In reply to Jones Beene's message of Sat, 16 Dec 2006 08:48:55 -0800: Hi, [snip] >It would be very interesting to know, for instance, if there is any >surplus of 38Ar in the Aurora Borealis, or in Robin's case the Aurora >Australis. [snip] Since there is always a small amount of 38Ar present in natural Argon anyway, any increase due to formation in the Auroras would likely be undetectable. Regards,
Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.

