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: 0.86.
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The machine reads it as
- Lec et
- its Poines are suppoled ro be reterrea.
- LecD B bc called b, and alt rH
- ehe Equation will bcy y = b V V V, alu-
- = 2VV
- D A will be che Lanxent; 2 b) Kalt 1s 4 and 5.
- APDCaTS.
- 1682. there is an Omrectas Mechod For drawin
- Tangenes co all Curres, wilen Is ad poremene
- OF chis.
- erpendicular lo sonn Ladius, 25 C
- conches he Cirete buc i CC LbuC.
- ter NB, is pexpendicular eo P B, and eo Whiet
- elseas above:
- ut sivon, at 23 ch.
- ac, to any siven Cirole, at cb c.
- a
- Join che Poine a and che Cesre ot the Circle
- by drawins che Line a c. Then wich che Kallius
- ac on c, describe anocher Circle; crect a Perpen-
- dicur s t haet d
- deaW de, currins che former Circle in e: chen ac
- beine draun, is the Tangent requirecto
- IE noW D BC Greater chan 2 V, che Fangemrmus
- be dracon corvards B, it lesser, cowards F, il equ
- N. B. In che Acta Fruditorum For Decemiber.
- Ddemonstration.
- The Line en is a erue Tangent, because perpen.
- dicular ro the Radiusce, and ris perpendicularro
- TANOENT d a Circle, in Geometry, is a ce, because ee a is a Righe Angle; and ce a, is
- and wot.
- Righe Ansle, because ris equal 10 cb d, (WvtICM
- vas made (0 by Construction) and ris equal eo
- cb d, because che Triansle cb d, is equal co etue
- Lllangle aoc, 2s havins cro Sides and one Angle
- equal. Wheretore che Ansle eta, Lscesuat Lo The
- Riphe Line, as P R dramn wirtour che Circle,
- Ansle c b d, wotiie I3 a B R. F. D.
- Anocher very expedicious may os dramins a Tangene
- 0a Cirele, is ihis
- Let the Cirele BC R NC, the Point oF Contac
- NV, Transser the Radins N C, any ivhere trOm L
- donnvards into rhe Posrion R C, (O ThAE R N bC
- be equalro R C; then with R C on che CentreR.
- Arike a Semicircle, and a Rulerlaid trom C ihro R,
- will And che Poine Y; From Wrhence Y N beine
- drawn, will be a erue l’angene, because che Angle
- FNC bcins in a Semii circte, is a RixHE OHC.
- eROPO
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/806933011:0810?run=74