1ſhining more than any other matter doth ſhew) do not all, nay
but very few of them incounter pure Magnet; and the contacts
being few, the union is but weak. But becauſe the cap of the
Load-ſtone, beſides the contact of a great part of its ſuperficies,
inveſts its ſelf alſo with the virtue of the parts adjoyning,
though they touch not; that ſide of it being exactly ſmoothed
to which the other face, in like manner well poliſht of the Iron to
be attracted, is applyed, the contact is made by
ble minute particles, if not haply by the infinite points of both
the ſuperficies, whereupon the union becometh very ſtrong.
This obſervation of ſmoothing the ſurfaces of the Irons that are
to touch, came not into the thoughts of Gilbert, for he makes
the Irons convex, ſo that their contact is very ſmall; and
upon it cometh to paſſe that the tenacity, wherewith thoſe Irons
conjoyn, is much leſſer.
but very few of them incounter pure Magnet; and the contacts
being few, the union is but weak. But becauſe the cap of the
Load-ſtone, beſides the contact of a great part of its ſuperficies,
inveſts its ſelf alſo with the virtue of the parts adjoyning,
though they touch not; that ſide of it being exactly ſmoothed
to which the other face, in like manner well poliſht of the Iron to
be attracted, is applyed, the contact is made by
ble minute particles, if not haply by the infinite points of both
the ſuperficies, whereupon the union becometh very ſtrong.
This obſervation of ſmoothing the ſurfaces of the Irons that are
to touch, came not into the thoughts of Gilbert, for he makes
the Irons convex, ſo that their contact is very ſmall; and
upon it cometh to paſſe that the tenacity, wherewith thoſe Irons
conjoyn, is much leſſer.
SAGR. I am, as I told you before, little leſſe ſatisfied with
this reaſon, that if it were a pure Geometrical Demonſtration;
and becauſe we ſpeak of a Phyſical Problem, I believe that alſo
Simplicius will find himſelf ſatisfied as far as natural ſcience
mits, in which he knows that Geometrical evidence is not to be
required.
this reaſon, that if it were a pure Geometrical Demonſtration;
and becauſe we ſpeak of a Phyſical Problem, I believe that alſo
Simplicius will find himſelf ſatisfied as far as natural ſcience
mits, in which he knows that Geometrical evidence is not to be
required.
SIMP. I think indeed, that Salviatus with a fine
cution hath ſo manifeſtly diſplayed the cauſe of this effect, that
any indifferent wit, though not verſt in the Sciences, may
prehend the ſame; but we, confining our ſelves to the terms of
Art, reduce the cauſe of theſe and other the like natural effects
to Sympathy, which is a certain agreement and mutual appetite
which ariſeth between things that are ſemblable to one another
in qualities; as likewiſe on the contrary that hatred & enmity for
which other things ſhun & abhor one another we call Antipathy.
cution hath ſo manifeſtly diſplayed the cauſe of this effect, that
any indifferent wit, though not verſt in the Sciences, may
prehend the ſame; but we, confining our ſelves to the terms of
Art, reduce the cauſe of theſe and other the like natural effects
to Sympathy, which is a certain agreement and mutual appetite
which ariſeth between things that are ſemblable to one another
in qualities; as likewiſe on the contrary that hatred & enmity for
which other things ſhun & abhor one another we call Antipathy.
Sympathy and
Antipathy, terms
uſed by
phers to give a
ſon eaſily of
ny narural effests.
Antipathy, terms
uſed by
phers to give a
ſon eaſily of
ny narural effests.
SAGR. And thus with theſe two words men come to render
reaſons of a great number of accidents and effects which we ſee
not without admiration to be produced in nature. But this kind
of philoſophating ſeems to me to have great ſympathy with a
certain way of Painting that a Friend of mine uſed, who writ
upon the Tele or Canvaſſe in chalk, here I will have the
tain with Diana and her Nimphs, there certain Hariers, in this
corner I will have a Huntſ-man with the Head of a Stag, the reſt
ſhall be Lanes, Woods, and Hills; and left the remainder for
the Painter to ſet forth with Colours; and thus he perſwaded
himſelf that he had painted the Story of Acteon, when as he had
contributed thereto nothing of his own more than the names.
But whether are we wandred with ſo long a digreſſion, contrary
to our former reſolutions? I have almoſt forgot what the point
was that we were upon when we fell into this magnetick
reaſons of a great number of accidents and effects which we ſee
not without admiration to be produced in nature. But this kind
of philoſophating ſeems to me to have great ſympathy with a
certain way of Painting that a Friend of mine uſed, who writ
upon the Tele or Canvaſſe in chalk, here I will have the
tain with Diana and her Nimphs, there certain Hariers, in this
corner I will have a Huntſ-man with the Head of a Stag, the reſt
ſhall be Lanes, Woods, and Hills; and left the remainder for
the Painter to ſet forth with Colours; and thus he perſwaded
himſelf that he had painted the Story of Acteon, when as he had
contributed thereto nothing of his own more than the names.
But whether are we wandred with ſo long a digreſſion, contrary
to our former reſolutions? I have almoſt forgot what the point
was that we were upon when we fell into this magnetick