LeonardodaVinci制作人：12屆生化系高分子一班第一小組AchievementArtPhysicsEngineeringandinventionsScientificstudiesJournalsandnotesThesestudieswererecordedin13,000pagesofnotesanddrawings.Therearecompositionsforpaintings,studiesofdetailsanddrapery,studiesoffacesandemotions,ofanimals,babies,dissections（解剖）,plantstudies,rockformations（巖石形成）,whirlpools（浴缸）,warmachines,helicoptersandarchitecture.Leonardo‘swritingsaremostlyinmirror-imagecursive（草稿）.Thereasonmayhavebeenmoreapracticalexpediencythanforreasonsofsecrecyasisoftensuggested.SinceLeonardowrotewithhislefthand,itisprobablethatitwaseasierforhimtowritefromrighttoleft.Hefoundoutliquidpressure,andproposeprincipleofConnectedDevice(連通器).InoneConnectedDevice，thesameliquidhavethesameliquidlevel,differentliquidhavedifferentliquidlevel,theliquidheightanddensityisinverselyproportional（成反比）.PhysicsFormuchofhislife,Leonardowasfascinatedbythephenomenonof

flight,producingmanystudiesoftheflightofbirds,includingplansforseveralflyingmachines,includingalight

hangglider

andamachineresemblinga

helicopter.

EngineeringCivilEngineeringToopenthepasswordbarrel,mustsolvefivedigits.Passwordbarrelhasfiverotary（旋轉(zhuǎn)的）wheel,eachwheelonthe26letters,mayactasapasswordpermutationandcombination（排列組合）asmuchas11881376species.Passwordbarrelsareusuallyputavitreous（玻璃的）bottlewhichfullofacetum(醋溶液).Ifyouforceitopen,thebottlewill