Science question

Discussion in 'The Pub' started by hellbender, Apr 24, 2016.

  1. hellbender

    hellbender Member

    Messages:
    22,703
    Joined:
    Feb 20, 2004
    Location:
    sector R
    if you had one ounce of radioactive plutonium and it had a half life of 10,000 years; in 20,000 years would you have 1 ounce of non radioactive plutonium? Would it revert to a base material or become something else?

    Inquiring minds
     
  2. Cal Webway

    Cal Webway Member

    Messages:
    9,593
    Joined:
    Mar 26, 2013
    Location:
    Larry, ND
    I think the degeneration is more exponential than linear
     
    Last edited: Apr 24, 2016
  3. Seth L

    Seth L Silver Supporting Member

    Messages:
    24,023
    Joined:
    Mar 22, 2014
    Location:
    N.C.
    Why would you care? You've been dead almost 20,000 years. There's your science!
     
    Nevets, EricPeterson and Cal Webway like this.
  4. swiveltung

    swiveltung Member

    Messages:
    14,549
    Joined:
    Feb 5, 2011
    Location:
    PNW
    Good question... once the radiation leaves , what is left? Same Mass? Different "stuff"?
     
  5. Killed_by_Death

    Killed_by_Death Member

    Messages:
    13,777
    Joined:
    Jan 10, 2016
    Location:
    14 Megameters from Groong Tehp
    In two cycles of half-life, you would have 1/4 ounce of radioactive Plutonium.

    [​IMG]
     
    chopsley, ACfixer, 65DuoSonic and 4 others like this.
  6. lefort_1

    lefort_1 Nuzzled Firmly Betwixt Gold Supporting Member

    Messages:
    12,615
    Joined:
    Aug 4, 2012
    Location:
    Oregon
  7. aynirar27

    aynirar27 All You Need Is Rock and Roll Gold Supporting Member

    Messages:
    29,413
    Joined:
    Jul 15, 2011
    Location:
    Great Barrington, MA
    It turns in to edible yellow cake
     
    shane8, EricPeterson, burner and 5 others like this.
  8. Blanket Jackson

    Blanket Jackson ¿Qué Hiciste? Silver Supporting Member

    Messages:
    13,999
    Joined:
    Sep 1, 2009
    Location:
    Brooklyn NY
    More like 1/2 of 1/2, or 1/4 of the original amount
     
    VCuomo and Killed_by_Death like this.
  9. chrisr777

    chrisr777 Member

    Messages:
    22,676
    Joined:
    Jan 30, 2007
    Location:
    Lost in Hollywood
    Never been a big fan of cake.
     
    EricPeterson, AZChilicat and lefort_1 like this.
  10. derekd

    derekd Supporting Member

    Messages:
    34,814
    Joined:
    Sep 10, 2007
    Location:
    In a van down by the river
  11. Boobala

    Boobala Member

    Messages:
    7,769
    Joined:
    Feb 22, 2008
    Location:
    in a cave, grooving with a pict
    The others are correct. If your theoretical element had a half life of 10K years it would lose half of it's radioactivity after 10K years, then half again after another 10K years, making it 1/4 as radioactive as the original. After another 10K years, it would be 1/8 as radioactive as the original.

    What happens at the end, I don't know, but along the way it loses atomic mass and becomes other elements.

    [​IMG]
     
  12. lefort_1

    lefort_1 Nuzzled Firmly Betwixt Gold Supporting Member

    Messages:
    12,615
    Joined:
    Aug 4, 2012
    Location:
    Oregon

    This is a big hit in our pastures:

     
  13. Nurk2

    Nurk2 "Ignore Everybody" ~Hugh MacLeod

    Messages:
    8,086
    Joined:
    Jul 25, 2011
    Location:
    Upstate NY
    ...or death.
     
    EricPeterson and aynirar27 like this.
  14. murph7489

    murph7489 Member

    Messages:
    764
    Joined:
    Oct 8, 2015
    Location:
    Myrtle Beach SC / Hornell NY
  15. DetSlicker

    DetSlicker Member

    Messages:
    4,162
    Joined:
    Jun 28, 2008
    But where does the creamy filling come from?
    [​IMG]
     
  16. hellbender

    hellbender Member

    Messages:
    22,703
    Joined:
    Feb 20, 2004
    Location:
    sector R
    I wonder what it is about time that saps radioactivity. Does it just get tired? Is there a transformation taking place that consumes radioactivity as the element ages? What determines the rate.
     
  17. Quantum Cat

    Quantum Cat Member

    Messages:
    1,177
    Joined:
    Aug 13, 2007
    Location:
    Lexington, KY
    Radioactive isotopes have an unstable nucleus. This means that the particular combination of protons and neutrons are in a high energy state. Like a ball rolling down hill, high energy always wants to "roll downhill" to a low energy. The nucleus sheds excess energy by emitting particles called radiation. In the case of heavy elements like plutonium, alpha particles are common. Alpha particle are basically helium nuclei, which have a lot of energy.

    The rate of radioactive disintegration for a population of atoms is measured in half lives. So, after one half life, half of the atoms have "popped", spitting out a particle. It's based on the statistical probability of any one atom disintegrating at any given time.
     
    chopsley, Icedstevo, Blix and 2 others like this.
  18. YYZ

    YYZ Supporting Member

    Messages:
    2,210
    Joined:
    Mar 14, 2009
    Location:
    Orange, CA
    Sounds like if you catch it at the right time during the decay process, say an atomic mass of 214 to 209, you can have yourself an effective anti-diarrheal. If you miss that window though...
     
  19. lp_bruce

    lp_bruce Member

    Messages:
    16,860
    Joined:
    Jun 7, 2007
    Location:
    Metro Detroit
    So how many years would I need to wait before I can safely eat it?

    [​IMG]

    Peace,
     
    EricPeterson likes this.
  20. aynirar27

    aynirar27 All You Need Is Rock and Roll Gold Supporting Member

    Messages:
    29,413
    Joined:
    Jul 15, 2011
    Location:
    Great Barrington, MA
    It was originally created for teh nuclear program, but scientists found its half life was too long.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice