Friction of Polished Bodies in Straight, Oblique and Curved Motion
Small block diagrams for the study of rubbing between smooth surfaces
A short heading, written in the reversed hand across the top of the sheet, sets out a study of the friction (confregazione) of polished bodies as it occurs along straight and oblique lines and along curved and revolving lines, together with the quality of the bodies subject to friction. The rest of the page is occupied by small rectangular block diagrams drawn in ink and lettered a, b, c, d and e d c b a, showing bodies resting on flat planes. The greater part of the leaf is left blank.
On this page
Programme for the study of friction
The heading announces an enquiry into the friction of polished bodies. It is to be considered as motion follows a straight and oblique line, and also a curved and revolving line, and it also embraces the quality of the rubbed bodies themselves.
Lettered block diagrams
Small rectangular blocks resting on flat plates are drawn in an ascending diagonal, with a larger assembly of blocks on a plane at the lower right. They carry the letters a, b, c, d and e d c b a used to identify the bodies undergoing friction.