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Silencer

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Posts posted by Silencer

  1. Making closed drivers is the companies' way of protecting their products and hindering open source. It pisses people off, but since the driver at least works it stops them from complaining too much.

     

    Albertlee, it is not as simple as just copying some .dll's from windows over to linux to get windows support. The Wine project (http://www.winehq.org) is working on it though, building windows libraries and API's from scratch.

     

    I'm sure that Sun had to be very careful when they made that system, and put a lot of money into lawyers' pockets. The terms of the GPL license, which most open source software is released under, are pretty complex when it comes to shared libraries and stuff, and what they can and can't be included in. See, normally if you use any GPL code in a project, the entire thing must in turn be released under the GPL or a GPL compatible license, but when you are just including a library things become messier.

  2. lol... taking the exam before the class! more power to you.

     

    i mean, people in my class think i'm really smart (and a major nerd) because i knew most of the chemistry we learned. I can only imagine how you are viewed by your peers.

  3. Well, when I formatted my linux partiton for ReiserFS, it asked if I wanted to do a "secure format" (or something) where the data was actually overwritten, or just do a normal "wipe the FS" format. Obviously the former will take much longer, but I don't even know if windows has that option. I know there are utilites that will do it for you though (several times, if you're paranoid).

     

    As long as it is going (albeit slow) just let it be. If it freezes, which has happened to me in windows, then maybe there is a problem.

  4. are you allowed to use Oraganic chems' date=' such as 1-2-3 propan triol

    or ethylene Glycol for instance ?[/quote']

     

    Probably not, since he said salt. Plus, the K values only work for a nonvolatile solute.

     

    We recently made ice cream in chemistry class, with the excuse being that we were studying freezing point depression.

  5. The Kf value for water is 1.853 C/m. This means that the boiling point depression is equal to 1.853 * m, m being the molality of the substance. Molality is the moles of solute divided by the kilograms of solvent.

     

    Thus, if you have a .5m aqueous solution, the freezing point depression will be 0.9265 degrees, the freezing point being -0.9265.

     

    The same thing goes for boiling point elevation (Kb). This contstant is 0.515 for water, so with that same aqueous solution the boiling point will be 100+(0.515*.5) = 100.2575 C.

     

    Each solvent has a different constant value, which you can look up. Realize that it has nothing to do with the solute, just the molality of the solution. Your results should be the same for any salt you use.

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