阿基米德怎么知道地球的?

阿基米德怎么知道地球的?
阿基米德曾经说：“给我一个放杠杆的支点,我就能将地球挪动.”
可是……那个时代的人类怎么会知道地球的啊?千百年后……哥白尼还因为‘日心说’被烧死……中国人甚至还说‘天圆地方’据说……18世纪的亚洲人在日蚀时候人们还敲锣打鼓驱赶妖怪呢!阿基米德怎么可能知道有地球呢?
2l楼答案不对!以前我也考虑过翻译有误……但是通过最近看的资料,可以肯定……阿基米德当时就是指的地球!所以后世好事的科学家才推算出来挪动地球所需要杠杆的长度是15000英里!
另外……阿基米德是古罗马时代叙拉古城的人……那个时代的文字绝对与英文有很大区别的……后世的翻译者完全应该能够区分大地与地球的区别!而不至于误导后人!（ earth、mother earth ）
况且在不知道地球的存在之前……没有人会把大地构想成一个物体!按当时人类对大地的理解~它只是一个巨大的平面而已!
总之……希望看到更有说服力的答案!不要再主观猜测了!凡是能提出有根据的见解的朋友另将追加20分!
其实分数不重要……我真的很想了解真相~

那是阿基米德自己的想法.
阿基米德认为地球是圆球状的,并围绕着太阳旋转,这一观点比哥白尼的“日心地动说”要早一千八百年.限于当时的条件,他并没有就这个问题做深入系统的研究.
在古代希腊,思想是非常开放和自由的,阿基米德增经用球体模拟出过月食和日食.所以他认为地球是圆的!
The Sandreckoner is a remarkable work in which Archimedes proposes a number system capable of expressing numbers up to 8 1063in modern notation.He argues in this work that this number is large enough to count the number of grains of sand which could be fitted into the universe.There are also important historical remarks in this work,for Archimedes has to give the dimensions of the universe to be able to count the number of grains of sand which it could contain.He states that Aristarchus has proposed a system with the sun at the centre and the planets,including the Earth,revolving round it.In quoting results on the dimensions he states results due to Eudoxus,Phidias (his father),and to Aristarchus.There are other sources which mention Archimedes' work on distances to the heavenly bodies.For example in [59] Osborne reconstructs and discusses:-
...a theory of the distances of the heavenly bodies ascribed to Archimedes,but the corrupt state of the numerals in the sole surviving manuscript [due to Hippolytus of Rome,about 220 AD] means that the material is difficult to handle.
从这段外国文献资料来看,阿基米德应该已经初步察觉到宇宙是一个system,并且有heavenly bodies的意识,虽然他并没有遗留下手稿,而他所指出的Earth并不指地球,但大概是陆地的意思.我认为阿基米德是想表达的Earth是指人类生存的大陆而不一定是地球这个球体.