The Isaac Newton School of Driving - Physics and Your Car

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1、TheIsaacNewtonSchoolofDrivingTHEISAACNEWTONSCHOOLOFDRIVINGPhysics&YourCarBarryParkerTheJohnsHopkinsUniversityPressBaltimore&London©2003TheJohnsHopkinsUniversityPressAllrightsreserved.Published2003PrintedintheUnitedStatesofAmericaonacid-freepaper987654321TheJohnsHopkinsUniversityPress2715NorthCha

2、rlesStreetBaltimore,Maryland21218-4363www.press.jhu.eduLibraryofCongressCataloging-in-PublicationDataParker,Barry,1935–TheIsaacNewtonschoolofdriving:physicsandyourcar/BarryParker.p.cm.Includesbibliographicalreferencesandindex.ISBN0-8018-7417-3(alk.paper)1.Mechanics.2.Elasticity.3.Motion.4.Thermo

3、dynamics.I.Title:Physicsandyourcar.II.Title.QC125.2.P372003531—dc212003047527AcatalogrecordforthisbookisavailablefromtheBritishLibrary.Figures5–89,96–101byLoriScoffield-BeerToCharlesandOliveVizerContentsAcknowledgmentsixCHAPTER1Introduction1CHAPTER2TheOpenRoad:BasicPhysicsofDriving12CHAPTER3AllRe

4、vvedUp:TheInternalCombustionEngine32CHAPTER4WhenSparksFly:TheElectricalSystem62CHAPTER5“Give‘emaBrake”:SlowingDown88CHAPTER6SpringsandGears:TheSuspensionSystemandtheTransmission111CHAPTER7WhataDrag:AerodynamicDesign137CHAPTER8ACrashCourse:ThePhysicsofCollisions159CHAPTER9CheckeredFlags:ThePhysic

5、sofAutoRacing179CHAPTER10RushHour:TrafficandChaos199CHAPTER11TheRoadAhead:CarsoftheFuture219CHAPTER12Epilogue:TheFinalFlag239Bibliography243Index245AcknowledgmentsIamgratefultoTrevorLipscombeforhismanysugges-tionsandhelpinpreparingthisvolume.Furthermore,IwouldliketothankPatNegyesiforhishelpinobta

6、in-ingphotographs.Andfinally,IthankAliceCalapriceforhercarefuleditingofthemanuscript,andthestaffoftheJohnsHopkinsUniversityPressfortheirassistanceinbringingthisprojecttocompletion.TheIsaacNewtonSchoolofDrivingCHAPTER1IntroductionNewcars,withtheirsleek,shiny,curvedlines,areobjectsofintrigue,elegan

7、ce,grace,andbeauty.Theyareexciting,andtheycanbealotoffun.Thethrillofthefirstdriveinyournewcarissomethingyouremem-berforalongtime.Thescienceofphysicsalsohasacertainbeautyandelegance.Withafewsimpleprinci-plesandtheenormouspower