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rrrADAM
Trad climber
LBMF
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Mar 15, 2011 - 10:13am PT
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Looks like background to me, but then I don't know the ambient doserates for where that counter is.
Thing is, most probably think it should read 0.
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bmacd
Social climber
100% Canadian
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Mar 15, 2011 - 10:36am PT
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get over yourself dude - insinuating most supertopians are stupid with remarks like that isnt very smart
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dirtbag
climber
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Mar 15, 2011 - 11:30am PT
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This is just so sad.
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Jan
Mountain climber
Okinawa, Japan
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Mar 15, 2011 - 11:54am PT
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A huge storm front is moving into Japan from northern China. The temperature has dropped ten degrees here in Okinawa and it's going to be below freezing for the next three nights in northern Japan, maybe even snow. Because of that I'd say that today was probably the last day for survivors to be pulled from the rubble.
The good news is that the wind will blow up to 70 mph from west to east for several days and push the radioactive particles out to sea.
There is now a floating debris field 100 miles off the coast of Japan which is a mile wide and 60 miles long. Eventually some of this will end up on the beaches of North America.
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Jan
Mountain climber
Okinawa, Japan
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Mar 15, 2011 - 11:57am PT
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Facebook in Japan has inserted an 8 paragraph announcement at the top of the newsfeed page of all customers in Japan. The first paragraph reads:
Please refrain from over-stocking supplies
Food and supplies are selling out from the stores in the Tokyo Metropolitan area, however this may cause in running short of supplies for the worst stricken areas. Japanese government has announced that there are enough supplies in stock. Please act calmly with patience.
The rest is about electricity rationing schedules.
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rrrADAM
Trad climber
LBMF
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Mar 15, 2011 - 12:12pm PT
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get over yourself dude - insinuating most supertopians are stupid with remarks like that isnt very smart My bad... It certainly wasn;t meant that way. What I meant was MOST people, think that it should be 0, since MOST people don't know that if they turn on a counter, it will click... What is important is counts per minute above background.
yea the thing is? Most are going to be deciding the fate of your industry.
DMT Yep... Which is why people should educate themselves about it, so they can make an 'educated' decision, right?
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bluering
Trad climber
Santa Clara, CA
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Mar 15, 2011 - 12:13pm PT
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A huge storm front is moving into Japan from northern China. The temperature has dropped ten degrees here in Okinawa and it's going to be below freezing for the next three nights in northern Japan, maybe even snow. Because of that I'd say that today was probably the last day for survivors to be pulled from the rubble.
God help them...
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rrrADAM
Trad climber
LBMF
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Mar 15, 2011 - 12:16pm PT
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A huge storm front is moving into Japan from northern China. The temperature has dropped ten degrees here in Okinawa and it's going to be below freezing for the next three nights in northern Japan, maybe even snow. Because of that I'd say that today was probably the last day for survivors to be pulled from the rubble.
Man, it's just one thing after another. I feel so bad, as Japan is a great proud nation. I loved the time I spent there way back when I was in the Navy. Good people, with a great culture.
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Brandon Lampley
Mountain climber
Boulder, CO
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Mar 15, 2011 - 12:24pm PT
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Is this generally correct. Maybe rrrAdam will check in
Probable partial meltdowns at multiple reactors.
Possible compromise of at least one reactor vessel.
Probable exposure and melting of used fuel in at least one storage pool.
Onsite conditions challenging, further meltdowns likely.
Dangerous radiation evident periodically within 20 to 30 K of facility.
Measurable but insignificant radiation out to hundreds of miles.
Said radiation levels likely to continue for days? weeks?
Local contamination likely to be persistent for years? decades?
Likely lots of folks there working to remedy the situation and exposing themselves to bad, bad stuff. Heroic on their part.
Rightly or wrongly, will put the brakes on any new nuclear power the world over. Maybe put pressure on to decomission older and/or geographically risk prone reactors the world over.
Hundreds of thousands of folks over there facing grim living conditions that have nothing to do with radiation. I feel for them.
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corniss chopper
climber
breaking the speed of gravity
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Mar 15, 2011 - 12:58pm PT
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Why the core can't be cooled when it gets too hot.
Departure from nucleate boiling
If the heat flux of a boiling system is higher than the
critical heat flux (CHF)
of the system, the bulk fluid may boil, or in some cases, regions of
the bulk fluid may boil where the fluid travels in small channels. Thus
large bubbles form, sometimes blocking the passage of the fluid. This
results in a departure from nucleate boiling (DNB) in which steam bubbles no
longer break away from the solid surface of the channel, bubbles dominate
the channel...(blocking coolant flow)
...Avoiding the CHF is an engineering problem in heat transfer applications, such as nuclear reactors, where fuel plates must not be allowed to overheat.
http://en.wikipedia.org/wiki/Nucleate_boiling
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Jennie
Trad climber
Elk Creek, Idaho
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Mar 15, 2011 - 12:59pm PT
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We receive high energy radiation from outer space...."cosmic rays" in the form of protons and helium nuclei. Much of this radiation is deflected by Earths magnetic field so cosmic ray radiation is more intense near the poles.
Gamma rays from the sun aren't significantly deflected by magnetic fields...(they are photons rather than heavy charged particles)
All are ionizing radiation that can damage living cells...
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Majid_S
Mountain climber
Bay Area , California
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Mar 15, 2011 - 12:59pm PT
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72 hours after ,the real problem starts to show up. Sanitation, fresh water contamination, pollution, bio hazard, ......
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rrrADAM
Trad climber
LBMF
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Mar 15, 2011 - 01:16pm PT
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Probable partial meltdowns at multiple reactors.
certain fuel damage, probable partial melting of some assembles
Possible compromise of at least one reactor vessel.
not likley, and from all I've heard, hasn't happened
Probable exposure and melting of used fuel in at least one storage pool.
EXTREMELY unlikley, if not impossible for the fuel in the spent fuel pool to even partially melt, and from all I've heard, hasn't happened
Onsite conditions challenging, further meltdowns likely.
yes, it's evolving and challenging, further fuel damage is possible, melting fuel is not likely
Dangerous radiation evident periodically within 20 to 30 K of facility.
not likely, unless all of the containment structures are breached, which is extremely unlikely, AND there is an explosive event sufficient to eject the material
Measurable but insignificant radiation out to hundreds of miles.
technically, yes, but it is due to radioisotopes vented that have blown, so it isn't all around, and dilutes as it travels... but that doesn't mean it won't scare people
Said radiation levels likely to continue for days? weeks?
see above... and it depends on the type, radioiodine has a short half-life, cesium has a long one
Local contamination likely to be persistent for years? decades?
again, only if all of the containment structures are breached, and something expells it through those breaches... otherwise, what's in containment (onsite) will stay in containment. what has escaped thus far is likely of no long term significance
And, there is a finite amount of this nasty stuff... If it is contained, it is concentrated. If it is dispursed, it gets diluted. Think getting water in your mouth at a pool, where someone pissed in it, vs having their piss in your mouth without being diluted.
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WBraun
climber
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Mar 15, 2011 - 01:25pm PT
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I'm on my way.
I asked what specially safety protective features they have for me.
They gave me a pair of sunglasses.
They said this is all I need as there may be a a bright glow but otherwise you'll be bomber.
Roger that!!!!
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Jennie
Trad climber
Elk Creek, Idaho
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Mar 15, 2011 - 01:25pm PT
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Isn't the Sun fusion?
This is the fission of uranium?
Iodine-131 and cesium-137 are products of uranium fission and both emit gamma rays and beta particles...Iodine-131 with half life of eight days and cesium-137 with half life of about thirty years.
Gamma rays are emitted both in nuclear fusion and the decay of radionuclides such as these iodine and cesium isotopes.
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Brandon Lampley
Mountain climber
Boulder, CO
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Mar 15, 2011 - 01:29pm PT
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Thanks rrrADAM... I think... gonna be careful at the gym pool today.
Hope folks over there can stay warm, dry, fed, and watered.
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rrrADAM
Trad climber
LBMF
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Mar 15, 2011 - 01:39pm PT
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The cesium is the biggest problem now? Adam?
No, the biggest problem is what is still happening at that nuke site, and what has been done to the infrastructure of the areas hit by the tsunami.
What is needed is power to the plants equipment, 1st and foremost, to keep the fuel cool, and operate other systems. Of the common radioisotopes that can be released, cesium is likely the worst, due to the quantities that can be released and it's halflife. But we haven't gotten anywhere near this level yet.
Let's not forget that humanitarian aid is way up there too, as people are sufferring tremendously, and the imediate needs of the people should be of immediate concern.
The needs of the nuke are much more focused, where as the needs of the people are much more broad, and people will start dying not from the nuke, but from lack of food, water, and shelter.
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