第299章 嘴瓢(2 / 2)

姚长生闻言嘴角直抽抽,“你我之间说话不需要那么客气吧!”

“要的,要的。”陶七妮抬头看了他一眼道,“这样经常说,说到自己都信了,才不会嘴瓢。”

“你这样?”姚长生犹豫地看着她小声地说道,“会不会不甘心,明明功绩是你的。”

“我不在乎那虚名。”陶七妮放下手中的竹签,抬眼看着他道,“倒是你,抄写那些你不喜欢看得书,抱歉了。”

“谁说我不喜欢看了。”姚长生闻言立马反驳道,“抄了那些农书、医书,算学,我感觉上辈子……”在心里懊恼,刚才她还提醒别秃噜嘴了,自己到先,看着神色如常的她又道,“读了这么多年书,想沉下心来做些实际的、对百姓有帮助的。”双眸神采奕奕地看着她,“别看只是小小的一个水车,里面涉及的术数知识也不少。”

“嗯哼!”陶七妮闻言点了点头。

别看是一个小小的水车,里面却涉及了比较深奥的力学知识,譬如浮力和杠杆原理等。

陶七妮画的脚踏水车的总长度在5米以上,纯木质结构,连一根铁钉都没有使用。

水车的身子相当于一个半封闭的长木盒,两头都有开口,一头吸水、另一头出水。

木盒里面是一片片正方形的小木块等距离地连接在一节节的活动木连杆上,木盒两头各有一个可以转动的、带有木制齿轮的粗轴,活动木连杆上的小木块则恰倒好处地镶嵌于齿轮之间。

吸水那头的粗轴是被封在水车内部的,而出水这头的粗轴是横穿水车头部的,两侧各穿出的长度也就是100多公分,在这穿出头部的粗轴上均匀地镶进了一排排、一圈圈的脚踏板。

如果粗轴旋转,那么水车中的那些小木块就十分连贯地跟着转动起来了,假如把吸水那头放在河里或是塘中,就会随着木块的转动而将水源源不断地提了上来,这种提水原理和电影胶片的制作原理很是相似,它们都很好地诠释了暂留和连续的科学道理。

“你打算现在就做吗?”姚长生看着她追问道。

“嗯!赶在夏收前做出来。”陶七妮抬眼看着他认真地说道,“收完麦子打算种高粱,老天爷不下雨的话,就得人力浇地了。”话落轻叹一声。

“怎么有什么问题?”姚长生看着烦恼的她问道。

“这么费劲巴力的下功夫,亩产才增长个三、五十斤,太少了。”陶七妮极其郁闷地说道。

“那你想亩产多少?”姚长生饶有兴致地看着她笑着问道。

“当然越多越好,亩产千斤。”陶七妮看着走进来的沈氏笑着说道。

沈氏挎着竹篮子蹬蹬疾步走到陶七妮身旁,伸出手,灰扑扑的都是土,于是用手背搭在她的额头上,“不烧啊!”

“娘,我没病。”陶七妮拂开她的手道。

“没病怎么说胡话啊?”沈氏看着她好笑地说道,“亩产千斤,这怎么可能呢!俺对现在麦子的长势非常满意,能保持到都被收回家里。”放下手中的竹篮子,双手合十看着万里无云的天空道,“俺就谢天谢地。”

“娘,坐。”陶七妮拉着她坐了下来,看着地上竹篮子中的野菜,“您又去挖野菜了。”

“嗯!”沈氏点点头看着她说道,“现在野菜最新鲜了。”

“陶婶。”姚长生站起来看着她道。

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