And you're wrong about the fly wheel. It's KE definitely is focused in one direction and it also has momentum. It's momentum is rotational vs linear. It's either going clockwise or counterclockwise. But if the flywheel explodes while it's in motion, the pieces of it fly off on whatever vector their momentum was oriented toward when the wheel broke.
Arthur, I have tried to just accept that we are not communicating regarding this but I can't help myself. Regarding the fly wheel, again I agree that it has direction but again, I'm trying to focus on an analogy with archery. Let me ask you this, when you shoot an arrow you can say what direction it is going in the context of North, South East or West. A vector! In this context what direction is the fly wheel going? What direction is a tuning fork going? Kinetic energy is defined as
the energy a body posseses because of its motion. Any motion! But in archery it is limited only to the motion of the arrow moving toward the target. Kinetic energy as the result of the type of motion exhibited by a fly wheel or a tuning fork are SPECIFICALLY NOT INCLUDED when we ALL talk about the KE of an arrow. Call this re-writing physics if you like but that is how its done in archery. You are arguing "technicalities" from a pure physics perspective that in my opinion only tends to confuse the issue. You seem to think I don't understand what you are saying but I understand what you are saying very well. I simply disagree with you. IMO you are trying to force a general text book definition to a specific case and failing to understand the ramifications of the specific case.