scomet,from613bctotheearly20thcentury,chinesecontainsatotalof31nationalrecords,thefirsttimein1057bc.theobservationofsunspots,thefirstinthe4thcenturybcaboutgander's"astrology."historyrecordsonsunspotsbeganinbcfor28years.to1638,inthehistoryofsunspotrecordsaboutmorethanwerefoundinotherchineserecordscontainingthemembershipmaybemore.thesevaluabledataarestillimportantscientificvalue. historyasaresultofaccumulatedextensiveknowledgeofastronomicalobservation,hanmadeclearstructureoftheuniverse,astronomerstheory"渾天said."qindeniedthe"蓋天said." inordertoaccuratelyobservingthelocationofobjectsandphenomena,thehandynasty耿壽昌astronomers,suchastheinventionof賈逵totheequatorialcoordinatesystemforastronomicalobservationinstruments,chinesereferredtoasthe"sphere"or"celestialglobe." astronomerzhanghengofthehandynastycreated"celestialglobe"(alsoknownas"celestialglobe"),isusedtoshowthephenomenaoftheapparatus,similartomodern-day"celestialglobe."ituseswater漏壺launchinggear,driveshaftrotatingaroundthecelestialglobe,celestialphenomenacanbeaccuratelydisplayed. theinventionofthemechanicalclock,showbeginsrotatingcelestialsphere(theearth'srotationandrevolution)ofastronomicalinstruments,forthefirstproductionofthehannationality.725ad,thetangdynastymonkandhisastronomer(zhangwas)andthebeam-chaninthe"sphere"and"celestialglobe"onthebasisofthemade"copper渾天miriam."thisisadevicewithatimeofastronomicalinstruments,irritableroundwithrunningwater,ontheonehandshowstheoperationofthesun,ontheotherhand,legislationonthehorizonontwowoodenmen,thenaturalbeatofeveryminute,everynaturalbell-chen.escapementwheelonitshydraulicdrive. 1092ad,songdynastyastronomersusongcreatedamoreadvanced"clocktower",thismeansinpracticeisalargeastronomicalclockunits,35.65-foothigh,21feetwide.taiwan'ssub-three,theupperisthearmillarysphere,usedforobservingthelocationofthesunandstars;themiddleisthecelestialglobe,rotateanddoindicatetheater;thelowercourtforwood,woodcourtwasdividedintofive,therearedoorsoneachfloor,eachtoacertainmoment,woodenmenoutthedoorintime.woodafter漏壺courtandmechanicalsystems,drivetheentireapparatus.zhongsusongofhumanexcellenceinthemiddleagesmostofthemachinerymanufacturers,theprincipleinthetwocenturiesaftertheintroductionofeurope,ledtothemechanicalclockofdevelopmentinthewest. inaddition,beforethespringandautumnaregenerallyusedtomeasurethelengthof日影"圭表"hanisagreatinventionofourancestors.tablepoleforthelegislation,forthebed-foot-kyu,日影measuringlength,setthedateofthewintersolsticeandsummersolstice,aswellasthelengthoftropicalyear.asearlyasthetangdynastyandhisparty,whomeasuredthelengthofthemeridian. hanancestorsfirstdiscoveredlodestoneandamagnetguide,andtheproductionofthe"ian"andthecompass. hanancestorsinventedthecalendarlongago.itissaidthatthereistheyellowemperorqinli,ruixucalendar,lunarcalendar,yinli,zhouli,luli.referredtoasthe"sixancientcalendar."lunarcalendar,alsoknownas"夏正"tothefirstmonthfor歲首.yinli,alsoknownas"yinis"headedindecember.zhouli,alsoknownas"y"tonovemberfor歲首.byruixuqincalendartooctoberfor歲首.han,therehavebeenthebeginningcalendar,thethreeeccalendar,calendarquarter,asqianli,tai-mingli,shu-yinli-yuan,tai-yanli,12gascalendar,ec-daycalendar,calendartime,whenthenoticecalendar,daycalendar,etc..thesecalendarsarecreatedinadditiontothenorthernsongshenkuo"12gascalendar"andtheenactmentofthetaipingheavenlykingdom"calendardays"isasolarcalendar,theotherisyinandyangcalendarcalendartogether.eventoday,chinesearestillaccustomedtousingthetraditionalcalendaroftheyinandyangtogether,whilemostcountriesintheworldusingacommoncalendar. fourgreatinventionsandtheircontribution【】 inchina'stechnologicalachievementsofancientgloryoftheworldhistoricalprocessoftechnologicaldevelopmentandtheimpactoftheabove-mentionedisthelargestofthefourgreatinventions. paper-makingoperation,accordingtoarchaeologicaldiscoveriesinchinaaroundthe1stcenturybc,hasbeenonpaper,butwhenthepaperisfloatedflocretflaxtextileindustryby-productoflowyield,poorquality,butalsocannotbeusedforwriting.totheeasternhandynasty,caiexperiencedinthepastbasedonpaper-makingoperationforaboldreformandinnovation.inadditiontohempasrawmaterial,butalsotheuseofbarkandotherthingswithfiber.andtheuseofcausticlimecookingprocesstechnology,therebygreatlyimprovingthequantityandqualityofpaper.inlieuofpaper竹帛sincethebeginning,inthewholecountry.afterthe6thcenturyad,china'spapermakingconstantrumors.korean,japanese,arab,europehaslearnedpapermaking.paperbecamethedisseminationofculture,animportanttoolfortheexchangeofideas. china'sinventionofprintingpaper,becausetheneedsofthepublicationofbooks,printingarises.ad6thcenturysuiandearlytang,theemergenceoftheearliestprintingoftheprinting.thiswoodtendstobeusedforprintingmaterials,firstcarvedinwoodontheanti-word,togivethewordpaintedmexicanplates,printedonpaper.workers上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] ... 下一页 >>
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