如提:Andwhentimeslikein1901whentheWrightBrothershadaverybadseason,andwerecomingbackfromKittyHawk,andWilbursaidhedidn'tthinkmanwouldeverfly.ButOrvillewasalwaysoptimisticandalwayswillingtotrysomethingnew.SoIthinktherewasamarveloussynergismbetweenthetwo.In1899,WilburandOrvillereadabookontheflightofbirds.Theybegantobelieveinthepossibilityofhumanflight.Wilburwrote”WeaccordinglydecidedtowritetotheSmithsonianInstitutionandinquireforthebestbooksrelatingtothesubject.”Wilburspentthreemonthssiftingthroughtheworkofdistinguishedscientistandaviationexperimenters.Heidentifiedthreekeyareas;Lift,powertogeneratethrustandcontrol.Lilienthalhadmadenotableprogressonthebasicsoflift.Langleyhadshownthatpowerplantandpropellercombinationswouldwork.Wilbursawhispathclearly.Hemustinvestigatecontrolfirst.Ihavethoughtalwaysthatoneoftheintellectualkeysforthemtosuccesswithflightcontrolwastheirexperiencewithbicycles.Youknowwhenwerideabike,wearedoingsomethingthatisfairlycomplex.Infact,whenyoustandbackfromit,andstopandthinkaboutwhatyouaredoingwhenyouareridingabikeyouknowitsprettyincredible.Youarerollingalongonthesetwothinlittlethings.Whenyouwanttoreturnacorner,itisn'tjustturningthehandlebars.Youhavetoleanout,turnintoit.Thereisafairlycomplexcontrolmotioninvolved.Andinfact,whenyouthinkaboutflightcontrolinaircraft,youcanseethesamelinkages.Ittakes,Ithink,someonewiththesortofmindstheyhadtomakethatkindofleap.Wilburbeganbyexploringamethodofbalancingthewings.Hebuiltafivefootspanbiplanekitebytwistingandwarpingthewingtipsinoppositedirections.Wilburfoundhecouldcontrolthecraftinroll.ThiswasthefirstofseveralkeybreakthroughsthatwouldeventuallyleadtotheWrightstosuccess....Showmore
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