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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
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aH che leas Gradarions are elteemd disserent) in irs Palsage chrousli differene diaptianous B0
Sounds.
LCLC+L2H5.
1. The Suns Lighe consists oF Rays disserine
by indetinice Desrees ot Retransibilier.
2. Kays which differ in Retransibilier, uten
parred trom onc anocher, do proportionably dit
dies 10 procced trom hie Medium hindering
che Diffusion Or Distribution ot Lishe chrouotr
more ot che Parrs oE chis Medium, and conte-
queney icmar be Caid roDe less illuminable: FOr
Fromche Nacure oFic, Lishe endearours ro disfuse
ic selE. And che contrarr, by hou much Lieht
does more equally or unitormly affect rhe PaTS
oF che Medium, wtiich ic entigticens; or by hou
et in che Colours whichcher exhibit. These much ic communicares irs Finergy ro more oE che
Tio Propositions are Macter OF Fact.
3. Thère are as many simple or Llomogeneal
Particles oF che entighuned space, chac Medium
mas be said ro be by (o muehr che more illumi-
evers Deoree ot Retransibilier, belonss 2 dif-
nable, Ox less eo resist che Proorels oC Lisht.
Whence ic is, chac by ho muchche aftected
Ferene Colour, by Prop. 2. And char Colour is Parrs of che Medium are more solid and smalli
Simple, by Def. 1. and 3.
a. Trhicenels in all respecto, like that oF the
Suns immediate Lighe, and of all theusual Ob-
and admir becween chem che less space tor any
ocher Feterogeneous Matrer, Thac sutters not by
Lishe; br e0 much che Medium 1s laid 10 be
jects oE our Scules, canmot be compounded ot more entichined.
curo simple Colours alone: For such a Compo-
sicion must be made by Rars chac hare ontr
tiro Degrees ot Retransibilitr, by Def. L and 3.
Ard cheretore ic cannor be likre char of che Suns
Cixhe, by Prop. T. Nor, For che Came Reason,
like chac ot ordinarr Wrhire Objects.
5. Trhirenels in all respects, likre that oE the
Suns imimediare Lighe, cannoc be compounded
ot Simple Colours, wichout an indetinite Varierr
ot chem. For ro Tuch a Composicion chere are
required RayS endued wich aII che indetinire
And ris cerrain chac Resistance ust procced
From che Contact oF uvo Bodies; and Contact,
cirher Active or Passive, belones onty to Body.
The Second Properer chac contirms Licht 1o
be a Body, ad a Body moved ox chrust forvard.
i5, Thac ic requires Time ro pals troim one Place
to another, and does it nor in an Instant, buc is
Onty ot aIl Morions che quickest. FOr MF. RO.
mer has demonstrated, berond all Concradiction.
trom che Obserrarions oF the immersions and
Emersions oE che Satellits ot Fupiter, That Lieht
Deorees oF Retransibilier, by Prop. P. Andchole requires the Time of one Second to move the Space
inter as many simple Colours, by Def. r. and 3.
and Prop. 2. 2nd 3
6. Thekays ol Liehr do nor aet on one no.
ther, in pastins chrouch che same Medium.
of 3000 Leagues, or 9000 Miles, which is near
the Farths Diameter: 25 may be seen in che
Fournal des Scavans, 1676; Decemb. 7. Philos.
Trans. TTuM. 136; OF MT. NertonS Philos. Na-
7. The RaYS OF Lishc sucter noc any Chanse cur. Princ. Math. Lib. T. Schol. Prop. 96. Where
oE cheir Oualiries trom Retraction.
ris afferred, Thac Lishe requires abouc 10MI-
8. Noc asterwards From the adjacent quier nutes Time to come trom che sun t0 he F arth.
Medium. Fhele cvo Proposicions are manifest And ris most evidene, wichour chis Allovance
de facto in Fomoseneal Lisht, Whole Colour and
Retransibilier is noc ac all chansable, cither by
For che Time spene in Lishes Morion, che AP.
Pearances oF che satellites Feliples and Fmer-
Retraction or by Conterminarion ot che Ouiet Tions, are nor co be explicated by any Fxcentri-
Medium.
And ad For Heteroseneat Lisht. Llo ul aMt A8
gresare oF several Corrs oF TTomogeneat Lisht:
No one Torr oF Wrhich, susters ans more Alera-
tion chen il ic vere alone, because che RaYS
ret noc oneupon auocher, by Prop. 6. And There-
city or ocher Fyporhetis.
A Third PrOOF MaE LishF IS 2 BodY, IS, TMaE
it cannor by any AI Or Contrirance Whatsoerer
De increas d Or diministed; chac is tO CaY, We
cannor masnisie (For Instance) ihe Lishe OF che
Sun, Or a Candle, no more chan ve can maens
a Cubick Inch: For Wwhenever we lec Licht In
duced out oF Lighe by Retraction, wteh alc) crealed, ris by robbins of lome ocher P’art ot
noc commine u Il betore; becaute,  Prop. 7. che Medium of its Lighr, or by bringins che
RetrangibilII).
Binal.
Cla(s, by wxtich che  et  ban to atas
sic a Cubick Inch oF CMu, O Make L More Ca
Forethe Agoresace can lustet ene
9. There ean no TTomoseneal Colours be re-
ehe Rars, buc oris sepatales clere ch hare  chroush some ocher Parr, ro che more entighr-
and 8. Retraction chanseth nor the Oualiries oF Lighe, chac naturally Mould hare been dittuled
divers Oualiries, by means of their differene ened Place. Thus, For Instance, in a Burning-
20. The Suris Lighe is an AgGreeate oF an (Mereased in ilS FocIS, or Dumine- Poine; We are
indesinite Variey oF Flomogeneal Colours, by Arst to consider, thac in chis Focus the Imase ot
Prop. T. 5. and 9. And hence ic is thac FTomo- che sun is projected, as beins che distinet Base et
chere is cast che Arons Shrado ot che whole
Breadeh ot che Burnins-Ia(s: For all rheRay
gereal Colours mas be called Primicire or Ori  ee Ctals. Ala Seconaly. Wemay oblerve al
round abour chis brighe Spor oF che SunsImage
ThacLizhe is a BOdY, M. Molyneux in his Diop-
tricts prores trom the rarious Proverries ot ic. AS,
. By che AAection oF its beins Refracted, is
trom the Sun, chât Woue ilare Fallen on this
manifest chac Lishe in its Passase chroussi chis and croided etse  cs s Spol, chere
and c’ocher diaptonous Body, does find a diffe-
rent Resistance. No is unconceirable hou
any thins buc Body Mould Custer Resistance; bur Pele. FOr corer all the Burnins-Cla(S, Cx-
Olbad Thadea Spacc, are no broughe cogether
raisins 2 visorous Lishe and violent LCat.
This is abundanly contirmed by an easie FX
ue may concerre che delllanee thacLisd lulelo s cep oue hglcoupe opace in no Mialle, que