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View Diary: Fukushima: Stage Two (232 comments)

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  •  It's a technical term (0+ / 0-)

    Spontaneous fission occurs all of the time in nature. It's nothing to worry about. As a comment below mentions, any trace amounts of radioactive xenon that have been detected have mostly likely resulted from the spontaneous fission of curium.

    The important thing to consider is whether any fissions that are occurring are generating enough neutrons that are able to cause the same number of fissions, or more, before they are absorbed (without fission) or leave a region of fissionable material. That is, it is important to know whether a "sustained fission" reaction is occurring, because the spontaneous fission doesn't do squat.

    In other words, it's important to know whether something has gone cricical—a term derived from the idea that the critical number of neutrons have been produced to keep the reaction going. If the material is not critical, then any reaction that had been induced dies away very quickly, within seconds.

    TEPCO has concluded that there was no criticality, and given the numbers that have been reported in the media, I have no reason to doubt them. We're talking trace amounts, which is something that you would not expect in some of the conspiracy-theory scenarios that have been floating around.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
    -- Albert Einstein

    by bryfry on Thu Nov 03, 2011 at 11:32:48 AM PDT

    [ Parent ]

    •  For those semi-interested (3+ / 0-)
      Recommended by:
      Wheever, ozsea1, BradyB

      in what this apologist is saying, please recall the many news reports, TEPCO/NISA updates, and graphs demonstrating ongoing 'flash fission' events all over the place in Fukushima since the very beginning. Thus there has always been iodine, xenon, krypton and every other fission product in measurable amounts at the reservation. TEPCO admitted just day before yesterday that iodine has always been one of the four primary contaminates being released to the ocean.

      To say they can now differentiate the 'normal' fission product levels from this piddly amount of fission products from the very same 'spontaneous' fission events is poppycock. Purely and simply.

      •  Yawn (0+ / 0-)
        TEPCO admitted just day before yesterday that iodine has always been one of the four primary contaminates being released to the ocean.

        The fission product I-129 has a half-life of over 15 million years. Why are you surprised to find iodine?

        What you call "poppycock," more educated people call "science."

        Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
        -- Albert Einstein

        by bryfry on Thu Nov 03, 2011 at 12:13:04 PM PDT

        [ Parent ]

        •  Semi-amazing. (2+ / 0-)
          Recommended by:
          BradyB, Wheever

          No, it's I-131. Along with the cesium sisters and everything else.

          •  Yes, I see what you mean (0+ / 0-)

            From your link:

            IRSN also found large quantities of iodine 131, though it does not pose any threat due its very low 8-day half-life. Any iodine still found will not be radioactive by this point.

            You were saying?

            Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
            -- Albert Einstein

            by bryfry on Thu Nov 03, 2011 at 12:40:42 PM PDT

            [ Parent ]

            •  She was saying (2+ / 0-)
              Recommended by:
              jeanette0605, Russgirl

              that it showed there was fission in the last 8 days.

              Your point?

              The fission product I-129 has a half-life of over 15 million years. Why are you surprised to find iodine?

              Mere diversion. It's I-131.

              Corium's in the ground, motherfucker. Eat it up yum.

              "'club America salutes you' says the girl on the door/we accept all major lies, we love any kind of fraud"--The Cure, "Club America"

              by Wheever on Thu Nov 03, 2011 at 03:09:41 PM PDT

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              •  Oh really? (0+ / 0-)
                She was saying that it showed there was fission in the last 8 days.

                And she deduced this from an article that quotes a report of estimated releases "from March 21st to mid-July"?

                Apparently, you didn't read the article either.

                BTW, are you really so scientifically illiterate that you think that a half-life of eight days means that all of the material disappears after eight days?

                Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
                -- Albert Einstein

                by bryfry on Thu Nov 03, 2011 at 03:38:48 PM PDT

                [ Parent ]

                •  Corium is still in the ground (0+ / 0-)

                  Just like you said it wouldn't be. So, y'know, clearly you know what you're talking about.

                  "'club America salutes you' says the girl on the door/we accept all major lies, we love any kind of fraud"--The Cure, "Club America"

                  by Wheever on Thu Nov 03, 2011 at 07:00:51 PM PDT

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                  •  I have no freakin idea (1+ / 1-)
                    Recommended by:
                    kumaneko
                    Hidden by:
                    The Werewolf Prophet

                    what you're talking about.

                    I said what?  Please explain.

                    And while you're at it, perhaps you can share with us the information that you have used to you draw your conclusions about where the "corium" is.

                    At this point, I can only conclude that you're just making shit up.

                    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
                    -- Albert Einstein

                    by bryfry on Thu Nov 03, 2011 at 07:58:39 PM PDT

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    •  Pro nuke troll - what took you so long to appear? (3+ / 1-)
      Recommended by:
      Joieau, Andhakari, The Werewolf Prophet
      Hidden by:
      davidwalters
      in what this apologist is saying,

      nothing more than nukes, nukes and more nukes.

      Whoever is paying you isn't getting their money's worth.

      Let me issue and control a nation's money and I care not who writes the laws." ~ Mayer Amschel Rothschild, 1790

      by ozsea1 on Thu Nov 03, 2011 at 12:13:47 PM PDT

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    •  That's funny, bryfry. (4+ / 0-)

      Because, yeah, just spontaneous fission isn't a "technically" criticality unless it keeps going, therefore nothing is happening, right? And all the I-131 that's been detected all over the place all summer is, what a healthy and delicious addition to your food chain? It's natural? FAIL.

      At some point you're going to have to give up. During the course of this disaster you've been falling farther and farther behind the curve with your spin, and each step that follows the disaster scenario you've been decrying as sensationalist turns out to be just what us "sensationalists" (read knowledgeable realists) were predicting.

       Nothing you have said has meant anything, because this disaster unfolds whether you're spinning or not, no matter how you spin it, no matter what, no matter how you try to catch us out on "technicalities." What is happening now some of us have been saying for months was inevitable.

      TEPCO is lying. TEPCO has always been lying. Now Even TEPCO is beginning to realize that can't hide the magnitude of this disaster much longer, hence the start of the new and (un)improved news dump.

      This is the greatest man-made disaster in history, and in the end it will make Chernobyl look like a thimble.

      "'club America salutes you' says the girl on the door/we accept all major lies, we love any kind of fraud"--The Cure, "Club America"

      by Wheever on Thu Nov 03, 2011 at 12:19:31 PM PDT

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      •  Look, it's not my fault (0+ / 0-)

        that you don't have the background to understand these technical issues. Go blame your science teachers for failing to do their job.

        So everybody is lying, eh? Everybody is lying except the person who doesn't understand that spontaneous fission is a natural decay process for heavy unstable isotopes.

        Yeah ... that's a convincing argument. Let me go have a lobotomy and I might just buy it.

        Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
        -- Albert Einstein

        by bryfry on Thu Nov 03, 2011 at 12:50:53 PM PDT

        [ Parent ]

        •  Ha ha ha. (4+ / 0-)

          Guess what? Corium is still in the ground, right where Kaku taught me it would end up, in 1976, irrespective of your dismissal of my education and background. Not too long ago, you were declaring that would never happen.

          Not everyone is lying, dude, just the entire Nuclear industry and their apologists. Ha ha ha.

          "'club America salutes you' says the girl on the door/we accept all major lies, we love any kind of fraud"--The Cure, "Club America"

          by Wheever on Thu Nov 03, 2011 at 12:58:09 PM PDT

          [ Parent ]

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