On Thu, 27 Jun 2002, Benjamin Bromilow wrote: >> ;-) I collect old technical books. Not seriously (yet) but I buy whatever >> I can afford. How would a VanDeGraaff (sp?) power an X-ray tube ? The >> current would be too low I think. You piqued my interest here . I have > >I'll get my brother to bring up the book from my parents home and I'll scan >the pages. It's got some great bits in it.... how to make gunpowder etc. But >then I believe it's possibly older than my dad (? a hand-me-down), and from >a similar vintage as my grandmothers recipe for cookies with one of the >ingredients being Cocaine! I kid ye not.... It was legal and perfectly >respectable back then! > >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? Ah, Wimshurst. Yes that should give more current I think ... Peter -- 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