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Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -

Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.91.

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  1. Lex the Concaritr oF the Glass DC a B C, and its
  2. IuS) and is vet lels ac remorer distances trom es
  3. Farch: Bur ac equal distances, tis alvars che lame,
  4. hecaule all Bodies, heary or Lishe, sreat or (maII,
  5. absractino From che Resistence ot che Medium, arc
  6. equally accelerared in cheir descent.
  7. Vis Centripetae Ouantitas Motrix, is ils Meature
  8. proporrionable to ihe Morion Which ic generates in
  9. a siventime: Asthe Wciphris greater in a src2
  10. ter Body, and lels in a lester; and in che lame Body
  11. Sions. Phis Force is the Cravity or l’endener ro
  12. Wrards che Center oE the Whole Body, and is aet
  13. one wich ies Weishe, beins alvars dilcorerable by
  14. Iome equal and conrrary Force hindring rhe delcenr
  15. Aris dc: Ler f5 be a Ray os Lighe falline on the oF che ticarr BodY.
  16. Ola(S, Parallel 10 che AXIS dc; and let d be the
  17. Center oF the Ark a bc. This Ray f5, atter ii
  18. trath passed che Class ac ies Fmersion ac s, Will nOt
  19. proceed directlr co h, bur bc retracted trom che
  20. Perpendicular d 8, and will become che Ray s k
  21. Draw chen directiy ek, (0 a5 char ic may crols che
  22. Axis in c. The Poinee (0 Found, NIr. Molyneux
  23. Calls ehe Virrual Focus, Or Point os Diversence. P. 56.
  24. Dioper. Nor.
  25. VIS, Or Force; 25 vis C armis, By FOrCC D
  26. ArmS. And ehis Vis is Firetold, Vis impulsiva ab
  27. lativa, expulsiva, curbativa, and inquierativa: Vis
  28. ablariva, is the cakins away ot moreable chinss:
  29. Andhence accrues an Actim, Duare vi (5 armis,
  30. _c. Vis compulsiva is, when any onc is cast out
  31. ot his Possettion. by Lorce and Arms. Vis turba-
  32. riva, is when ans one is dicturbed in his Posesion,
  33. a5 when cuo Arire ro Possels che lameching. Vis
  34. inquierativa, is when one Man will noc sutter an-
  35. other quietly ro enjor his Rishr, or todo anr chins
  36. in hisoun Bounds or Limits. And From all chele
  37. lome Porr oF Action ill arile.
  38. VIS Centrisuza, is the Force by which any Bod)
  39. revolrins round anocher, endearours ro Ay oAtrom
  40. che Axis of che Morion, in a TanBenE e0 chac
  41. Curre.
  42. TheCentritugal Force is alvars proporrionalro
  43. the Periphery wwtich any Body describes in ies
  44. Morion round the AXis oF ies Morion, by chC srs
  45. TheOrem OF MIE. IIusens de vi Centrifusa.
  46. VIS Centripeta, i5 thac by wrhich any B0d
  47. (trom whac Cause Coerer) cends towards any Poine
  48. aS HO IIS Center.
  49. The Vires Centripetae, are alvays as the Squares
  50. of the Velocicies dirided by che Radii ot che CII-
  51. cles described round the C enter.
  52. And also Reciprocally, a5 the Squares OF thC
  53. Periodical Rerolurions dirided by the Radii.
  54. Wrheretore, is che Periodical Times be equal
  55. both che Ceneripetal Forces and Velocicies, will
  56. beasthe Radii, (3 vice versi.
  57. EEthe Squares ot the Times oF che Periodical
  58. Rerolurions are as the Radii, the Centripetal FOE-
  59. ces are equal; and che Velociries in hals rhe Rario
  60. OF che Radii; and vice versa.
  61. HEche Squares oF the Periodical Fimes are a5 the
  62. Squares oF the Radii, che Centripetal Lorces are
  63. Reciprocally a5 che Radii, and che Velociries equal,
  64. and vice versd.
  65. H che Squares oF the Fimes of the Periodicat
  66. Rerolutions are as the Cubes of rhe Radii, OF Di
  67. stances from the Center, (Wtich is the case oF al
  68. the Planets movins round che Sun, and oF thc
  69. MoonS, OF Secondarr Planets movins round The Pri
  70. maxy) ihen the Centripetal Forces (Or Grariey ot
  71. Bodies) are a5 the Squares of che R adii or Distan
  72. ces tromthe Cenrer, (a5 we find ic ro be) and che
  73. Velociries are in halEche Racio oF the Radii, and
  74. vice versa. Sec Mr. Nentons Princip. Phil. Ma-
  75. themat. P. 35,
  76. I che Centripetal Force oF any Dody morine
  77. round anocher, be a5 the Distance; thAE BOd)
  78. moves in an Ellipsis, havins its Center inthe Cen-
  79. ter of chacForce; er perhaps, in a Circle equal 10
  80. Fhar FIIIpSIS. Idem
  81. OF ehis kind is Gravity, by wtich Bodies tend
  82. ASeo Which, Gallilaus hathehis Theorem, That
  83. tomards che Centex oF che Parth: And such is che it such an Fllipsis, its Foci becomins infinitely Di-
  84. Magnetical Force by which Tron rends cormardsche Aant, Mould chanse into a Parabola; che B0dy
  85. Center OE the Magnet: And oF chis kind is chat vould move in the Curre ot such a Parabola
  86. Force or Porver whaterer it be, by wrhich all che l and che Vis Centripeta respectins no a C enter in-
  87. Planersare continually drann from a Rectilineal ( sinicelr Distant, ould gron Lquable. Fo wtict
  88. Morion, and forced rorerolve in Curres.
  89. The Ouantiey of this Cencripetal Force, is ot
  90. chree kinds: Absoluta, Acceleratrix, and Motrix.
  91. The Absolute Ouantity oF it, is its Measure, Brea
  92. ter or lels, according cothe FfficacY oF the C’ause
  93. chac produces ic; and wwtich exerts ic selF on aII
  94. Bodies in che Regions round about: AS the Mag
  95. nerical Vircue in some Magners is greacex chan in
  96. ochers, cho oFche lame Dimensions.
  97. Vs Cencripetae Ouantita Acceleratrix, is its Mea
  98. sure proporrionable coche Velocier which it pro-
  99. duces in 2 SIrel MMC. Thus cheporver ot 2
  100. MIr: Nemron adds, That it a Parabolick Section ot
  101. Loadstone is grearer at a le(s, and leser aF a gFC2-
  102. a Cone, by che Inclination of iis Plane co the Side
  103. ot che Cone, Mould be curned inro an FEyperbola
  104. che Body ould continue romore in its Perimeter
  105. and ies Centripetal Force, vould be chansed into L
  106. Centrifueal one.
  107. IF any Body Frcels se LO a CenCeF, 25
  108. in che case ol the Planers round the Sun, ils C en
  109. cripetal and Cenrritus al Forces must be equal
  110. communicared ro, 2nd exerciled upon any B0d)
  111. TeF AHILAHICE NOIH CIIC SIOHC. GTaVIEY IS GECATeE
  112. in order to chanse irs present Scare, cicher ot Rest,
  113. OrMocion, uniformir Fervard in a rishur Line. Newt
  114. Princip. Mat. This Force consiltsencirelr in Action,
  115. and atcer thar ceases, cannor remain in any Body
  116. For cheBody continues in irs neu Stare, Whechet
  117. in Vallers, and less on ihe Lops oF hish Moun- oE Mocion ox Rest, by che vis Tuertia OnIY.
  118. cains, (ad is plaim trom che Fixperimenrs ot Pendu-
  119. it is grcacer near the Farth, and lels in remore Re.
  120. VTRTVAL FOcuS, Or Point of Diversence In
  121. Concare Cla (S, is the Point e in che Tollonins
  122. BUTC.
  123. Vis impressa an lmxulle, ebile, et action

Cite

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/806933011:0897?run=74