> there is a boom. You use this at your own risk. Just in case you think of > suing me, this is from an English 'little chemist' experiments book I > bought second hand. I dates from about 1938 or so. Good luck *grin*. > > Peter Hey, I've still got my dad's old "Boys own book" from the 40s which shows how to make a VanDeGraf generator, and make an Xray tube to connect to it. It even shows how to make a phosphor plate so you can look at the bones in your hand for hours on end using your new found toy. Nice huh?!! 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