Overview Level of Folio 37 v


SizeHeight 290 mm, width 208 mm.
WatermarkEagle encircled with crown outside. Watermark not noticed by Drake.
CommentsWritten by Guiducci with an addition by Galileo; contains texts, drawing. Copy without original. Relation to the Discorsi: incomplete draft (statement) of 2/04-th-04; elaboration of 2/04-th-04.
References Caverni 1972 363-364
Folio 37 v (final text)
1Sit bi media inter db, be, et is parallela ad dc; et quia ut tempus per ba ad tempus per be, ita linea ba ad lineam be; ut autem tempus be ad tempus bd, ita linea be ad bi; ut autem tempus bd ad tempus bc, ita linea bd ad bc, hoc est bi ad bs; ergo, ex aequali, ut tempus per ba ad tempus per bc, ita linea ab, seu cb, ad bs, hoc est db ad bi, seu ib ad be: quod erat probandum.
2Tempora lationum in planis aequalibus, sed inaequaliter inclinatis, sunt inter se in subdupla ratione elevationum ipsorum planorum permutatim assumpta.


Overview Level of Folio 37 v