内容简介
Thisbookrecountsthehistoryoftellingtimefromthedawnofcivilizationtothepresent.Morethanasimplechronology,itexploresthetechnicalresourcesusedtomeasuretime—whethersolar,hydraulic,mechanical,orelectrical—justasitexplainsthekeyfactorsbehindthemajorbreakthroughsinthescienceofhorology.Fromancientastronomicalobservatoriestoatomicclocks,instrumentsfortellingtimehavealwaysbeencloselylinkedtothecutting-edgesciencesoftheday,rangingfrommedicineandnavigationtoaeronautics.Inventionsintimekeepinghavebeencrucialtotheorganizationofhumansocietyandtoactivitiessuchasfarming,industry,andtrade.Eachnewdevelopmentwasbasedontheneedsandaccomplishmentsofitsdayyetspurredfurtherdiscoveries.Writingahistoryoftimemeansviewinghumangeniusthroughtheprismofthesteadymasteryofacrucialtechnology.Thepatient,long-termconquestofaccuracyhasbeentheresultofsuccessiveadvancesfromsundialtowristwatchuptotherecentexploitsoftheheirstothisage-oldquest,namelymasterhorologistsofthetwenty-firstcentury.