HOROLOGII PERPETVO MOBILIS 

 dh:scrip rio vna cvm modo constrvendi 



HOKOLOGIA PORTATILIA ET CYLINDRIGE- 



RA , VT SVB ELEVATIONE PONDPRIS VEL 



liNTENSIONE ELATERIS MOTVxM SVVM 



CONTINVENT : 



AVCTORE 



C. C. Krnt-zenflein 

 §. I. 



'^^' ^ IVT*^ ^^"'' ^^^ pcrpctui mobilis offcndatiir , in primo ft:i- 

 ±\ tini limiiie indicandiim cfTc iiidicaniiis , nollriimiis cflc 

 pcrpctiuim mobilc naturalc , dc cuius podilMlitatc non adeo 

 dubitant mathcmatici , (]uim dc pofiibilitatc pcrpctui mo- 

 bilis ex meciv.inicis lubfidiis conllrucndi. Intcriin , fi di- 

 ftindionem irtam intcr pcrpctuum mobilc natuialc ct ar- 

 tificiiilc vcl mcchanicum cxacflius confidcramus , nullum vn- 

 ()uam crit pofiibile , quod non fit naturalc ; omniuni cnim 

 ■vis motrix aiit in grauitatc corporum , aut in clallicitatc, 

 aerc , igne vel alia quadam vi naturali vt fundata fit ne- 

 ceflc cfl. Venm tamcn fi vtnuMjuc notio diflincla dc- 

 finicnda cflct , hanc in co poncndam cflc duccrcm , quod 

 in pcrpctuo mobili artificiali vtl mcchanico vis motrix ab- 

 folutc conrtans cflc dcbcat , qucmadmodum c. g. graiiitas 

 et claflicitas corponim \ in naturali vcro cadcm taiitum 

 pcr accidcns conflans fit , vt motus acris ct cnlori.n. Hifco 

 polkrioribus principiis innitiiiuiir pcrpctiim mobilc gticri- 

 ckiuium , quod ex pracgrandi ciiprco thcrniomctro drtbbc- 

 liaiio conllat, tt plunma aiia partim a Schotto iu magia 



liia 



