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
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Notes
Handwritten
Figures
Content
Thumbnails
Table of handwritten notes
<
1 - 2
[out of range]
>
<
1 - 2
[out of range]
>
page
|<
<
(126)
of 795
>
>|
<
echo
version
="
1.0RC
">
<
text
xml:lang
="
la
"
type
="
free
">
<
div
xml:id
="
echoid-div92
"
type
="
section
"
level
="
1
"
n
="
92
">
<
pb
o
="
126
"
file
="
0140
"
n
="
140
"
rhead
="
DISSERTATIO
"/>
<
p
>
<
s
xml:id
="
echoid-s3053
"
xml:space
="
preserve
">Sed hæc maſſa ſive integra, ſive in pulverem tuſa, vehementer
<
lb
/>
& </
s
>
<
s
xml:id
="
echoid-s3054
"
xml:space
="
preserve
">a Magnete & </
s
>
<
s
xml:id
="
echoid-s3055
"
xml:space
="
preserve
">ab Acu Nautica attrahitur, & </
s
>
<
s
xml:id
="
echoid-s3056
"
xml:space
="
preserve
">ad longe majorem
<
lb
/>
diſtantiam quam Limatura Ferri recens: </
s
>
<
s
xml:id
="
echoid-s3057
"
xml:space
="
preserve
">quod manifeſto probat ne-
<
lb
/>
que Sulphur, neque Salem Ferri eſſe materiam attractioni propriam,
<
lb
/>
ſed aliquam aliam, quæ eo fortius attrahitur, quo accuratius orbata
<
lb
/>
eſt Sulphure & </
s
>
<
s
xml:id
="
echoid-s3058
"
xml:space
="
preserve
">Sale.</
s
>
<
s
xml:id
="
echoid-s3059
"
xml:space
="
preserve
"/>
</
p
>
<
p
>
<
s
xml:id
="
echoid-s3060
"
xml:space
="
preserve
">Hæc materia cohærebat hactenus cum terra ſolida, quam in vi-
<
lb
/>
trum abire ſuperius monui, & </
s
>
<
s
xml:id
="
echoid-s3061
"
xml:space
="
preserve
">quæ nullam vim in ſe habet: </
s
>
<
s
xml:id
="
echoid-s3062
"
xml:space
="
preserve
">igitur
<
lb
/>
ſeparanda erat ab hac terrâ inerti, quantum poterat; </
s
>
<
s
xml:id
="
echoid-s3063
"
xml:space
="
preserve
">in eo ſecutus
<
lb
/>
fui Cl. </
s
>
<
s
xml:id
="
echoid-s3064
"
xml:space
="
preserve
">Lemmerium, qui ad pulverem redactæ materiæ affudit Spi-
<
lb
/>
ritum Nitri; </
s
>
<
s
xml:id
="
echoid-s3065
"
xml:space
="
preserve
">abſque efferveſcentia ſenſibili ſolvebatur pulvis, atque
<
lb
/>
ad ſuperficiem abibat in pulverem album, pinguiuſculum, qui ſæ-
<
lb
/>
pe aliquamdiu candorem retinet, aliquando fulvus fit; </
s
>
<
s
xml:id
="
echoid-s3066
"
xml:space
="
preserve
">hic pulvis
<
lb
/>
collectus ſeorſim, & </
s
>
<
s
xml:id
="
echoid-s3067
"
xml:space
="
preserve
">prope exſiccatus attrahitur vi majori adhuc a
<
lb
/>
Magnete vel a lamina Chalybea, quam maſſa præcedens attracta
<
lb
/>
fuit: </
s
>
<
s
xml:id
="
echoid-s3068
"
xml:space
="
preserve
">videtur hoc corpus id ſolum eſſe, quod in Ferro cauſa attractio-
<
lb
/>
nis exiſtit, quodque miſtum cum aliis corporum generibus, ut Fer-
<
lb
/>
rum conſtituat, agere impeditur aliquomodo.</
s
>
<
s
xml:id
="
echoid-s3069
"
xml:space
="
preserve
"/>
</
p
>
<
p
>
<
s
xml:id
="
echoid-s3070
"
xml:space
="
preserve
">Forſitan ſimile aut idem corpus in Magnete eſt ſolum id, quod at-
<
lb
/>
tractionem in eo excitat, quod quo purius eſt & </
s
>
<
s
xml:id
="
echoid-s3071
"
xml:space
="
preserve
">in majori quantita-
<
lb
/>
te, eo Magnetem præſtantiorum virium facit: </
s
>
<
s
xml:id
="
echoid-s3072
"
xml:space
="
preserve
">Id autem quadante-
<
lb
/>
nus colligi poteſt ex Magnetibus, qui tempore generantur in aëre ex
<
lb
/>
Ferro: </
s
>
<
s
xml:id
="
echoid-s3073
"
xml:space
="
preserve
">quod cum ab aëre in rubiginem corroditur, ſuos Sales miſcet
<
lb
/>
cum materia terreſtri, Sulphur miſcetur cum Salibus per aërem na-
<
lb
/>
tantibus, & </
s
>
<
s
xml:id
="
echoid-s3074
"
xml:space
="
preserve
">idcirco ex Ferro ſeparantur ex ſe ejus principia com-
<
lb
/>
ponentia: </
s
>
<
s
xml:id
="
echoid-s3075
"
xml:space
="
preserve
">ſcilicet terra, materia Magnetica, Sal, Sulphur; </
s
>
<
s
xml:id
="
echoid-s3076
"
xml:space
="
preserve
">cum igi-
<
lb
/>
tur materia Magnetica ſimul cum pluvia ingreditur poros lapidis,
<
lb
/>
cui Ferrum inhæret, eos in veros Magnetes mutat, quos, expe-
<
lb
/>
rientia teſte, deprehendimus perpetuo ubicunque modo Ferrum aëri
<
lb
/>
diu expoſitum lapidique infixum ſpongioſo fuerit.</
s
>
<
s
xml:id
="
echoid-s3077
"
xml:space
="
preserve
"/>
</
p
>
<
p
>
<
s
xml:id
="
echoid-s3078
"
xml:space
="
preserve
">Ex hac Analyſi liquet manifeſto, cur Chalybs melius imbuatur
<
lb
/>
vi Magnetica, eandemque retineat, quam Ferrum: </
s
>
<
s
xml:id
="
echoid-s3079
"
xml:space
="
preserve
">Chalybs enim
<
lb
/>
antequam uſibus convenit, aliquoties eſt igniendus & </
s
>
<
s
xml:id
="
echoid-s3080
"
xml:space
="
preserve
">cudendus, in
<
lb
/>
Igne certo certius deponens aliquantum ſui Sulphuris vel Olei, unde
<
lb
/>
nunquam tam flexilis eſt poſtea, quam Ferrum, tum igitur Chalybs
<
lb
/>
depuratur magis ab heterogenea materia adhærente, & </
s
>
<
s
xml:id
="
echoid-s3081
"
xml:space
="
preserve
">pro </
s
>
</
p
>
</
div
>
</
text
>
</
echo
>