. Nova praxis construendi circinum proportionalem horographicum : eoque ritè confecto omnis generis horologia in planis regularibus et declinantibus expeditissimè et exactissimè delineandi, in proximi commodum typis proposita & figuris instructa . >ll . \ Fof- *> Aiquijioctialc m^cxius. frjXW A ^uijiociiciid i ni crius. II. PROBLEMA XV. PoUre Inferius conftruert*. POlafe lrtfef fus fiet, Ci ex polari Supefiore horae duae matutinae & a centro horologij, nimirum 7. & 8. matutina, 4. & f. portieri- odiana ad planuminferius elevationi Poli parallel


. Nova praxis construendi circinum proportionalem horographicum : eoque ritè confecto omnis generis horologia in planis regularibus et declinantibus expeditissimè et exactissimè delineandi, in proximi commodum typis proposita & figuris instructa . >ll . \ Fof- *> Aiquijioctialc m^cxius. frjXW A ^uijiociiciid i ni crius. II. PROBLEMA XV. PoUre Inferius conftruert*. POlafe lrtfef fus fiet, Ci ex polari Supefiore horae duae matutinae & a centro horologij, nimirum 7. & 8. matutina, 4. & f. portieri- odiana ad planuminferius elevationi Poli parallelum transferantur, fervata eadem ** I J«longitudine Styli, & centro horologij pr*cedentis* Horas has fupradiftas in=»figura 11. numeris latinis diftinximus , illifque adfcripfimus : PoUre inferius4 PROBLEMA XVL sEquinoftiale Superius conficete, iUique Signa-MZodiaci infcribere^t J^Qmtioftide horologium dicitUf quod plartO pafallelo ipfi lineae elevationisr*JjLj ^Equatofis infcribitur. Hoc, quodfuperius dicitur, fic conftruesr. Duclineam AB, parallelam horizonti, hanc divide bifariam in C, quoa^punctum, efi: centrum horologij, ex quo demitte perpendicularem G D, pro linearigUfaMeridiana, feu hora 11. Accipe deinde Circinurti propof tionalem, eumque ma-X , vel minus aperi, prout majus vel minus defideras h


Size: 2337px × 1069px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., booka, bookdecade1690, bookidnovapraxisconstr00sahe, bookyear1695