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Showing content with the highest reputation on 01/28/24 in all areas

  1. This particular youtuber is primarily motivated by his support for Ukraine and this video is no different with his frustration at the stalled American support. It describes very clearly the politics and reality of the use of immigration issues and why he feels nothing will be solved on that front. Probably nothing particularly new to most here and I'm sure others might have a different take but though politically independent I think he more blames the Republicans for the current impasse:
    3 points
  2. And not just any old doctor - a paediatrician no less: a professional specialising in child development.
    1 point
  3. Sure! Reading the pdf on the RB47 encounter, I was struck by the three different channels of information consistently presented to crew over a distance of six hundred miles. I could see no explanation that would be consistent with either natural phenomenon or secret cutting-edge technology in 1957. New induction range. Which, I'm told, Joe B will reimburse me for sometime this year.
    1 point
  4. The Republicans have been playing this game with the border for years. They have no interest in dealing with it, as fixing it would give them one less thing to complain about, and all they have to run on are grievance issues.
    1 point
  5. NASA, after putting men on the moon, co-building a space station, sending probes throughout and beyond the solar system, landing sophisticated exploration robots on Mars, and spending trillions to usher in a new age of exploration, today celebrated the removal of two stuck fasteners on a box of dust! The Guardian reports: Curators at Nasa’s Johnson Space Center in Houston have said they are “overjoyed” to have finally got a canister of asteroid dust open, four months after it parachuted down through the Earth’s atmosphere into the Utah desert. The space administration announced Friday that it had successfully removed two stuck fasteners that had prevented some of the samples collected in 2020 from the 4.6bn-year-old asteroid Bennu, which is classified as a “potentially hazardous” because it has one in 1,750 chance of crashing into Earth Most of the rock samples collected by Nasa’s Osiris-Rex mission were retrieved soon after the canister landed in September, but additional material remaining inside a sampler head that proved difficult to access. After months of wrestling with the last two of 35 fasteners, scientists in Houston managed to get them dislodged. “It’s open! It’s open!” Nasa’s planetary science division posted on Twitter/X. The division also posted a photograph of dust and small rocks inside the canister. https://www.theguardian.com/science/2024/jan/21/nasa-bennu-asteroid-dust-rock-samples-johnson-space-center
    1 point
  6. Going by purely Heisenberg considerations, if at a certain scale translational symmetry ceases to have meaning, can a classical theorem like Noether still say anything about momentum conservation ? If position and momentum are 'fuzzy', or smeared out, translational symmetry and momentum conservation must necessarily be also. Feynman diagrams essentially put a box around an interaction within which all possible series of interaction can happen. The largest series of interactions, with the most nodes are least likely to be realizable as they describe virtual interactions, which are 'off shelf' and don't need to satisfy energy-momentum considerations. I would think that means our current models do not necessarily conserve energy or momentum at small enough scales. The conservation condition is approached, or emerges, when off shelf virtual particle effects become negligible, and you 'zoom back' out of the Feynman box. And it is already exceedingly difficult to keep the few electrons trapped in narrow, shallow potential wells, at current feature size of modern semiconductors in order to define logic levels, but Moore's Law has had a good run, going from a couple of thousand transistors 50 years ago, to over 100 billion in Apple's latest ARM implementation.
    1 point
  7. If you've never been hungry enough to eat from a bin, you'll be ignorant as to how delicious food can be... Whatever culinary skills you acquire... In the right context "murdering people" is a kindness; it's far more cruel, in the right context, to keep people alive. That's why we have a judiciary, the only problem with that is, the government makes the rules, instead of people that actually understand.
    1 point
  8. exchemist didn’t say it was. They said the average perturbation was zero. I thought Genady addressed this.
    1 point
  9. I believe the evidence is not to be found on some higher plane but on a more fundamental one. Science is based on a belief in a unversal order, a legacy of monotheistic belief but nothing to do with the scriptures. We find evidence for this universal order in the reliability of the laws science and the specificity of some fundamental constants. The scriptures are irrelevant, and the evidence for this statement, is the remarkable discoveries made by Islamic scholars in the middle ages. Mathematics and astronomy, not to mention the discovery that the world revolved around the sun, were discoveries made in a civilisation founded on Islamic scriptures. But clealry scripture played no part in these discoveries. However what the Islamic scientists chared with their later Christian colleagues, was a deep conviction that the universe was subject to some sort of order, perhaps intelligence. Even Feyman joked that God must have been a hellover mathematician. So Copernicus and Galileo and Kepler got there a few hundred years after the Arabs, not influenced by the Scripture of thier times, but a fundamental belief in some universal authority. I think that the reason universal laws were never discovered in Eastern civilisations is because they do not believe that there is any universal authority. For the Buddhist believer the very nature of separate existence, as we know it, is challenged. All is inter-connected and there is no place for certainty is Buddhism, which is why it is quite happy to adopt Western theories of quantum mechanics. To return to the orignal question, religion, as in the sciptures ( neither Christian nor Islamic) have no relevance to science. However, belief in an ordered universe is fundamental to it.
    1 point
  10. Does an arbitrary test have a ceiling? Ask the builder,,,
    1 point
  11. Get that watching YouTube vids is like the last thing to count on. Been there, got burned, and now I'm all about advising peeps to hit the books first, dig in, get the gist, and only then roll with the vids. Quick add-on, peeps in college are all hyped about AI, thinking it's the golden ticket.
    0 points
  12. I read every comment and all I get is "You're Wrong!" No one has the courage to share what they believe is the truth. I am not arguing or standing behind the standard explanation and theories. It's all just information as far as I am concerned and I won't consider any of it TRUTH until the day its proven beyond a reasonable doubt. If you disagree with the current explanation of the beginning of the universe then publish your theory and set the record straight. I am simply cutting and pasting what is printed on the websites that belong to several of the major Universities and institutions that you and others received your degrees from. Anyone can disagree with anything but can you prove it is wrong or are you a contrarian like many of the people on this site?
    -1 points
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