Dave, All: Here follows, for your entertainment, the rantings of a lunatic. As the dielectric constant of free space (vacuum): How can nothing (the vacuum) do something (store energy)? It can't. Therefore, since space has properties, it cannot be nothing. (it's an AETHER/or thing!) This begs the question: What the &*%-at- is space, anyway?! Flames, brickbats, letterbombs etc. welcome... Jeffrey (I'm probably nuts, please help me) Wiggins.