The Iranians could probably had avoided this accident if they had read Feynman, but most of the workers were probably were instructed not to ever read anything written by a Jew or an atheist. Feynman was born to Jewish parents but described himself as an atheist, so he was not on the approved reading list. Too bad - this accident (if it was one) was probably predictable if the workers knew the true level of enrichment of materials they were hiding from inspectors.
http://blogs.telegraph.co.uk/news/concoughlin/100200345/is-irans-mystery-nuc lear-explosion-too-good-to-be-true/ In nuclear facilities there is a direct correlation between safety and secrecy. When you are hiding enriched uranium, it can be dangerous in non-obvious ways. If you tell your workers that this facility "does not have anything over 20% enrichment", they will assume it to be true, and use that in safety calculations for such mundane things as waste, lathe turnings etc. If you read Feynman's book he tells of being sent to Oak Ridge during the Manhattan project years to find that safety sadly wanting, due to too much secrecy. Highly enriched waste was being stored unattended and a massive explosion could have set back the effort for years if not forever. RF: "In my opinion it is impossible for them to obey a bunch of rules unless they understand how it works. It's my opinion that it's only going to work if I tell them, and Los Alamos cannot accept the responsibility for the safety of the Oak Ridge plant unless they are fully informed as to how it works!" The lieutenant takes me to the colonel and repeats my remark. The colonel says, "Just five minutes," and then he goes to the window and he stops and thinks. That's what they're very good at -- making decisions. I thought it was very remarkable how a problem of whether or not information as to how the bomb works should be in the Oak Ridge plant had to be decided and could be decided in five minutes. So I have a great deal of respect for these military guys, because I never can decide anything very important in any length of time at all. In five minutes he said, "All right, Mr. Feynman, go ahead." "I sat down and I told them all about neutrons, how they worked, da da, ta ta ta, there are too many neutrons together, you've got to keep the material apart, cadmium absorbs, and slow neutrons are more effective than fast neutrons, and yak yak -- all of which was elementary stuff at Los Alamos, but they had never heard of any of it, so I appeared to be a tremendous genius to them." "The result was that they decided to set up little groups to make their own calculations to learn how to do it. They started to redesign plants, and the designers of the plants were there, the construction designers, and engineers, and chemical engineers for the new plant that was going to handle the separated material...." How do you say "oops" in Farsi?
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