Full text: Musschenbroek, Petrus: Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes

# Numerus ictuum. # Gravitates ſpecificæ. # Durities.
Metallum. Plumbum # 27 # 11,325 # 2,304
Stannum # 35 # 7,471 # 4,550
Argentum minoris valoris \\ Hollandici # 171 # 10,340 # 16,536
Aurum ducator. # 240 # 18,261 # 13,142
Cuprum rubrum # 99 # 8,784 # 11,278
Orichalcum # 312 # 8,000 # 39,
Ferrum Suecicum # 616 # 7,645 # 80,575
Aqua vulgaris # # 1,000 #

Si corpora duriora Chalybe, aut æque dura exploranda forent,
prius cuneus multo durior ex aliâ materiâ conficiendus erit: atta-
men dubito an corpora valde fragilia, uti vitrum & ſimilia, hac
methodo exmianari poſſent, cum ſimulac aliqua vi cuneus in ipſa adi-
gatur, ſtatim in plurima diſſilient fragmenta: ſed præſtantior & univerſalior methodus a poſteris quidem invenietur, monere tan-
tum voluimus, quid incognitum in doctrina Cohærentiæ corpo-
rum firmorum & accuratius indagandum reſtabat.

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