Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
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The machine reads it as
- N FI
- + L L.
- 3. Ic doth nor ver appear by. Obserrarions, Or Frearens, on which ther are supposed to rurn
- Wrhether Mercury revoire round his AXIS, Or
- nor and, consequens Whac che Lensih ot his
- Daris; buc tis probable he hach such a Morion
- 25 Wvell 25 the octier Planeis, bur his Tear is
- scarce equal t0 a Ouarter oE OurS. WVhatVa
- rietr oF Scalons and Weather Mercury is subject
- to, is uncertain; because the Inclinarion ot his
- Axis, on which he rerolres abour himselt, 10
- ihe Plane oE the Orbic, Which he describes roune
- the Sun, IS UnkNOWH.
- 4. 20 an PyC placed in Mercury, and lootins
- towards the Sum, the Solar Spors (iF aE any
- time such chere arc) will appear to craverse his
- Disk Lometimes in a Righe Linc, trom FaA 10
- Nest; and Cometimes their Path will appear
- Elliprical, bendins sometimes one ay, anc
- Cometimes anocher. And the irhole Varierr ot
- chis Appearance will be absolved in a YCar
- Fime, in Which the Path Of che Solar SpOES Ni
- appear ro betrvice Rectilinear: Bur indced rho
- Pach oF chele Spors ill be almost continual
- ly in a Rishe Line, Decause Mercurysnerex muc
- declines From che Plane oF the SunSEqUaTOF.
- 5. Theother Fire Planers beins abore Met
- cury, cheir Phaenomena rill De much the same 2
- 20 an Fre ac the Farth: So thar Venus and ous
- Farch, wvhen in Opposition to the Sun, i
- ine wich a full Orb, and consequener aFOrC
- a Grear Lish to this Planet at NigHE. BUE the
- Superior Planets ill nor attord him (o much
- Listc a5 Ther do us.
- 6. Jhedus al he other Planets Llalls, and
- the Phaenomena Ot Comets are toune the same
- round.
- On the Terrestrial Globes there are Wsua lIY 36
- Meridians dran, one chroush ererr TenthDe-
- OTCC OE the EGLaTOE, Ox throngh every TentM
- Desree Ot Longitude.
- The Dses os chis Circle, ate,
- T. To set the Globesro any parricular Lacitude.
- 2. FoTew the Suns Or a Scars Declination.
- Righe Ascension, Or Greacest Alricude, Cdc.
- PROBE EM.
- F0 find the Suns Meridian Alricude or Deprecion
- at Nicht by the Globes.
- Brine che Suns Place to the Meridian abore
- the Florizon, For his Noon-Alticude; wetrich Will
- ew theDegrees of ir, counced from ehe FTori
- ZOn. FOF his Midniche Depresson Below Ehe
- Norrh Poine oF che Forizon, vou must bririe
- the opposire Point to che suns present Place,
- as belore to the Meridian; and che Desrees
- chere intercepred beroeen chac Poine and he
- FTorizon, arc his Midnighe Depression.
- MERIDIAN Linc, on a DYal, is 2 RighELine
- arisins trom che incersection os che eridian o
- the Place wwith the Plane of che DYaI. THis is
- che Line ot 12 a Clock, and trom heucerhie D;
- visien oF che Four. Lines begitis.
- Fo diam a Frue Meridian Lihe upon at
- Forizontal Plane
- Firs, Cet a plain chick Board, ot 2 Foer
- Nar in Mercury, and atter the lame manner, and Square, or more; chen upon one ot the ldse.
- ill appear as thes uto us on the FarrM.
- OF COrneIS, 25 near a5 may bC, tasten a Aron
- MERIDIAN, is a great Circle passins chrough Tron Pin, about 10 OF +F Tuches lons, and makie
- the Poles of the Tona, and Boch Zehith and Na-
- dir, crossech che Fquinoctial ac Righe Angles.
- and dirideth the Sphere inco ro equat PaFES,
- one Last, che ocher West; and has iis Poles in
- the Past and W est Poines oF che LTorizon. Tis
- Calld Meridian, becaule wrten the Sum cometh
- to the South Parr of chis Circle, ris then Meri
- dies, Mid day, or Fich noon; and then the Sun
- hath his sreacest Alcicude For thacDay, wrhich
- cherefore is called che Meridian Alritude.
- Thele Meridians are rarious, and change ac
- cording co the L ongitudes oF Places; Cotharther
- ic (0 Fast, chac ic Will nor Make, or rield in che
- least: Je marters nor whecherir be perpendicular
- DF nCL.
- Sec chis Board horironcallr in vour Carden.
- Wrich Farch orSand upon cheCround, or et seprtiere
- abour3 a Clock; (the best Time is, When che
- Sun is near che Solice, suxpole abourthe jortr
- OF June) see wohere the Head oF chis Tron Dim
- Cirtich must be Marp ac the cop) siveth its Stra-
- dor upon che Board, mark châc Place: Then
- takie a Wooden Ruler, Marp also at one end
- and lay ic lo upon che Charp end of che TronPin
- may besaid ro be insinite in NFumber, For thac aIL thar the Marp end of the Ruler may touch the
- PlaCeS FrOm FastTO W CIEMaDEMICH SCreTaL Meri
- Marh; chen carrrins it Ready, makce the Segmeri
- dians: But there is (or sould bC) one Fix d, ot a Circle comards the Norh. Come again
- atich is called the First Meridian.
- MMERIDIAN On the Globe Or Sphere, IS rep
- abour 3 a Cloek in the Atrernoon, and mark
- Where the Stradon oE thecop ot rhe Tron Pim i5
- sented by the Brazen Circle, in Which the Clobe in chat Segment aeain. Then draw à Linefrom
- hanss and TUrnS. LIS airicea IHEO FOUT9OS,
- Ox 360 Degrees, Beginnins at the Fquinoctial.
- On ic, each as from the Equinoctial, on the
- thosetruo MarkS, Which ill be Past and W eA
- and che Perpendicular t0 char Linc will bc. 2
- Meridian; and if rou halre char linc, che Per
- Celestiat Globes, is connced the South and PTorth pendicular wilt so chrous the Centre, of che
- Declination oF thC Sun OE STaES: And on che (Whole Circle: FOF that Segment is part ot the
- Terrestial Globe, che Laticude oF Places Norch Basis oF a Conc, Whose Verrex is che Lop oF rHC
- Or Souch. Wtich is all one wvith che Elevarion Tron Pin.
- Or Heient O the. Pole abore thellorizon; and
- Buc because che sun may be under a Cloue,
- EhC COPLEMENEOF MHC LALIIHdC OI FOLCS HCISHE wrhen rou come ac 3 a Clock, rou may malie
- is equal torhe Fleighe oF ihe Equinoctial above
- he Llorizon
- There are ervo Poines of this Circle, potich
- are called che Poles of the Worid; and a Dia-
- chree or tour more Sesmenes, and use rhem, ad
- rou used chis.
- This Mechod mould be very exact, is che
- Sun mored as the Fixed Scars do; buc, because
- metet continued from thence throush e Lentre the, Sun hath a prover Morion, 25 a Planer
- ee crties ctotris rocalea ne paces itel gario choe mol le lope ieontore atoi vedie
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/806933011:0520?run=74