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1、Today.Let’sseesomethinghappened youmaythinkforgrantedinhistory.历史上的“想当然”Rumor：ItisColumbusfoundthattheearthisround。ThefirstThesphericityoftheearth（地圆说）Theancientmythisbelievedbymillionsofpeople.WearetoldthatColumbus‘scontemporariesbelievedthathisvoyagewasdoomedtofail
2、ure,becausetheybelievedhewouldfallfromtheedgeoftheearth.Infact，thoughitwasin1490s,manypeoplehavealreadyknowntheearthisround,andtwothousandyearsago,theGreekphilosopher,Pythagorasfirstproposedthistheory,whenSpaindidnotexist.What’smore,Columbusdidnotreachtheoriginal-env
3、isageddestination,buthetooktheopportunitytodiscovertheAmericas.It’snotabadresultforthefailurenavigation.Sphericityoftheearthhavebeenwidelyrecognizedatthattime,andallmethodsofthenavigationswerebasedonthefactthattheearthisround.这是个被千百万人深信的古老神话了。我们是这样被告诉的，哥伦布的同时代人都相信他的航
4、行注定失败，因为他们认定他会从地球的边缘掉下去。实际上——虽然那是在15世纪90年代，但人们已经知道地球是圆的了，自从2000年前希腊哲学家毕达哥拉斯第一次提出这个学说，那时候西班牙还不存在。哥伦布没有到达最初设想的目的地，但是他顺道发现了美洲。对一次失败的航行来说实在不算个坏结果。当时地圆说已经被广泛认可，所有的导航方法都是基于地球是圆的这个事实。传言：哥伦布发现地球是圆的。ThesecondNewton'sAppleRumor:Newtonwassittingundertheappletreewhentheapplehith
5、ishead,thenhecameupwiththelawofgravity.AgreatdiscoveryasrandomeventwasbornIntheblinkofeyes,Wewouldthinkifnotarightpersonintherighttimeandarightplace,hehaslostanimportantresearchresultsincredibly.Basedonthisidea,webelievethatanapplehitNewton’headsothathediscoveredthel
6、awofgravity.Butinfact,thefirsttimewiththerumorcameup,Newtonhadgone60years,"In1666,helefttheUniversityofCambridgeagainandreturnedtothemother’houselocatedinLincolnshire.Whenhewaswalkingwhilethinkingdeeplyingarden,hesuddenlythoughtofgravity(itsrolemakinganapplefromthetr
7、eefelltotheground)willnotbeconfinedtoalimiteddistancearoundtheEarth,butwillextendtothewiderthanusualplace."(John,Newton'sassistantwhenheworkedattheRoyalMintandhusbandofNewton'sniece,readinbiographyaboutthememoriesofNewton.)传言：牛顿坐在苹果树下时被掉下的苹果砸到了脑袋，于是想出了万有引力定律。在眨眼之间因为一
8、起偶然的事件诞生了一个伟大发现，这种事自然令人感慨万千。我们感慨，如果不是一个正确的人出现在一个正确的时间和一个正确的地点，人类将会丧失一项令人难以置信的具有重要意义的研究成果。基于这样的想法，大家深信因为一个苹果砸中了他的脑袋让牛顿发现了万有引力定律。但是事实
