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Showing content with the highest reputation on 03/19/24 in all areas

  1. Wow, so much to unravel here. Yes. The scientific background was in the open. So it would be just a matter of time. And then the point Swansont mentioned: That is true, more or less. But Japan simply did not capitulate. So the war could have taken much longer, taking many lives of American soldiers. Yes, but only after Germany was defeated. Heisenberg was in charge. The infamous meeting between Heisenberg and Bohr in 1941, gave the latter the impression that the Nazis were making serious work of the atomic bomb, and brought this impression to the US. Yep. I have seen the 'atom cellar' in Haigerloch: Does not quite compare to Los Alamos, is it? I would not put my hand in the fire for this, but it surely was a reason: Truman said something like this about the Soviets and the atomic bomb: "Now we have a real hammer on those boys". Another reason might have been to have a 'real live test'. A hint for this is the second bomb. One of the A-bombs was a U-235, the other a plutonium bomb. Wouldn't it be interesting to compare their effects 'in the field'? About the capitulation of Japan: there was a struggle between the civilian government and the military. The government wanted to give up, the military wanted to fight until the bitter end. One of the struggling points was the position of the emperor. The US wanted an unconditional capitulation, the Japanese government found that the position of the emperor could not be discussed. In the end the Japanese government made a very unusual proposal: let the emperor decide. In the meantime the first atomic bomb was dropped. If this fact had an influence on the decision of Hirohito is not known, fact is that he chose to capitulate. His speech in which he called for the capitulation was recorded, to be brought to the Japanese radio studios. Radical militaries tried to steal the recording on its way to the radio station, but they did not succeed. Hirohito's speech was broadcasted, and Japan capitulated. And the US more or less let the emperor untouched. Had the US made it known that the emperor could stay earlier, Japan might also have capitulated earlier. Maybe the A-bombs would not have been necessary. Main source: Bert Röling, who was a.o. member of the International Military Tribunal for the Far East (also called the Tokyo Tribunal, similar to the Nürnberg Tribunal in Germany). Hmmm. Lise Meitner and Otto Frisch were hardly Nazis, they were Jewish and fled Germany in 1938. Otto Hahn: Fritz Strassmann: So four of the 'main characters' were definitely not Nazis. Equating 'German' and 'Nazi' is simply wrong, also during WWII.
    4 points
  2. The responses by members indicate that either you did not explain yourself very well, or, you posted nonsense/word salad. When you come back, I suggest not arguing against the 'nonsense/word salad' responses, but rather, take the time to elaborate on your explanation. Please clarify some of your non-standard terms; words have precise meanings in science and using them incorrectly results in perceived nonsense.
    1 point
  3. You owe me the price of a new irony meter, mine exploded after that.🤣 All of the parts after this:
    1 point
  4. Protons are nothing like electrons. We do know as much. In what sense is this "holonomic"? "Holonomic" means integrable, exact, it goes back to itself after a loop. I don't see anything holonomic here. I can't fathom what's Bohmian about it, or local/non-local, as the case may be, as no mention of how position variables function in the "theory" can be spotted. Summarising, it very much sounds like word salad with no maths underpinning it. No calculation, no formal-mathematical justification. What description?
    1 point
  5. @GeeKay the alleged values don't mean much and any mining attempts, if ever, are likely to start small and probably continue to have a lot of very high costs to recover before achieving profitability - and not much affect the market price. I am amongst the more pessimistic commenters when it comes to space but the resources in asteroids are real - notably Platinum Group Metals mixed in nickel-iron at 10's of parts per million (going by meteorite samples). Even the nickel-iron, raw and unrefined would be considered valuable here on Earth, just for the nickel content. Most things in space have no potential to make money but asteroid minerals are a real "prize" of enormous potential monetary value, so I think the interest will always be there. Yes, the differences in velocities are huge; most of any asteroid mining/refining operation would be making enough fuel/reaction mass for the rockets, which must have exceptional durability and long working life. That is probably the first test that needs to be passed - a rocket that can do a round trip between asteroid and LEO exclusively with "fuel" (and other consumables) produced out of asteroid resources. And do it over and over reliably with absolute minimum of ongoing supply from Earth. Probably not an M-type. We need to know what those rockets will run on and know if a target asteroid has it. Off the top of my head I would target C-type; going by carbonaceous meteorites they contain the target mineral - nickel-iron with PGM's mixed in - as nodules and grains within a softer carbonaceous material that also contains significant amounts of water. Can solar electric arc-jets use simple water for reaction mass? H2 + O2 chemical rockets present serious problems, including very large tanks as well as, ultimately, inadequate performance. I think things get harder if any rocket uses requires more exotic fuels, eg the Keck Institute of Space Studies proposal to capture a small asteroid and return in to near Earth space with a solar electric rocket using (if I recall) xenon for reaction mass. Seems very unlikely to find a source of xenon in an asteroid. Hydrazine is used with arc-jets and it seems possible (with water and a source of Nitrogen and equipment) to manufacture it, but water, even if less ideal, presents a simpler challenge to produce and store and use.
    1 point
  6. Strictly speaking, I mean the Weyl tensor, traceless Ricci tensor, and Ricci scalar. One can combine these in a multitude of ways, but these three are the true algebraically distinct curvature tensors.
    1 point
  7. @KJW. I understand that you regard my last few posts as too much of a waste your precious time to be worth responding to. But I trust that in turn, you will not object to me regarding your silence, particularly wrt the non-conservation of linear momentum in general gas collisions, as concessions to the arguments presented. Live long and prosper.
    -1 points
  8. Pure nonsense is not a logical response to a Holonomic 3D geometry. The Compton radius shows that electrons have a scattering radius just like protons. Please provide sane logical responses. Thanks.
    -2 points
  9. Your response is word salad. The described geometry has infinite information depth. It is a 3D geometry. Why would I have to specify position variables while describing a 3D geometry? I agree there is no math. Geometry is not math. I think it's clear from your response that you did not understand the description of the geometry, or you don't understand the difference between geometry and math. As far as electrons and protons being nothing alike, please Google the Compton radius.
    -3 points
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