Full text: Gravesande, Willem Jacob: Physices elementa mathematica, experimentis confirmata, sive introductio ad philosophiam Newtonianam

Pono aquam fluere ex foramine circulari, cujus diameter
eſt ſemi pollicis Rhenolandici; agitur ulterius hìc de pe-
dibus Rhenolandicis.

833.
Altitudo \\ Aquæ # Tempus in quo \\ pes cylindricus aquæ effluit.
4 pedes # 52, 16. Min. S. 5 # 46, 60. 6 # 42, 59, 7 # 39, 43. 8 # 36, 89. 9 # 34, 78. 10 # 32, 99. 11 # 31, 55. 12 # 30, 12.
Altitudo \\ Aquæ. # Tempus in quo \\ pes cylindricus Aquæ effluit.
13 pedes # 28, 94. Min. S.
14 # 27. 88.
15 # 26, 94.
16 # 26, 08.
17 # 25, 30
18 # 24, 59
19 # 23, 93.
20 # 23, 33.
21 # 22, 71.

Si foramina differant & altitudo maneat, quantitas
fluidi quæ determinato tempore exit, ipſius foraminis ra-
tionem ſequitur, ſi in omnibus punctis foraminis æquali
velocitate fluidum feratur; quod quamvis non obtineat,
parum tamen a memorata ratione aberrare quantitates, quæ
revera exeunt, experimentis cum aqua inſtitutis con-
ſtat.

323.1.

834.

Cæteris paribus, quantitates quæ effluunt, eſſe ut tempora
clarum eſt: ſunt ergo quantitates hæ generaliter in ratio-
ne compoſita temporis, foraminum , & radicum quadr atarum altitudinum fluidi ſupra foramina .

323.1.

835.
834.
832.

In vaſis, in quibus fluidi adfluxus non datur, hujus ce-
leritas dum effluit continuo mutatur, ad quod attenden-
dum in comparatione temporum in quibus vaſa diverſa e-
vacuantur.

323.1.

836.

Vaſa cylindricâ hìc conſideramus, & dicta, ad vaſa quæ-
cunque eandem juxta integram altitudinem capacitatem
ſervantia, referri poterunt; ponimus fluidum per foramen
in fundo effluere.

Tempora, in quibus vaſa cylindrica, ejuſdem diametri
& altitudinis, evacuantur, fluido ex foraminibus in-
æqualibus fluente, ſunt inter ſe inverſe ut bæc fo-
ramina.

323.1.

837.

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