请问杯口和杯盖上用螺纹来密封,这个方式是谁第一个发明的?很急,谢谢大家!
推荐回答(1个)
螺丝的研究—浦利尼
螺丝的奥密
螺旋型是自然界的奥秘,这个宇宙有许多的现象是以螺旋的形状出现,宇宙的星云,贝壳的形状,羚羊的双角,树木的纹路,蕨类的生长,松树的球果,灌木的分叉,向日葵花朵的排列,蜿豆的攀爬,肌肉的纹理,遗传基因的排列等都是螺旋型的形状.螺旋形的排列可以使灌木的叶子,在单位土地面积上获得最多的阳光,可以使蜿豆的攀爬获得较大的摩擦力,使植物的纹路纤维增加抗拉力与抗风力,球果的每颗种子增加的结合力.
螺旋的起源
在历史上,人类由大自然的螺旋状物体中也获得不少的制造灵感,例如建筑的回旋楼梯,儿童的滑流梯,理发店的招牌,柱顶的螺旋纹筛,陶制品的螺旋塑造,头发的螺旋编织与螺丝的螺纹等都有螺旋型.
早期的人类就有使用螺旋状来制造螺丝的记录.阿基米德(Archimedes, 287-212 BC)就用螺旋制成取水器,在上端旋转转轴,藉著螺纹的旋转力,产生一个向上的力量,将低下的水取上来,这可能是人类最早使用螺纹原
理,制成的取水工具.
不过最早提到将螺纹制成螺丝的是西元一世纪的浦利
尼(Pliny, 23-79).
有趣的元帅
浦尼利是一个非常有意思的人,他是一个军人,而且是担任过罗马帝国非洲军团的司令,他曾带领军队在地中海两岸打过很多战争.浦利尼白天在军队里当元帅,晚上就在图书馆看书,并且一边看书,一边作笔记.军队行
军之馀,他也四处观察.浦利尼在西元七十七年,出版了「自然历史」(Natural History)三十七大本的百科全书,这是人类历史上第一套的百科全书,百科全书的英文「Encyclopedia」,就是他先取的.百科全书原来的字义并不是参考资料全集,而是给[一般人的教育](general education)的意思.这套百科全书中就首先提到「螺丝」的人.
下坡容易上坡难
螺丝的构造是几道的螺纹,绕著垂直的轴.螺丝的上面有著螺帽,以螺丝起子在螺帽上旋转,螺丝就可以往下钻.螺丝的奥妙就在这里,只要将螺丝再下旋转几下,旋转的扭力就可以转换成很大的阻力,使得螺丝要固定的
东西不容易松开.能将扭力转成阻力就是螺丝的功用.
螺丝的阻力是来自螺旋的纹路,螺纹好像是一道长弯的斜坡.爬山的人都有这经验,在山上顺著弯曲的斜坡上跑下来,非常的快,但是在山下要沿著弯曲的斜坡跑上去,就非常的累人.螺旋的纹路,就像是一般绕著转的斜
坡,要转下去很容易,要推上去就很困难.螺旋提供方便之一就是在最小的空间里,能轻易的产生很大的阻力.
不要低估一颗小小的螺丝,如果钻对地方,是可以发挥很大的功效.也许宇宙的形成,生物生长的奥秘,都放在螺旋的结构上,这个世界太有趣,太值得人去思索.
望采纳
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