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Americaninventor,ThomasEdison,myfavouritescientist.Imaginethis:whenyouloseyourjobandhavelittlemoney,youcan’tbuyenoughfoodtoeatandhavenoplacetosleep.Whatwillyoudo?Willyougiveuporcontinuetofindjobstomakemoney？Ithinkyoumayfelldown,evengiveup.ButEdisondidanythinglikethat.Whenhelosthisfirstjob.Hewentroundthecountryfromjobtojob.Atlasthefoundajob,fixingmachines.Hecouldnotonlyfixtheoldmachinesbutalsomakenewones.Thebosswasveryappreciatehim.SohegaveEdison40,000dollars.ThomasEdisonwas23,heusedthemoneytobuildafactory.Hehadmanyworkers,butheworkedharderthantheothers.Herarelyhadarest.Soonhemademorethan40newthings.ThomasEdisonisfamousfortheelectricity.Heinventedmanyusefulthingswestillusenowadays.Forexample:in1876,somebodymadeatelephone,butitcouldcarryvoicesonlyalittleway.Edisonwantedtomakeabettertelephonethatcouldcarryvoicesfurther.Hesooninventedone.Itcouldcarryvoicesalongway.Hesaid:Iwanttobringoutthesecretsofnatureandapplythemforthehappinessofhuman.Idon'tknowanybetterservicetoofferfortheshorttimeweareintheworld.Ibelieve,Thomasisoneofthegreatestscientistsofalltime.