papermaking造纸术PPT课件

.,1,TheFourGreatInventionsofAncientChina,.,2,Chineseancientachievementsinscienceandtechnology,.,3,1.,Scienceandtechnology,Chineseancientastronomycalendar,.,4,1.,Scienceandtechnology,AncientChinesemathematicsachievement:,1.Ninechaptersofarithmetic九章算术2.周髀算经,.,5,1.,Scienceandtechnology,TheancientChineseachievementsinphysicsmedicinegeographyarchitectureandsoon.,ThefourgreatinventionswereimportantsymbolsofChinasroleasagreatworldcivilization.,.,6,2.,Influencetotheworld,Marxpointedout:Gunpowderblewuptheknight(骑士)classCompass（罗盘）openedtheworldmarketandsetupcolonies（殖民地）Printingisbecomingprotestanttools,.,7,2.,Influencetotheworld,ThefourgreatinventionsintheEuropeancivilizationgraduallyspreadtothewestbefore,becomethenecessarypremiseof“Bourgeois(资产阶级)development,.,8,Papermakingtechnology,.,9,4.,Development,Invented,2century,105,Popularize,3to4century,Onlywritingmaterial,.,10,Maininventor：,2.,CaiLun,?121,Official,Killedbyhimself,Thegodofpaper,.,11,Whatdoesitmakeof?,1.,Ancientrawmaterial,Bark(树皮)Fishingnetclothhempheads(麻头),.,12,3.,produce,TherearefourmainstepsIwillintroducetoyou,.,13,3.,produce,First,SeparationofrawmaterialTousetherettingleaching（沤浸）orcookingmethodsforrawmaterialsinalkali（碱）degumming（脱胶）,andscatteredintofibrous（纤维状）;,.,14,3.,produce,Second,Beating（打浆）Usethemethodofcuttingandstruck（捶捣）staplefiber,andmakethefiberbroom(帚化),andbecomethepulp(纸浆);,.,15,3.,produce,Third,Manufacturepaperwithpulp（抄造）Namelymakepulpwaterpenetrationintoslurry,thenusedforpaperpulp(wovenbamboomat)andgetthepulpinpapertowoventhinsheetofwetpaper;,.,16,3.,produce,fourth,DryNamelythewetpapertodry,peelingthenbecameapaper.,.,17,4.,Spread,6thcentury:Korea7thcentury:Japan8thcentury:ArabStatesandIndia12thcentury:EuropeandAfrica16thcentury:Amrica19thcentury:Oceania,.,18,5.,Influence,Itisarevolutionofwritingmaterial.Anditiseasytocarry,therangeisnotconstrained(强迫),drivingtheChinese,Arab（阿拉伯人）,Europeanandtheworldsculturaldevelopment.,.,19,Paper-makingisoneofthefourgreatinventionsofChina,thepaperistheHanlongexperienceaccumu