exchemist
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Everything posted by exchemist
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No mine was the 100 legs and flies one. But seriously, did you hitch a lift on a dustcart down the Cowley Rd, in Oxford? Or moonlight from uni as a dustman? When was that? Sounds as if a 4 Yorkshiremen sketch could be coming on............... Come to think of it, there were Geordies around reading chemistry at my college. From Newcastle Grammar.
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What has 100 legs and flies?
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Fusion device (split from Shouldn't we give up on fusion?)
exchemist replied to ImplicitDemands's topic in Speculations
Why would robotics have anything to do with this? Most of the energy is released as neutrons, which would be absorbed in a blanket of material, most likely Li, surrounding the reactor and the heat thereby released would raise steam. I can't see any role for robotics in this. -
You can really get dragged into the weeds trying to react to individual random graphs generated to sow disinformation, unless you are an expert in the field. There’s a whole cottage industry peddling disinformation “talking points” and as soon as you knock down one they will come up with another. The question really is whether these people seriously believe all the climatologists are wrong, whereas they, with their barrack- room lawyer’s opinions, are right, or whether they think the climatologists are all - worldwide - engaged in some kind of conspiracy, and if so, to what end?
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What would be the type of units in which E is measured? Units of length? Or what?
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Could the airmen do anything to save the Boeing 737 Max
exchemist replied to PeterBushMan's topic in Engineering
The MCAS malfunction is not the main point in this case, though steps were taken after the crashes to make a malfunction less likely. The main issue of culpability is as I explained to you in my previous post. -
Could the airmen do anything to save the Boeing 737 Max
exchemist replied to PeterBushMan's topic in Engineering
All we need do is read the press to understand what happened. It was extensively reported. @Sensei's post, the 2nd in this thread, summarises it. Essentially it was a failure by the manufacturer to disclose information about an automated system that had been fitted. In effect, flight crew were -deliberately - not fully informed about the systems employed on the aircraft they were flying. This was done to avoid the cost and inconvenience of further training, but meant that when there was a malfunction in this "hidden" system, the crew were not equipped to take the right decisions. An appalling result of the way Boeing had come to prioritise financial performance over safety. This cultural failure has also been extensively reported in the press (at least in the Financial Times, which I read) and has quite rightly led to a change of top personnel at the company. It also revealed an unduly close relationship between Boeing and the US regulator for aircraft safety, a state of affairs known as "regulatory capture". There have been many examples of such "capture", across various industries around the world, and it practically always ends in disaster. Business people often resent what they see as bureaucratic "box-ticking" by inspection and supervisory regimes, and lobby politicians to slacken the oversight. It goes fine....until it doesn't, and then it's pointy finger time. -
Could the airmen do anything to save the Boeing 737 Max
exchemist replied to PeterBushMan's topic in Engineering
Thanks, very clear explanation. -
I note that ISROSET stands for the "International Scientific Research Organisation for Science, Engineering and Technology", which is an Indian "journal" that appears on Beall's List of potentially predatory journals: https://beallslist.net. So quite likely scammy and without competent peer review. Come back to us when your ideas have been published in a journal with some credibility.
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Could the airmen do anything to save the Boeing 737 Max
exchemist replied to PeterBushMan's topic in Engineering
How does this work? I'd have thought that the longer the engine pylon, i.e. the further below the centre of gravity (or rather, drag, I suppose) of the plane, the bigger would be the upward pitching turning effect, when the engines throttle up. So surely a shorter pylon, bringing the line of engine thrust closer to the centre of drag, would reduce this, wouldn't it? -
So do you mean, in effect, that it all hinges on how accurate a determination of λ can be made? In which case it is not really a method of calculating π, so much as a way of estimating it by physical measurements.
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OK, but looking at the equation in the OP, surely the value of the sum will depend on the exact value assigned to λ? Is λ then an exact number, i.e. a mathematical object with an exact definition, rather than a quantity derived from physical measurement?
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What is “ResearchGet” [sic]?
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Whut? You are making no sense whatever.
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OK so you are just waffling, as I suspected. So far as I know, no country has passed laws to prevent fusion research. I certainly can’t see why any legislature would do such a thing.
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What laws are you referring to?
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Hmm, but doesn't that make it a physical variable? Surely it has to have a particular exact value for the sum to yield a correct value for π?
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Well "ResearchGet" certainly sounds like a link to a load of malware! No thanks😁.
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What is λ?
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There are a lot of earth problems created by man.
exchemist replied to JohnDBarrow's topic in Ecology and the Environment
Overpopulation seems to me a debatable issue. How does one determine when the human population is "too much"? What does seem fairly sure is that the human population will naturally reach a maximum later this century, as rising standards of living, better education and more autonomy for women reduce the birthrate. It's already below replacement level in many developed countries. -
How does quantum mechanics work? (A new Hypothesis)
exchemist replied to Wigberto Marciaga's topic in Speculations
The term "quanta" was invented by Einstein, who got his Nobel Prize for his foundational work on quantum mechanics (Photo-Electric Effect). Einstein was all over quantum mechanics. Bose-Einstein statistics? Einstein transition probabilities? As for not being able to contradict your proposal, "Prove me wrong" has been the cry of the crank, down the ages. 😉 -
Yes of course they would. In practice this state would never be reached, as government policies would be adopted by degrees to maintain a life for the population that avoided civil unrest.
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Apart from vacuuming and mopping floors, there is still the cleaning of ovens, cookers, cupboards, basins and toilets, dusting, polishing metalware and so on(I have a Brazilian cleaning lady who does these things for me.) Also ironing. So there are still things to do without getting into food safety critical tasks. But my cleaning lady does this in 3hrs per week. So very poor use of a highly expensive robot, I would agree, unless it is shared among numerous households.