1tion is not inferiour; whereupon, we muſt of neceſſity conclude
that it is nothing: becanſe, if it were of any ſenſible power, ſome
large Plate might be found or compounded of a Matter alike in
vity to the water, which not only would ſtay between the two
ters; but, moreover, ſhould not be able to deſcend or aſcend
out notable force. We may likewiſe collect the ſame from an
ther Experiment, ſhewing that the Water gives way alſo in the ſame
manner to tranſverſall Diviſion; for if in a ſetled and ſtanding water
we ſhould place any great Maſs that goeth not to the bottom,
ing it with a ſingle (Womans) Hair, we might carry it from place to
place without any oppoſition, and this whatever Figure it hath,
though that it poſſeſs a great ſpace of water, as for inſtance, a great
Beam would do moved ſide-ways. Perhaps ſome might oppoſe me
and ſay, that if the Reſiſtance of water againſt Diviſion, as I affirm,
were nothing; Ships ſhould not need ſuch a force of Oars and Sayles
for the moving of them from place to place in a tranquile Sea, or
ſtanding Lake. To him that ſhould make ſuch an objection, I would
reply, that the water contraſteth not againſt, nor ſimply reſiſteth
Diviſion, but a ſudden Diviſion, and with ſo much greater
tence, by how much greater the Velocity is: and the Cauſe of this
Reſiſtance depends not on Craſſitude, or any other thing that
lutely oppoſeth Diviſion, but becauſe that the parts of the water
divided, in giving way to that Solid that is moved in it, are
ſelves alſo neceſſitated locally to move, ſome to the one ſide, and ſome
to the other, and ſome downwards: and this muſt no leſs be done
by the waves before the Ship, or other Body ſwimming through the
water, than by the poſteriour and ſubſequent; becauſe, the Ship
proceeding forwards, to make it ſelf a way to receive its Bulk, it is
requiſite, that with the Prow it repulſe the adjacent parts of the
water, as well on one hand as on the other, and that it move them
as much tranſverſly, as is the half of the breadth of the Hull: and
the like removall muſt thoſe waves make, that ſucceeding the Poump
do run from the remoter parts of the Ship towards thoſe of the
middle, ſucceſſively to repleniſh the places, which the Ship in
vancing forwards, goeth, leaving vacant. Now, becauſe, all
tions are made in Time, and the longer in greater time: and it being
moreover true, that thoſe Bodies that in a certain time are moved
by a certain power ſuch a certain ſpace, ſhall not be moved the ſame
ſpace, and in a ſhorter Time, unleſs by a greater Power: therefore,
the broader Ships move ſlower than the narrower, being put on by
an equall Force: and the ſame Veſſel requires ſo much greater
force of Wind, or Oars, the faſter it is to move.
that it is nothing: becanſe, if it were of any ſenſible power, ſome
large Plate might be found or compounded of a Matter alike in
vity to the water, which not only would ſtay between the two
ters; but, moreover, ſhould not be able to deſcend or aſcend
out notable force. We may likewiſe collect the ſame from an
ther Experiment, ſhewing that the Water gives way alſo in the ſame
manner to tranſverſall Diviſion; for if in a ſetled and ſtanding water
we ſhould place any great Maſs that goeth not to the bottom,
ing it with a ſingle (Womans) Hair, we might carry it from place to
place without any oppoſition, and this whatever Figure it hath,
though that it poſſeſs a great ſpace of water, as for inſtance, a great
Beam would do moved ſide-ways. Perhaps ſome might oppoſe me
and ſay, that if the Reſiſtance of water againſt Diviſion, as I affirm,
were nothing; Ships ſhould not need ſuch a force of Oars and Sayles
for the moving of them from place to place in a tranquile Sea, or
ſtanding Lake. To him that ſhould make ſuch an objection, I would
reply, that the water contraſteth not againſt, nor ſimply reſiſteth
Diviſion, but a ſudden Diviſion, and with ſo much greater
tence, by how much greater the Velocity is: and the Cauſe of this
Reſiſtance depends not on Craſſitude, or any other thing that
lutely oppoſeth Diviſion, but becauſe that the parts of the water
divided, in giving way to that Solid that is moved in it, are
ſelves alſo neceſſitated locally to move, ſome to the one ſide, and ſome
to the other, and ſome downwards: and this muſt no leſs be done
by the waves before the Ship, or other Body ſwimming through the
water, than by the poſteriour and ſubſequent; becauſe, the Ship
proceeding forwards, to make it ſelf a way to receive its Bulk, it is
requiſite, that with the Prow it repulſe the adjacent parts of the
water, as well on one hand as on the other, and that it move them
as much tranſverſly, as is the half of the breadth of the Hull: and
the like removall muſt thoſe waves make, that ſucceeding the Poump
do run from the remoter parts of the Ship towards thoſe of the
middle, ſucceſſively to repleniſh the places, which the Ship in
vancing forwards, goeth, leaving vacant. Now, becauſe, all
tions are made in Time, and the longer in greater time: and it being
moreover true, that thoſe Bodies that in a certain time are moved
by a certain power ſuch a certain ſpace, ſhall not be moved the ſame
ſpace, and in a ſhorter Time, unleſs by a greater Power: therefore,
the broader Ships move ſlower than the narrower, being put on by
an equall Force: and the ſame Veſſel requires ſo much greater
force of Wind, or Oars, the faſter it is to move.