Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

Table of contents

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[31.] LEMMAI.
[32.] LEMMA II.
[33.] LEMMA III.
[34.] LEMMA IIII.
[35.] PROPOSITIO VII.
[36.] PROPOSITIO VIII.
[37.] COMMENTARIVS.
[38.] PROPOSITIO IX.
[39.] COMMENTARIVS.
[40.] PROPOSITIO X.
[41.] COMMENTARIVS.
[42.] LEMMA I.
[43.] LEMMA II.
[44.] LEMMA III.
[45.] LEMMA IIII.
[46.] LEMMA V.
[47.] LEMMA VI.
[48.] II.
[49.] III.
[50.] IIII.
[51.] V.
[52.] DEMONSTRATIO SECVNDAE PARTIS.
[53.] COMMENTARIVS.
[54.] DEMONSTRATIO TERTIAE PARTIS.
[55.] COMMENTARIVS.
[56.] DEMONSTRATIO QVARTAE PARTIS.
[57.] DEMONSTRATIO QVINT AE PARTIS.
[58.] FINIS LIBRORVM ARCHIMEDIS DE IIS, QVAE IN AQVA VEHVNTVR.
[59.] FEDERICI COMMANDINI VRBINATIS LIBER DE CENTRO GRAVITATIS SOLIDORV M.
[60.] CVM PRIVILEGIO IN ANNOS X. BONONIAE, Ex Officina Alexandri Benacii. M D LXV.
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page |< < (23) of 213 > >|
15723DE CENTRO GRAVIT. SOLID. eſtſolidi g m altitudo ad o e altitudinem ſolidi m c, uel quã
axis
k q ad q l axem.
Si uero axis k l non ſit perpendicularis
ad
planum baſis;
ducatur a puncto k ad idem planum per
pendicularis
k r, occurrẽs plano m n o p in s.
ſimiliter de-
mõſtrabimus
ſolidum g m ad ſoli m c ita eſſe, ut axis k q
ad
axem q l.
Sed ut K q ad q l, ita k s altitudo ad altitudi-
nem
s r, nam lineæ K l, K r à planis æquidiſtantibus in eaſ-
1117. unde-
cimi
dem proportiones ſecantur.
ergo ſolidum g m ad ſolidum
m
c eandẽ proportionem habet, quam altitudo ad altitu
dinẽ
, uel quam axis ad axem.
quod demõſtrare oportebat.
Sint ſolida parallelepipeda in eadẽ baſi cõſtituta a b c d,
a
b e f:
& ſit ſolidi a b c d altitudo minor: producatur au-
tem
planum c d adeo, utſolidum a b e f ſecet;
cuius ſectio
ſit
g h.
erũſoli
111[Figure 111]2229. unde-
cimi
da a b c d, a b g h
in
eadem baſi,
&
æquali altitu
dine
inter ſe æ-
qualia
.
Quoniã
igitur
ſolidum
a
b e f ſecatur
plano
baſibus
æquidiſtãte
, erit
ſolidum
g h e f
3318. huius adipſum a b g

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