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John Cuthber

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Everything posted by John Cuthber

  1. Teachers often ask students questions. Do you know why?
  2. Easy, Look through the previous posts. When you find this one http://www.scienceforums.net/topic/74196-theory-for-cause-of-metastable-state-establishing-causality-in-nature-again/?p=738699 you will know that he has, in fact, given an explanation. I think he was using irony to illustrate the fact that you don't seem to have read what he has written. Perhaps you should since it actually explains the metastable states without needing any new mumbo jumbo explanation.
  3. I know what rabies is. What's the "man rabies" which you seem to have invented? Rabies is real and has real symptoms. The zombies are not real and any symptoms you ascribe to them are made up. If we go along with this weird idea that zombies are people with a version of rabies then a glass of water might be more use than a knife or a bunker. My point is that you won't (and can't) know if the zombies are hydrophobic unless they arrive. So you don't know how to prepare for them.
  4. Post 1 said "Recent comments by an Astronomy orientated Researcher Dr Paul J Abel (Patrick Moore Sky at Night Fame ) (see ajb blogg), has posed questions as to whether maths should be leading the resolution of the ( Quantum Gravity issue), which it is, in string theory and other maths orientated research., Yet ( he indicates ) what is really required is a New Einstein ! Observers, Thinkers , and Hypothesis, to lead the field and then the mathematicians can follow and tidy up the details. !" I'm not sure what that means. The answer to the question is that,mathematics alone cannot possibly know what is right, it can just rule out things which are impossible. However there's a problem with the question in the title. It asks if it should be maths or a hypothesis. But the hypothesis will be largely maths.
  5. One potential problem with using maths alone to describe the world, is that you might describe a world which is possible, but not the one we inhabit- like this one http://en.wikipedia.org/wiki/Flatland Without reference to experiment you have no way to know if you are doing the right maths for flatland, and learning nothing about reality. So, no, on it's own maths isn't "safe" in the sense that it could lead you massively astray.
  6. "The claims I make are interesting because they can be investigated" No, they are not interesting. They are drivel, because they are (from the point of view of anyone with some understanding of physics) obviously rubbish from the start. For example , when you say "I think that if c is actually the maximum speed for anything, then it would make more sense because of friction." you are clearly talking bollocks because the effects of friction are well understood. Just for a start, they don't impose an upper limit on the speed of things. Why don't you go and learn some science rather than posting stuff that might as well say "I think that all tables are made by teddy bears" or "all hot things are green".
  7. Please stop talking crap. For example "man rabies"doesn't exist, so there can't be a new form of it. All of this "Normal Strain Symptoms Paralysis, anxiety, insomnia, confusion, agitation, abnormal behavior, paranoia, terror, and hallucinations, progressing to delirium New Strain Symptoms Anxiety, insomnia, confusion, agitation, abnormal behavior, paranoia, terror, and hallucinations," is just stuff you have made up- it's not even good fiction. and you have yet to address the point that, since zombies don't exist, you don't know what properties they have, so you can't tell what will harm them, so you can not prepare. How, for example do you know that they can't get into your bunker? (and the fact that you have one speaks volumes about your ability to assess risk) Since they are entirely made-up, I can make up a zombie that eats through concrete and steel. My imaginary zombie is just as valid as your imaginary zombie. How do you prepare when you have no idea what your enemy might be like?
  8. You don''t even need to extract work from it. Viscosity of the liquid will stop it .
  9. Originally, they measured the atomic masses by doing chemistry and weighing things so, for example if you take some known mass of hydrogen and pass it over heated silver chloride you get hydrogen chloride and silver. If you weigh the silver and the leftover mixture of silver and silver chloride then you can find out how much chlorine was used reacting with the known weight of hydrogen. It turns out to be about 35.5 grams of chlorine per gram of hydrogen. Atomic masses were originally measured using the mass of hydrogen as the unit so the atimic weight of chlorine was measured to be 35.5 That's consistent with the fact that chlorine has two isotopes of mass 35 and 37 in the ratio of about 3 to 1 (It gets a bit more complicated when you have valencies other than 1)
  10. If gravity pushes then it must push against something or it breaks Newton's third law. I'm not "personifying " anything.
  11. http://xkcd.com/859/
  12. Yes (apart for your, quite reasonable, concern for his mental health) They can scarcely get a meaningful signal out of a rat's brain even if they drill a hole in the skull and stick a wire in there. How could they read the mind of a person in the street?
  13. Also, if you get a container and empty the air out of it then you can measure the change in weight. Similarly, they sometimes measure the amount of gas in gas cylinders by weight.
  14. I'm going to define a function f(x) such that f(x) is the largest possible number that can be expressed using x digits. Let me know if you can beat f(3).
  15. I seem to have missed the response to this (as required by the site's rules).
  16. What does "it" brace itself against, in order to push?
  17. Nothing explains the unexplainable. God explains the unexplainable God is nothing. Looks OK to me.
  18. The two items have equal momentum, but it's not really half. (Half of what?) The amount "created" is zero because you can't create something which is conserved. It's a bit like if you lend me $10 The total amount of money we have (added together ) is still the same- none has been created and you couldn't say we each have half the debt. But I owe $10 and (in a mathematical sense) you owe $-10
  19. We know that. So what? Are you referring to this? "If you can use operator, then you have; 1/0" because I have news for you, as I said before, that operator is not defined for zero. 1/0 has no meaningful value (infinite or otherwise) So, there are lots of big numbers in this thread, but the ones which are produced by properly defined use of operators are all finite.
  20. "Shouldn't any of the measurements of density, electronegativity, heat capacity, etc. differ among protium, deuterium, and tritium?" Yes, they do. https://en.wikipedia.org/wiki/Deuterium#Data_for_elemental_deuterium can be compared to https://en.wikipedia.org/wiki/Hydrogen#Properties Generally, the quoted figures for elements like chlorine or copper which are a mixture of isotopes refer to the value for the "normal" mixture. For some elements like selenium and lead the ratios of the isotopes varies with the mineral in which they are found and the "atomic weight " for these elements isn't very accurately defined.
  21. In the cases where it's maladaptive the moth flies into the flame and the trait does not persist. In the cases where the trait is beneficial the moth survives and has children and so the trait persists. We don't see the dead moths' children (because they don't exist) so we don't see the population that arose from situations where the trait was maladaptive.
  22. So, you are saying that if the atmosphere is flattened on the shaded side of the earth then that's because gravity pushes, but on the other hand, if it bulges there, it's because gravity pushes. Clearly nonsense (even with added leprechauns)
  23. Really? What makes you think that?
  24. Your mind is, it seems, the only place where no such doubt exists.
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