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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: 0.89.

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The machine reads it as

  1. Layine a Mortar 10 paso. in oicat i
  2. strike any Object above or belon the FIo-
  3. rizon. By F. HaleY.
  4. Ic Was Fortrerty ehie Opinion oF cHOLe CONCeEE
  5. ned in AerilleEY, That chere Was a certain, RC
  6. quisite ot Porder For each Cun; and in MOr
  7. cars, wrtiere the Distance was eo be raried, i
  8. must be doncbr sirins a greater or lesser Elera-
  9. cion co elie Peice. Buc non our larer Eixperience
  10. has taugheus; thatthe same thins may De miore
  11. certainly and readily perfortred by increasine
  12. and diministine che Ouantier of Poirder, Whe
  13. ther segard be had ro che Pxecurion ro be done.
  14. Or tothe Charse oF doins ic. For When Bombs
  15. are di chars ed wich great Elerations OF the MIOT.
  16. Fax, cher Fall 100 perpendicular, and bury chem
  17. Pelres t00 de ex in the Cround, 1o do all chat da
  18. maec cher mipte, il cher came more Oblique
  19. and broke upon or near the Surtace of the Farih.
  20. evtich is a ching acknowledeed by the Beheget
  21. in all Fotns, who unpare their Strcets c0 les
  22. che Bonibs buey chemlelres, and chereby Niste
  23. he Force oF cheir Splincers.
  24. A Sccond Convenience is, Fhar ac the ex.
  25. eream Flerarion, the Cunner is not obliged to
  26. be (0 Curious in the Direction ot his Peice, bu
  27. it will sussice to be within a DeBrCC OF ENO O)
  28. the Truch; Whereas in the orter Method o
  29. Slioorins le oughe ro be verr curious.
  30. Buc a Third, and no less considerable Ad.
  31. vantase is, in che lavins oF che Kinss Poder
  32. autich in (o ereat, and so numerous Discharges
  33. as We have larely seen, must necds 2IOUNL 10
  34. considerable Valuc.
  35. And Tor Sea Mortars, il is scarce practicable
  36. ochermise ro use chem, where che Agiration ol
  37. the sea continually changes the Direction ot th
  38. Mortar, and vould render the Shot verr uncer
  39. tain, vere it noc chat cher are placed abouc 4
  40. Deorees oF Eleration, where several Degrees a
  41. bore or under, makie very licle disserence in che
  42. ERect.
  43. In Numb. 179. ot chese transactions, F Consi
  44. dered and demonstrated all che Proposirions rela
  45. rins co che Mocion ot che Projectiles, and sare.
  46. Solucion co chis Problem, viz. Fo hit an Objec
  47. above or belor the FTorizont al Line, with the rrea
  48. test Certainty and least Force, 25 may bc scen in
  49. chat Transaction, P. 16, 57. Thac is, Thac ehic
  50. Horizontat Distance of the Object beine pur
  51. Charse requisice ro Mrike the Object wich the
  52. srearest Advantasc, vas chac wrhich wirt ar
  53. Flerarion et 4) Dgiccs, o, Cast ee so
  54. che toctu ee a
  55. bb- BB B. Wiene bsect Was aboe
  56. 43 Degreco slecent ace at
  57. Sum ot the LIrpochenulal Diltance ot the b.
  58. Fleiphe chereot abore che Cun; and in che o.
  59. cher cale, Wvhen che Obicet is below che Flori
  60. Zon, che Ditterence oE che Came, per 47. 1
  61. Fuclid.
  62. And Pihen Bewed hon 20 lind che Eleration
  63. prover Forche Cun so charged, viz. AstheH0.
  64. rizoncal Distance of che Object, ro che Sum oy
  65. Ditterence oF che Hyporhenulal Distance, anc
  66. Perpendicular Hciphe :: 50 Radius torhe Pan-
  67. sent oF che Eleration Couehe. Bur L WaS nOT ad
  68. charrime avare thacthe atorelaid Flerarion did
  69. Constantly bilect che Angle berween che Perpen-
  70. dicular and che Objeet; asis demonstrared trom
  71. the Difference and sum of che langene and se
  72. cane oF any Arcti, beins alvars cqual ro che
  73. Tansent and Cotangene ot the hale Compli
  74. mene chereot ro a Ouadrant.
  75. Hlavins discorered chis, L chinke norhines cam
  76. De more compendious, or bids fairer ro compleat
  77. the AE eF Cunnery, iE beins as eatie t0 Shoor
  78. rich a Morrar ar any Obicct on Demand, a5
  79. it ic vere on che Leret: Neicher is chere need
  80. ot any Compurarion, buc orly simply lazins
  81. cheCun ro pals, in che middle Line betreen
  82. che Lenich and che Object, and siving ic its due
  83. Charse. Nor isthere anr grearneed of Instru-
  84. mens Cor this purpose: For il che Muxule oF che
  85. Mortar beturnedrrulr Square ro theBore oFthe
  86. Peice, 25 ic ulnally is, or ouxhe r0 be, a piece
  87. oF L OOkins- Sla(s Plare applicd parallel ro che
  88. Muzzle, will by its Refection sire the true Po-
  89. sition OF che Peice; the Bombardeer having no
  90. more ro do, bur ro look perpendicularir donnon
  91. che Lookins-sla(s, alonest a (mail Thread wicte
  92. a Plumet, and ro raise or deprels che Lleration
  93. ot che Peice, till che Object appear reffected on
  94. che Pame Point oF the Speculum, on which che
  95. Plummer Falls; For che Angle ot Incidence and
  96. Reflection beins equal, in this cale a Line at
  97. Righe Angles, to the Speculum, a5 is the Aris
  98. oF the Chase of the Peice, will bisect che Angle
  99. betwcen che Perpendicular and che Object, ac
  100. cordins as our Propolition requires. Eo thar it
  101. onty remains by sood and ratid FXpCrimeNES 1O
  102. be aNured oF the Force oF Cun-ponrder. HOw
  103. to mate and conserre ic equal, and eo Know che
  104. effect thereot in cach Peice; chat is, how tat
  105. differins Charges will cast the lame Shoc our et
  106. ic; wtrich may most convenientr be engraven
  107. On the outside chereot, as a Randing Directior
  108. to all Crumners, who lhall trom thence tormara
  109. hare occation to ule rhat Peice: And eere this
  110. Macter vell ascerrained, ic mighe be worch ene
  111. Wvhile co make all Mortars of che like Diamerer.
  112. as near 25 may be alitre in lenorh oE Chale
  113. Neiehe, Chamiber, and all orher Circumitan
  114. CCS.
  115. inclined llanc 15, Wwhen the AxIs ot che leice
  116. ren Objeet wich ans torce sreacer chan whaetut
  117. eet trom che cum and che Perpendicular sices c0 rench ie victi ehe alorelaid Widale tile
  118. iocior
  119. et 2 se in tbe Ar.
  120. Proposition os Cener
  121. of Cumnerr, semine the Rule
  122. This Discorerr rhaE the VEmOR RansC On AM
  123. makes equal Angles ith che l’erpendicular AIIC
  124. the Object, compared wich wtrat Lhare demon-
  125. Atrated otthe Pame Problem in the atoresaid DTum-
  126. ber 279, does lead ro and discover rwo very tea
  127. de Theorems; the one ro sind the grearest Hori-
  128. Zoncal Ranse at 45 Degrees Eleration, by any
  129. Shror made uxon any inclined Plain, Wvich an)
  130. Flerarion oF The Peice Wharsoerer: And che o.
  131. b, and the Lerpendicular Hleighe = B, ElC
  132. Thetorizon, Wese Be eite Cats
  133. must be lesser, (0 25 r0 reach on che FTorizon, ac
  134. eles coina ihe lleracions piopei io leriue a 51
  135. Vbb - hB= B; chacis, in che one cale, the

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/806933011:0586?run=74