Huygens, Christiaan, Christiani Hugenii opera varia; Bd. 1: Opera mechanica

Table of figures

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[91] Fig. 4.D L C E A X V G H L D B
[92] Fig. 5.T F K A V Q Z D E O B X P C Y f I G M L R N S H
[93] Fig. 6.K E A H C L D F G B
[94] Pag. 154.TAB. XXI.Fig. 1.G E G O A K L Q Q M M H F R R N N B D L K C P S V X Z Y X V T
[95] Fig. 3.F A D E B C G H
[96] Fig. 2.G E Ω O Ω S A S Q Q M M R R N X F N V P Φ Δ V B C K D Z
[97] Pag. 156.Fig. 2.S F Z V O V L A Q Q M M I R R N N X T X K E K Y H G P B C D
[98] Fig. 1.F H A E G B C
[99] Fig. 3.C B A E D
[100] Fig. 4.E F E D D D V O B A N C K H
[101] Fig. 5.D D D E F E B A C H K
[102] Pag. 160.Fig. 1.F D D @ N A L C H K M
[103] Fig. 2.D D D F B A L C H K
[104] Fig. 3.C A B
[105] Fig. 4.B A K C E D G
[106] G D E C A K B
[107] G D K C A B
[108] Fig. 5.K B K A C E D F
[109] Fig. 6.Q B Q O N A C E D R P F
[110] Pag. 164.Fig. 1.G B O N C R P F
[111] Fig. 2.G B R F
[112] Fig. 3.A E C F B
[113] Fig. 4.A C E D F B
[114] Fig. 6.A B C G D L
[115] Fig. 5.H A O M R L N
[116] Pag. 166.TAB.XXV.Fig. 1.A O C G D L N
[117] Fig. 2.A B C G D L N
[118] Fig. 3.O C D A K B N E F C D L M
[119] Fig. 4.O A C D F E K B N C L D M
[120] Fig. 5.E A G F H K B D C
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9660CHRISTIANI HUGENII
11De de-
SOENSU
GRAVIUM.
PROPOSITIO V.
SPatium peractum certo tempore, à gravi è quie-
te caſum inchoante, dimidium eſſe ejus ſpatii
quod pari tempore transiret motu æquabili, cum
celeritate quam acquiſivit ultimo caſus momento.
Sit tempus deſcenſus totius A H, quo tempore mobile
22TAB. V.
Fig. 3.
peregerit ſpatium quoddam cujus quantitas deſignetur plano P.
ductaque H L perpendiculari ad A H, longitudinis cujus-
libet, referat illa celeritatem in fine caſus acquiſitam.
Dein-
de completo rectangulo A H L M, intelligatur eo notari
quantitas ſpatii quod percurreretur tempore A H, cum ce-
leritate H L.
Oſtendendum eſt igitur planum P dimidium
eſſe rectanguli M H, hoc eſt, ducta diagonali A L, æqua-
le triangulo A H L.
Si planum P non eſt æquale triangulo A H L, ergo aut
minus eo erit, aut majus.
Sit primo, ſi fieri poteſt, pla-
num P minus triangulo A H L.
dividatur autem A H in tot
partes æquales A C, C E, E G &
c. ut, circumſcriptâ tri-
angulo A H L figurâ è rectangulis quorum altitudo ſingulis
diviſionum ipſius A H partibus æquetur, ut ſunt rectangula
B C, D E, F G, alterâque eidem triangulo inſcriptâ, ex
rectangulis ejusdem altitudinis, ut ſunt K E, O G &
c. ut,
inquam, exceſſus illius figuræ ſupra hanc, minor ſit exceſ-
ſu trianguli A H L ſupra planum P.
hoc enim fieri poſſe
perſpicuum eſt, cum totus exceſſus figuræ circumſcriptæ ſu-
per inſcriptam æquetur rectangulo infimo, baſin habenti H L.
Erit itaque omnino exceſſus ipſius trianguli A H L ſupra
figuram inſcriptam minor quam ſupra planum P, ac proin-
de figura triangulo inſcripta major plano P.
Porro autem,
quum recta A H tempus totius deſcenſus referat, ejus par-
tes æquales A C, C E, E G, æquales temporis illius par-
tes referent.
Cumque celeritates mobilis cadentis creſcant
33Prop. I.
huj.
eadem proportione qua tempora deſcenſus ;
ſitque

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