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Originally posted by Blazer
A meltdown doesn't create a nuclear explosion and mushroom cloud like a bomb. While there is sure to be some steam and smoke involved, a meltdown is simply that - the fuel becomes so hot that it melts through the container and you get a hot slag of molten fuel rods that usually end up in a concrete basin underneath the reactor.
A meltdown is bad because the material is then outside of the containment vessel and thus exposed and can easily spread to the surrounding environment.
Until the containment vessel has been breached there is no full "meltdown". The neutron beams being reported (last I read 13 distinct detections) are an indication that there are possible small leaks in the containment vessel. This does not mean there is a meltdown, just that if there are leaks, more radiation could be released.
Originally posted by TruthWillPrevail
Originally posted by Blazer
A meltdown doesn't create a nuclear explosion and mushroom cloud like a bomb. While there is sure to be some steam and smoke involved, a meltdown is simply that - the fuel becomes so hot that it melts through the container and you get a hot slag of molten fuel rods that usually end up in a concrete basin underneath the reactor.
A meltdown is bad because the material is then outside of the containment vessel and thus exposed and can easily spread to the surrounding environment.
Until the containment vessel has been breached there is no full "meltdown". The neutron beams being reported (last I read 13 distinct detections) are an indication that there are possible small leaks in the containment vessel. This does not mean there is a meltdown, just that if there are leaks, more radiation could be released.
Or just the used rods in the containment tank (due to lack of water) are involved. They would give off the same signature. This is actually more like at the moment as the time from the quake to date, those rods would be at a critical point. If it were a breach in the containment vessal, the levels would steadly increase, not fluxuate as they have been, and by this time would be ratiating much higher levels.
Originally posted by FlyInTheOintment
reply to post by Wolfenz
Are you smoking something? I struggled to understand the narrative of your post, and decided at the point of Mighty Mouse that you were offering yet another example of why my comments on page three are very relevant in this thread. Show some respect, and stop filling up the pages of this (or any) thread with stupid nonsense (it does nothing to edify or educate anyone, and is in fact downright insensitive/ rude).
Sheesh.
[9:30 p.m. Monday ET, 10:30 a.m. Tuesday in Tokyo] High levels of radioactive substances have been found in seawater near the damaged Fukushima Daiichi nuclear power plant, its operator, Tokyo Electric Power Co. said Tuesday. Levels of iodine-131 in the seawater were 126.7 times higher than government-set standards, the electric company said on its website. Its monitors detected caesium-134, which has a half-life of about two years, about 24.8 times higher than the government standards. Cesium-137 was found to be 16.5 times higher than the standard. The electric company detected these levels in seawater 100 meters (328 feet) south of the nuclear power plant Monday afternoon. Radioactive particles disperse in the ocean, and the farther away from the shore a sample is taken, the less concentrated the contamination should be. Because of the huge amount of dilution that happens in the ocean, there's not much chance of deep-water fish being tainted, said Murray McBride, a professor at Cornell University, who studies crop and soil sciences.
8:29 p.m. Monday ET, 9:29 a.m. Tuesday in Tokyo] The U.S. military is considering the mandatory evacuation of thousands of American troops and their families in Japan out of concern over rising radiation levels, a senior defense official said, according to CNN's Chris Lawrence. The official, who did not want to be on the record talking about ongoing deliberations, says there are no discussions to evacuate all U.S. troops across the country. The talks have focused exclusively on U.S. troops in Yokosuka, just south of Tokyo, the official said. Yokosuka is home to America's largest naval base in Japan.
Reporting from Tokyo— The first pitch of Japan's baseball season has been pushed back so that people don't waste gasoline driving to games. When the season does start, most night games will be switched to daytime so as not to squander electricity. There'll be no extra innings.
Originally posted by XtraTL
Whether or not there has been or will be a full meltdown remains to be seen, and I have no opinion on that.
But what does it mean "Neutron beam observed"?
That's clearly something someone made up because it sounded cool and dramatic.
How does this get on the front page of ATS? Didn't anyone put "neutron beam" into a search engine to see what one is? A neutron beam is a piece of equipment used for science experiments.
Originally posted by Danjya
Anyone following the weather patterns and the implications of a possible radioactive cloud moving in various directions? Any scenarios/computer-generated models you know of, with possible dates and degrees of contamination danger?
Originally posted by CastleMadeOfSand
Where is the Nuetron beam? Did I miss it?
What's with the 80's music? Between this thread and this one:www.abovetopsecret.com...
I feel like a kid again.
Is there an end in sight? I feel terrible sitting here with internet, air conditioning, electricity, water etc... , when all this stuff is happening right now.
......strange days indeed.
Originally posted by dragonridr
reply to post by L.HAMILTON
I'm skeptical of this report for a couple of reasons one that means the reactor is still operating. Now according to there procedures the boron rods dropped the minute the earth quake started. This would stop the fission process and no neutrons would be created.And finally how are they detecting this beam In a lab you have to use a scintillation detector just to see it. If the reactor core was breached this beam wouldn't move or disapear provided it would create a beam in the first place which is also unlikely. How ever if against all the laws of physics it actually occured the reactor core then is breached and you have more to worry about then a beam. At that point you have a bomb and we should be seeing a mushroom cloud with a live reactor with a breach. .
Wednesday 23rd March Fukushima 70 kilometre contamination levels twice as high as Chernobyl Permanent Control Zone. Honshu should be evacuated. The IAEA website yesterday revealed beta-gamma contamination measurements taken between 35 and 68 km from Fukushima. The results ranged from 0.08 to 0.9 MegaBecquerels per square metre (MBq/m2). The Chernobyl Permanent Control Zone was contaminated up to 0.55 MBq/m2. The highest level of contamination classified after Chernobyl was greater than 1.48 MBq/m2. The data for Chernobyl were for Caesium and the same is probably true for the Fukushima data. All official agencies are conspicuously silent about the alpha-emitters Plutonium and Uranium. We remain deeply concerned about this lack of information.
Cancer in Sweden following Chernobyl is a stark warning for Japan A cautious but careful study [ref] in northern Sweden polluted by Caesium and Uranium fuel particles showed cancer increased by 11% in the ten years following the accident. The level of fallout in that part of Sweden was 0.1 kBq MBq/m2. If we assume that cancer increases linearly with the level of fallout, the areas of Japan affected at 0.9 MBq/m2 may experience increases of 90%. We recommend that the public within 150km should leave the area immediately.