四大发明英文版

ChinaAncientFourInventions中国四大发明CompassMagneticIt's.....Throughtheages,Chinaisconsideredtobethefirstcountrythatinventedandusedmagneticcompass.Nearlytwothousandyearshavepassedsinceourancestorsinventedcompass.It's.....Magneticcompassisadeviceusedtodeterminegeographicdirection,usuallyconsistingofamagneticneedleorneedleshorizontallymountedandfreetopivotuntilalignedwiththemagneticfieldofEarth.ImportanceFromsimplyusingittofinddirectionandjudgefengshuitomagneticcompassbeingusedinworldnavigation,tilltoday,variousnewly-inventedmagneticcompassesareappliedbroadly.Youcansaythat,thereasonwhyseafaringcandeveloprapidlyinmoderntimesisbecauseitbenefitsfromtheinventionandapplicationofmagneticcompass.ConsequencesEspeciallyduringtheMingDynasty,ZhengHemadeexpeditionstoSouth-eastAsiaforseventimeswithmorethan27000peopleanddozensofbigshipseachtime,whichcontributestotheextensionanddevelopmentofseafaringandforeigntradeintheworldConsequencesGoodscienceIthasabiginfluenceonmilitary,economy,seafaring;itpushesforwardthegreatdiscoveriesofgeography.Withoutmagneticcompass,Columbuscouldn'tarrivednewcontinent;Chinaisstilladoptingapolicyofseclusionandcomestoastandstill.GoodscienceChina'sancientscienceandtechnologywasoncebrilliant,whichbringusgreathonor.Thespreadandapplicationofmagneticcompassinwesterncountriesurgeustohavefurtherunderstandingofthesignificanceandinfluenceofmagneticcompassintheworld.PAPERMAKINGTheoldestpaperFangmatanPaperHistoryPaper-makingisoneofthefourgreatinventionsofChina,thepaperisthehanlongexperienceaccumulationandthecrystallizationofthewisdomofworkingpeople,humanabrilliantinventioninthehistoryofcivilization.Chinaistheworld'searliestsericulturesilkintheworld.HanChineseworkingpeopleabovecocoonsilksilk,suchastheremainingevilcocoon,cocoondiseasesuchasflocculantwithlegalsystemtakesilkfloss.Afterfloatingflocculant,wovenbamboomatlegacywillbesomeresidualeffect.Whenthenumberoffloatingflocculant,wovenbamboomatontheresidualflocculantproductintoalayeroffibersheet,afterdrystrippingdown,canbeusedforwriting.Thisflocculantfloatingtherearen'tmanyby-products,andcallitHeTiorFangXuonancientbook.ByCAIlunineasternhandynasty(105)ofthefirstyearofyuanxingpapermaking,improvedbyCAIluninthebark,hempheadsandourrawmaterialssuchascloth,fishingnets,afterfalling,dao,copypaper,dryingtechnology,manufacturing,istheoriginofmodernpaper.Thispaper,therawmaterialiseasytofindandverycheap,qualityisalsoimproved,graduallywidelyused.Inhonourofthefeat,CAIlunlatergenerationscalledthispaperCaiHoupaperCailunThedesignofthepapermakingprocessUntiltheeasternhandynastyandemperorperiod,throughimprovedbyCAIlun,formedasetofrelativelyfinalizethedesignofthepapermakingprocess,theprocesscanberoughlydividedintofoursteps:Thefirstistheseparationofrawmaterial,istousetherettingleachingorcookingmethodsforrawmaterialsinalkalidegumming,andscatteredintofibrous;Secondisbeating,istousethemethodofcuttingandstruckstaplefiber,andmakethefiberbroom,andbecomethepulp;Thethirdisthemanufacturepaperwithpulp,namelymakepulpwaterpenetrationintoslurry,thenusedforpaperpulp(wovenbamboomat)andgetthepulpinpapertowoventhinsheetofwetpaper;Thefourthisdry,namelythewetpapertodryordry,peelingthebecameapaper.ThedesignofthepapermakingprocessThespreadofpapermakingResearchshowsthatthistechnologyspreadtomanycountrieseventheworld.FirstofallincomingandpapermakinginChinaandVietnam,followedbyadjacentspreadtoKorea,Japan,isalongtheTangDynasty-Arab-thespreadofthislineinEurope.Moreoverinmanycountriespaperisusedformoneysothistechnologyhelpstheireconomicthusitledanumberofeconomicdevelopment.EffectInthewordpaperisthecrystallizationoflaborandknowledge,ithelpspeoplestudy,rememberinformationanddosomecleaningandsoon.Paperisabridgetoheritageculturalofmankind.Itisawitnessofthegreatcivilizationandthefamousthought.Itisthedirectteacherofhumandeveloped.Itisanessentialassistanttohumanlife.Printing,knownas“motherofcivilization”,wasanothergreatinventionoftheChinesepeople.Ithasalonghistoryandincludesblockprinting(雕版印刷)andmovabletypeprinting(活字印刷).Blockprinting(雕版印刷)BlockPrintingwasprobablyinventedbetweentheSuiandTangdynasties.Theprocessofblockprintingstartedwiththecuttingofwoodintoblocks,andthencharacterswereengravedinreliefontheblocks.Inkwasbrushedontheengravedblockandawhitesheetofpaperwasspreadacrossitandthenbrushedwithacleanbrushonitsbackleavinganimagewhenthepaperwasremoved.Theworld’soldestsurvivingbookprintedonpaperisDiamondSutra(《金刚经》).Itistheearliestwoodcutillustrationinaprintedbook.ItwasprintedinTangDynasty.Movabletypeprinting(活字印刷)InSongDynasty,wordworkerBiSheng,Usetheclaywithviscidity,makeintotherectanglecube,carvethesingleChinesecharactersonit,burnitwiththefire,formthefont.Theprintingskillisnamedthetypography.毕昇writeburncarveprinttypesetting书写雕刻烧制排版印制Advantages：Itcanbeusedrepeatedlyandsavematerials.Itiseasytobemodified.Improvetheefficiency.Disadvantages:It’shardtotypesetting.Theworkersarerequiredtoread.pritingjavascript:void(0);0);Bytheyear1000,pagedbooksinthemodernstylehadreplacedscrolls.Twocolorprinting(blackandred)wasseenase