25a D E M T V 



Tab. X. ^7- His praemilTis , vt tandem quaeftlonls 



Fig. 7. prlncipalis §. ip. propofitae folutionem dctermina- 

 tum exhibeam , n6 vniuerfalitas calculum- impediat, 

 tubo primum fi^uram circularem tribuam euirque 

 in plaao verticali coaftitiitum cbnfiderabo ; tum ve- 

 ro etiam quo facilius calculi difficultates fuperem , 

 ampi:tudinem eius vbique eandem fiatuam, \t quail- 

 titas rr fit conriaus. Deinde du<fto d ametro iiori- 

 2ontali AB, in eius termino A calorem maximnrn 

 in B vero minimum effe affumam , vt aqnae den- 

 fitas in A fit minima in B "v ro maxima , in loco 

 flutem fummo C et imo D valoum quendam irc- 

 dium teneat. Parum autem referet , quomodo va'- 

 shtlo denfitatis conftituatur, igne autem ad A fufci- 

 tato quia calor in ratione duplicata diftantiarum 

 decrefccre aeilimator , pro quouis autem tubi pun- 

 ^o S diftantiae feu cordae AS quadratum finui 

 verfo A2 eil proportionale , pofito angulo AOSn^ 

 ftatuamus aquae in S denfitatem q— i—acoi.Of 

 vt denfitas minima iu A fit — i— « maxima in 

 B~i4-a, et media iu C vel D~i. Tum vero 

 pofito circuli radio OA~a, erit arcus ASi;Jz:fl0, 

 et punfti S altitiido sZ—Z — aiin.cp. 



28. Sit porro amplitudo tubi conftans rr-ff^ 

 et ehpfo tempore zit celeritas aquae in CvelDr/^, 

 vt fit 'X-ffu , celcritas vero in 'S>z^~. - ~^^ - m , 

 quam in plagam ACED dirigi alTi-iniQ. lam fin- 



guk 



