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

Table of figures

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[121] Pag. 170.TAB. XXVI.Fig. 1.Ω O Ω A Z R F R N E N R G S V P Φ Δ V B D K C
[122] Fig. 2.L O A V P Φ Δ V B E C S H D
[123] Fig. 3.F G E G P A P K K L B D B S
[Figure 124]
[Figure 125]
[126] Pag. 188.TAB.XXVII.Fig. 1.O V VA M N D N B O E CE A G B D C F
[127] Fig. 2.S Z G F H Y
[128] Fig. 3.D A D M T C
[129] Fig. 4.A E N D C
[130] Fig. 5.K D B G A F E H
[Figure 131]
[Figure 132]
[Figure 133]
[Figure 134]
[Figure 135]
[Figure 136]
[137] Pag. 248.TAB. XXVIII.Fig. 1.B A E D H F I G
[138] Fig. 2.M B A E D L N H F O I G
[139] Fig. 4.O P M I B G Q N L R H A F D
[140] Fig. 5.B A D L N H I
[141] Fig. 3.a B c A C
[142] Fig. 7.D A C B E G
[143] Fig. 6.D A G B
[Figure 144]
[145] Pag. 262.TAB.XXIX.Fig. 1.P E O D C Q H M G N B S R T F
[146] Fig. 4.C A H N E P B L K I
[147] Fig. 3.N Q O P T
[148] Fig. 2.F D I C A B H K E R S G
[149] Fig. 5.L M C M E H O D P I
[150] Pag. 268.TAB. XXX.a a I L K M g N l O c k P Q T S Q V T S R f f e n l d h g b
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page |< < (103) of 434 > >|
163103HOROLOG. OSCILLATOR.
Producto axe à parte verticis, ſumatur B E æqualis B D,
11De linea
RUM CUR-
VARUM
EVOLUTIO-
NE.
&
jungatur E A, quæ parabolam A B C in A continget.
Porro ſecetur A D in G, ut ſit A G ad G D ſicut E A ad
A D.
Et utrisque ſimul A E, D G æqualis ſtatuatur recta
H.
Item trienti baſis A C æqualis ſit recta L, & inter H
&
L media proportionalis inveniatur K. qua tanquam radio
circulus deſcribatur.
Is æqualis erit ſuperficiei curvæ conoi-
dis A B C.
Hinc ſequitur, ſi fuerit A E dupla A D, ſu-
perficiem conoidis curvam ad circulum baſeos fore ut 14 ad
9.
Si A E tripla A D, ut 13 ad 6. ſi A E quadrupla A D,
ut 14 ad 5.
Atque ita ſemper fore ut numerus ad numerum,
ſi A E ad A D ejusmodi rationem habuerit.
Sphæroidis oblongi ſuperſiciei circulum æqualem
invenire.
ESto ſphæroides oblongum cujus axis A B, centrum C,
22TAB. XIII.
Fig. 4.
ſectio per axem ellipſis A D B E, cujus minor diame-
ter D E.
Ponatur D F æqualis C B, ſeu ponatur F alter focorum
ellipſeos A D B E, rectæque F D parallela ducatur B G,
occurrens productæ E D in G.
centroque G, radio G B,
deſcribatur ſuper axe A B arcus circumferentiæ B H A.
In-
terque ſemidiametrum C D &
rectam utrisque æqualem, ar-
cui A H B &
diametro D E, media proportionalis ſit recta
K.
Erit hæc radius circuli qui ſuperficiei ſphæroidis A D B E
æqualis ſit.
Sphæroidis lati ſive compreſſi ſuperficiei circulum
æqualem invenire.
SIt ſphæroides latum cujus axis A B, centrum C, ſectio
33TAB. XIII.
Fig. 5.
per axem ellipſis A D B E.
Sit rurſus focorum alteruter F, diviſâque bifariam F C
in G, intelligatur parabola A G B quæ baſin habeat axem
A B, verticem vero punctum G.
Sitque inter dimatrum D E,
&
rectam curvæ parabolicæ A G B æqualem, media

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