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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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Ou learned P.ArenOmmer, HEr. Flamstead, PS. CarrY a Pon eist, 25 here on che Surtaceio carr)
Ile cound br abore eo Cobserrations ol the FTigh.
maters at Fomermhars and Greenmich, Fhac ihe srea
celt Ditrerences Betwveen the Noons erue Southins
and che FTich-maters, vere not, 25 Philips Caid, a
Full, Nem, and duarter Moons, buc the greates
near che Neaps, andehe leost neas hebisbest sprins
tides.
FHere is an Hypochesis 10 Tolre the Mori
on ol che Fides, mentioned in Philosoph. Transact
N. 16. From chac learned Mathematician DF. W al
lis: In wohich, he suxposes che Farch and Moon, EC
inore round the sun, in a Circle, or Fillipse, deleri
bed by cheir common Centre oF Gravity. Bur
chis Flypochelis places ehe highese Annual Tides nOr
riear che Lquinozes, bue about Candlemass and AI-
bollandcide: chat is, in che beginnins of Februarz
and November. BUE L coud never And chat rhC
Thins vas C0 in Fact; bur that On ThC CONFTari
ther are alrars greatest at or near the Equinoxes
as hath been generalsy observed: I MaII Theretore
reter the R eader to the Insenious Lyporhesis it Sel
wirhoue sivins als paccelar ACCOUE oE i
here.
1
oC che Diltance.
2 hundred and a quarter.
And in che lame Proportion does che Velocities
OFche Fall ot Bodies decreale: For Whereas on che
Surtace oF the Farch, all chings tall 16 FoOr in 2
Second, at one Semi diameter above; chis Fall is
but 4 FoOc; and ac 3 Semi-diameters, or 4 trom
thc Cenrer, it is buc = = oF the FaIl ac che Surtace
or buc one Poor in a Second; and at orearer Di
stances both WVeighe and Fall become rery liccle
bui yet, ac all sivem Distances, is Aill Comerhins,
choithe BRect become insensible.
AErhe Distance oF the MoOn, (Wwhich suppose
2o be60 Semi diameters ol the F APtH) 3600 pounds
veich bur one Pound, and the FaIl of Bodies is
buT 3 35 OF a FOOE in a SccOnd, Or 16 FOOL in 3
Minure: Thac is, a Body (0 Far ost descends in 
Minure no more chan che lameat chedurtace oF che
Farth rould do in a Second of Pime.
And as Was said Betore, the lame torce decrea
sins atter the Came manner, is evidently found in
the Sun, Moon, and aIl che Planets; bue more e
(pecialsy in the sun, whose Force is prodicious, be
comins sensible even at che immense distance ot
Saturn. This sires room 10 suspeet chac the force
oF Grarier is in the Celestial Globes proporcional
to the Ouantier of Macrer in each oF them: And
the sun beins at Jeast 10000 rimes (For Instance
tho heistar bieger) a5 bis 25 the Barch, its Ora-
vitation or actractins force, is found eo be ac least
10000 rimes a5 muct a5 chac oC ihe Farrh, actins
on Bodies at che Pame Distances.
Whence allo, all ihe TuEPEIZIIS Phenomena OL
ehe Flux and R eAuX OF the Sea, He Mews in MMC
like manner to procecd tromthe Came Principle.
IF che Farrh vere alone, that IS EO CaY, nOt aF.
sected by che Actions ot che sun and Moon, ic is
noc co be doubred, buc che Ocean beins equally
pressed by che force of Grarier torvards che C en-
ter, ould continue in a pertect Scagnacion, al.
rays ac che Came heighe, vithout ever cbbing or
Rovins; bur ir beino by him demenstraced, Thac
The sun and Mcon hare a like Principse of Gravi
carion corvards their Centers, and rhac the Karrh is
richin ehe Actirier ot cheie atcractions, ic wil
Plainly follon, That che Equalier ot che Prelture
et Grariey cowards che Cenrer ill cherebr be di
Aurbed; and cho che (mallness oF chele FOrceS
in respect of che Craritation torards HE ParrHS
Cencer; rendet them altogether imperceptible by
any Experiments we can devise, vec cheOceanbe-
ins Duid and rieldins ro che least Force, by its ri
sins. Mes here ir is leat prekt, and Where is 15
more prest by us sinkins.
Trars. N. L43. sires us a nevs andniore correct Tide-
Table, (rhich he allo nou publistres ererr ear
imPTOrInS WHaE MII. PBMIPS tad BCSBI VVOOICI
vins, chac ihe Tides did nor usualy hold our (0
IOnGaSMII. Phili pss Calcularion made chem ro de
The true Theory of the Tides extracted from that ac
mirable Freatise of NIr. TIdac NeWIOn, Intitule
Philo(ophix Nacuralis Principia Mathemarica
that Fxcellent Mathematician, Captat
Llalley.
The Principle upon which chis Auchor procceds
20 explain moll o che sreat and surprisins APVCaI-
ances ot LNacusc, l no orher chan thac ot Graviis.
Wvhereby, in che Carth all Bodies hare a Tenderes
cowards as Centre; as is most evident: And trom
indonbred Arsuments ies proved, Thac chere is
Tuch a Gravirarion towards the Cenere oF ihe Sun
Moon, and aIl EhC PLaHCTS.
From chis Principle, as a necessary Consequence
Follonsthe spHecal Fioure oF che Parrh and Sea,
and ot all ché ortier Celestial Bodies; and io che
renaCIE) and SrmnelS oF che Colid ParES, Suppor the
Inequadties ofche Land aborethe L evel; Vet the
Fluas prestine equally and easily rieldins 1o cach
octer, ab loon restore the s quilibrium, iE disturbed,
and namtain che exact Figure ol the Globe.
Now chis force of the Descent ot Bodies, corvards
the Ceer, is nor in all places alikre, buc is Aill lels
arid less, as the Distance From the Center encreases:
And in che Caid B00lC ic is demonstrared, Thatchis
Force decreales as the Square of the Distance in-
creales; thac is, the weishe ot Bodies, and the
Force ot. Their Fall is lels, M Parrs more remored
Nor it, e lupose neoce ee Moons 11C
caelonto decreale as ihie square et che Dultance
Fronrues Cemmes Mcreales, (as in che Carth, and 0.
Ces Cerctus Boces) WeMaitind, chat Where the
crom che Cenere, in che Proporrion o che Square
Moon I3 Detpehatculatis elinee aboreet delonc
Forizon, cither in Zenith or Nadir, there thetorce
et lariey is mos ot al diministed, and conse
As Cor Fxarripte.
A Ton weishe on the Surtace of ihe FartH, il it
trere raised ro che heighe ot 10r0 Miles, Wrhich let
be the Semi-diameter of che Farch, ould weisti
DuE a quarFeF OF 2 FOn, Or 500 l. Wveistc. IF 10
12000 NTiles, Or 3 Semi-diameters From the Sur-
Face; thac is, 4 trom the Center, it vould weish
Dut r Sixteenth part of the Weighe on the Surtace,
or a Flundred and a quarter: S0 char ic vould bc
lels cdat edele cl ccati lccua decenatus
Eivel, by che comins in ofche Wacer From chole
Parts wrhere the Presture is oreacest, viz. in thole
Places ehere the Moon is near the FTorizon; but
chac chis Mta) be the berter understood, tvas
thonGHE MCCH 1o add che tollowins Scheme,
Where M is ThC NNBO, P the FartH, C its Center
Zche Pale oete che Moon is in che Zenich, 1
iotere vn vie Naci
25 calie Cor chedirencitiot a Maltat ac  B. ld
Non