By measure the size of the frame and the thickness of the frame he can tell whether this piece of frame is suitable for his art and for the science he is using a paint that will last for centuries and he put the painting to a place where the paint won’t fade away.
When it comes to mathematics and art, Da Vinci used the mathematical principles of linear perspective in his works. The three elements needed for linear perspective are parallel lines, the horizon line, and a vanishing point. He was able to make it seem as if objects were further away from the viewer.
Impersonality and personal difference is a characteristic of bureaucracy where an individual is hired on the ability to deliver and not solely on their personal traits or attributes.