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insane_alien

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Everything posted by insane_alien

  1. no, some would evapourate and the rest would freeze. you can try this yourself, you'll need a pressure cooker, a stack of bricks a small fire, and a long stick. fill the pressure cooker with water and stack bricks on top instead of using the clamps.then put it on the fire(do this outside). wait until the release valve starts letting out steam. this means the temperature is around 120*C and the vapour pressure is 2 bar. (now, the dangerous bit, try doing it from behind cover) using the stick, push the bricks up, the lid will fly off and probably a brick or two so watch out. there will be a great woosh of steam as a lot of it flash boils. after this has happened and the lid has landed, go look in the pot, there will still be a good amount of water left.
  2. actually, the martian surface has a maximum temperature of -5 *C with a pressure of 700-900 Pa at 0*C water has a vapour pressure of 611 Pa. it would not boil but it would freeze. it would have to get to 2*C to boil. surface pressures and temperatures taken from wikipedia. vapour pressures of water taken from Thermodynamic and Transport Properties of Fluids, 5th edition, G.F.C. Rogers and Y.R. Mayhew.
  3. no, not really. they can interfere though.
  4. anti-photons are exactly the same as normal photons. a photon is its own anti-particle. and with matter-anitmatter interactions, a positron will only annihilate an electron. it will not annihilate if it contacts a proton or a neutron.
  5. if electrons and positrons have identical charges then why do the curve in opposite directions when travelling through a magnetic field?
  6. if its by the coast then it could be plankton that has been washed up.
  7. nah, windows just does a crappy job of estimating it. i had firefox taking up more drivespace than i had at the time. (Add or Remove Programs said 3000GB, i had 40GB)
  8. that is conservation of angular momentum, not gravity. too tired to comment on the rest, suffering from a bout of insomnia just now.
  9. maybe the teachers(or yours) compiler uses an older standard of the C++ language. i tried compiling some code i made years ago and it wouldn't compile because some of the code was no longer code or not in the correct layout. digging out an old C++ compiler soon fixed that.
  10. well, i was in the right ball park. and anyway, i pulled that number from memory because i couldn't be bothered reaching over for my book of steam tables
  11. yes it would happen, and the pressure it happens at depends on the temperature. or, more specifically, the vapour pressure which is proportional to temperature. things boil when the vapour pressure is the same as the pressure of the system. so you need to lower the pressure ofthe system till this pressure is reached. off the top of my head, it is 4.2 kPa at room temperature
  12. zipped as in archive. it keeps the files together as one document. makes it easier to handle. also, any compression used will not make a noticable effect on speed as todays processors are generally multi-core and extremely fast.
  13. even if we could control them to the extent of EM they wouldn't be of any use to us. they don't operate over large enough scales. and cannot due to the ass of their force carriers.
  14. well, it would depend on the computer. current quantum computers only run at a few flops. but as the technology advances we will be able to build them with faster operating speeds.
  15. LESS involved than nitrocelulose? damn, thats a tough one. for what purpose do you want it?
  16. ahh, so they'll go for the method of getting people to write it down on paper then type it back into the computer.
  17. any non-zero force acting upon a non-infinite mass will produce an acceleration.
  18. or a virtual machine. less hardware involved.
  19. well, technically the biggest nuclei are neutron stars. though they have an atomic number of zero.
  20. well, you see, its not a matter of left to right energy, seeing as it is rotational. it still provides a torque on the driveshaft.
  21. how hard could it be to right up a script to convert them all to a different format (say .odt)? all you would have to do is run that every time there is a major format change and you are still capable of accessing the old files.
  22. eventually, you would get to a point where the electrons will fall into the nucleus. although, the nucleus will decay long before that. the halflives will be on the order of femtoseconds.
  23. the thread is in the archives, nobody can post there (well, admin probably can)
  24. yeah, i'm using IPv6 as well. some people reported turning it off speeds everything up but i haven't noticed any change(benchmarks said so) so i keep it on.
  25. i think it is 'a UMS'. well, i've always used 'a' when something like that crops up. 'an' doesn't sound right in that context. then again, i did fail higher english.
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