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Show ":58 . Cap- 19De Greflu Bipedum - 10; AL. BORELLI DE MOTV ANIMALIVMQ 239 cx1endantur a aniplicnturque ) quae aé'tio diflicilis eii,' fun. vi grauitatis deorsiim rucret , 35 hoc nomine faquia vniuerfurq ponglus machinae humani corpoiis ciliimus efl'c vulgc‘) cenfetur dcfccnfus . At fi hoc ne- elcuari perpendxculantcr debet {uperando mechani. gocium accuratit‘ls perpendatur , patcbit, non pofl‘e.' cas diflicultates alibi expofitas . Itaque in vno quo- abfaue aliquo laboriofo conatu defcenfum pcragi ; quc gradu fcalarum fufpcndi 3 & _eIcuari debet 2‘1 vi main, vthomo difcedat ex fiatione in fuprcmo gradu mufculorum quarts. pars ponderxs humani corporis, {calarummporteta Vt pcs dextcrwerbi gratin , parum- bis , & {emel integrum pondus eiufdem hominis,& pér eieuctur, 8: promoueatur; at tunc,fi centrum com- 11°C 66 laboriofiiis , & molcfiihs fiet, quc‘) celcrihsgri- munis grauitatis anterifis quoque impellcretur , produs fcanduntur . culdubio moles rota dcorshm rueret , Vt grauis , 8c Et animaduerrendum efl: , quéd in inceiTu fuperei- pes promotus fupcr fubfequentem gradum illidcrctur, planatam fuperficiem horizontalcm nunquam fufpcn- non fine noxa, & dolorc . @od incommodum vitadi , 8c elcuari debeté vi mufculorum integra moles tur memo centro grauitatis in prifiino fitu, fcilicct corporis humani , chm femper fupcr columnamcre- rerenta linca propenfionis ereifta pcrpcndicuiaritcr fu. é'cam offeam vnius pedis innitatur 3 ant conuertatur. ' ., .iil'l‘nU/ l\1\‘.\'.\‘."‘.l\ U"! pcrplantam pedis innixi in fuprcmo gradu, & tunc At in afcenfu per gradus ponderis corporis eleuario flexis articulis ciufdem fupremi pcdis innixi, deprimifit ‘1 vi mufculorum , non £1 duritie columnarumoiica- tur fenfim tom moles corporis , 8: decurtatur longitutum; 8c hinc oritur moleflus labor, 8: laflitudo. do totius columnce pedis dextri , & interim clongato Afcenfus pofica per fuperficiem planam accliuenu reiiquo pede anterii‘is promoto, fit , vt tota machinad iaboriofus quoque efi ob eafdcm caufas , 86infuperi pe‘dibus inzequaliter longis, inniratur gradibus proxi- quia {010 infiflendo plantar pedum acutos anguios mlsifilpremo nempé , & fubfequcnti . Pofica perducum tibijs efl‘iciunt, in qua pofltione non naturalnng- Ciaiinea propcnfionis fuper plantam pedis infimimffi. {culi extenfores plhs iufto diflrahuntur, nec inmxw mum columns: exercentis,difccdit pes finifler 1‘1 fupre- m0 gradu , (36 transfertur dcorsfim eodem progreffil efi firma , 8c idcb labox'iofa , Sc molcfla efl. iuperiiis expofico . PROPOS. CLXI. (@a verb diéta depreflio centri grauitatis non fit lflPfib & iftu quodam , fed mufculis agenribus fufien- Defccnfus per decliuia paulc‘; laboriofior ei'ca (11mm undo ponderofam molem , camque fenfim deorshrru transferendo; hinc eff , quéd abfque laboriofo conninccflhs in plano horizontah . ru mufculorum extenforiorum , fenfim fc relaxando: In defcenfu , fiué per gradus , {iué per planumdcj dci'l‘Cfiio illa centri grauitaris ficri nonpstefi; Qui CllUC 9 ne(1‘13 crura 9 nec Vniucrfa machina humlfi} labor («3 euidentior efl, qua lentiori motu pergra- corporis furshm clcuari , 8: impelli debet : imb {510" dus defccndimus . Cumquc talis neceffims fubflentai A 111 ' Kk 2, tloms Ca p.19. De Greffu Bipcdum . |