Gassendi, Pierre
,
De proportione qua gravia decidentia accelerantur
,
1646
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ipſum reſiliendo proximè attigiſſet. </
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<
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tur, vt cùm res propriè attendenda non ſit, vbi cla
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uus infra lineam defigitur, quòd tunc libratio ſimplex
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non ſit, ſed miſtio duorum motuum, quorum im
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petus ſe mutuò retundunt; ſit verò propriè atten
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tenda, cùm clauo ſupra lineam defixo, vibrationis
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motus ſimplex eſt; ideò non ſit exiſtimandum illam
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qualemcumque interuallorum inæqualitatem in
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terturbare negotium; ac potiſſimùm quidem, cùm
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ipſa ordinata ſint, ac eandem inter ſe, quàm fili, &
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arcus prolixitates proportionem ſeruent. </
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<
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">Ad hæc,
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id videtur præſertim eſſe obſeruatione dignum in
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his pendu orum vibrationibus, quòd, Si quatuor di
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ſtinctos g obos quatuor diſtinctis filis ſic appendas,
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vt primi longitudo ſit vnius, v. c. pedis, ſecundi qua
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tuor, tertij nouem, quarti ſexdecim; experturus ſis,
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vbi omnes dimiſſi ſimul fuerint, quartum perfectu
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rum vnam vibrationem eodem tempore, quo ter
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tius interim perfecerit duas, ſecundus treis, & primus
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quatuor. </
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<
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">Scilicet exinde intelligitur, tum pendulo
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rum vibrationes tantò ſegnius fieri, quantò earum
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arcus planiores, ſiue inclinatiores ſunt; tum inclina
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tiones arcuum menſuratas ſecundum varias perpen
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diculi, ſeu fili longitudines, habere ſe perinde vt qua
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drata temporum, ac vibrationes habere ſe reciprocè
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vt ipſas radices; ſicque rem eximiè quadrare ad ſu
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periùs expoſitam motus æquabilis rationem; tum
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globum quartum non acquirere impetum ad eleua
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tionem neceſſarium, niſi tempore duplo tertij, tri
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plo ſecundi, quadruplo primi; ac eſſe quidem im-</
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