Jeff, Oh yeah ... I done that microwave version. Very cool. I've also crushed rock candy in a totally dark room. I don't know of any photos of natural ball lightning. Here's the link to a cool shot of the latest lab version: http://www.physorg.com/news68812957.html Dan ----- Original Message ----- From: "Jeff Hopkins" <phxjeff@xxxxxxxxxxx> To: <az-observing@xxxxxxxxxxxxx> Sent: Monday, March 12, 2007 4:13 PM Subject: [AZ-Observing] Re: [Fwd: CHECK THIS RAINBOW!] > Dan, > > Lots of picture abound of ball lightning. My son did a high science > project on Ball Lightning. > He used a Van de Graaff high voltage generator to produce small balls > of lightning. > > An easier way is with a microwave oven. > > Check > > http://jlnlabs.online.fr/plasma/gmr/index.htm > > Jeff > > At 15:48 -0700 03/12/2007, Dan Heim wrote: > >The rarest "atmospheric phenomena," if you leave it at that and don't > >specify "optical," would have to be ball lightning. Reported, > >scientifically credible, and recently simulated in the lab, but never caught > >on film. That's my vote anyway. > > > >Dan > > -- > Jeff Hopkins > HPO SOFT > Counting Photons > http://www.hposoft.com/Astro/astro.html > Hopkins Phoenix Observatory > 7812 West Clayton Drive > Phoenix, Arizona 85033-2439 U.S.A. > (623)849-5889 > (623) 247-1190 (Fax) > www.hposoft.com > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.