Bošković, Ruđer Josip
,
Theoria philosophiae naturalis redacta ad unicam legem virium in natura existentium
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orbem ſphæricum, vel ellipticum vacuum nullas vires ſentit,
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eliſis contrariis; </
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cte proportionalem diſtantiæ a centro; </
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<
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culis exiguis ejuſmodi vires fere evaneſcant, & </
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<
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res adhuc etiam in iis ſint admodum ſenſibiles, debeant decre-
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ſcere in ratione multo majore, quam reciproca duplicata di-
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ſtantiarum. </
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<
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">Hujuſmodi etiam ſunt, quæ Mac-Laurinus tradi-
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dit de ſphæroide elliptico potiſſimum, quæ Clairautius de at-
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tractionibus pro tubulis capillaribus, quæ D’Alembertus, Eu-
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lerus, aliique pluribus in locis perſecuti ſunt; </
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<
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chanica, quæ agit vel de æquilibrio, vel de motibus, ſecluſa
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omni impulſione, huc pertinet, & </
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<
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poteſt curvæ noſtræ, qui poſſunt eſſe quantumlibet multi, ha-
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bere quaſcunque amplitudines, ſive diſtantias limitum, & </
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reas, quæ ſint inter ſe in ratione quacunque, ac ad curvas
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quaſcunque ibi accedere, quantum libuerit; </
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ſum abiret, & </
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<
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rum ſi puncta
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ſint in recta
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verticali.</
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nent ad preſſionem, & </
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ctione quacunque AB puncta diſpoſita in eadem recta in fig.
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<
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">66 vi quadam externa reſpectu ſyſtematis eorum punctorum,
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cujus actionem mutuis viribus elidant ea puncta, & </
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quilibrio. </
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mum debebit eſſe vis repulſiva, quæ æquetur vi externæ pun-
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cti A. </
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& </
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<
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& </
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<
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">tertium punctum debebit æquari vi huic utrique, adeoque
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erit æqualis ſummæ virium externarum puncti primi, & </
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cundi. </
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<
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æquali ſummæ virium externarum omnium trium; </
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">& </
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<
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ro progrediendo uſque ad B, quodvis punctum urgebitur deor-
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ſum vi æquali ſummæ virium externarum omnium ſuperiorum
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punctorum.</
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<
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<
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utcunque diſ-
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perſis, & cum
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omnibus dire-
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ctionibus agens.</
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diſperſa per parallelepipedum, cujus baſim perpendicularem di-
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rectioni vis externæ exprimat recta FH in fig. </
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faciem ipſi parallelam; </
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<
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ponendo, vel reſolvendo vires; </
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pulſivas, quas debebit ipſa baſis exercere in particulas ſibi pro-
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pinquas, & </
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ſummæ omnium ſuperiorum virium externarum; </
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<
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commune tam ſolidis, quam fluidis. </
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<
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ticulæ poſſunt ferri directione quacunque, quod unde proveniat,
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videbimus in tertia parte; </
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<
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in omnem plagam urgebitur viribus æqualibus, & </
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bit ſibi
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proximas, quæ preſſionem in alias propagabunt ita, ut, quæ
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ſint in eodem plano LI, parallelo FH, in cujus </
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