Vintage radioactive wrist watches - Is Radium really nasty?
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01-23-2015, 08:09 PM
Post: #23
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RE: Vintage radioactive wrist watches - Is Radium really nasty?
(01-23-2015 07:52 PM)jebem Wrote: And let's not forget about the Thorium based gas mantles. Yeah, there's okay to test beta emissions with. The most interesting emitter I have is a surplus 1B22 spark gap tube. -katie |
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