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#1 |
∂2ω=0
Sep 2002
República de California
5×2,351 Posts |
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By way of reference, here are links to previous installments of this thread series: 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009 and 2008.
-------------------------------- How Bankers Became the Top Exploiters of the Economy | Michael Hudson for Counterpunch For your longer-weekend-reading pleasure - Interview with the always-great Michael Hudson. A few bugs in the (apparently auto-rendered and imperfectly edited) transcript, e.g. 'self-caring' instead of 'self-curing' in the paragraph on Schumpeter's 'creative destruction' hypothesis, 'ruler' instead of 'laborer' in the bit about the pyramid builders, and corporate 'raters' in place of 'raiders'. Also, in the part where MH talks about the economics of atomic power, I think he means 'spent' rather than 'depleted' uranium, since the latter is leftover from U-enrichment and not particularly toxic compared to the post-reactor spent stuff. (In fact the military loves DU to make penetrating projectiles out of - when one of those fragments on impact and even burns it does great increase the toxicity, but still nowhere near that of spent fuel.) The writings of the few economists I have real respect for, like Hudson here and the late John K. Galbraith a half-century ago, convince me that it should be illegal to grant an economics degree without at least half the total coursework consisting of economic history from ancient to modern times. They could throw the advanced maths out to make room for that, since as Hudson notes, mainstream economists deploy mathematics overwhelmingly to deceive and obscure their own bogus assumptions in a fog of pseudoscientific flummery and haute-credentialism. As Galbraith himself famously said, "In the case of economics there are no important propositions that cannot be stated in plain language." (A fine related link on succinctness: J.K. Galbraith on the art of good writing.) Last fiddled with by ewmayer on 2017-03-19 at 21:46 Reason: add jkg quote |
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#2 |
"Tilman Neumann"
Jan 2016
Germany
13×41 Posts |
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"When consultants and engineers told Tepco that the plant would be unsafe, the managers overruled them. They’re in business to make money for their stockholders. Milton Friedman said that the obligation of corporate managers is to make money for the stockholders, not society. So for them, Fukushima was a success. They made money all these years without having to spend the extra money it would have cost to build a plant and its backup generators safely."
Apply that to the debate about DU ammunition. US/UK military loves it - the rest of the world hates it. |
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#3 | |
Feb 2017
Nowhere
13×479 Posts |
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Spent reactor fuel is a witches' brew of radioisotopes, some of them fission fragments with relatively short half-lives. Spent fuel rods are often kept at the bottom of large pools of water in part to dissipate the heat they generate. There are also isotopes of uranium in spent fuel that "crap up" the reactor. In theory, spent fuel could be "reprocessed," but in practice this would (as I understand it) create its own set of very nasty problems. Depleted uranium (DU) is so called because it is depleted of its natural allotment (0.7% if memory serves) of the fissile isotope U-235, the separated U-235 going to "enrich" the uranium used as reactor fuel. DU is desirable for "sabots" (large slugs that punch through armor) because it is dense (tungsten is also so used for this reason), but DU has the added attraction mentioned above of being highly reactive, so likely to burn fiercely after a supersonic collision with armor. DU is (or at least used to be) obtainable fairly cheaply, as there aren't as many other uses for it as there are for tungsten, which among other things is a component of some kinds of steel. I have a vague recollection of reading that DU was also used on commercial aircraft for "balancing weights," which could be moved to compensate for unbalanced loading of cargo or passengers on the plane. I sometimes wondered if this was the case for the planes that were crashed on 9/11. There is, of course, a distinction between radioactivity and chemical toxicity. DU (U-238) is chemically toxic if it gets into soluble compounds that you ingest. Its radioactivity is fairly low (half-life is about 4.5 billion years, or approximately the present age of the Earth according to current science). As an alpha emitter, it presents very little hazard if it is outside the body (your skin will stop alpha particles), but if it gets inside you (say, by breathing in uranium-oxide dust, or ingesting uranium compounds), it does present a radioactive hazard as well as a possible toxic risk. One proven use for U-238 is as a source material for creating the well-known fissile isotope of plutonium (Pu-239). If a U-238 nucleus absorbs a neutron, it becomes unstable and kicks out two anti-electrons (positrons), thereby becoming a Pu-239 nucleus. (A much "hotter" but non-fissile isotope, Pu-238, is used as a heat source to generate power on space probes.) Last fiddled with by Dr Sardonicus on 2017-03-19 at 14:42 |
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#4 | |
"Kieren"
Jul 2011
In My Own Galaxy!
2×3×1,693 Posts |
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Last fiddled with by kladner on 2017-03-20 at 00:30 Reason: more rant, and links |
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#5 |
∂2ω=0
Sep 2002
República de California
5·2,351 Posts |
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@Dr Sardonicus: Thanks for the added material - a fascinating subject in its own right. (But I believe you intended "kicks out two electrons".)
[For the non-physics-steeped readers: the 239U92 formed by said neutron capture undergoes a double beta decay (which can refer to either e- or e+ emission but in this case it's the former variety), and also in sequential rather than all-at-once fashion - step 1 converts a neutron into a proton and thus yields a Neptunium-239 nucleus, which subsequently (with a half-life of 2.3 days) decays via a second electron-beta-decay to relatively stable Plutonium-239. The positronic version of beta decay takes one down the atomic-number ladder rather than up. In standard nuclear-reaction symbology, β- and β+ are used to differentiate between the 2 forms of β-decay.] |
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#6 | |
Feb 2017
Nowhere
13×479 Posts |
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Heck I know that! ![]() BTW, yet another use for DU is in armor/shielding. Again, because it's dense (19.1 g/cc), much denser than lead (11.3g/cc), and nearly as dense as tungsten (19.3g/cc). |
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#7 | ||
"Victor de Hollander"
Aug 2011
the Netherlands
32×131 Posts |
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There is such a reprocessing site in France (La Hague) and there is controversy about how much radiation it releases. Quote:
https://www.wired.com/2013/09/plutonium-238-problem/ |
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#8 | |
∂2ω=0
Sep 2002
República de California
5×2,351 Posts |
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One last note (from me) on the Hudson piece - In estimating the true economics - i.e. factoring in the costs of any attendant nonrenewable-resource-depletion and environmental harms - of any form of energy production, it's become clear we need to not just focus on obvious harms such as radioactive waste/disaster for nuclear, air pollution for fossil fuels, and manufacturing inputs (including energy use) and processing waste products for 'green' technologies (e.g. manufacture of solar panels and installations, and batteries for power storage). For example, it's become clear over the past half-century that even 'clean' FF power such as 'clean coal' and natgas have a major environmental cost not accounted for during their rise to prominence: global warming, which has good odds of ramping up into an existential threat for humankind (and other-living-kind, as well) in the not-too-distant future. CO2 is currently considered the primary culprit, which led to a boom in natgas development and deployment, but as CH4 is an orders-of-magnitude-more-potent greenhouse gas than CH4, that may well prove to have a 'cure worse than disease' development.
------------------------------------- Going After the Opioid Profiteers | naked capitalism Quote:
See esp. the comment by reader 'Dave'. |
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#9 | |
"Kieren"
Jul 2011
In My Own Galaxy!
27AE16 Posts |
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I'll just put this here, as it expresses the utter futility I feel in pointing out that which should be obvious.
http://www.informationclearinghouse.info/47417.htm One example: Quote:
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#10 | |
∂2ω=0
Sep 2002
República de California
5×2,351 Posts |
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Ben Bernanke, in Denial? "When Growth is Not Enough | naked capitalism |
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#11 |
"Kieren"
Jul 2011
In My Own Galaxy!
2×3×1,693 Posts |
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Don't mind at all. Thank you. I had not thought of this thread.
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