Just came across this news item via twitter:-http://blogs.scientificamerican.com/mind-guest-blog/2013/04/01/in-nerve-cells-an-energy-source-nobody-knew-about/-A new energy source found in nerve cells. -"It propels the molecular "motors" that drag neurotransmitters from the nucleus where they're made. The "motors" are assemblies of molecules. They walk like clumsy robots, with a staggering gait, dragging a capsule of neurotransmitter "bullets" along microtubule "highways" between nucleus and synapses."-Weird stuff! Chemical robots with built-in batteries? Not minds though!