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

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5743DE MAGNETE.11
# Lineæ # Grana
# 2 # 275
# 1 # 373
# {1/2} # 460
# 0 # 650
EXPERIMENTUM XXII.
Deinde vero eſſudi ex hac capſula aliquantum limaturæ, donec
haberet eandem altitudinem, quam maſſa ſolida ferri habebat, quæ
ejuſdem ponderis cum Magnete fuit, & experimenta dederunt effe-
ctus hos.
22
# Diſtant. Linear. # Grana Attractioni æqualia.
# 12 # 59
# 11 # 62
# 10 # 72
# 9 # 78
# 8 # 94
# 7 # 108
# 6 # 134
# 5 # 149
# 4 # 182
# 3 # 221
# 2 # 275
# 1 # 415
# {1/2} # 460
# 0 # 710 imo 772. in aliis punctis
contactus ejuſdem capſulæ. Hiſce omnibus obſervatis, oportebit
Experimenta inter ſe comparare, ſequelas elicere, quæ inde fluunt,
fructumque ex tantis hic impenſis laboribus carpere, quantum tuto
fieri poteſt.
Corol. 1. Manifeſto liquet Magnetem fortius ad ſe trahere fer-
rum, quam alterum Magnetem: nam in Experimento quarto, Ma-
gnetes ambo ſe contingentes exercuerant vim 128. granor. Sed
in Experimento XVI, idem Magnes attraxit ferrum in puncto conta-
ctus vi 180. granor. adeoque ferrum majori vi attractum

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