Chakka, old chap, you really are a monkey you know. You're almost as bad with your bogus claims as the religious are with theirs - and I'll say the same to you as I say to them. Just because you want it to be so, it doesn't make it so. I've 'claimed' nothing and the explanations I've received, not all of which came from people with a scientific background, can only be guesses so in fact are not explanations at all. Furthermore although I answered Jake's question and asked for replies from people of science here, you will now note that since he cannot possibly provide an answer to my last suggestion, Jake is now conspicuous by his absence. Now stop being so damned supercilious, stop talking to me as though I were an imbecile, and have the courage to admit you don't know - because you don't. Lots of love. Naomi. Mwah! :o)