In reply to Robin van Spaandonk's message of Sun, 12 Mar 2006 12:15:17 +1100: Hi, [snip] BTW if you want to try this, you should be able to use the Am241 from a smoke detector. 1 micro-Curie of Am241 contains about 2400 J, which should light a 20 W bulb for about 2 minutes (less once losses are taken into account).(Which may be what is in the photo). Regards,
Robin van Spaandonk http://users.bigpond.net.au/rvanspaa/ Competition provides the motivation, Cooperation provides the means.
