CEKTRIFVGA CORP. SPHAERICt S-c. 147 



mcntorum , aiit rotatfoncm ipfiiis fpliacric hic ni- 

 hil dici. Sit igitur fii; i. O cciurum vorticis-, 

 GLPC^MH Scdio rplucric mnximn-, diftantia cen- 

 troruin Torticis et ("pluerae, hoc e(l OT— r. OL— w. 

 LT— TAl— r. LX=.r. X.i~r/.v. xo—j. Sf—dy. 

 MV— v. V-y"f/c'. VK.— c. Kr—dz. Ratio radii ad 

 pcripheriam circuli m-.Cp. Dcnfitas rpiiacrac flui- 

 do homogeneac — <?. Stgmciui cxterioris HMQpr 

 A-\-f. Segmcnti intcnoris zijz— ;g:. ]3ico, 



Qiioniam \ires centrifiig.ie gcncraliter funt in 

 rationc compoHta ex dire<fta mafTarum fimplici, et 

 duplicata celcritatum, itcmque inuerl-i di(lantiaium: 

 Hoc c(l, po(ita V/— V , MalTa iz:M, ccleritatc zz:C, 



et Diftantia rrD , quoniam gcneraliter V— ^l^. 



Erit in noflro caCu, proptcr CzrD"; V— M^D-"^* 

 Vndc (cqucns oritur computus. 



« 



I. Dc fcgmcntls Bafi plana 

 terminatis. 



Cafus primus. 



§. 5. Pro vi fcgmcnti GLP inuenicndi. Ro- pig. r. 

 tctur A-Sj'circa ccntrum X, vt clcmcntum SJ defcri- 

 bar zonulam ciicularem —pydy, Quoniam denfitas 

 illius eft :=ui—s^, crit MaflTa huius zonulac zr (u-^) 

 p\{iY. Et propter dilUnciam cius x ccntro Vorticis 



— ; 2 I 

 OizOS2-(OX -f-/ )^ crit Vii ccntrifuga zonulie 



T e = 



