(264025),,,,,,,1607,:,,,,,,1.1676O.RÊmer12,O.RÊmer214000km/s,O.RÊmer,2.1728James.Bradley,,,40.9,303000km/s,1.1849H.L.Fizeau,,118471902,2.99108m/s3.15108m/s2.1862L.Foucault,,,,,,,,,,2K,,AB,,,,21,,,,,841,2L.Foucault2,2.98108m/s3.1962MichelsonL.Foucault,,L.Foucault,,32997964km/sMichelson,,,PearsonPease,2997742km/s4.KorolusMittelstaedt43,AndersonHiittel,2997766km/s,1951Bergstrand,299793.10.3km/s5.,,,5,,,,:fLm=f0+(L+2m)F(f0,Lm,F),,,,2,,4(44)94161(91)(264000),,,,,,,:1PQ(PQ,),PQRSTU,PQOVW,PVOOWQ1PVOWQPQ,4;OA,X,X,(),()X,X,X,2,4,,(),X,,X,X;,X,,X,XX,X(),()X,(49)(5M2),,,,,5He2Ne,v=2F(F,)He2Ne632.8nm,44