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  1. #46
    Registered user. Kevin W.'s Avatar
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    Default Re: Radium-painted clock dials a radiation concern? (By: THTanner)

    One clock at a time. Kevin West
    http://www.global-horology.com/GHMB/

  2. #47

    Default Re: Radium-painted clock dials a radiation concern? (By: Kevin W.)

    Quote Originally Posted by Kevin W. View Post
    When trying to get across at school how safe it was to use thoriated welding rod as a source I made the case using BED or Banana Equivalent Dose.

    https://en.wikipedia.org/wiki/Banana_equivalent_dose

    It's not really an equivalent to anything as the body can only hold so much potassium so eating more bananas just means excreting more potassium but it does show how daft some of the objection I had were. (Science is generally over run with Biologists as they are far more common, I didn't have trouble with Chemists and Physicists)
    Nick, lots to learn, late starter.

  3. #48

    Default Re: Radium-painted clock dials a radiation concern? (By: THTanner)

    Quote Originally Posted by THTanner View Post
    Interesting read on Uranium 235 and 238 and their real dangers to man.

    http://www.radioactivity.eu.com/site...um_238_235.htm

    I am on the water board for our community which sits on mostly decomposed granite which contains a fair amount of uranium. Our aquifer flows through the decomposed granite and the uranium. We constantly monitor our water for all the usual and required substances. We are far below the federal standards on all items except two - uranium and alpha particles. On both of those items we are below the standards, but at times, when the aquifer drops, we get close to the limits. When we get close to the standard we send out notices that infants, women who are, or may become pregnant in the near future, and seniors with serious health issues, may wish to obtain drinking water from other sources, but that there is no danger from external contact. The 1/2 life on U238 is 4.5 billion years and of U235 is 700 million years. Given the choice of drinking from glass containing uranium, platinum or lead I would choose uranium. Of course I would choose none of the above given the chance.
    And probably a lot less dangerous than the nuclear testing that used to occur in Nevada?



    RM

  4. #49
    Registered user. THTanner's Avatar
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    Default Re: Radium-painted clock dials a radiation concern? (By: rmarkowitz1_cee4a1)

    Yes - and we are still fighting the nuclear dump plan for Yucca Mountain. Here is an interesting story about all that.

    https://www.youtube.com/watch?v=BlE1BdOAfVc
    If you are not fired with enthusiasm, you will be fired with enthusiasm. Vince Lombardi

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