首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Why stars move so quickly. B、Why few stars have planets. C、Why stars aren’t moving toward one another. D、Why stars haven’t mov
A、Why stars move so quickly. B、Why few stars have planets. C、Why stars aren’t moving toward one another. D、Why stars haven’t mov
admin
2004-12-28
99
问题
Today most astronomers accept the notion that groups of stars that make up the universe are all moving farther and farther away from each other. but until very recently this idea of an expanding universe was not a theory most European scholars believed in since ancient times and up to about the17th century most of these scholars thought the size of the universe have remained unchanged since the moment of its creation or perhaps forever, with all the stars remaining more or less in place in relation to each other. but that was challenged in the late 17th century by Izic Newton’s idea of gravity as a force of attraction, which contradicted the idea of a university that is static, unchanging. If gravity causes all the stars out there in space to attract each other as Newton said, then they could remain motionless. Sooner or later all the stars will fall in absorb each other. well, scientists then propose a new model, taking Newton’s theory into account, they didn’t want to abandon the idea of motionless stars, but for this model to work, so the stars won’t fall in each other, they had to modify Newton’s law of gravity, so they theorize that for distance as large as those between stars, the gravitation force repels rather attracts. As you might guess, this other contradictions. But this is prettily resolved in the past centuries by currently accepted theory, which says the universe is continuously expanding. You’ll be reading all about that as your homework tonight.
选项
A、Why stars move so quickly.
B、Why few stars have planets.
C、Why stars aren’t moving toward one another.
D、Why stars haven’t moved farther apart.
答案
C
解析
Q:?what?did?some?scientists?try?to?explain?by?suggesting?that?stars?repel?each?other??
转载请注明原文地址:https://kaotiyun.com/show/Sp8O777K
0
托福(TOEFL)
相关试题推荐
DothefollowingstatementsagreewiththeviewsofthewriterinReadingPassage3?Inboxes36-40onyouranswersheetwriteY
Youshouldspendabout20minutesonQuestions28-40whicharebasedonReadingPassage3onthefollowingpages.Questions28-3
Lookatthefollowingstatements(Questions5-9)andthelistofpeopleintheboxbelow.Matcheachstatementwiththecorrectpe
Youshouldspendabout20minutesonQuestions27-40whicharebasedonReadingPassage3below.TravelBooksTherearemanyrea
HistoryofRefrigerationRefrigerationisaprocessofremovingheat,whichmeanscoolinganareaorasubstancebelowthee
Whichmemberormembersofthespeaker’sfamilyhavehealthproblems?Beforeleaving,thespeakerandhisfamilygotinformatio
Whichtwothingsareuncommoninruralareas?Wheredomanyvolunteersandtravellersrelatetheirexperiences?
A、She’sunabletoattendthestudysession.B、Shehasseenadoctorrecently.C、She’sconcernedaboutmedicalcare.D、Shementio
(Born)inNewYorkCityin1891,PrestonDickinsonwas(one)ofthe(pioneers)ofmodem(artistic)intheUnitedStates.
IsEarthGettingWarmer?TheNationalAcademyofSciencesclaimedrecentlythatpeopleshouldcautionratherthanpanicabou
随机试题
较低层管理人员的日常管理中,主要从事的控制工作是()
在表格中的单元格出现一连串的“#####”符号,则表示()
安全生产标准的安全生产范围包括()个体防护、粉尘防爆和涂装作业等。
下列关于电磁流量计的说法正确的是()。
为了防止钢筋笼上升,当导管底口低于钢筋笼底部3m至高于钢筋笼底lm之间,且混凝土表面在钢筋笼底部上下lm之间时,应()。
矿井开拓方式的确定需要遵循一定的原则,主要包括()。
下列各项表述中属于报关单位共有特征的有()。
根据红皮书的计算机安全系统评价准则,下面属于C2级安全准则的操作系统是(24)。Ⅰ.DOS Ⅱ.WINDOWS95 Ⅲ.WINDOWS 98Ⅳ.Unix Ⅴ.Windows NT Ⅵ.Nove11 3.x或更高版本
BreastfeedingCanCutCardiovascular(心血管的)RiskBreastfeedingcanreducetheriskofaheartattackorstrokelaterinlife
Canyouprovideanyevidencethathewas______ofthecrime?
最新回复
(
0
)