电话发明者贝尔英文介绍

AlexanderGrahamBellInventoroftheTelephoneByMaryLouiseShore2005*Born:March3,1847*Parents:AlexanderMelvilleBellandElisaGraceSymonds*Siblings:2brothers,MelvilleandEdwardAlexanderGrahamBellAlexanderGrahamBellgrewupinEdinburgh,Scotlandwithhisfamily.ChildhoodLearningFromtheFamilyAsachild,Bellinheritedamusicaltalentfromhismother,whowasamusicianandalsoaportraitpainter.Hewastaughtbyhisgrandfatherandfatheraboutpublicspeaking.HelloGrandpa!WhenBellwas13yearsold,hespentayearwithhisgrandfatherinLondon.ToGraham,thisyearwasthe“turningpointofhislife.”BellreadbooksinthelibraryaboutHermanvonHelmholtz,aGermanscientistwhoexperimentedwithelectricalvibrationstomakevowelsounds.HermanvonHelmholtzHeresearchedhisexperimentssothatsomedayhemightbeabletoreconstructtheminhisownhome.EarlyLifeAttheAgeof16,Grahambegantoteachmusicandspeechataboysschool.Yearslater,Bellstartedteachinghisfathersvisualspeechtodeafandhearingimpairedchildren.Bellatage29Tuberculosis-1870In1870,Bell’stwobrothersdiedoftuberculosis.SinceBellwasalsothreatenedhisfamilydecidedtomovetoahealthierenvironment,Canada.AfterGrahamwassafefromcatchingthedisease,hisjobledhimtobeaphysiologyprofessoratBostonUniversityintheUnitedStates.HelloBoston!Good-byeCanada!WhileBellwasinMassachusetts,heinventedtheharmonictelegraph,aninstrumentthatmakesitpossibletosendmultipletelegraphsononeline.BostonUniversityOnMarch7,1876,Bellrecievedhispatentforthetelephone.TheTelephoneisPatented“Mr.Watson,comehere,Iwantyou.”OnMarch10,1876,AlexanderGrahamBellwasinhistestingroomwithhispartner,Watson.Theexperimenttheywereworkingwithhadreedsthatwerethinandsteel.OneofthereedswasstucksoWatsonpluckedittotrytofixit.ReedsWhenhedid,Grahamheardthevibrationclearlythroughthenewlyinvented‘telephone’.Successful!TheSimpleTelephoneTherearethreepartstothesimpletelephone.TheSpeaker,theMicrophoneandtheSwitch,alsoknownastheHookSwitch.TheHookSwitchTheHookSwitchconnectsanddisconnectsthephonefromthetelephonenetwork.Thenetworkisconnectedwhenyoupickupthephone.Thespeakerpicksupthesoundswavesfromtheotherline,andsendsthemthroughthenetworktoyoureardrums.Thesoundsvibrateinyourear,andyouthenhavesound.TheSpeakerTheMicrophoneThemicrophonehasadiaphragmwherethesoundswavesvibratethearea.Theamplifier,asmallpartofthetelephonethensendsitthroughtotheotherline’sspeaker,reinterpretingthesoundsintophysicalvibrations.AMoreModernizedTelephoneTomakeuptherealtelephonetherearethe3majorparts,likethesimplephone,and3morenewparts,theseincludetheDuplexcoil,thekeypadandtheringer.TheDuplexCoilInthesimplephone,youcanhearyourselfthroughthespeakerwhenyoutalk.TheDuplexcoilisadevicethatenablesyoutospeakintothemicrophonewithouthearingyourvoice.TheRingerTheRingerwasalsoanimprovementmadefromthesimpletelephone.Theringerismadeupofabellsothatyouareawarewhenanotherlineiscallingyou.KeypadThetouchtonekeypadconsistsoftwelvebuttons.Ithasthedigits1-9,andzero.Totheleftofthezeroisthestarkey.Locatedonit’srightisthepoundkey.TheTelephoneThetelephonemayseemlikeacomplicatedmachine,butitreallyisoneofthesimplestdevicesthatyoumayfindinyourhome,oranywhereelseyoucanimagine.TheTelephoneTodayToday,phoneshavebeenabletogetevensmallerandevenhavenocords.Inthebottomleft,thereisapalmpilotthatcanalsobeusedataphone.Thetelephoneisauniquepieceofequipment.Noonecanimagineourworldwithoutit.ASaddayinHistoryOnAugust2,1922,AlexanderGrahamBelldiedathishomeinBaddekNovaScotia.Bibliography---.“AlexanderGrahamBell.”LucidCafé.---.---.April27,2005“Bell,AlexanderGraham.”TheNewBookofKnowledge.B,2000edition“Bell,AlexanderGraham.”AcademicAmericanEncycopedia.B1991---.“Telephone.”HowStuffWorks.---.---.April30,2005!MynameisMaryLouiseShoreandIlovetotravel,playvolleyball,watchNcstatebasketballandsmile!Iloveskittlesandoreos.