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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
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late it selt compressinq che internat CIII such  a di L
ill che Flasticier oF ete included AIr, be equal +o (f0: Bur f m: ai:: 25 che Velocits oF ASCenE in
che coplessire force Wichour, or wtuchis helalle one lube, is co rhe Velociry ot Descent in cheo
chins coche wrhole Wreishe oF che incumbene AIt:
and it L be closed, the Blasticier of che included as che Warer in acis ro che Warer in che parr ot
cher; and che Oritice ad: i5r0 che Oritice f8:
Air wrill sill be equal o the WeIghE Ot thCexternal the Pipe fHI: (For Cplinders ot equal Fleighc, are
incumbent Air, For che Elasticies mone be in che as their Bales.) Wheretore che Velocies ot che
Jeast alcered br che Oritice beins Aopped; there.
tore che Proposirion isclear.
Oritice L intists upOn, l Cquasy Prest Wch cheC
THeK PaTES OF the Surtace A B, LCCIMB CNC CTaHICUS
OFche Air in D and FI is equal, by the las PrOpOS
tion, eo the weighr of the excernal incumbene Air
Chere it must be obserrd, chac we suppole che Vel
Tel eo be lustain d some orher way) and consequent.
ly by Prop. 1. c es  a asceridr
descend. d L 
ACcendins Wacer in the Pipe f HI, will be torhe
Velociry ot the Descending WVater in the Pipe a0
:: 25 the Wacer in the Pipe a c: is cothe Wacer ir
the Pipe fHI. Thac is, the Velociries oftheascend
ins and descendine POrrions OF WVaFerS arC reCIpTO-
calls proporrional; and consequenty cheir MO
ments must be equal: And bCInG CONFPAEY OnC LO
anocher, ther vill equi-ballance cach other, and
consequenely makre rhie Water Hand in boch Legs
at one and che lame height.
The Physical Reason oF Wrhich Phaenomenon is,
ThaEnO mOre Water presses on the Orisice C, than
Whac is conrained in che Cylinder OC, perpendicu
lariy incumbene on the Orifice (the rest beins su
Cained by che Borcom of the larger Pipe, wrtrich
extends berond che Orifice c all round ic: Now
the Cxlinder oc beins equal every waz 10f 5, che
Wacer in each will BC of the Pame heighr.
From hence alIo, by che by, may che ReaION
appear, Wohy Wacer or any ortier Fluid Rorving our
ot al arser Pipe or Canal into a penderer, moves
chere ich a prearer Celerier
Fence allo in an Animat Body, it che Ramitica
demonstratesthe Reason ihy Fluids Leep at thesame hare che Sum oF all cheir Oritices, or racher ot cheir
Wxhich is connected wih the mote llendet One
mnkBC at c.
Plain.
Fransverle Section ot che AOrta, Or Great ArterY
che Velocier ot the Mocion oF che Blood in chem
will be, lels chan in the Rorta, bue it the sum be
less, the Morion oF the Blood chere will be lvitter
chan in rhe AOrTa.
FYDROTTCKS, or Medicines chac provote
Sivearins, are chole which by termentins and ac
cenvatins the (naII ParES, penerrate into the clo.
Pest Pores oF che Blood, diride irs Parricles, raritie
them, and curn them into a kind of Vapour, which
rogether with whaterer cher meet, and ean carry
wichchem, cher drire out inco che Surtace ot che
Body; and chere beins condens d into an insensible
Liquor, cher appear in the Form ot SWeat. Blan-
chard.
FTYEMTALSOLSTTEF. Sec Solstice.
FYOTEA is Health, wtich consists in a 800d
Temperature, and rishr contirmation oF Parts.
Hlcalch is a Disposition oF ChC ParIS OF an FIU-
mane BodY, Ar For the Pertormance oF che Actions
oFchat Body.
Siens ot Fealthare threc, due Actions, suirable
Oualicies, and when chines caken in and let outare
proportionable. Blanchard.
AXOTEINA, iS ThaE ParE OF Physick whict
ceaches the may oF prelerring Ilealth: Some di-
vide iE intO THrCC PaTES.
Prophylacticle Wohich eakes notice oF Future im
Smcericiet vohict preserves presene Hleath:
Atid.
nalepricke, mhiet recoers che Sick. Blana
More comprest than ehe internas, chat it Wvill eL. s cer mnf g, Mall be equal t0 che empeY BArE
times as chere be an Figuilibrium; but on che COn= Bur when Cylinders are equal, and are oE dit
trary, it che internal be more comprest chan cheex- ferent Bales and Hleighes, cheir Bases and (leighrs
ternal, then will ehis dilate ir selt, compressins che must be reciprocally proportional: Lheretore here
Ocher, rill che Lguilibrium be again restord, i. c. fm: a i:: che Oritice à d: to che Oritice m n O
PROP. VI
Dhe Orifice B, os the Tube D, or ihe Vesset FI, (sit
vith sir of the same Nacure rith the Exter
Air) be put into the surface AB of a V ess
Mercury, that Fluid will neither rise, nor be cp
Demonstration.
FOrC, that part oFthe Surtace A B, Wtrich et
The Ingenious AIr. John Keil, ehus Mathemarically tions OF che Arteries, (or the Capillary Arteries
sions.
tcishe in Canals, or Pipes of disserent Dimen. crantrerse Sections, sreatex chan che Area OF che
Let there bealareer Dixe ot Cplinder, a5 abc
Wacex being pur in ac cicher Oritice, willkee
che Came Level in both Pipes, or iviil Aand ac che
Came heighe in borh Legs: S0 hac che Surtace c
For it by any Force che Water in che larSer parE
adbc, Mould be impelled donn, suppolero LI
che Wacer a d, and s f, Mall be in rhe lame minene Dileales
hata
it must rise (o much hipher in che lesser Leg oF the
dyohom tuprole comn; chacche Cstindet ot H2
lChOCkdCt