单词：eratostheness
音标：[,erə'tɔsθəni:z] ；
Eratosthenes
[,erə'tɔsθəni:z]
埃拉托色尼(公元前276?～前195，古希腊地理学家、天文学家、数学家和诗人)
[,erə'tɔsθəni:z]
埃拉托色尼(公元前276?～前195，古希腊地理学家、天文学家、数学家和诗人)
单词：eratostheness 相关文章
How big a stick would you need to measure the planet? A thousand miles long? A million? How about three feet? That ought to be enough to do it, as an ancient Alexandrian man named Eratosthenes figured out. Eratosthenes was a multi-talented man who li
发表于:2019-02-23 / 阅读(206) / 评论(0)
英语时差8，16
英语时差8，16
On our last program we discussed a simple experiment run by an Alexandrian named Eratosthenes in the third century B.C. By noting that, at the same time of day, sticks in the ground cast different-length shadows depending on whether they were in a no
发表于:2019-02-23 / 阅读(137) / 评论(0)
英语时差8，16
英语时差8，16