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Longitude determination, 1913
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Creative#:
TOP19844339
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
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N/A
Property Release:
N/A
Right to Privacy:
No
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ASTRONOMICALASTROPHYSICALHISTORICALPEOPLEPERSONTWOPEOPLEG.A.HILLUNITEDSTATESAMERICANUSNORTHAMERICANRESEARCHCOMMUNICATIONTELECOMMUNICATIONTECHNOLOGICAL1900STIMESERVICELONGITUDEDETERMINATIONTIMESIGNALSSTANDARDINTERNATIONALSTANDARDSTRANSATLANTICFRANCEFRENCHEIFFELTOWERPARISARLINGTONTOWERRADIORECEIVERTRANSMITTEREQUIPMENTDEVICEINSTRUMENTMACHINEUSNAVALOBSERVATORYWASHINGTONDCUSANORTHAMERICAMEASURINGTIMINGCALCULATINGTRANSMITTINGRECEIVINGASTRONOMYASTROPHYSICSHISTORYTECHNOLOGYCOMMUNICATIONSTELECOMMUNICATIONSASTRONOMERSCIENTISTRESEARCHERASTROPHYSICISTADULTMANMALECAUCASIANMONOCHROMEBLACK-AND-WHITE20THCENTURY19131910S
1900S1910S191320THA.ADULTMANAMERICAAMERICANAMERICANARLINGTONASTRONOMERASTRONOMICALASTROPHYSICALASTROPHYSICISTASTROPHYSICSBLACK-AND-WHITECALCULATINGCAUCASIANCENTURYCOMMUNICATIONCOMMUNICATIONSDCDETERMINATIONDEVICEEIFFELEQUIPMENTFRANCEFRENCHG.HILLHISTORICALHISTORYINSTRUMENTINTERNATIONALLONGITUDEMACHINEUSMALEMEASURINGMONOCHROMENAVALNORTHNORTHOBSERVATORYPARISPEOPLEPEOPLEPERSONRADIORECEIVERRECEIVINGASTRONOMYRESEARCHRESEARCHERSCIENTISTSERVICESIGNALSSTANDARDSTANDARDSSTATESTECHNOLOGICALTECHNOLOGYTELECOMMUNICATIONTELECOMMUNICATIONSTIMETIMETIMINGTOWERTOWERTRANSATLANTICTRANSMITTERTRANSMITTINGTWOUNITEDUSUSAWASHINGTON