I believe it's called a Wimshurst Machine, as illustrated here: http://www.lehmanscientific.com/p_wims.html Is that familiar at all? Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams Benjamin Bromilow wrote: > Thinking about it, is it a VdGG or a Windshurst (sp?)machine. I can remember > it uses vinyl records and glass sheets which rotate against each other..... > Glad they're not cellulose nitrate! Big sparks and CN...... Who needs home > made gun powder? > > Ben -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics