Oculus artificialis teledioptricus, sive, Telescopium : ex abditis rerum naturalium & artificialium principiis protractum novâ methodo, eâque solidâ explicatum ac comprimis è triplici fundamento physico seu naturali, mathematico dioptrico et mechanico, seu practico stabilitum ... . tituant. Praxis autem perfeaeelaborandi talis efto. Pro concava fuperficie requiritur convcxus conus ^quilaterus torno efFor-matusin fufficienti magnitudine ex ftanno,^re,cupro,autqu5vis duriorimateria*hic conus alicuimachinx motum horizontalem habenri ex fuperioribus cap 7 cx-plicatis( vel6.)imponit

Oculus artificialis teledioptricus, sive, Telescopium : ex abditis rerum naturalium & artificialium principiis protractum novâ methodo, eâque solidâ explicatum ac comprimis è triplici fundamento physico seu naturali, mathematico dioptrico et mechanico, seu practico stabilitum ... . tituant. Praxis autem perfeaeelaborandi talis efto. Pro concava fuperficie requiritur convcxus conus ^quilaterus torno efFor-matusin fufficienti magnitudine ex ftanno,^re,cupro,autqu5vis duriorimateria*hic conus alicuimachinx motum horizontalem habenri ex fuperioribus cap 7 cx-plicatis( vel6.)imponitur,itaut coni vertex& axiscum axe motojrioinunamlincamrcaamprocurratj quodutdcbite procurcturj pararidebetliffncusorbis fupcraxemmotorium,:um,cum circumfufoplaraboutcapitelloaxisoptimecongruat. Dumaxiscum orbe ligneo in machina eft ap-plicatus, & motu horizontali circumrotatur, raforio inftrumento incidatur in fuperiori orbis lignei fuperficie circulus, qui perfed^ capiat coni SBquilatcri bafin-fictutconivertex&axisinunamhncamordineturcum axemotorio: piceo etianJbitumine bafis coni ligneo orbi agglutinctur, ut firmius adhxreat. Sed vide fiau-ram i. ^eftvertcxconi^quilateri^^QorbisligneusZ^^^impofitusaximoto^ri©FH: axis -^Gconicum axe FH Hoc i ii-ti. 68 rUNDAM. III. PRACTICO-MECHANICUM

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Keywords: ., bookcentury1600, bookdecade1680, bookidgric00033125, bookyear1685

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