Percussion of spheres, arithmetic, and a large winged mechanism
Impacts of spheres weaken with distance and angle; a column of labels, number-work, and a broad winged device below.
The sheet, worked upside down, gathers studies on the percussion of spherical bodies: their blow grows weaker the farther it is made from the central line of motion, and its force varies with the angle of impact and the degree of penetration. A right-hand column repeats the labels p, g, t and s in a tabular scheme, and a block of arithmetic operations sits at the left. Dominating the lower sheet is a large mechanism with a central hub and two broad wing-like frames radiating outward; no text describing it is included, so it is noted here from the drawing alone.
On this page
Percussion weakens away from the central line
The percussion of a spherical heavy body is of so much less force as it is made more remote from the central line of its motion. The claim accompanies a figure at the left of the sheet.
Impact of spheres at differing angles
Two figures of spheres show impact at various angles. The more unequal the angles of first contact, the weaker the blow; a blow made between unequal angles gains power at every degree of penetration up to the midpoint, while one made between equal angles gains weakness.
Column of arithmetic operations
A block of number-work: 24, 1, 8, 192, 25, 63, then 2 15/24 and 24. The figures are arranged as a column of calculations.
Large winged mechanism
A large mechanism fills the lower sheet: a central hub or drum from which two broad wing-like frames spread outward on either side, braced by radiating members. No transcription accompanies it, so it is noted from the drawing alone.