首页
登录
职称英语
According to the professor, what were, the beliefs of the Greek philosophers bas
According to the professor, what were, the beliefs of the Greek philosophers bas
游客
2024-10-26
48
管理
问题
According to the professor, what were, the beliefs of the Greek philosophers based upon? [br]
In ancient times, many people believed the earth was a flat disc. Well over 2,000 years ago, the ancient Greek philosophers were able to put forward two good arguments proving that it was not. Direct observation Of heavenly bodies was the basis of both these arguments. First, the Greeks knew that during eclipses of the moon, the earth was between the sun and the moon, and they saw that during these eclipses, the earth’s shadow on the moon was always round, they realized that this could be true only if the earth was spherical. If the earth were a flat disc, then its shadow during eclipses would not be a perfect circle, it would be stretched out into a long ellipse. The second argument was based on what the Greeks saw during their travels. They noticed that the North Star, or Polaris, appeared lower in the sky when they traveled south, in more northerly regions, the North Star appeared to them to be much higher in the sky. By the way, it was also from this difference in the apparent position of the North Star that the Greeks first calculated the approximate distance around the circumference of the earth, a figure recorded in ancient documents says 400,000 stadia, that’s the plural of the word stadium. Today, it’s not known exactly what length one stadium represents, but let’s say it was about 200 meters, the length of many athletic stadiums. This would make the Greek’s estimate about twice the figure accepted today, a very good estimate for those writing so long before even the fast telescope was invented.
选项
A、They noticed an apparent change in the position of the North Star.
B、They observed eclipses at different times of the year.
C、They were the first to estimate the distance between heavenly bodies.
D、They wanted to prove that the Earth was flat.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3817792.html
相关试题推荐
Asoneoftheyoungestprofessorsintheuniversity,Longfellowiscertainlyon
Accordingtotheprofessor,whatwere,thebeliefsoftheGreekphilosophersbas
Accordingtotheprofessor,whatwere,thebeliefsoftheGreekphilosophersbas
Accordingtothestudy,howmanypeoplereallyintendtoloseweight?[originalt
Theprofessorpersistedinattendingtheconference______hisillnessandtheh
Accordingtothenews,thetwoLibyansare_______.[br][originaltext]TwoLi
Accordingtothenews,thetwoLibyansare_______.[originaltext]TwoLibyans
Accordingtothenews,whetherthebirdfluwillcauseagreatcasualtydepends
Accordingtothenews,whetherthebirdfluwillcauseagreatcasualtydepends
WhichoneofthefollowingisNOTtrueaccordingtotheaccident?[originaltext]
随机试题
Wheredoesthisconversationtakeplace?[br][originaltext]W1:Goodafternoon
[originaltext](16)Thereisprobablynoareaofhumanactivityinwhichour
Weenjoyfinefoodfromthefirsttastetothelast.Similarly,goodwriting
不可忘记用爱心接待陌生人,因为曾有接待陌生人的,不知不觉就接待了天使。(《圣经·希伯来书》)(entertain)Donotneglecttosho
计算实际正文用纸总令数时,下列步骤中错误的有( )。A.统计单册书刊用同一种纸
某一MIS系统项目的实施过程如下:需求分析、概要设计、详细设计、编码、单元测试、
财务公司应培育良好的风险文化,实施合理的风险管理政策,设计完善的风险管理架构,建
患儿,女,3岁,因发热3天,咳嗽2日伴腹痛而来诊。查体:T40℃,神志清,扁桃体
(2018年真题)平阳公司是国内一家中型煤炭企业,近年来在政府出台压缩过剩产能政
城镇道路横断面常采用三、四幅路形式的是( )。A.快速路 B.主干路 C.
最新回复
(
0
)