Japan Earthquake | Page 1012
@dean I remember they said something like graphite doesn't burn like coal..by Jim 5/7/2011 1:38:04 AM
@dean : but wouldn't a prompt criticality explosion produce an excessive amount of radiation and heat ?by Edano 5/7/2011 1:38:48 AM- To this day there is not a consensus about Chernobyl, what chance we have with fukushima is slim and none. They'll be debating this forever.by Jim 5/7/2011 1:39:52 AM
www.osti.gov write up on prompt criticalityby dean 5/7/2011 1:40:53 AM- @Nancy : it's still hard to believe. wouldn't that afford immediate countermeasures ?by Edano 5/7/2011 1:41:53 AM
- @Edano What I've read says yes, blinding flash and heat, followed by death.by Jim 5/7/2011 1:42:01 AM
- @Jim : the destruction would be worse in that case, i assume. melted structures, burns ....by Edano 5/7/2011 1:44:28 AM
- well, like hieroshima, more or less.by Edano 5/7/2011 1:45:09 AM
@Edano The people on the ground have known the building has issues. In their "to-do list" was to put steel or concrete framing under the SFP because they were stating weeks ago that the remaining building is not structurally sound. They have made no attempts to get inside 4 either. I am not sure what they could do to shore it up with the level of access they have. They might be able to put in some steel to hold back the lower part of the seaside wall. But no real way to do anything about the other wall. I have not heard more either way about it.by Nancy 5/7/2011 1:46:41 AM- yes on the high gama and beta radiation and tremendous release of energy and heatby dean 5/7/2011 1:47:23 AM
- @dean Whew, that's too invovled to just scan, but it seems that Zi plays a role as a catalyst also.by Jim 5/7/2011 1:47:41 AM
- so we did not see a prompt criticality explosion in #3, as gunderson assumes ?by Edano 5/7/2011 1:48:22 AM
- @Edano I think he's trying to over-simplify so much that it loses meaning.by Jim 5/7/2011 1:50:54 AM
- oxymoron sorryby Jim 5/7/2011 1:51:34 AM
- then back to the hydrogen from drywell theory.by Edano 5/7/2011 1:53:01 AM
- that was a techincal read Jim.. my point was.. prompt criticalities are very very complex from a nuclear physics standpoint.. gunderson tried to word thing in a way of simplistic understanding. complicating the whole incident was combinations of hydrogen pockets which were likely on the brink of exploding.by dean 5/7/2011 1:54:01 AM
- @Edano Dean and I did a quick and dirty calc and it loked like the equivalent of ~67 tonnes of TNT in that explosion. Sounds about right to me.by Jim 5/7/2011 1:56:17 AM
Ohio gozaimasu from Hiroshimaby bo 5/7/2011 1:56:22 AM- @bo Ola!by Jim 5/7/2011 1:56:49 AM
- @dean All that was required was a little O2, it was already ready.by Jim 5/7/2011 1:57:46 AM
- I think what we need to confirm the leaning reactor 4 is an image from inside the plant dated May 5 or later. It could be a photo of something else as long as 4 is in the background.by Nancy 5/7/2011 1:58:05 AM
- hi Bo!by Nancy 5/7/2011 1:58:13 AM
- and a little sparkyby Edano 5/7/2011 1:58:29 AM
- @Edano probably radiation flux was enough.by Jim 5/7/2011 1:59:26 AM
- @Nancy Do we have such an image?by Jim 5/7/2011 2:00:29 AM
- @all has the #4 lean been mentioned yet by tweeters or the press?by bo 5/7/2011 2:03:03 AM
- the explosion from a prompt critical won't equate to the bomb dropped to end the war.... the SL-1 prompt critical put the reactor on a 4 millisecond period ie: time for the reactor power to increase by a factor of "e" and resulted in enough energy to cause the water in the core to quickly convert to steam and expanded, the 26,000-pound (12,000 kg) reactor vessel jumped 9 feet 1 inch (2.77 m), leaving impressions in the ceiling above.by dean 5/7/2011 2:03:20 AM
- @bo physics forum. I have not checked twitter today.by Nancy 5/7/2011 2:03:37 AM
- well.. anyways.. I'm still working under the assumption that #3 was a combination which resulted in what was seen...by dean 5/7/2011 2:05:12 AM
@dean Leaving an operator's body in the ceiling above, too, iirc.by marie rich 5/7/2011 2:05:12 AM- now.. off to figure out the leaning reactor of fukushima whewwwwwby dean 5/7/2011 2:05:26 AM
- @dean i can go with that, and have believed it. It was both, I just took issue with Gunderson's kintergarten explanation.by Jim 5/7/2011 2:07:41 AM
- we could need a satellite image. i tried google earth, but the image seems to be old. what was the company that supplies satellite imagese ?by Edano 5/7/2011 2:08:49 AM
- indeed marie, those were sad days which happened a few years before I started my career.by dean 5/7/2011 2:08:57 AM
- what is that in the sky on tippycam?by marie rich 5/7/2011 2:09:19 AM
- chk it out- ufoby marie rich 5/7/2011 2:09:45 AM
- @marie rich the hourly or the live and where in the image?by Nancy 5/7/2011 2:10:54 AM
- @Edano digital globeby Nancy 5/7/2011 2:11:15 AM
- @Nancy ; yep ill take a look.by Edano 5/7/2011 2:11:58 AM
- little white dashes and orbs- gosh that sounds crazy. tippyliveby marie rich 5/7/2011 2:12:04 AM
- @marie rich : scrnshot pls.by Edano 5/7/2011 2:12:50 AM
- don't know hoe to do that, sorryby marie rich 5/7/2011 2:13:34 AM
- I had to put it full screen but see it. will see if I can grab one, it goes pretty fastby Nancy 5/7/2011 2:13:48 AM
- angie sees them tooby marie rich 5/7/2011 2:13:58 AM
- no digital globe last image march 18.by Edano 5/7/2011 2:15:16 AM
Japan Earthquake | Page 1012
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