Compound Flight of an Arrow, with a Double-Bow Crossbow
A second added impetus increases a projectile's motion; a twin-arced crossbow is sketched
The page carries a proposition (given only as an e-Leo caption) that the motion made by an arrow in its ordinary simple flight grows in proportion to the power of a compound motion produced by a second, added impetus. A small red-chalk sketch at the lower right shows the scheme of a crossbow built with a double bow. Because the source is caption-only, no full transcription of the mirror-written lines is provided, and further untranscribed text fills the upper half of the sheet.
On this page
The added impetus of a second flight
Per the note, the motion made by an arrow from its ordinary simple flight increases as much as the power of a compound motion produced by a second, attached flight. It treats a projectile whose impetus is reinforced by a further impelling force.
Scheme of a double-bow crossbow
A small red-chalk drawing at the lower right sketches a crossbow (balestro) built with two arcs, as its caption records. Pairing bows would increase the propelling power imparted to the bolt.