Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

Table of contents

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[61. ALEXANDRO FARNESIO CARDINALI AMPLISSIMO ET OPTIMO.]
[62. FEDERICI COMMANDINI VRBINATIS LIBER DE CENTRO GRAVITATIS SOLIDORVM. DIFFINITIONES.]
[63. PETITIONES.]
[64. THEOREMA I. PROPOSITIO I.]
[65. THEOREMA II. PROPOSITIO II.]
[66. THE OREMA III. PROPOSITIO III.]
[67. THE OREMA IIII. PROPOSITIO IIII.]
[68. ALITER.]
[69. THEOREMA V. PROPOSITIO V.]
[70. COROLLARIVM.]
[71. THEOREMA VI. PROPOSITIO VI.]
[72. THE OREMA VII. PROPOSITIO VII.]
[73. THE OREMA VIII. PROPOSITIO VIII.]
[74. THE OREMA IX. PROPOSITIO IX.]
[75. PROBLEMA I. PROPOSITIO X.]
[76. PROBLEMA II. PROPOSITIO XI.]
[77. PROBLEMA III. PROPOSITIO XII.]
[78. PROBLEMA IIII. PROPOSITIO XIII.]
[79. THEOREMA X. PROPOSITIO XIIII.]
[80. THE OREMA XI. PROPOSITIO XV.]
[81. THE OREMA XII. PROPOSITIO XVI.]
[82. THE OREMA XIII. PROPOSITIO XVII.]
[83. THEOREMA XIIII. PROPOSITIO XVIII.]
[84. THEOREMA XV. PROPOSITIO XIX.]
[85. THE OREMA XVI. PROPOSITIO XX.]
[86. THEOREMA XVII. PROPOSITIO XXI.]
[87. THE OREMA XVIII. PROPOSITIO XXII.]
[88. THEOREMA XIX. PROPOSITIO XXIII.]
[89. PROBLEMA V. PROPOSITIO XXIIII.]
[90. THEOREMA XX. PROPOSITIO XXV.]
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FEDERICI COMMANDINI
VRBINATIS LIBER DE CENTRO
GRAVITATIS SOLIDORVM.
DIFFINITIONES.

CEntrvm grauitatis, Pappus
Alexandrinus in octauo ma-
thematicarum collectionum
libro ita diffiniuit.
λέγομεν δἐ κἐντρον βάρους ἑκά στου σἀ
ματος {εἶ}ναι σημ\~ειον τικείμενον ἑντὸς, ἀφ
οὖ κα\’τ ἐποίνιαν ἀρτηθέν τό βάρος ἡμερ{εἶ}
φερόμενον, καὶ φυλὰσσει τήν ἐξἀρχ\~νςθἐ-
σιν, οὐ μὴ περιτρεπ ὸμενον ἐντῆ φορᾶ.
hoc eſt,
Dicimus autem centrum grauitatis uniuſcu-
inſque corporis punctum quoddam intra poſi-
cum, à quo ſi graue appenſum mente concipia-
tur, dum fertur quieſcit;
& ſeruat eam, quam in
principio habebat poſitionem:
neque in ipſa la-
tione circumuertitur.
Poſſumus etiam hoc modo diffinire.
Centrum grauitatis uniuſcuiuſque ſolidæ figu
ræ eſt punctum illud intra poſitum, circa quod
undique partes æqualium momentorum conſi-
ſtunt.
ſi enim per tale centrum ducatur planum
figuram quomodocunque ſecans ſemper in par-

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