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ken scharf wrote:
wrote: Does anybody know about vacuum pumps homebrewing??? :-) A LONG time ago (maybe 40 years?), Scientific American carried an article (in "The Amateur Scientist" pages) about making a vaccuum pump. (It may have been part of or near an article about making your own laser which was strong enough to bounce signals off the moon!) You can get a reprint of this book from Lindsay books www.lindsaybks.com http://www.lindsaybks.com/bks/expphy/index.html |
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