Is it the Acid or the Sugar...

that powers this fruit clock? Probably something entirely different, I'm no scientist. But this is a little cool and a little weird. Watching a piece of fruit decompose over days while it's powering a clock seems to have some sort of grand statement to it. What's the meaning? Yeah, that's just too philosophically artsy. Find it here for 15 bucks. 

Found in the NY times this morning.