# Leibniz Legible — https://leibnizlegible.com
# Page: https://leibnizlegible.com/page/DE-611-HS-860751:0186
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# Title: LBr. 699 · Orban
# Folio 92v, page id DE-611-HS-860751:0186
# Scan: One image of two folio pages side by side, registered by the library under both labels (also fol. 93r); this page is its left half.
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=DE-611-HS-860751&page=186
# Source image: https://digitale-sammlungen.gwlb.de/content/DE-611-HS-860751/jpgs/default/00000186.jpg
# Model: FoNDUE-GD_v2_ft_Leibniz, run 79, 2026-09-07T03:33:42Z — 32 lines, status machine
# Lines: 32 recognised, mean confidence 0.97
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
# Wording rule: say "the machine reads it as …", never "Leibniz wrote".
# After the first blank line: the recognised lines in reading order, one per line.

quandam
realis RMNP, superficies fiet et imagirem dabit.
Aet B, et it m B et C, item C et Q
Concipiendum, autem est puncta A, B,C, Z, ad eoqe puncta
va N et Pve  et ita porro,
Ment,  esse sibi quam proxima seu habere distantiam interse
indefinite parvam. Ita radii siunt tangentes linea curvae
ipsorum concursu formata. Si radi incidentes essent
paralleli, et speculum esset parabolicum axem habens
parallelum radiis omnes radii reflexi concurrerent
in uno puncto cese sua quod vocatur Focus. sed
quando speculum est circulare, non fit verus Foeus
sed  eo figura ex concursibus formata, habe
magnitudinem, et quod ammodo exhibet obj ecti
maginem  eamque velut in
sie concursus mudiorum
aero suspensam.
format lineam quandam lucidam in superficie aquae
ab interiore vitri superficie reflexam. Si aquam
vitro infundas, et candelam aclersam in vicinia
colloces. Htic ergo concursus radiorum sire reflexo
rum sive refractorum est fundamentum hujus modi
A methodum
specierum realium, et praebet fundamentum Geome
tricam eas indagandi
Vellem processum specula sine foliis conficiendi hase
remus ab aliquo qui ipse fuisset expertus, aut eb expertis
oculari fide didiesset. luns processus miri valde
cidetur verisimilis
Mechanicus quidam Berolinum aHtulerat
specaum concavum ligneum, auri folios obducum
M et N