宇宙的起源英语

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1、宇宙的起源英语◎悬赏分：30・解决时间：2009-3-2915:40需要做一个课件帮忙找一篇文章，关于宇宙的起源，“BigBang”theory以及地球早期的形成不用很长，大概600-1000词即可谢谢问题补充：感谢1L的朋友但是不用这么详细稍微范一点就好不用太多专业术语，扯点霍金之类的只是大致的介绍…最好能给儿个问题，就当给出的文章是英语阅读•.再出儿个问题（3・5个）谢谢提问者：wuzihao94-高级魔法师五级最佳答案TheBigBangisthecosmologicalmodeloftheinitialconditionsandsubsequentdev

2、elopmentoftheuniversesupportedbythemostcomprehensiveandaccurateexplanationsfromcurrentscientificevidenceandobservation.[1][2]Asusedbycosmologists,thetermBigBanggenerallyreferstotheideathattheuniversehasexpandedfromaprimordialhotanddenseinitialconditionatsomefinitetimeinthepast,andcon

3、tinuestoexpandtothisday.ThescientistandRomanCatholicpriestGeorgesLemaitreproposedwhatbecameknownastheBigBangtheoryoftheoriginoftheUniverse,althoughhecalledithis“hypothesisoftheprimevalatom11.TheframeworkforthemodelreliesonAlbertEinstein'sgeneralrelativityandonsimplifyingassumptions(s

4、uchashomogeneityandisotropyofspace).ThegoverningequationshadbeenformulatedbyAlexanderFriedmann.AfterEdwinHubblediscoveredin1929thatthedistancestofarawaygalaxiesweregenerallyproportionaltotheirredshifts,assuggestedbyLemaitrein1927,thisobservationwastakentoindicatethatallverydistantgal

5、axiesandclustershaveanapparentvelocitydirectlyawayfromourvantagepoint:thefartheraway,thehighertheapparentvelocity.[3]Ifthedistancebetweengalaxyclustersisincreasingtoday,everythingmusthavebeenclosertogetherinthepast.Thisideahasbeenconsideredindetailbackintimetoextremedensitiesandtempe

6、ratures,andlargeparticleacceleratorshavebeenbuilttoexperimentonandtestsuchconditions,resultinginsignificantconfirmationofthetheory,buttheseacceleratorshavelimitedcapabilitiestoprobeintosuchhighenergyregimes・Withoutanyevideneeassociatedwiththeearliestinstantoftheexpansion,theBigBangth

7、eorycannotanddoesnotprovideanyexplanationforsuchaninitialcondition;rather,itdescribesandexplainsthegeneralevolutionoftheuniversesincethatinstant.Theobservedabundancesofthelightelementsthroughoutthecosmoscloselymatchthecalculatedpredictionsfortheformationoftheseelementsfromnuclearproc

8、essesinthera