第五六三章 木牛流马
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进知道诸葛亮的木牛,可以“人行六尺,牛行四步。日行二十里,而人不大劳。便仔细看沈默操纵那牛往前走,果然那木牛向前迈了四步的时候,人也正好走了六尺,行走步幅竟然与史书记载完全一致。
这是怎么做到的呢?欧阳必进知道那牛尾巴似的双辕,其实就是一对扛杆,起到了省力臂的作用。双辕越长,当然就越省力,所以这头看着笨重的木牛,沈默一个人就能轻松驱动得了。
而且因为它受力的两只蹄子,永远和后面操纵它的人形成一个三角,他知道,在各种形状中,三角是最稳定的。加上重心低,所以这木牛操控起来,也是得心应手。
“能载重吗?。欧阳必进虽然觉着问题不大,但还是要亲眼所见
信。
沈默点点头。问他道:“书上记载,木牛的载重是多少?”
“书上说。木牛,可载十人所食一月之粮欧阳必进道:“单人单月最少三十斤,所以怎么也得三百斤吧?”
沈默点头道:“那门头沟官窑烧的上好青砖有多重?”
欧阳必进是老工部出身,曾经主持过重修紫禁城,自然不会被这种问题难道,不假思索道:“整五斤,上下不得超过一两,否则不得出场。
“那正好”沈默道:“六十块就是三百斤,再饶上您十块。”说着下令道:“搬七十块砖来就有几个卫士搬了七块砖过来,装进木牛的背上,欧阳必进一看,确实是门头沟砖窑的货色,知道现在是三百五十斤。
沈默做个请的手势道:“部堂不妨亲自验证一下。”欧阳必进欣然应允,把双手搭载辕上,心说加上这木牛本身,怕得有七八百斤了,可得使点劲,于是用力一按,谁知那车辕依旧很省力,差点没把他的腰给闪了。
欧阳必进操着那木牛,起初动作还有些生疏,但不一会儿,便熟悉了,可以在院子进退转弯,都很自如,且并不费力,甚至单手都能驱动,且行进速度并不算慢,心说“日行二十里,而人不大劳”定然可以实现。
而且那牛腿并没有膝关节,纯粹是粗壮的圆木。虽然并没有自己的作品灵活,但定然是更实用。因为恰恰是这四根柱子一样的直腿,起到了很好的支撑作用,难怪沈默的木牛流马不存在负重难题”
一番操作后。欧阳必进完成了对木牛的实验,又转向流马。沈默给他演示一与木牛的操纵杆在尾部不同,操作流马要牵住马头,用力一按,马后腿腾空。再一拉,马后腿前行,再抬马头。马后腿站住同时前腿被拉起,再推再进。
效果与那木牛差不多,只走动作更灵活一下,相应的负重也要。
而且在史书中,流马有详细的尺寸记述,欧阳必进通过观测,发现这木马就是严格按书中尺寸制作的!更让他惊喜的是,如需木马停步时,只需把舌头一按,即可将行动机关卡死,这又完全符金芒中的记。
把两样“大玩意儿,全都折腾一遍,欧阳必进望着沈默道:“只要你能解决最后一个问题,我就无话可说,承认这就是诸葛武侯的木牛流马了。”
沈默笑笑道:“部堂请讲。”
““蜀道难。难于上青天”这东西在卑地上灵光,到了那种曲折蜿蜒的山路上”。欧阳必进道:“也能行吗?”
“那就试试呗。”沈默笑道:“前眸子下雨,把我西跨院几间老房子冲垮了,前几天从门头沟拉了些砖回来,堆在那里还没开工呢。”说着挽起那木牛道:“不如咱们操着这木牛流马,过去实验一下,看看能不能行
欧阳必进这种发明家,最反感的就是所谓的“坐而清谈”在他看来,满朝官员都是宁肯夸夸其谈一天,也不愿动手去做一下的误国之徒。所以沈默不争不辨,用事实说话的态度,实在对欧阳必进的胃口,他呵呵一笑道:“恭敬不如从命喽便牵着“流马”跟他望西跨院去了。
府中下人早的了令,除了几个卫士之外,全都不准出屋,所以一路上也没有围观群众。两人便进了西跨院,只见早一步赶过来的卫士,已经在那里将砖摆出一段三丈长、三尺宽高低起伏的“山路”模仿出蜀中栈道。
沈默找一个身体最棒的卫士,让他将三丰块砖搁在一辆独骡门推车里。让他推讨读段栈道卫十依命而行。却发甩地卜稳健如飞的小推车,一到了这种高低起伏的地方,马上就露了怯下台阶时使劲拉着,倒还能勉强凑合,可上台阶时却直接抓瞎,仅仅两块砖的高度,便怎么也推不上去。
看那卫士都憋红了脸,沈默让人上去帮忙,在前面拉车,却还是拉不上去。只好再加一人,三个人连推带拽,使尽了吃奶的力气,才将那小推车弄上台阶,正要松口气。却一下子翻了车
小推车以失败告终。下面便轮到木牛流马了,沈默操着装了六百五十多斤的木牛,很轻松便走过了这段“栈道”不论上下,基本上如履平地,没有太多的不便
欧阳必进也操着他的流马。在“栈道
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