414. D E M O T V 



comparaMm vt fit t m — T M. et t n — — T N. 

 QiKimabrem in noftra figura fcalam A M D finc 

 \lla variatione fuper axe A d deCcribi conucnit vt 

 fit ea Amt/ altera vero fcala A N FG ;bi ad con- 

 trariam axis partem defcribi debct vt fit A nfg. 

 His iam ambabus fcalis vltra A contiiiuatis confide- 

 remus in tubo locum quemcunque S , liatuendo nunc 

 diftantiam a vertice ASzzS, vbi cum acr initio 

 fuerit in acquilibrio , idcoquc T rr o et Q zr B 

 hincque SQ— o, elapfo tempore zz t , cnpiamus 

 vtrinque ab S interunlla S T^' zziS t^ ~ c t , fintque 

 iti pundis T-' et /^ applicatae ambiirum fcalarum 

 T^ M^, T^ N' et /'' ff/ t^ f/; ntciue ex his ftatus a«- 

 riS in S ita definictur vt fit ibi 

 dcnfitas qzizl^li -{- ^^(T'M' + 1' ?fi')- i^(T'^'-t'!/)) et 

 celeritas y = ,i^(/'';//-T^M^)4--^-s(T^N^+^'';/} 



-^-^^(A/'/;;'-AT'MO-,-Vs(AT'N' + A/';i') 



vndc primo patet , quamdiu tempus ab initio ela- 

 pfum t minus fuerit quam ^^^, tum ob 



T^M''^^, /';;/- o, et T^N"— r';/ = DF 

 fore ^ =:: B et ob 



At^m^ — AT^m' et AT^N^rr AT^. DF 

 atque A/^;/=Ar''. DF prodire 

 • -£-.DF-J:^(AT'+A/')=o ob AT'+Ai'z:2ASz2S, 



tamdiu crgo aer ibi in aequilibrio mancbit. Statim 

 autcm ac tempus clapfum t maius fit quam ^ , 



aer 



