Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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rem ideo rogo ut hæc velit inſerere ad pag. </
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fig. 1</
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, aber geht auch
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ein anchor?</
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">Si corpus cujus extremitas conica eſt ut E B F bis, in
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diverſis ſuperficiei argillæ partibus, in hanc incurrat, ve-
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locitatibus quæ ſunt ut unum ad duo, cavitates erunt ut u-
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num ad quatuor, ut ex ante dictis conſtat & </
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456.</
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cavitates menſurando, detegitur. </
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fectus hicce quadruplus editur majus eſt; </
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iam quadruplum eſſe, quamvis minori tempore vim ſuam
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corpus amittat, experimento ſequenti clarum eſt.</
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fig. 1</
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4.</
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">Formatur ex ebore, aut ligno duriore, Cylindrus, qui
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ab una parte cono ut E B F terminatur, baſis oppoſita qua-
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tuor conis, omnino huic ſimilibus, obtegitur, qui ſinguli
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æqualiter prominent ita, ut planum, per quatuor vertices
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tranſiens, perpendiculare ſit ad axem cylindri; </
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ditur hicce ut ille, quo in præcedenti experimento uſi ſu-
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mus, & </
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ſuperficiem incurrit, dum juxta directionem ad axim pa-
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rallelam fertur, cono unico in argillam impingente.</
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locitate dupla in argillam incurrat cylindrus, moto iterum
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hoc juxta axis directionem.</
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<
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quatuor formantur, quarum ſingulæ priori quàm exactiſſi-
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mè æquales ſunt.</
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lam penetraverit corpus, clarum eſt, minori tempore vim
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integram amiſiſſe, ubi velocitas major fuit.</
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runt emboli, ſi hi ſinguli, in inferiori parte, inter duasla-
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minas æneas orbem contineant ex ſubere ita, ut annulus
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coriaceus intruſo embolo, ſeſe ſuberi non ipſi metallo ap-
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plicet. </
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obſervavi.</
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