Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657

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1
apparet in numeris lateri ſiniſtro AB eiuſdem
figuræ appoſitis.
Lege Torricellum lib. 2. de
motu projectorum.
62[Figure 62]
Eadem ratione reperies, quot partes, aut
menſuræ certæ, ſeu pondera aquæ effluant ex va­
ſe in ſingulis horis.
Item qua velocitate effluat
atque deſcendatin ijsdem, ſingulis horis.
Annotatio I.
NVmeri dextri lateris CD indicant etiam partes
ſeu ſpatiola vaſis, quæ percurrit aqua ſingulis horis
ſuo motu deſcensûs; ſimiliter & partes aquæ, quæ ſingu­
lis horis effluunt, & velocitatem, quâ effluunt.
Nam
in prima hora percurrit ſpatia 23, in ſecunda 21, in
tertia 19, in quarta, 17, &c.
Numeri ſiniſtri lateris AB ſunt duodecim qua­
drata temporis in duodecim horas diviſi.
Nam 1 eſt
quadratum horæ primæ, incipiendo ab ultima; 4 eſt
quadratum horæ ſecundæ, 9 eſt quadratum horæ ter­
tiæ &c. vt patet, ſi ſinguli numerimedio figuræ inſeri­
pti multiplicentur per ſeipſos.
Et hoc eſt, quod dixi­
mus ſuprà Propoſit. IX. in motu gravium naturaliter
deſcendentium ſpatia æqualibus temporibus transmiſ­
ſa eſſe inter ſe, ut quadrata temporum.
Annotatio II.
SI vas aliquod dividere velles in partes 24, multi­
plica 24 per 24, producentur 576. Divide ergo
altitudinem vaſis in 576 partes æquales, & procede
ut dictum in Corollario, juxta ſeriem numerorum im­
parium.
Eadem ratione quotlibet vas in quotlibet
partes partieris.
Annotatio III.
QVoniam quando in vaſe exigua eſt aqua, ut vix
fundum operiat, fluxus ipſius guttatim & non

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