第二卷 三身四智体中圆 0099 火药学讲座(2 / 2)

蝉花先生想了想,道:“其实火药的秘密全都藏在离卦之中,无论是否用法力炼制,只有微观结构符合离卦易理的药剂才有成为火药的潜力……” </p>

“何为微观结构?晚辈不太明白,还请先生指教。”司马承祯趁他还没接着讲下去,连忙提出疑问。 </p>

蝉花先生道:“世间万物都是积微至著,无论是工学,还是玄学,都要洞入精微,才能通达奥妙。极微之物必须积聚到一定程度,才能为人所见,在此之前,其所积聚出来的东西依然属于精微之物。极微积聚成精微,好比零件积聚成机器,并非没有章法,而是有其组成结构的。机器有结构,故精微亦有结构,所以精微的结构,就叫做微观结构。” </p>

“鼎中之变,精妙微纤,口弗能言,志不能喻。”司马承祯不禁有感而发,回味片刻又道,“那么请问,火药的微观结构为何必须符合离卦易理呢?” </p>

“这个问题非常好!”蝉花先生解释道,“易卦是由阳爻和阴爻组成,在微观结构中,每一卦都可以代表具有相应微观结构的精微。 </p>

就八卦而言,以上下两爻代表极微,以中爻代表把极微结合成精微的无形之力,那么中爻为阳,代表结合力稳定;为阴,代表结合力不稳定。 </p>

我们研究发现,各种火药的微观结合力都是不稳定的,无不符合离卦的结构,一旦引燃,火药的精微就会迅速分解,同时爆发出巨大的气数。 </p>

所以我们把最符合离卦结构,完全以工学方法炼成,威力极大的火药称为离精砂。” </p>

许逸冰会心一笑:“这个名称倒是挺像砂类法宝的,比如金丹砂、天蓝神砂、雷泽神砂、天璇星砂等等。” </p>

蝉花先生点头称是:“不过要深入解析不同火药的微观结构,仅用八卦的离卦是远远不够的,甚至六十四卦也还差一些,需要进一步演卦……” </p>

玄门修行常以易卦诠释法术奥妙,蝉花先生用易卦诠释火药的微观结构,可谓是非常合适,使司马承祯等人很快理解了这种高深工学炼出的火药。 </p>

子弹是火器里与火药关系最密切的部件,结构也不十分复杂,于是蝉花先生顺便把子弹的结构也讲了:“早期的子弹都是丸状,没有弹壳,装填和发射速度都很慢,火药爆炸产生的燃气也不能充分推动子弹和炮弹。 </p>

为了解决上述问题,火器工匠发明了弹壳,从此子弹便由弹头和弹壳两部分组成,弹头的形状改成了锥形。 </p>

有弹壳的子弹用到了两种火药,分为点火药和爆火药,点火药量少而敏感,受到撞击就足以使其燃烧;爆火药量大,是真正推动弹头的火药,点火药燃烧才能点燃爆火药。 </p>

榴弹箭的碰炸引信也有用到点火药,区别在于一个用在箭头,一个用在弹尾。至于炮弹的结构跟子弹差不多,我就不再赘述。游光先生还有什么要补充的吗?”</p>

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