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User: PiAndWhippedCream

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  1. Re:Gmail also occasionally goes down on Yale Switching To Gmail, Not Without Opposition · · Score: 0

    I can count the number of times my college's mail system has expirenced downtime since I've been here (full disclosure: Sophmore) on one hand. Every time it has happened, I got an email telling me about it at least 24 hours in advance.

    That is far better than gmail's track record.

  2. Gmail also occasionally goes down on Yale Switching To Gmail, Not Without Opposition · · Score: 0

    It only happens sometimes, but it could bring a university to a grinding halt. And give a LOT of people a very bad 2.5 hours.

  3. Re:Gyroscopic effect? on Porsche Unveils 911 Hybrid With Flywheel Booster · · Score: 0

    Only if you choose to entirely ignore the effects of the rotational refrence frame. When you compare voltage to RPM you are silently multiplying by the demsionless unit radians.

    More percisely, a flywheel stores power delivered to it torsionally, a spring (I assume you were talking about a linear spring) stores force applied to it in a constant direction (work) as energy.

    Linear force ought to be thought of as DC, and torsional force, AC. An ideal capacitor will store energy (much like a Hookian spring) when a constant voltage DC (force) is applied to it. An inductor will store energy in the presesence of an AC source. (It is, of course, much more complicated then that, there are edge cases in which the difference between AC and DC is dificult to discern, such as wires long enough for the speed of electrical impulse to become meaningful, cases of magnetic resonance(ie transformers) etc.)

    Flywheels look like capacitors, look like springs, look like inductors etc. because the nature of force and energy is reletavely constant. However when one uses vectors rather than scalers, it becomes clear that capacitors are springs, but not flywheels, and that inductors are flywheels, and not springs.

  4. Re:Good idea on Ex-Pirate Bay Admin Launches Micropayment Service · · Score: 0

    No it doesn't.

    In economic terms if something can be copied without cost, then it must be ``sold'' to everyone for nothing.

    Flat rate to consume for flat rate to produce makes very good common sense though. Which is better than economical sense any day; there is a very good reason economics is called the dismal science.

  5. Re:Gyroscopic effect? on Porsche Unveils 911 Hybrid With Flywheel Booster · · Score: 0

    Yes, and a motor is an inductor. You can measure the size of the flywheel in Henries, I've done it before, obviously not with this particular product ...

    The reason it's useful to think of it as an inductor is because it is a spinning magnet; some of its energy storage potential will come from the spinning mass, but some of it will also come from the spinning magnet. The energy that is stored because the flywheel is creating a magnetic field that changes with time should be thought of as arising from inductance, as it arises in an undeniably ``inductive'' way.

  6. Re:Gyroscopic effect? on Porsche Unveils 911 Hybrid With Flywheel Booster · · Score: 0

    It looks like the flywheel itself has an integrated magnet, so it's basically a generator.

    In that case, it is an inductor. A really really big inductor, that happens to store it's energy mechanicly.

    The implication is that energy storage is determined by the product of the angular and magnetic moment, so it can store more energy at a given angular momentum than a purely mechanical flywheel. So perhaps the torsional effect is kept low enough that it doesn't affect handling.

  7. Re:Gyroscopic effect? on Porsche Unveils 911 Hybrid With Flywheel Booster · · Score: 0

    The problem with gimbals is that you need 4 of them, and energy extraction is somewhat dificult.

    Another solution is to use two flywheels that rotate in oppisite directions on the same shaft. This might be more able to produce the anti-roll effect you're looking for, energy could be transfered between the wheels to provide whatever angular force was necessary.

    I am also not a MechE.

  8. Ah Yes... on First Room-Temperature Germanium Laser Completed · · Score: 1, Funny

    But can they be attached to sharks?

  9. Re:Finally, someone gets it. on Lord Lucas Says Record Companies "Blackmail" Users · · Score: 0

    Exactly, it's a trap. First they lull us in with suggestions of sanity in copyright law, then they will turn the tables and say we will now monitor all data passing through your network so you can ``prove your innocence.'' Right.

  10. Re:Pluto = Asteroid WIth Attitude and Ego! on Pluto — a Complex and Changing World · · Score: 0

    Considerably easier if the ground is as small as it is on Pluto.

  11. Re:Pluto = Asteroid WIth Attitude and Ego! on Pluto — a Complex and Changing World · · Score: 0

    That's not flying, that's falling with style!

  12. I hate to sound suspicious, but... on Harder-Than-Diamond Natural Carbon Crystals Found · · Score: 0

    Pics or it didn't happen. I'll take smiles, but I won't like it.

  13. Re:Computer Science != Computer Skills on Researchers Make a Case For Learning Through Video Game Creation · · Score: 0

    PizzaAnalogyGuy?? Is that you?

  14. Re:Caps Lock Key on Does Your PC Really Need a SysRq Button Anymore? · · Score: 0

    BTW, on a completely different point, other than to get "god mode" in Doom, why the frick do we have a tilde key? Maybe programmers should get their own keyboard.

    So we can capitalize/uncapitalize things in vi.

    In all seriousness, though the one possible real serious use of the caps-lock key is to type SQL.

    SELECT table.c1, table.c2 FROM table WHERE table.c3 = 1

    Is much more readable than:

    select table.c1, table.c2 from table where table.c3 = 1

    still, I write much more SQL than I should (never will get around to learning transactions), and I have my caps-lock key mapped to escape.

  15. Re:Of course it is. on Is Linux Documentation Lacking? · · Score: 0

    apropos cd
    for me it output
    k3b (1) - KDE CD burning program
    on the 7th line
    apropos cd | grep burn
    output one relevant line.

  16. Strange on SarBox Lawsuit Could Rewrite IT Compliance Rules · · Score: 0, Redundant

    I was never able to find that section, kept returning a "not found" error or something.

  17. Re:Yep on GIMP Dropped From Ubuntu 10.04 · · Score: 1

    You actually got GIMP to compile from source? When I attempted this I found a confusing array of contradictory information: the GIMP website claims GIMP uses subversion, the GNOME website claims it uses GIT. Also: I have seen torrent sites less tight fisted with their download links than GNOME was with source code. GIMP may be an open source project, but I think I might have better luck getting hold of the Photoshop source tree.

  18. Re:Sick of the anti-gay groups on Legal War For WA State Sunshine Law · · Score: 1

    Of course the constitution doesn't say that we can marry whoever we want. That would be grammatically in correct, the constitution says we can marry *whomever* we want.