Principle 4. Asymmetry

1. Change the shape of an object from symmetrical to asymmetrical.
   Asymmetrical mixing vessels or asymmetrical vanes in symmetrical vessels improve mixing (cement trucks, cake mixers, blenders).
   Put a flat spot on a cylindrical shaft to attach a knob securely.
2. If an object is asymmetrical, increase its degree of asymmetry.
   Change from circular O-rings to oval cross-section to specialized shapes to improve sealing.
   Use astigmatic optics to merge colors.