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Everything posted by Strange

  1. https://www.forbes.com/sites/startswithabang/2020/08/19/in-quantum-physics-even-humans-act-as-waves/
  2. I guess you mean, "that results in the greatest change of volume" (so that if it were in a confined space it would cause the greatest increase in pressure). I don't know the answer. I'm not a chemist but I wouldn't be surprised if it is a compound with several nitrogen atoms. They tend to be somewhat unstable. For example: https://blogs.sciencemag.org/pipeline/archives/2011/11/11/things_i_wont_work_with_hexanitrohexaazaisowurtzitane (worth reading for the phrase "limb to chemist ratio")
  3. Horses and donkeys belong to the same genus (Equus). There are quite a few hybrids possible between horse-like species. Giraffes and cows are from different families (they are both in the order artiodactyla). Taxonomically, this is the same as the two species of fish, but in terms of time, the fish diverged much longer ago. (Even if giraffes and cows were almost genetically identical, for purely physical reasons they would not be able to interbreed and so would probably be considered separate species or sub-species)
  4. ! Moderator Note You are just making more and more claims that are completely unfeasible. You have provided no evidence for your claims (hardly surprising as evidence contradicts many of them). Do not open another thread on this topic. And do not hijack any more threads.
  5. ! Moderator Note The rules require you to answer the question here, not just say "read my book/blog" Not putting a link does not allow you to circumvent the rules. ! Moderator Note Show the calculations that demonstrate this agreement. ! Moderator Note NO.
  6. In what context? I am trying to get my head round what that means! My contribution: "Are photons particles or waves? Neither: they are photons"
  7. ! Moderator Note Do not hijack other people's threads with your own ideas.
  8. There are two different things that can cause time dilation. One is relative speed and the other is gravity. First, not that you cannot move at light speed. However, if you are moving relative to someone, then you will see their clock run slower (and their length shortened). So, for example, if you are moving past the Earth in a spaceship, people on Earth will see your clock running slower than theirs (and so you will be also aging more slowly). BUT (and here's the tricky bit) you will also see the clocks on Earth run more slowly than yours. This is because it is all about relative measurements. The reason this happens is because the speed of light is the same for everyone, independent of your speed. If you work out what that means, it turns out that an observer sees other people's clocks run slow and their rulers shorten. That has nothing to do with gravity. But gravity does also affect how we see other people's time. If your spaceship was stationary above the Earth, then you would see clocks on Earth running slower because of gravitational time dilation. Now, this may be confusing, but the people on Earth would see your clock run faster (not slower, as in the case of relative velocity). This is all caused by the curvature of spacetime (which also causes gravity). Acceleration causes "artificial gravity" (like when you are pushed back into the seat of your car, when you accelerate). But moving at any constant speed does not. There is no evidence that Earth had less gravity un the past. There is no evidence that human lifespan or height has decreased significantly over time.
  9. Someone else mentioned it on the forum a while ago. I had never heard it before. Maybe some dream in colour and others don’t?
  10. ! Moderator Note Start a new thread in Speculations if you want to present your ideas ! Moderator Note There is nothing there that needs to be "solved" ! Moderator Note If you don't understand things, it might be better not to post nonsensical comments like this. Why not ask for people to explain things to you instead. ! Moderator Note This is off topic. If you want to ask about the evidence for dark matter, please start a new thread on it. Any more off-topic posts will be removed.
  11. Ok, I see what you mean. But the brain is definitely in a "altered state" when dreaming. Similarly effects can be achieved through chemical means(*), that also disrupt the brain's normal behaviour. (*) apparently 😐
  12. Your repeated claims that GEM can replace GR, despite all the explanations that it can't. Your claims that gravitational lensing could be explained by refraction, when obviously it can't. This is clearly just an attempt to promote alternative crackpot theories outside of the Speculations forum.
  13. No. Then why are you continuously taking it off topic?
  14. ! Moderator Note Moved to Organic Chemistry
  15. Gravitational lensing does not behave like refraction. (Maybe because the light does not slow down.) Your anti-GR preaching is getting tedious.
  16. I disagree (with the last sentence). We appear to see a detailed, full colour, continuous view of everything around us. But only a tiny part of our field of view is in colour. Only the the thing we are actually looking at is in focus. Our eyes keep moving about, and every time they move the brain blanks out the input from the eyes (so we don't get dizzy) and then fills in the blanks afterwards. So almost everything we think we see is created by the brain from low quality, fragmentary information. So what happens in brans is not really a stretch at all. Also, you remember dreams as being as complex as you say. But that memory is created by your brain as well. (For example, we often think we have had a dream that took place over hours, or even days, but the actual time dreaming is actually just minutes.) Basically, you can't rely on anything you remember about a dream as being an accurate description of what happened in the dream.
  17. Yes. An extreme example is that beyond the event horizon of a black hole, the radial direction becomes time so the singularity is in your future, instead of ahead of you (in some coordinate systems, anyway).
  18. ! Moderator Note This is the "Homework Help" forum, not the "Homework Answers" forum. We will not do your work for you, only point you in the right direction. Posts that do give the answers may be removed. So @Rhys13 would you explain where you have got to in solving this problem and what has stopped your progress - hopefully members can then help you to overcome your difficulties yourself.
  19. And our waking consciousness is already "behind" the stimuli the brain receives anyway. So playing timey-wimey tricks on us is the brains forte!
  20. Not so much a mirror image, but they are related by a rotation that depends on your relative speed.
  21. ! Moderator Note You are free to provide your "explanation" on the forum. You can even link to resources to support what you say. What you cannot do is just say "go and read this book/website". However, there is nothing that needs to be "solved". Just because you don't understand it, doesn't mean it isn't understood.
  22. Because it is a dream, your brain has created the situation, created the other character, and also created the sense of surprise/revelation that you feel. I can't see anything mysterious here. I thought this was going to be about the much more interesting way the brain can (apparently) set up a situation in advance so an external stimulus (e.g. the alarm clock) is incorporated seamlessly into the dream (for example, as telephone ringing).
  23. There is nothing in space to cause refraction. And refraction does not behave like gravitational lensing.
  24. Neglected means they never considered it. Dismissed after doing the necessary math to show it doesn't work is NOT neglected. As you have provided no reason to think any such mechanism would fit the observations, why should we take your claims seriously?
  25. Then why do you keep bringing up your false and off-topic claims about GEM. Space is not full of water.
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