小弟英文差~麻煩各位大大幫小弟翻譯一下 - 自行車
By Jacky
at 2008-10-08T00:00
at 2008-10-08T00:00
Table of Contents
The"mind'seye"ofwrightbrother*GeorgecayleyHeavierthan-airflyingmachine的三大要件:Lift,Propulsion,andcontrol.於1800年提出*TheengineeringapproachTheirengineeringinstinctsoperation.*Hardworkwouldbringresults.Fromboyhoodon,eachbrotherhadawaywithtoolsandaknackforresolvingproblems.*Orvillewasworeimpulvise,“bubblingovertheideas”,accordingtohisniece.Amongfamilyandfriends.Hehadareputationasateaseandapracticaljoker.Amongstrangers,however,heseemeduncomfortablyshy.Orville’sgreatestpleasurewastotakesomethingapart,seehowitworked,andputitbacktogether.Wilburwasmoreofavisionary,fascinatedbythebigpictureratherthanitsindividualparts.Hewastheonewhofirstdreamofbuildinganairplane,butitwasOrville’senthusiasmthatcarriedthecarriedthebrotheralong.*Thewrightsfirstconcentratedontheproblemofcontrol.“Whenthisonefeature(control)hasbeenworkedout,theageofflyingmachineswillhavearrived,forallotherdifficultiesareofminorimportance.”Asmodernaerodynamicshasconfirmed,successfulflightispossiblewitheitherastableoranunstableaircraft.Whatisimpossibleistoflyanairplanethathasnoadeqratemeanscontrol.TheWrightswerethefirsttoseethatcontrolwasnotmerelyanadjusttostability,buttheveryessenaofmaintainingequilibrium.Thebicycleiscompletelyunstable,jetitisentirelycontrollable.Theyrecognizedthatjustasacyclistmustmakeconstantcontrolmovementstostayontwowheels,theairplanepilotmustexercisesimilarauthorityoverhiscrafttostayintheair.Enqallyimportant,thebicycleshowthatcontrollinginstabilitywaspossiblewithoutsuperhumanreflexesorextraordinarymovement.Hereagaintheinfluenceofthebicycleisrevealed.Abicyclerequiresconstantandconsiderablepracticebeforeridingcanbemastered....Showmore
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自行車
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By Sarah
at 2008-10-10T19:21
at 2008-10-10T19:21
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