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Severian

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Everything posted by Severian

  1. Severian

    Dating

    For goodness sake, just move on. There is more to life than moping over one girl. The girl of your dreams is out there waiting for you. Go find her!
  2. What does this have to do with Jesus?
  3. The article is not to be trusted. It doesn't really make wrong statements, but it puts emphasis in strange places and misrepresents ideas. For example, in the part you quoted the author uses the cosmological constant to make statements about the heat death of the universe, but these two things are not related at all.
  4. Pretty much all of my scientific papers are available on Spires.
  5. I would write (and expect) [math]\log[/math] for base-e in particle physics theory papers.
  6. Ever heard of irony?
  7. What makes you think these two sentences are compatible?
  8. Maybe we need to kill the infant children of dictators more often.
  9. When you jump, you keep your angular momentum so you will almost follow the Earth around. I say 'almost' because angular momentum is [math]L=m \omega r^2[/math] (where m is your mass, [math]\omega[/math] is the angular speed and r is the distance from the centre of the Earth). So when you jump, your r gets slightly bigger while L (and m) stay the same, meaning that [math]\omega[/math] must get slightly smaller. So you will lose a little angular speed and fall a little behind, but unless you can jump really high this is rather negligible. A more interesting question would be: what happens if you make a long jump from the equator, heading north?
  10. So, you don't like her much then?
  11. I don't see what pain has to do with it. Does that mean if I kill an animal painlessly vegitarians will eat it?
  12. Severian

    GAS Price

  13. Severian

    GAS Price

  14. I don't think that sort of comment is going to help matters.
  15. Severian

    GAS Price

    Really? Are they are as expensive as ****ing up the planet? Or were you expecting someone else to pay for that?
  16. Severian

    GAS Price

    Is this supposed to make us feel sorry for you? I would like to see 'gas' prices start to include some quantification of the environmental cost. Maybe then people would start to see the the cost of driving large distances regularly is unacceptable.
  17. Or perhaps this The most accurate published result appears to have been done using a Penning trap.
  18. I always get: "The owner of this content has chosen to hide this clip."
  19. The first energy level of hydrogen is -13.6eV. So an electron with more than 13.6ev will escape. This is very small compared to the mass of 511kev/c2 (ie. a factor of about 37,000), so the bound electron in a hydrogen atom is most certainly not relativistic.
  20. That's not true. They look at the order of cadidates' grades, not the actual grades themselves. So if everyone did badly in a particular year, a lower grade might still be enough to get in.
  21. What proportion of the final mark is the coursework? If there are 50 marks from the coursework and 360 from the exam (as your post seems to indicate) then you need 369 marks for A* and 328 for A. since you got 43 for the course work, you would now need 326/360 (91%) for an A* or 285/360 (80%) for an A in the exam. If your get half your marks from the coursework and half from the exam then in the exam you need 94% or 74% for an A* or A repsectively. Either seems doable, so why are you complaining?
  22. There are lots of ways to do that already. They are just a bit expensive.
  23. Incidentally, there was a slight subtlety in this problem. Normally one would expect the second derivative to be continuous also - so the gradiaent of the wavefunction would also be smooth. But in this case, the potential itself is not continuous in its gradient (it jumps from -V0 to 0 at x=a) so the gradient of psi is not continuous either.
  24. No - you are right. You can't live in the 'other dimensions'. Anyway, If the other 6 (or 7 for M-theory) dimensions exist they are as much a part of our universe as the first 4. So if entropy causes the heat death of the universe in the first 4, it causes it in the others too.
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