Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
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- For ihe very preac Rariry oF rhe Fails of C0-) che Rarefaction ot rhe Marrer in the Aimolphere
- mets may be concluded by che fx d Scars (0 plain- ac the rime oF the Peribelion. Smonk, lairt he
- ly appearine chroyeh them, a5 Wve find they do
- in a Chimney ascends up by che ipulie ot che
- The Aemolphere ot our Farrh Minino wirh che Air in which ir swims or fioas: And dir rarity
- Suns Lighr, chouxh perhaps irs chicknels be bur by Fleat alcends by che diminurion ot iis Specitich
- à seu Miles, vec quice exringuisties allche Lishir ot Grariry, rakine ihe Smoak and carryirB ic up a
- ehie six d Scars, and obseures rhie Moon it selt, lons wich it. Why Mould ner chié d ait ol a Cimer
- Whereas cheurimense chichness ot rhe Lail ot a C0-
- be, atter che lame manner, surpoled 1o be raised
- m:t, plluscraced as our Arinolxtiere is by rtie Rays by che Sun d’ for che Sun- Beanii do nor agitate a.
- oEchesun, ill permic che (mallest six d Stars c0 ny Mediums wwtrich chey pals chroveh, bur ery
- be seen chroueh ir wichour any diminurion ot cheis by Reffexion and Retiaction. Lhe Ressectine
- Briehiness
- And che Fails OE most Comets have no preatet
- Parricles beins made warm by rhis Action de
- varm che Acher wich which cher asc compound.
- aSplendor than che Surbeams exhibir intien re. ed. This Acher (or Wharerer you will call ii
- Rected trom a Scream ol Mores, Dust, (30. in a beins rarified by che Elear communicated 10 ii
- darken d Room os bur ore ox ro Inches in chiek- and havins irs Specisick Graviry by which ic de
- nelS.
- (cended romards che sun belore, non diministed
- Ac wohac rime he Vapour alcends rom ehe by chis Raretaction, alcenus and carries plens
- Flead rorhe Excremicy ot ihe Pail, may be almost wich ic chose RcRectins Parricles oF wtich che
- discorered by dramine onty a Riphe Linc From Tail of a Coniet is compoled.
- che end of chie Pail io che dun, and chen norins
- the place where chac Riphr Line curs ihe Traje-
- ctoer: For che Vapour in che excremiey ot che
- Toche A(cent of chele Vapours, ic conducesthar
- they are carried by 2 circular Morion round che
- Sun, and consequenrly, endearour ro recede trom
- Tait, it ic alcend in a Rishir Line trom che Sun, che Sun, While che Armolphere ot che sun, and
- will begin ils ascent ar checime when che lead ot che Macrer oE che Llearens dorh cirher really rest
- cheComet is in che place ot incersection.
- Bur indeed che Vapour dorh nor ascend in a Rixhe
- or elle beins moved wich no orter Morion chan
- Wwhac chey hare trom che Suns Circumrorarion
- Line trom ehe Sun, bur by rerainins che Morion al are moved verr Rowly. Thele are che Caules o
- rhe Comet which ir had betore irs ascent, and com
- che Alcene oF Vapours inco rhe Tails ol Comets
- poundins ic wich che Mocion oFirs Alcent, ic alcends when chey are wichin che Contines of che sun
- obliquely; Wheretore ic will be a cruer Solurion where cheir Orbirs are more curred, and where
- of rhie Problem, eo suppole rhe Righe Line wtrich Comets beins wichin che Denser, and cheretore
- incersects che Orbir, eo be parallel ro che sensch hearier Armosphere ot the Sun hare cheir Tails ot
- Ot the Pait, os racher (Because oF che Curvilinear
- rhe greacest Lensch. For che Fails which are non
- Mocion ot che Comets) char ic diverge trom che produced by preserrins cheir oon Morion, and ac
- Line oF che Tail. By chis means I tound char che
- Vapour irhich as in che excremiey of che Tail,
- Fan. 25. bexan ro alcend trom the Fead betore
- che lame rime pravicarins comards che Sun, vill
- move abour him in Elliples, likre cheir Fleads.
- and by chac Morion will alvars accompany and
- Occember IY, and cheretore had casen up more trecly adhere ro cheir leads: For che Graviry ol
- chan 45 Days in ies Alcemr: Bur aI char lon
- che Vapours rowards che Sun, will no niore cause
- Fail wrhich appeared Decemb. 10. ascended in chethe Tails of Comers ro Forlake cheir Fleads and 1o
- space ofchoservo Days, Whichuvere rhen just past
- ince iIS Peribelion; Wheretore che Vapour ac che
- beginnins. When che comet was near ehe sun a
- fall donn romards che sun, chan che Gravicy ol
- che Hleads can make rhem Fail of trom cheir l’ails
- By cheir common Graviry chey vould cirher fall
- Donn co rhe Sun rogether, or De rogether retar
- scended prodixioully Cwitc, and alcerwards conci-
- nued co alcend wirh a Norion recarded by rhe ded in cheir ascenc, and cheretore this Gravier
- Graviey oF che Parricles, and by char ascene en-
- creased che lenoch ot ihe Tail: Bur ihe Lail. 25
- lons as ir appeared, constted slmo eII ot. thav
- Vapour exhich alcended irom che rime of the Peri-
- belion: and c aee te u alcendea and
- doch by no means hinder bur chac che Feads and
- Fails OF Comers may receive and ierain any Positi
- on co one anocher, Which cicher che abore men-
- tioned Causes, or any ocher may produce
- Thele Fails cheretore which are thus produced
- composed rhe Bounds of, ihe Pail, did noc vanis in che Perihelions oE Comets, will 80 oA alone virt
- ill ic w25 borh r00 far of rhe sun eo be illuminq.
- cheir Fleads into remorely distane Regions, and
- red by him, and of us, 1o be riliblo. Hence also trom chence, cicher ich rhe Comets chemlelres
- ehe Fails aE Coens wrhich are Morrer do nor a
- cend wich 2 quick and concinual Mocion trom che
- Elead, and etien prelenly ranim and disappears
- buc are permanent Columns ot Vapours and lixtra
- recurn again co us atrer a lone series of Pears; op
- racher beins chere rarihied ranis quire away b
- lations, Pachered trom the flead by 2 very sencle
- Aocion, and in a preat space oF Time; which rerby
- lirrle and lirrle: For oftervards in che descene ol
- cheir Hleadscomards the Sun, lome licele Monr Taile
- oughr graduallr and Aowlr eo be produced from
- the Fleads, irhich atrermards in che Peribetions ol
- parriciparins of char Morion oF rheir Fleads which ucti Comets 25 descend donn into the Suns AC
- thes had ac chebepinnins; chey conrinue casils ro molphere must necds be immensely encrealed;
- more alons wich cheir Fleads chrouph ehe Celesti. For che Vapours in chole tree Spaces will continu.
- al Resions. Andtrom hence ic may asain becon. ally be raritied and dilaced, wrhence ic comes to
- rer chac hal.any pover ot Remitiance ot Phuch broader chan chac end nexe the Flead ot che
- Aance in A, Ance noc es ene tances ana CComet
- eluded, ac eaten a MalPaIS, chac che Pxcremicy ot the Tail is alvaye
- mers chemletres, duceven luch very rare Bouls
- Cor 2 vast While cogether.
- This excellene Auchor lurposes M ent et
- And ic appears aprecable enouph ro ReaIon 10
- as the Tails of Comets, can boch move elere very Suxpole, thac chose Vapours which are thus dilared
- freely and svisily, and also conrinue rhac (Latied, and aittuled chroughour all the Celestial
- Resions, may by lierle and licele by cheir ownpro-
- PEF LFAVICY DC acrracted donn eo che Planets and
- polo lio Lam d comers ed d lalled by become incerminsted vit chcie smitel
- L6
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/806933011:0204?run=74