧得愈发通红火热,热烘烘的,烟雾缭绕,没有人敢上前。

这会儿下山挑水的刘大刚也回来了,“晓晓娘,我水挑来了,要咋做?”

姜未看了一眼烧得无比滚烫的石头,指着道:“把水泼在石头上。”

其他人闻言,心头疑问越发深了,刚升起来的火,咋又要泼灭呢?

刘大刚照做,把一整桶水猛地泼在通红滚烫的石头上,清冽的水流激上去的一瞬间,随之发出“嘭”一声巨响,石头竟然裂开了大大小小的缝隙!

大伙惊呆在原地。

“这、这是咋回事?!”

“好好的石头咋就突然裂开了?”

“……”

“这是一种火烧水激的开凿矿石法。”姜未淡声解释道,“我曾经在书中看过,先用大火把岩壁烧得通红火热,然后再用冷水泼,热胀冷缩岩壁破裂,石块就裂开了。”

“原来是这样啊!”

众人纷纷恍然大悟,虽然大字不识一个的他们没有听懂姜未说的什么热胀冷缩道理,但并不妨碍他们对姜未的敬佩,“晓晓娘不愧是识字读过书的人,就是厉害!”

方才跟着李大勇发牢骚的几人,此刻都羞愧得低下头。

他们这些庄稼人泥腿子,怎么敢质疑人家读过书的人呢?

看着大伙对着自家娘亲露出赞叹的表情,姜晓晓心头忍住笑,其实这方法不算冷门,在她前世学生时代的物理课本上就介绍过火烧水激开凿矿石之法,利用石头本身突然冷却后的不均匀收缩,内应力使其破裂。

大伙兴高采烈地纷纷捡起工具,石头裂开了缝隙,后面的事情就好做多了。

几个力气大的汉子用石锤将铁楔子沿着那些缝隙打入,用力敲几下,石头如松软的豆腐一般,一块一块裂开散落在地。

石头被打成小块,搬运自然就不成问题。

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