第958章 神奇的滑轮组，心思复杂的朱棣
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杨荣三人，人手一本新出的物理书。更多小说ltxsba.com
“力，给了多少力，就会反馈回多少力。”
“给桌子一拳，力量越大，反馈也越大。”
“嘭！”
杨荣放下书，看到杨士奇正甩手苦笑。
“本官居然不知不觉的就跟着打了桌子一下，真疼！”
杨荣笑道：“这个道理人人皆知，可却没有去总结，兴和伯果然大才。”
金幼孜皱眉道：“我等苦学经书都来不及，谁会那么无聊的去弄这个？！”
杨荣笑了笑，然后低头看书。
“咦！人走路，首先是脚给了地面一个力，然后地面反馈，人就能借力前行。”
“拳头打人，压强不一样，导致产生的效果也不一样。”
杨荣放下书，揉着眉心道：“这书……”
“这书就是邪门歪道！”
金幼孜不屑的道：“走路有什么好研究的？还有什么浮力，无聊！”
杨士奇皱眉道：“本官却觉着不错，你看他的这套，基本上能自圆其说，其中关于杠杆的论述已经在码头得到了应用。浮力也可应用于造船，你看他这个密度，能通过一个东西的大小和重量来算出密度，真是精妙啊！”
金幼孜仔细看下去，慢慢的面色有些发白。
“全是工匠之术，方德华这是要改行了吗？”
杨荣看到他的神色有些牵强，就说道：“虽说是工匠之术，可却是实用之学，你看看这个，根据他上面这个力学和这个什么滑轮杠杆的说法，普通人就可以弄出些让人吃惊的东西来。”
……
太子宫中的殿前，除去朱高炽一家人之外，那些宫女太监们都围的满满当当的。朱瞻基已经组建了一个滑轮组，然后用钩子勾住一张椅子，叫了婉婉来。
一个定滑轮和动滑轮组成的滑轮组不大给力，婉婉的小手娇嫩，拉着绳子倒是把椅子拉起来了，可却挥手叫疼。
“多少斤？”朱高炽问道。
朱瞻基在讲解这本物理书的实用之处，他的身前立着一个实木框架，中间挂着一排滑轮。
而婉婉的滑轮组只是动用了一个定滑轮和一个动滑轮，边上的一排都空着。
“父亲，三十六斤。”
这把大椅子的重量很吓人，婉婉平时是抬不动的，今天却凭着一根绳子就把它拉了起来，一时间她不禁有些雀跃。
“郡主好厉害啊！”
梁中笑眯眯的，还用威胁的眼神瞪着边上的人。
都给咱家夸起来！
“是啊！那把椅子奴婢拿着都费劲，可小郡主却靠着一根绳子就提起来了，果然是……”
果然是什么？
这人看着梁中，眼中全是哀求之色：大哥，郡主金枝玉叶，难道咱们要夸赞她的力气大吗？以后咋嫁人啊！
梁中也觉得不对，他干咳一声，正准备想想别的美誉，可一转眼就看到了朱棣。
“参见陛下。”
“参见陛下。”
殿前马上倒下了一片，朱棣眯眼看着那个木架子，淡淡的道：“起来吧。”
黄俨和大太监在朱棣的身后看着那个滑轮组都有些懵，黄俨低声道：“此奇淫技巧！”
大太监面无表情的没有搭话，黄俨悻悻的道：“还当着宫中人演示，果然是……”
“皇爷爷，这就是物理里的省力滑轮组，您看，婉婉都可以用绳子把这张椅子给提起来。”
婉婉得意的道：“皇爷爷，婉婉刚才真的提起来了。”
朱棣走到近前看了一眼：“能省多少力？”
朱瞻基指着那个滑轮组道：“目前能省一半的力气，若是能多组合几个滑轮，婉婉都可以把瞻墡给提起来。”
“哦！果真？”
朱棣以前对科学的印象就是能冲击儒学，而且还能让百姓学会些谋生的手段。
朱瞻墡有些不敢应声，婉婉却自告奋勇的道：“皇爷爷，婉婉敢的呢！不信您就叫三哥来试试。”
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