Sorry for my initial dismissal Karen I hope you weren't offended, I feel quite stupid now ,
reading your posts again has planted a seed of interest, so,,, I've set up a subscription with my newsagent for more reading, my first issue of 'What the forks' magazine comes with a free LSD tab
No seriously its not my thing, however there are a few members of the YOC who are into the 'sciency stuff, Up-yours (yes its a users name) could spend hours in diligent chat with you-drop him some PM's (personal messages), he was telling me the other night he thinks you need a good 'boffin'