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# Title: [Philosophiae Naturalis Principia Mathematica] Philosophiæ Naturalis Principia Mathematica (shelfmark Leibn. Marg. 166)
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DRINCIPTA MATFTEMATICA.
modo diametros recte dimensus sum. Parabam utique laINaM L IVEN
Planam perrenuem in medio pertoratam, existente circularis FOrZ- SECURVOS.
minis diamerro parcium quinque octararum digiei. FF ne rena
aquae exilientis cadendo acceleraretur ex acceleratione redderetur
ansuctior, hanc laminam non Fundo sed lateri rasis affixi sic, UE
vena illa egrederetur secundum lineam horizonei parallelam. Dein
ubi vas aquae plenum cAeE, aperui FOTamEN VE aqua CAIUCrEL; et
venae diameter, ad distanciam quasi dimidii disiti a Foramine quam
accuracissime mensurata, prodiie partium riginti ex unius quadragcli-
marum digiri. Rrat isicur diameter Foraminis hujus circularis ad
diametrum vene VE 25 ad 2F quamproximO. PEF CxPCrIMeNEA VerO
constat quod quancicas agux quxe per toramen circulare in fundo
valis Factum eAuit, ea eA quae, pro diamerro venae, cum velocitate
Praedicta cAluere debec.
In sequencibus isicur, plano Foraminis parallelum duci intellisa-
cur planum aliud superius ad distanciam diametro Foraminis aequa-
lem vel paulo majorem ec Foramine majore pertusum, per quod
utique rena cadat quae adaequare impleat
Foramen inferius PF, acque adeo cujus
diameter sic ad diametrum Foraminis in- l
Ferioris ut 25 ad 21 circiter. Sic enim
vena per Foramen interius perpendicu-
lariter transibie; ex quantitas aquae cf.
Auencis, pro magnitudine Foraminis hu-
jus, ca erit quam solutio Problematis p0.
Culac quamproxime. Spatium vero quod
Planis duobus ec vena cadente clauditur,
pro Fundo rasis haberi pocest. Scd ut
Colurio Problematis simplicior (IC Sc ma-
Sis Machematicas praectat adhibere pla
num solum inferius pro Fundo ralis, ec
tingere quod aqua quae per slaciem ceu per infundibulum detlue-
bac, ex C vase per Foramen F. S cgrediebatur, motum cuum per-
Decuo servet ex glacies quierem suam etiamsi in aquam Auidam
relolvatur.
Ca5. 2. Si Foramen E F non sic in medio tundi valis, led tuit
dum alibi PCrForetur: aqua eAluet eadem cum relocitate ac prius,
si modo eadem sic Foraminis magnitudo. Nam grare majori qui
dem tempore descendit ad eandem protunditatem per lineam ob-
liquam quam per lincam perpendicularem, sed descendendo can-
dem
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