Bošković, Ruđer Josip
,
Theoria philosophiae naturalis redacta ad unicam legem virium in natura existentium
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priore plano, ſed retineat ab iis duobus diſtantiam priorem,
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mutari utique debet, ut facili negotio demonſtrari poteſt.</
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<
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ſtematis pun-
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ctorum quatuor
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in eodem pla-
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no cum idea
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virgæ rigidæ,
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& flexilis: ſy-
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ſtema eorun-
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dem formæ py-
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ramidalis: or-
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dines varii par-
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ticularum py-
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ramidalium.</
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tuor, duo in focis, & </
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<
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">inde a vertice axis con-
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jugati in ea diſtantia a ſe invicem, ut vi mutua repulſiva ſibi
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invicem elidant vim, qua juxta præcedentem Theoriam urgen-
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tur in ipſum verticem; </
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<
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dam terminabunt, ut exhibet fig. </
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<
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<
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modi punctorum exhibentium ſeries continuas rectangulorum,
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habebitur quædam adhuc magis præciſa idea virgæ ſolidæ, in qua
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ſi baſis ima inclinetur; </
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<
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tur in latus, ut rectangulorum illorum poſitionem retineant, & </
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celeritas converſionis erit major, vel minor, prout major fuerit,
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vel minor vis illa in latus, quæ ubi fuerit aliquanto languidior,
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multo ſerius progredietur vertex, quam fundum, & </
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<
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ga, quæ inflexio in omni virgarum genere apparet adhuc multo
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magis manifeſta, ſi celeritas converſionis fuerit ingens. </
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<
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tra idem planum poſſunt quatuor puncta collocari ita, ut poſi-
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tionem ſuam validiſſime tueantur, etiam ope unicæ diſtantiæ
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limitis unici ſatis validi. </
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<
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">Poteſt enim fieri pyramis regularis,
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cujus latera ſingula triangularia habeant ejuſmodi diſtantiam.
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</
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<
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">Tum ea pyramis conſtituet particulam quandam ſuæ figuræ tena-
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ciſſimam, quæ in puncta, vel pyramides ejuſmodi aliquanto re-
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motiores ita poterit agere, ut ejus puncta reſpectivum ſitum ni-
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hil ad ſenſum mutent. </
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<
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">Ex quatuor ejuſmodi particulis in aliam
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majorem pyramidem diſpoſitis fieri poterit particula ſecundi or-
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dinis aliquanto minus figuræ tenax ob majorem diſtantiam par-
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ticularum primi eam componentium, qua fit, ut vires in eaſ-
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dem ab externis punctis impreſſæ multo magis inæquales inter ſe
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ſint, quam fuerint in punctis conſtituentibus particulas ordinis
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primi; </
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<
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">ac eodem pacto ex his ſecundi ordinis particulis fieri
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poſſunt particulæ ordinis tertii adhuc minus tenaces figuræ ſuæ,
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atque ita porro, donec ad eas deventum ſit multo majores,
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ſed adhuc multo magis mobiles, atque variabiles, ex quibus
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pendent chemicæ operationes, & </
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<
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">ex quibus hæc ipſa craſſiora
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corpora componuntur, ubi id ipſum accideret, quod Newtonus
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in poſtrema Opticæ quæſtione propoſuit de particulis ſuis pri-
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migeniis, & </
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<
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">elementaribus, alias diverſorum ordinum particulas
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efformantibus. </
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<
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">Sed de particularibus hiſce ſyſtematis determi-
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nati punctorum numeri jam ſatis, ac ad maſſas potius generali-
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ter conſiderandas faciemus gradum.</
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<
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">Tranſitus ad
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maſſas: quid
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centrum gravi-
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tatis: theore-
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mata hic de eo
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demonſtranda,</
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tiſſimæ ſane, ac & </
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">fœcundiſſimæ, & </
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tri gravitatis, quæ quidem e noſtra Theoria ſponte propemodum
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fluunt, aut ſaltem ejus ope evidentiſſime demonſtrantur. </
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<
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centrum gravitatis a gravium æquilibrio nomen accepit ſuum, a
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quo etiam ejus conſideratio ortum duxit; </
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