Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
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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
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Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. - . Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/806933011:0826?run=74