Barrow, Isaac
,
Lectiones opticae & geometricae : in quibus phaenomenon opticorum genuinae rationes investigantur, ac exponuntur: et generalia curvarum linearum symptomata declarantur
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nendo erit I. </
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<
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nendo R. </
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<
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metam, citra quam (reſpectu centri C) nullus reflexus axem de-
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cuſſabit; </
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:</
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& </
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BZ. </
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CZ. </
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<
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BZ. </
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<
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modi punctum Z eſſe locum ipſiſſimum imaginis punctum A exhiben-
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tis oculo, puta O, in axe CA conſtituto; </
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ab Opticis; </
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aſſignando loco aberratur; </
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ctum (puta Q) tanto ſemotum à vertice B intervallo, quanto radi-
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ans A ab ipſo B diſtat. </
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one nititur (imò rationi prorſus adverſatur; </
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<
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radius oculum ingrediatur tanquam à puncto Q proveniens) experi-
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entiâ facilimè refutatur. </
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<
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candela ſpeculo cavo GB γ exponatur, oculo velut ad O ſito longè
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majori diſtans intervallo conſpicietur, quàm ipſo BQ, quod ipſam
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AB exæquat. </
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<
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æquali diſtantiâ, ſed admodum majori videbitur elongari; </
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circiter ad ſenſum, probabilémque conjecturam; </
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<
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requirit à nobis præſtituta. </
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ſuffragio conſtabilitur.</
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<
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<
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<
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extra radiationis axem poſiti; </
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antecedaneis modo; </
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<
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</
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<
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<
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<
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oribus reflexis imaginem extra circulum conſiſtere; </
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bus intra illum, nempe ſi fuerit AE &</
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