第二百三十六章 硝石和铅矿
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学堂中，众人全部看向萧铭，包括罗信也是满含期待。龙腾小说网ltxs520.com网
现在青州的火炮属于滑膛炮，也就是直射炮，在古代枪械是火炮的缩小版，也正因为此，三点一线的原理同样适用于枪械。
不过这三点一线不是说随便安装一个准星和照门就可以了，不同枪械的准星和照门都不一样，这都需要测试，毕竟不同火炮的威力，炮弹重量也不一样。
所以，他的火炮同样需要测试之后拿到数据才能安装精确的准星和照门。
“这所以然就是抛物线原理，炮弹在射出去的时候会受到重力的影响。”萧铭说道。
他这话说出，整个学堂的人都露出迷茫的神色。
望着一张张迷茫的脸，萧铭忽然有些心累，这就是他开设学堂的目的，这事不是三两天就能教会罗信的。
先他还得教他们加减乘除，接着再从基础物理开始讲起，达到初二物理水平就可以了，他估算了一下，即便以他科技晶石的优质，也得接近一个月的时间能让罗信这些人学会如何计算弹着点，完成准星和照门的测试。
当然，这准星和有照门的火炮他是不会卖出去的，而是留给自己用，一旦有了准星和照门，这就等于是一次科技升级。
两军对垒，这火炮的优势就会立刻凸显出来。
“殿下你说的这些，我们可都不懂。”罗信毕竟是武将，对这些知识也很头疼。
“学了你就懂了。”萧铭不理会罗信，他不准备再和罗信说这天圆地方之说，反正这个家伙是6地上走的，学了没多大用，对岳云倒是必须说这个事，好在岳云孺子可教，比罗信强多了。
接着他开始从基本上的数学讲起，将基本的阿拉伯数字写在了黑板上，未来的航海中，岳云同样需要进行数学计算确定方位，所以，同样也得学习这个知识。
一天的剩下的时间，萧铭基本上是在学堂中度过，从简单的阿拉伯数次到十以内的加减法，再到更加复杂的计算方法。
因为都是成年人，拥有学习的主动性，这下午的课程效果倒是不错，而且因为科技晶石的作用，他们倒是记住了大多数的内容。
到了傍晚，萧铭让6通为岳云等人安排食宿，吩咐罗信每日下午都要过来听讲之后才回了王府。
此时，天色已经有了些朦胧的暗色，他这时准备回去，忽然看见一个人从博文学院门口急匆匆向走来。
“大富！”萧铭看清楚此人，惊喜道。
来人正是钱大富，一看见萧铭，钱大富立刻说道：“殿下，硝石矿终于找到了，而且，我们还找到了铅矿！”
“什么，真的吗？”萧铭大喜。
“是的，殿下，我们终于找到了。”钱大富以前是个胖子，现在是又黑又瘦，此时他面色激动。
萧铭同样激动，他说道：“太好了，大富，你立了大功了。”
“只要不耽误的殿下的事情，老奴就高兴了，至于这功劳，老奴真的不在乎。”钱大富笑着说道。
萧铭心中一阵感动，这钱大富是他完全相信的一个人，所以才将寻矿的重任交给他。
现在他缺少的就是资源啊。
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