... etc., R3 Q3 r3 Q3 but the denominators of the fractions on the right hand of the equations are all of them, by hypothesis, unity Therefore the steepness of the curve at the points P1 , P2 , P3 ... along OX will represent the lapse of time The lapse of one second, therefore, will be represented by the movement of the bearer one unit to the right of O Now by this time the body will have risen ... marked by the movement of the pencil up and down the vertical, taken alone, and not in combination with the movement of the vertical itself; just as the time would be marked by the movement of the...