Musschenbroek, Petrus van, Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae

Table of contents

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[11.] EXPERIMENTUMI
[12.] EXPERIMENTUM II.
[13.] EXPERIMENTUM III.
[14.] EXPERIMENTUM IV.
[15.] EXPERIMENTUM V.
[16.] EXPERIMENTUM VI.
[17.] EXPERIMENTUM VII. & VIII.
[18.] EXPERIMENTUM IX, X, XI, XII.
[19.] EXPERIMENTUM XIII.
[20.] EXPERIMENTUM XIV.
[21.] EXPERIMENTUM XV.
[22.] CAPUT II. DE ACTIONE MAGNETIS IN FERRUM.
[23.] Flagrat anbela ſilex, & amicam ſaucia ſentit Materiam, placidosque chalybs cognoſcit amores.
[24.] EXPERIMENTUM XVI.
[25.] EXPERIMENTUM XVII.
[26.] EXPERIMENTUM XVIII.
[27.] EXPERIMENTUM XIX.
[28.] EXPERIMENTUM XX.
[29.] EXPERIMENTUM XXI.
[30.] EXPERIMENTUM XXII.
[31.] EXPERIMENTUM XXIII.
[32.] EXPERIMENTUM XXIV.
[33.] EXPERIMENTUM XXV.
[34.] EXPERIMENTUM. XXVI.
[35.] EXPERIMENTUM XXVII.
[36.] EXPERIMENTUM. XXVIII.
[37.] EXPERIMENTUM XXIX.
[38.] EXPERIMENTUM XXX.
[39.] PROCESSUS PRIMUS.
[40.] PROCESSUS SECUNDUS.
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4329DE MAGNETE. in Experimento V.) ſuſpendi ex Libræ brachio, quo prius ope pon-
deris Lanci injecti reducto ad æquilibrium, repulſionis magnitudines
obſervavi ſequentes.
11
Repulſiones ad diſtantiam \\ poll. # Linear. # æquales granis Medicis.
14 # 0 # {1/2}
13 # 0 # {3/4}
11 # 9 # 1
10 # 9 # {1/2}
10 # 4 # 0 # } # ſive ſimplex æquilibrium uti \\ ante inſtituta Experimenta.
9 # 10 # 0
9 # 4 # {1/4}
9 # 0 # {1/4}
8 # 3 # {3/4}
7 # 9 # 1
7 # 6 # 1 {1/2}
6 # 9 # 2
6 # 4 # 2 {1/2}
5 # 9 # 2
5 # 4 # 2
5 # 2 # 2 {1/2}
4 # 9 # 3
3 # 10 # 1
Quando Magnetem alteri propius admovebam, non amplius re-
pellebatur, ſed attrahebatur:
nam ad diſtantiam 3 pollic. 6 linear.
erat attractio æqualis 7 granis. Neſcio an quidem aliquid plus ano-
mali obſervari poſſit, quam repulſiones hæ demonſtrant, quæ in
magna diſtantia 14 pollicum ſunt notabiles, in minori æquali 10 poll.

obſervabatur nulla, tum iterum in propiori diſtantia usque ad 4 polli-
ces, increſcebat, dein in propiori decreſcebat, tum mutabatur in
vim attrahentem:
Polinierius in Experienc. Phyſiq. pag. 279. etiam
adnotavit, quod Polus Magnetis, qui acus nauticæ extremitatem
repellebat in majori diſtantia, eam attrahebat cum propius admove-
batur:
quicquid horum ſit, valde anomali ſunt hi effectus: quare
cum alio Magnete, quo uſus fui in Experimento III.
idem

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