Moving Towards Decay

There's a law or theorem in physics that states something to the effect of everything is moving towards decay.  Of course, that's my paraphrase.  That would explain why screws never work themselves tighter and why the Christmas tree lights always end up tangled, even though you know you put them away neatly last year.

This third photo of mine for National Photography Month is another example of that principle.

Rob Langer struggles against physics.