Ghetaldi, Marino
,
Marini Ghetaldi Promotvs Archimedis sev de varijs corporum generibus grauitate & magnitudine comparatis
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corona, ſed quælibet particulæ, grauitate quacunque, ctiam
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differentes interſe, ſufficiunt.</
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<
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">Deratione autem, qua Archimedes, cognitis grauitatibus
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trium corporum ex aqua, magnitudine æqualium, coronæ
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ſcilicet vnum, alterum maſſæ auree, tertium argenteæ, potue-
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rit furtum aurificis in regia corona deprehendere, atque ar-
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gentum quod erat in ea permixtum ab auro diſcernere, pluri-
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mi ſcripſerunt, modos etiam ad id faciendum excogitarunt
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varios, longa tamen methodo, atque difficili vſi ſunt, & </
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maximam confuſionem, & </
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tionis tradunt præceptum firmum, ac ſtabile. </
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<
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">ego autem vni-
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ca tantum proportionis ratiocinatione, ſeu regula trium (vt
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vulgo dicitur) breuiter, & </
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<
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">expedite idem conſequor, eamque
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geometrica ratione demonſtro. </
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<
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">Problema igitur ad hoc facien
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dum ita concipio & </
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ris ratiocinatione diſcernere.</
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">QVONIAM de Hieronis corona facta eſt mentio, ſit ea B,
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eiuſque grauitas EK, & </
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">oporteat argentum, quod ſit in ea permixtũ,
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ab auro diſcernere, hoc eſt oporteat inuenire quanta erit portio ar-
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genti, & </
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telligantur duo corpora
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A, D, vnum aureum, al-
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terum argenteum æque
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grauia atque corona,,
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deinde trium corporum
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ex aqua, magnitudine,
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æqualium, aureo ſcili-
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cet corpori vnum, alte-
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rum coronæ, tertium
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corpori argenteo, inue-
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niantur grauitates, id autem poterit fieri facillime, ſi accipiãtur duo
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corpora vnum ex auro, alterum ex argento, grauitate quacunque, </
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