• The non-representation of movement

For a long time, painters chose to represent objects as they are and not as they seem: the blurred effect of turning wheels was not evoked, and wheels were represented as they are, that is to say with solid spokes.

• The suggestion of motion

In painting, the question arose in the mid seventeenth-century whether painters should represent the blurred appearance of objects in rapid motion, e.g. wheels. In the mid 17th century, Velázquez showed such an effect in the spinning-wheel he showed in Las Hilanderas . In the late 18th century, Stubbs painted the wheels of a chariot with blurred spokes.

see the turning spinning-wheels, which are shown to be blurred, reproducing the observers' visual illusion

Velázquez, Las Hilanderas