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i bought an old geiger counter for my high voltage experiments, and it was interesting to see the granite have radioactivity. i was shocked but i thought it was a fun thing to do! it makes you wonder what the hell is in the rocks!!

where can i get those radioactive samples because i study granite and its radioactivity also i collect samples of granite

Health Physicists Society? Those guy are a joke, mere shills for the nuclear industry. Even the founder of the HPS said they were no longer representing the safety of workers or the public.

You might want to check withe people over at Health physics they maybe to show you a few other mistakes that you made.

Regards

Well, I didn't get to review this before it was published, and there are several mistakes I made. First time I have done this, wasn't prepared. This is real life, warts and all. Two mistakes I found. The Geiger counter on X100 was actually showing 10 millirems, not 1 rem, stupid mistake on my part. The second mistake was when I was pointing out the data log info. I said 456 cpm when I should have said 4560 cpm. I'll review it again tomorrow night to see if there are any more errors. Oh, my wife posted this, this is thefirst time I have seen it.