. Perspectiva commvnis : ideo sic dicta, quod contineat elementa tes optikes, omnibus philosophiæ studiosis necessaria : in hac enim doctrina inchoatæ disputatioes philosophoru, de natura, & proiectione radiorum unisus, luminum, colorum & formarum absoluuntur : in quibus & de speculis tractatur : summa cura & dilgentia emendata, & ab infinitis quibus scatebat mendis repurgata, necnon in quibus deficiebat demõstrationibus restituta . ur circufiim in Sole,, di&um tri-!anguItim no penf tus circumfcriben:sem/ed. paulo minorem;& fit k l m*£uam drcumferentiamangulis tri*anguH^re applicantem, Abhocci
. Perspectiva commvnis : ideo sic dicta, quod contineat elementa tes optikes, omnibus philosophiæ studiosis necessaria : in hac enim doctrina inchoatæ disputatioes philosophoru, de natura, & proiectione radiorum unisus, luminum, colorum & formarum absoluuntur : in quibus & de speculis tractatur : summa cura & dilgentia emendata, & ab infinitis quibus scatebat mendis repurgata, necnon in quibus deficiebat demõstrationibus restituta . ur circufiim in Sole,, di&um tri-!anguItim no penf tus circumfcriben:sem/ed. paulo minorem;& fit k l m*£uam drcumferentiamangulis tri*anguH^re applicantem, Abhoccirculo procedunt pyramides rotundx,quarum nulla poteft, propter faEaminis anguftiam, ad c. punctumprocedere ; pertinget tamen pun&um foramini propinquio-tem> aut etiam inipia fuperfkie fo^eaminis contentum, ueluti ad pun-cftum h. Quia angulus pyramidisCerminatadn punelo H,maioreft pyramidis tetminatae in pim«do g, pcr x x n pwni eleraentori*Euclidis, Certum quocjj radij pyramidis breuior is in continu 5-te&umeg duxfli,fecabunt radios. longforis pyramidis: cV qui radtj antetnterfe&ionem continebantur & indudebantur,poft interfeclionem a*lioscontinentcVcircumcIudunt«Qyum igitur breutor pyramis fft ratunda,fequitur u t dicftam i nciden tispoft interfedioncm, rotundam fa*ciam;,(icut patet in ngura>quatenushxc in plano dedarari poffuntv Facile nanc# intdligt poteft» quo*. ^^modo »khm,inhpundo concur^mflt^dCXe interfecantesextra triangularem pyramidem dila*^^l^ SotecentraliteregredienteSjCqutajrfs funt fortiores radiarK|p)utpote qc , i^,ca4ent intrapraedictam fotundam pyrajnidem,eamc$fecabuntu$in pun-c&is r ^Brgpfaltemrpoftiilt^^j^^^ionjeni^erii^yrai^^Otftunda», Ssedcerte haec imaginaab etiamlocum haberert^Splcfletfigurap:planequadratae* Iniploenimeile taJiquis triangjuxsl^^quiipoiTetforamen triangulare direeje refpicere,c\circ^ citeunifssil^ensi 4quo p^l&t rosun(fe^pa
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Keywords: ., bo, bookauthorpeckhamjohnd1292, bookdecade1540, booksubjectoptics
