Ball lightning info
Ball lightning
ABC Science Show - May 17. 2008
Bob Crompton describes some theories for ball lightning, the phenomenon where a source of light is observed. The source can be quite small to up to several metres in diameter. Unlike lightning, the effect can last for many seconds.
Full transcript here:
http://www.abc.net.au/rn/scienceshow/stories/2008/2247422.htm
