It is so impressive, if they are trying to measure the perimeter of the earth



所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl

送交者: 008 于 2005-1-12, 21:50:48:

回答: 埃拉托色尼妙而准确地测定了地球周长 由 HunHunSheng 于 2005-1-12, 16:39:33:

they must have known that the earth is a ball instead of a plate. How the hell did they find that out? As far as measurement goes, if their estimation falls into the same order of magnitude, it is a big success.



所有跟贴:


加跟贴

笔名: 密码(可选项): 注册笔名请按这里

标题:

内容(可选项):

URL(可选项):
URL标题(可选项):
图像(可选项):


所有跟贴·加跟贴·新语丝读书论坛http://www.xys.org/cgi-bin/mainpage.pl