Pic­tures Con­sid­ered #15 by Christoph — Why on earth would one stare – even for a few sec­onds – at a blurry, low-res, pix­e­lated movie, watch­ing a jit­tery rod tum­bling coun­ter­clock­wise around its pivot? Be­cause it's ATP syn­thase, a key en­zyme of the en­ergy me­tab­o­lism in every liv­ing cell, that's ro­tat­ing there. And when...