Definition of the line of direction
A statics note on the line that cuts the line of equality between four right angles; further text and balance sketches remain untranscribed
Only a single opening definition is transcribed from this closely written leaf: the line of direction is that which cuts the line of equality between four right angles. The sheet is in fact filled with much further writing on weights and balances that is not included here, so additional untranscribed text is present. Its left margin bears small drawings of a balance and hoist-like mechanisms.
On this page
The line of direction defined
Leonardo defines the line of direction as the line that cuts the line of equality between four right angles, a term from his statics of the balance. The definition breaks off, and the surrounding page carries much further text that is not transcribed here.
Balance and hoist mechanisms sketched at the margin
The left margin carries small mechanical sketches, including a balance suspended from above and a framed device with paired weights. They accompany the untranscribed statics text filling the sheet.