195161Century V III.
comprcſſion of parts then it hat of it ſelf, and therefore needeth more force
to be put in motion. For if a weighty Body be penſile, and hang but by a
thred, the percuſſion will make an impulſion very near as eaſily as iſ it were
already in motion.
to be put in motion. For if a weighty Body be penſile, and hang but by a
thred, the percuſſion will make an impulſion very near as eaſily as iſ it were
already in motion.
A Body-over-great or over-ſmall, will not be thrown ſo far as a Body of
11764. a middle ſize; ſo that (it ſeemeth) there muſt be a commenſuration or pro-
portion bet ween the Body moved, and the force, to make it move well. The
cauſe is, becauſe to the Impulſion there is requiſite the force of the Bo dy
that moveth, and the reſiſtance of the Body that is moved; and if the
Body be too great, it yieldeth too little; and if it be too ſmall, it reſiſterh
too little.
11764. a middle ſize; ſo that (it ſeemeth) there muſt be a commenſuration or pro-
portion bet ween the Body moved, and the force, to make it move well. The
cauſe is, becauſe to the Impulſion there is requiſite the force of the Bo dy
that moveth, and the reſiſtance of the Body that is moved; and if the
Body be too great, it yieldeth too little; and if it be too ſmall, it reſiſterh
too little.
It is common experience, that no weight will preſs or cut ſo ſtrong be-
22765. ing laid upon a Body, as falling or ſtrucken from above. It may be the Air
hath ſome part in furthering the percufſion: But the chief cauſe I take to be,
for that the parts of the Body moved, have by impulſion, or by the motion
of gravity continued, a compreſſion in them as well downwards, as they have
when they are thrown or ſhot through the Air ſorwards. I conceive alſo,
that the quick looſe of that motion preventeth the reſiſtance of the Body be-
low; and priority of the force (always) is of great efficacy, as appeareth in
infinite inſtances.
22765. ing laid upon a Body, as falling or ſtrucken from above. It may be the Air
hath ſome part in furthering the percufſion: But the chief cauſe I take to be,
for that the parts of the Body moved, have by impulſion, or by the motion
of gravity continued, a compreſſion in them as well downwards, as they have
when they are thrown or ſhot through the Air ſorwards. I conceive alſo,
that the quick looſe of that motion preventeth the reſiſtance of the Body be-
low; and priority of the force (always) is of great efficacy, as appeareth in
infinite inſtances.
TIckling is moſt in the Soles of the Feet, and under the Arm-holes, and
33766. on the Sides. The cauſe is, the thinneſs of the Skin in thoſe parts, joyned
44Experiment
Solitary,
touching
Titillation. with the rareneſs of being touched there; for all Tickling is a light motion
of the Spirits, which the thinneſs of the Skin, and ſuddenneſs and rareneſs
of touch do further: For we ſee a Feather or a Ruſh drawn along the Lip
or Cheek, doth tickle; whereas a thing more obtuſe, or a touch more
hard, doth not. And for ſuddenneſs, we ſee no man can ticklehimſelf: We
ſee alſo, that the Palm of the Hand, though it hath as thin a Skin as the other
parts mentioned, yet is not tickliſh, becauſe it is accuſtomed to betouched.
Tickling alſo cauſeth Laughter. The cauſe may be the emiſſion of the Spirits,
and ſo of the Breath, by a flight from Titillation; for upon Tickling, we
ſee there is ever a ſtarting or ſhrinking away of the part to avoid it; and
we ſee alſo, that if you tickle the Noſtrils with a Feather or Straw, it
procureth Sneezing, which is a ſudden emiſſion of the Spirits, that do
like wiſe expel the moiſture. And Tickling is ever painſul, and not well
endured.
33766. on the Sides. The cauſe is, the thinneſs of the Skin in thoſe parts, joyned
44Experiment
Solitary,
touching
Titillation. with the rareneſs of being touched there; for all Tickling is a light motion
of the Spirits, which the thinneſs of the Skin, and ſuddenneſs and rareneſs
of touch do further: For we ſee a Feather or a Ruſh drawn along the Lip
or Cheek, doth tickle; whereas a thing more obtuſe, or a touch more
hard, doth not. And for ſuddenneſs, we ſee no man can ticklehimſelf: We
ſee alſo, that the Palm of the Hand, though it hath as thin a Skin as the other
parts mentioned, yet is not tickliſh, becauſe it is accuſtomed to betouched.
Tickling alſo cauſeth Laughter. The cauſe may be the emiſſion of the Spirits,
and ſo of the Breath, by a flight from Titillation; for upon Tickling, we
ſee there is ever a ſtarting or ſhrinking away of the part to avoid it; and
we ſee alſo, that if you tickle the Noſtrils with a Feather or Straw, it
procureth Sneezing, which is a ſudden emiſſion of the Spirits, that do
like wiſe expel the moiſture. And Tickling is ever painſul, and not well
endured.
IT is ſtrange, that the River of Nilus overflowing, as it doth the Countrey
55767. of Egypt, there ſhould be nevertheleſs little or no Rain in that Countrey.
66Experiment
Solitary,
touching the
Scarcity of
Rain in
Egypt. The cauſe muſt be, either in the Nature of the Water, or in the Nature
of the Air, or of both. In the Water, it may be aſcribed either tinto
the long race of the Water; for ſwiſt-running Waters vapor not ſo much
as ſtanding Waters, or elſe to the concoction of the Water; for Waters well
concocted, vapor not ſo much as Waters raw, no more then Waters upon
the fire do vapor ſo much, after ſome time of boyling, as at the firſt.
And it is true, that the Water of Nilus is ſweeter then other Waters in taſte;
and it is excellent good for the Stone, and Hypochondriacal Melancholy,
which ſheweth it is lenifying; and it runneth through a Countrey of a
hot Climate, and flat, without ſhade either of Woods or Hills, whereby
the Sun muſt needs have great power to concoct ir. As for the Air (from
whence I conceive this want of Showers cometh chiefly) the cauſe muſt
55767. of Egypt, there ſhould be nevertheleſs little or no Rain in that Countrey.
66Experiment
Solitary,
touching the
Scarcity of
Rain in
Egypt. The cauſe muſt be, either in the Nature of the Water, or in the Nature
of the Air, or of both. In the Water, it may be aſcribed either tinto
the long race of the Water; for ſwiſt-running Waters vapor not ſo much
as ſtanding Waters, or elſe to the concoction of the Water; for Waters well
concocted, vapor not ſo much as Waters raw, no more then Waters upon
the fire do vapor ſo much, after ſome time of boyling, as at the firſt.
And it is true, that the Water of Nilus is ſweeter then other Waters in taſte;
and it is excellent good for the Stone, and Hypochondriacal Melancholy,
which ſheweth it is lenifying; and it runneth through a Countrey of a
hot Climate, and flat, without ſhade either of Woods or Hills, whereby
the Sun muſt needs have great power to concoct ir. As for the Air (from
whence I conceive this want of Showers cometh chiefly) the cauſe muſt