Salusbury, Thomas
,
Mathematical collections and translations (Tome I)
,
1667
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Figures
Thumbnails
page
|<
<
of 701
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
p
type
="
main
">
<
s
>
<
pb
xlink:href
="
040/01/387.jpg
"
pagenum
="
367
"/>
Globe is Load-ſtone; but onely to ſhew that no reaſon could be
<
lb
/>
given why one ſhould be more unwilling to grant that it is of
<
lb
/>
Load-ſtone, than of ſome other matter. </
s
>
<
s
>And if you will but
<
lb
/>
<
arrow.to.target
n
="
marg700
"/>
<
lb
/>
ſeriouſly conſider, you ſhall find that it is not improbable, that
<
lb
/>
one ſole, pure, and arbitrary name, hath moved men to think
<
lb
/>
that it conſiſts of Earth; and that is their having made uſe
<
lb
/>
monly from the beginning of this word Earth, as well to
<
lb
/>
ſie that matter which is plowed and ſowed, as to name this our
<
lb
/>
Globe. </
s
>
<
s
>The denomination of which if it had been taken from
<
lb
/>
ſtone, as that it might as well have been taken from that as
<
lb
/>
from the Earth; the ſaying that its primary ſubſtance was ſtone,
<
lb
/>
would doubtleſſe have found no ſcruple or oppoſition in any
<
lb
/>
man. </
s
>
<
s
>And is ſo much the more probable, in that I verily
<
lb
/>
lieve, that if one could but pare off the ſcurf of this great Globe,
<
lb
/>
taking away but one full thouſand or two thouſand yards; and
<
lb
/>
afterwards ſeperate the Stones from the Earth, the
<
lb
/>
on of the ſtones would be very much biger than that of the
<
lb
/>
tile Mould. </
s
>
<
s
>But as for the reaſons which concludently prove
<
emph
type
="
italics
"/>
de
<
lb
/>
facto,
<
emph.end
type
="
italics
"/>
that is our Globe is a Magnet, I have mentioned none of
<
lb
/>
them, nor is this a time to alledg them, and the rather, for that
<
lb
/>
to your benefit you may read them in
<
emph
type
="
italics
"/>
Gilbert
<
emph.end
type
="
italics
"/>
; onely to
<
lb
/>
rage you to the peruſal of them, I will ſet before you, in a
<
lb
/>
<
arrow.to.target
n
="
marg701
"/>
<
lb
/>
litude of my own, the method that he obſerved in his
<
lb
/>
phy. </
s
>
<
s
>I know you underſtand very well how much the
<
lb
/>
ledg of the accidents is ſubſervient to the inveſtigation of the
<
lb
/>
ſubſtance and eſſence of things; therefore I deſire that you
<
lb
/>
would take pains to informe your ſelf well of many accidents and
<
lb
/>
properties that are found in the Magnet, and in no other ſtone,
<
lb
/>
<
arrow.to.target
n
="
marg702
"/>
<
lb
/>
or body; as for inſtance of attracting Iron, of conferring
<
lb
/>
on it by its ſole preſence the ſame virtue, of communicating
<
lb
/>
likewiſe to it the property of looking towards the Poles, as it
<
lb
/>
alſo doth it ſelf; and moreover endeavour to know by trial,
<
lb
/>
that it containeth in it a virtue of conferring upon the magnetick
<
lb
/>
needle not onely the direction under a Meridian towards the
<
lb
/>
Poles, with an Horizontal motion, (a property a long time ago
<
lb
/>
known) but a new found accident, of declining (being ballanced
<
lb
/>
under the Meridian before marked upon a little ſpherical
<
lb
/>
net) of declining I ſay to determinate marks more or leſſe,
<
lb
/>
cording as that needle is held nearer or farther from the Pole,
<
lb
/>
till that upon the Pole it ſelf it erecteth perpendicularly,
<
lb
/>
as in the middle parts it is parallel to the Axis. </
s
>
<
s
>Furthermore
<
lb
/>
cure a proof to be made, whether the virtue of attracting Iron,
<
lb
/>
reſiding much more vigorouſly about the Poles, than about the
<
lb
/>
middle parts, this force be not notably more vigorous in one
<
lb
/>
Pole than in the other, and that in all pieces of Magnet; the </
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>