November  UTC  Thanks for that After my last posting I decided I had been a bit hasty and did go back to look more closely and follow other links Much more interesting than I thought  the website is not very well organised which tends to deter a new visitor however seeing the names of Jim Crank and George Nutz as technical advisers certainly brightened up the prospects I have downloaded the patent document and am now wading through it after first listening to the radio interview Anyway if you wish to discuss this matter further it might be better to do so on my talk page rather than clog this one up Cheers