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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
# Folio - , page id 806933011:0405
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XF
licele resemble a Ship, he Arted a Wooden. Dech,
vich a Mast, (90. c0ic; and chen he sunte it by
Ballasting ic wich Sand, and made ic deam as inuch
NVacer (as the Seamen (ay) as he chouehe tic: Then
did heby accurare Marts distinsui how hish che
Wacer inche containins Clals did rile on che Sides
ot che Vessel: This done, he rook che Tumbler
Out, wiped ic der, and weished ic; and chen fourd
a Ouancies ot Wacer exactls equalro chat weishic;
Which Wacer irtien pur inco he broad Cilals, rose
up co chose Marhs exactly, Which he had betore
observed che Tumblet had Faised rhe Water 10.
PARABOX IV.
7)at 10 Account for the raisinq of Water in Pumps
_cC. there needs onty the competent Weicht ef an
External Fluid.
Take up in a Aender Class- Tube, abour an Ineh
in heieht oF any deepir ringed Liquor (such a5 an
Intuson of Brazil-wood and Cocheniel, 69c. ii
WVacer (For else che Phaenomena illnoc be conspi
cuous) and chen soppins che upper end wich rour
Finger, place ir in a Class Vessel Alled wich che lame
Tinged Liguor, and chac (0 low, thac che upper
Surtace oF che Liquor in che Tube, be at least an
Inch below chac ot che Liguor of the Vesel: Then
Pour on Oyl oF Turpencine For abouc 3 Or 4 Tnches
heiohe abore the WVacer in the Vessel; and vou
ill sec, on the remoral OF VouF Finger From che
Top oF che Tube, char the Tinsed Warer will be
raised ox impelled upward, near ashigh asthe Sur-
Face of the Oil.
Non here no abhorrence of a Vacuum can be
precended, as the Cause ot che alcene oF che WVAFCT.
For che Tube is Full oF Air, and che External Aie
hach a tree ingrels inco ic: Buc che plain Reason id
This, Thac chere beins a grearer Presture made by
ehe Oil and WVacer rogether, on chelmaginary Plane
char passes by che lorver Orifice of the Tube wirh-
oux the Tube, chan wichin ic, (For wirhinchere is a Cufticient Onantier of WVater well ringed wich Bea
Presture only oF an Tnch oF Warer, and oF a Co- Zil, (3c. Then tr 10 ic a Cover OE C orki, chro
Iun OF Air) che ParrS OF the Wacer ar the BOrtOm
irtich bore wich a rec. hOE Caper LETOH, sever aI
ofthe Pipe, must be chrust upvards into ic, rill ir round Floles, ro admit Tubes of different Bipnesses
rise so hioh, as eo sain an Equilibrium wich che DxSires. L et chese Tubes sand nearir upriphr in
rest.
che Vesset, and reach all wich cheir lorver Oritices
And rhis ill CasilY ACCOHNE FOr FHC A(CENEOF che below he Surtace OEthe Water: Then ac an LOle
Nracer in the Pumps.
purposely letrtorie, pour insenely by a Gla(S Fun-
Wrhere the external Rix prestins erery where on nel, 2 800d Ouanciry oF Oil oF Furpentine; and
the Surtace ot the Water in the Well, buE nOc on  rou will plaintr sec chetinged Waterrile equally,
chac wichin che Pump. Decause ris raten oR by j (i. e. to equalheishes) in allihe Tubes, tho ot very
che Sucker; Wwhich is cheretore wich Potr Leather, disterent Bores and Si2es.
C8c. made stanch on purpole.
On cheraisins cheretore of the Sucker, che W a-
rex must follon ic (it the Pump be g00d) because
che eishe oF che whole Armosphere presses on che
Surface oF the Wacer in che WVelI, (bur nOT ac aII
richin che Body oF che Pump) and (0 raises or FOr-
ces ic up into che Carier oF che Pump. And chac
chis Presture oF che Air is che C ause oF the WVarerS
rile, is more chan probable, because no Pump can
erer raise Wacer abore 33 or 34 Foor; Which is
Found ro be exactly agrecable ro the diserenE G,Fa-
viries oF Rir and Wacer, allowine For che grea
heiphe oC che Armosphere: Of which more else
here.
The ReaCon oE wtich will chus appear.
LCC F F represent the Surlace oE che NV ater it
che Vessel; when che Oyl cotries co be poured ux-
on ic, noc beins oFa Nature se co minele Or incor-
porare wich ic, ir will svim ac che Pop, and wictr
an equal Grariey, prels uxon all Parrs ot che Sur-
Face oF che Wacer, and consequently will raise oy
prelsup the Wacer in che Tubes, eill ic comeneAF
ro the lame heistr in them, 25 che Oil is ac in the
Class, 20 brins che Liquors r0 a Ballance. BuF
chere isno realon why che Water Bould be railed
to a greacer heighe in any one Tabe, than in ano-
cher: Because che Oil presses uniformly and equa
IV on all parrs of the Surtace of the W’acer; and
consequenly can Force ux the Wacer no histier in
ie taralett cabe crae ipn se preatet; oi tronlis
A R A
That ehe Pressure os an External Fluid, is able eo
Kecep an Heteroseneous Liquor suspended at the same
heistot in severat Pipes, thó they be os different
Diameters.
Fate d pretty wide mouchd G’ als, (25 in Fiz. 5
annex d) ot a convenient depth, and puE inTO IL a