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swansont

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Everything posted by swansont

  1. This isn’t a legal issue, it’s science You’re suggesting that eyewitness testimony isn’t a thing in criminal prosecution, and nobody has been convicted because of it, which is an unserious argument.
  2. The data gets recorded, so it has not vanished, and since one describes how the experiment is done, others can replicate it. The Nobel committee wouldn’t worry about photons being destroyed. They aren’t stupid.
  3. Repeating fanciful stuff like this without any supporting documentation doesn’t exactly lend credibility to any claims you make. It’s likely one of those things that has a tiny grain of truth to it that kept getting modified with each retelling, like the ‘whisper’ game, until you end up with this claim. What’s telling is the credulous telling of it, just like the blind acceptance of other things. Skepticism is required here, and this doesn’t pass the sniff test. What’s much more likely, to me, is that this method appeared in a document that was classified, and remained classified for some time because it contained other information that still needed to be classified, or there is some other reason for not declassifying (like some statute that says you can’t declassify the document for 100 years) that has nothing to do with this specific item. If this were top secret, who broke federal law to point out that it’s classified? edit: The last time this came up I pointed out that the document was declassified in 2011. You should update your story. Further, it's probably this one https://www.cia.gov/readingroom/docs/CIA-RDP11X00001R000100010003-7.pdf Item 38. The document is confidential, not top secret. There are 50 items in it, and any one of the other 49 might be the reason the document was not declassified sooner. But saying that lemon-as-invisible-ink is classified is like saying "the" is classified because it appeared in a classified document.
  4. That's the problem of cooking something that's frozen. One section gets defrosted first and the heating gets much more efficient and cooks while the rest is still frozen.
  5. Plenty of non-scientists gather data that's useful (amateur astronomy, citizen science projects like bird counting.) It's not controlled conditions - these aren't done in a lab - it's the rigor of gathering the data e.g. instead of a random snapshot, it's multiple pics from different vantage points, with calibrated distances and background shots for reference. The problem with existing pictures is that there is almost no data you can get from them. The military data you don't have access to wasn't collected under controlled conditions, either. Again, "qualified by science" and who collects it isn't inherently the issue (unless you're a known charlatan)
  6. I will add to this that all of these methods transfer heat, from outside-in. Microwaves do not do this, as MigL and JCM have described. It’s not outside-in, but it is depositing energy to the interior, and somebody probably decided to describe that as inside out. Which it kinda-sorta is, but not necessarily center-out. The poor pop-sci description persists because zombie descriptions are hard to kill, when they are so easy to repeat.
  7. You didn’t say re-check, you said confirm. The confirmation is with which instrument detects the photon. The photon no longer exists by the time you know this. I have to say that your line of inquiry smacks of bad faith and has gotten rather tiresome. People have sincerely engaged with you and given you good information. Their reward has been a bunch of attitude.
  8. So go get your own data. There are a lot of national security possibilities for the military to not share their data; that just seems like a convenient scapegoat. I thought there was a TV show about some hotspot for UFO sightings. Where’s all the data from those sightings? (the obvious candidate answer is that it’s fiction, strictly for the suckers. Actual data would wreck the illusion)
  9. How can one tell if a photon has passed through a lens? Does the lens itself indicate this? Nobody has claimed this happens.
  10. You knew and yet you asked anyway As I stated previously, one method is spontaneous parametric down-conversion. It's a two-photon decay in an atom. Along specific paths the photons will be entangled (yes, the scientists know which paths; you can google this if you want more info) You couple the light into a fiber with a lens. News flash: any detection of a photon destroys it. You only "have" the photon for as long as it's bouncing around in your optics.
  11. Good god you are being obtuse. The room lights are the extraneous photons. They don’t give you the entangled photons.
  12. Oobermensch has been banned for being oober-insufferable
  13. This assumes there are light sources, and that the scientists are so clueless as to not realize this. You don't even give them the benefit of doubt that they'd realize this and turn light sources off, even though I already told you that one would do this. (Plus the fact that if you're doing this with an optical fiber, it's really hard for extraneous light to get in) And possibly enclose the experiment, if needed. I've had setups that did this, so the room lights could be on. Light doesn't get into the box. So I will ask again, what light? I'm telling you there isn't any.
  14. ! Moderator Note Off-topic. This isn’t the place to whine about how you’ve been wronged.
  15. You really should use a search engine for such basic inquiries https://www.ligo.caltech.edu/page/what-are-gw https://en.m.wikipedia.org/wiki/Gravitational_wave
  16. You haven’t explained where these trillions of photons have been conjured from.
  17. Fourth power of the temperature (Stefan-Boltzmann law), but the net power depends on what the reservoir is radiating back at the object. You can’t spontaneously transfer heat to a body at a higher temperature (there has to be work done), per the second law If you have an object at room temperature, it will not transfer heat to the room (regardless of the actual temperature of the room) because there must be a difference in temperature to transfer heat. True for radiation, conduction and convection.
  18. Our physics descriptions are valid back to about 10^-43 sec. Not to zero.
  19. Depends on the temperature difference. Which is why it becomes less efficient with each stage of trying to recover energy.
  20. I used to teach the folks running the reactor. If you actually knew more your son would be in violation of national security laws for having divulged classified material to you, and he’d lose his clearance, and probably his job and pension. You don’t need to separate them; most are irrelevant. They would be thermal photons that don’t trigger the photodetectors. If these are near-visible or visible wavelength photons being entangled and you’re worried about contamination, there are wavelength filters and also the very technologically sophisticated step of turning the room lights off during the experiment. There’s also the coincidence measurement I mentioned, which is a filter in the time domain.
  21. Why do you need to separate the photon? How does this relate to the scenario under discussion?
  22. Yes, that was the revelation of Einstein’s relativity, back in 1905. We perceive length visually, geometrically. Time, not so much. There’s no physics that describes time standing still and contracting length to zero. The equations fail under that scenario. Before the big bang is another thing that physics can’t describe.
  23. Again, your idea of what’s going on isn’t how the experiment is run. It’s done under controlled conditions so there’s virtually no other candidate photons, and you do coincidence measurement to screen out extraneous signals. If you do e.g. spontaneous parametric down-conversion, the entangled pairs are emitted in a particular direction. The bottom line is the folks doing these experiments understand what’s going on, as opposed to some hecklers in the peanut gallery. Declaring that “this can’t work” and the insinuation that you know more than the scientist who have performed the experiments isn’t a good look in light of the fact that this does work.
  24. Length changes, too, under those circumstances
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