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User: Alioth

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  1. Re:PHYSICS: Why skin tight may be a bad idea on MIT Team Designs a New, Sleek, Skintight Spacesuit · · Score: 1

    Absolutely it would be fine with that. Mostly O2 environments are used routinely to no ill effect (mostly pilots in unpressurized aircraft at high altitudes). People aren't going to be spending their lives in a space suit, only relatively short periods of time.

    If you think the human body "would not be so very fine with that" (relatively short periods of high O2 atmospheres at lower pressure), please post a link to the appropriate medical citation - and statistics showing that pilots are dropping like flies from it.

  2. Dream on Microsoft Patents the Mother of All Adware · · Score: 1

    Hopefully, Microsoft are doing this simply to prevent anyone else from doing so, and are not planning to implement the patent themselves.

    I suppose I can dream...

  3. Re:Air Pressure on MIT Team Designs a New, Sleek, Skintight Spacesuit · · Score: 1

    No it's not, because the suit pressing on the body of the wearer will cause the pressure of the gases, liquids etc. that the wearer is made of to be something greater than zero. The suit is only airless if there's no occupant!

  4. Re:PHYSICS: Why skin tight may be a bad idea on MIT Team Designs a New, Sleek, Skintight Spacesuit · · Score: 4, Interesting

    Well, ignoring for now that atmospheric pressure is 14.7 psi, not 16 psi - there's no need for the suit or the occupant to actually be at sea level atmospheric pressure. In fact, it may be undesirable, as it means you need more powerful life support systems - more weight, more complexity.

    The human body is fine at 0.2 atmospheres so long as it's getting enough oxygen. While in the spacecraft without a helmet, with 0.2 atm (less than 4 psi) being pressed against your chest might be uncomfortable, it's not going to kill you.

  5. Re:Whatever happened 2 fuel cells? on America's First Cellulosic Ethanol Plant · · Score: 1

    Coal liquefaction showed up in World War II - that's how Nazi Germany were powering their war machine towards the end, when they had no oil.

  6. Re:How does this meme get propagated? on America's First Cellulosic Ethanol Plant · · Score: 1

    That's the whole thing about cellulosic ethanol. It can be made from weeds on marginal land, without requiring fertilizer. That's why it's so much superior to corn.

  7. Re:Could This Mean.... on False Copyright Claims · · Score: 2, Informative

    The *recording* can be claimed under copyright law. For instance, you can freely record your own version of "The House of the Rising Sun" and distribute it however you care. But you can't do that with the recording of that song made by The Animals. While the song itself is public domain, the recording is not.

  8. Hot hardware on Gigabyte N680SLI-DQ6 - A Mother Of A Motherboard · · Score: 1

    It's kind of fitting it's on a web site called 'Hot hardware'. With all those heatsinks, it must be horribly inefficient and heat generating!

  9. Re:Microsoft can't code on Microsoft's OOXML Formulas Could Be Dangerous · · Score: 1

    It's utterly irrelevant whether programming languages use radians or not for trig functions - a standards document should leave nothing to assumption, and should specify. Even the humble Unix manpage specifies that the trig functions use radians, rather than have the programmer just assume that's so - as the very first thing in the description!


    SIN(P)

    NAME
                  sin, sinf, sinl - sine function

    SYNOPSIS
                  #include <math.h>

                  double sin(double x);
                  float sinf(float x);
                  long double sinl(long double x);

    DESCRIPTION
                  These functions shall compute the sine of their argument x, measured in radians. ...

  10. Re:whatever on Privacy and the "Nothing To Hide" Argument · · Score: 1

    You must have a fair degree of self-loathing then (assuming you're male) every time you look in the mirror.

    Contrary to what most homophobes would have you believe, it is possible for a man to find another man to be good looking WITHOUT being sexually attracted to him.

  11. Re:What matters is enforceability on Groklaw Explains Microsoft and the GPLv3 · · Score: 1

    No. The point of this isn't so that someone can sue Microsoft, it's so that Microsoft has a hard time suing free software users and firms over alleged patent violations.

  12. Re:Phones and SIMs are always bundled here on Open Source Linux Phone Goes On Sale · · Score: 1

    I bought my last phone in the United States. The phone store wasn't even phased when I asked for a phone without service, and bought a separate SIM card later. Phones are only sold locked to the network in the US if you go to a network provider's store and sign a contract. If you go to a generic phone store, most of the phones can just be bought, and have any GSM carrier's SIM card inserted (from pay as you go to contract).

  13. Re:AI on Have Spammers Overcome the CAPTCHA? · · Score: 1

    I've long said that the first computer that becomes self-aware will be a spam filtering gateway for just this reason :-)

    Poor bastard when it does, though.

  14. Re:Arguably Impractical but Satisfying Suggestions on Have Spammers Overcome the CAPTCHA? · · Score: 3, Informative

    That's great, but the United States will have to be cut off from the Internet first. The USA is the world's biggest spam source, according to Spamhaus.

    http://www.spamhaus.org/statistics/countries.lasso

    The United States emits *four* times as much spam as its nearest competitor, China.
    Verizon is the world's spammiest ISP.

  15. Re:Bad programmers need more than 80 columns on Are 80 Columns Enough? · · Score: 1

    Just because you're not using the Microsoft language du jour doesn't mean you're not doing "serious programming". There is still mountains of serious programming going on in straight C.

  16. Re:Of course on Are 80 Columns Enough? · · Score: 1

    640K is loads. My current sub-project runs on an AVR microcontroller with 2K of flash ROM and 128 bytes of RAM.

  17. Re:What does the RIAA have to do with this? on RIAA Forces YouTube to Remove Free Guitar Lessons · · Score: 1

    It means we are criminals.

  18. Re:Pervasive anti-American sentiment?? on MS Moves R&D To Canada Due To Immigration Problem · · Score: 1

    Languages are just one way you can make yourself something other than an interchangeable cog


    Ah - so I should learn Java as well as C then!
  19. Re:I call BS on MS Moves R&D To Canada Due To Immigration Problem · · Score: 1

    New graduates at Microsoft are paid on the order of $60,000. _New_ graduates. That's a loooong way from next to nothing (indeed, in most western countries, you need around 10 years experience to get onto that pay grade). Microsoft salaries appear to be extremely generous.

    I am not a Microsoft lover, by the way - I don't run any Microsoft software and actively avoid it. But to claim $60K is 'next to nothing' for a new graduate is not right.

    (Ref. http://blog.seattlepi.nwsource.com/microsoft/libra ry/MSCompGu.jpg - new graduates are level 59)

  20. Re:Research Funded By on Whirling Twirling Propeller Trike · · Score: 1

    Well, he has lost one pant leg after all!

  21. Re:Brakes? on Whirling Twirling Propeller Trike · · Score: 1

    That's the next step of the project - being able to put the prop into beta. Either that or thrust reverser buckets!

  22. Re:sycko on Massachusetts Makes Health Insurance Mandatory · · Score: 1

    Apparently, though, you don't get taught how to spell or punctuate though :-)

  23. Re:yay you can safely remove the foil! on Newly Declassified Window Film Keeps Out Snoops · · Score: 1

    Many new houses over here use 'kingspan' insulation in the wall cavities (basically, a foam insulation with aluminium on each side) - so they'd have two conductive layers in the walls. Older buildings would need to be retrofitted (I just put some in my house, nothing to do with EM signals, but everything to do with keeping more heat in during the winter and heat out during the summer).

  24. Re:Lead In Fuels? on FAA Plans to Clean Up the Skies · · Score: 1

    On the last point, that is exactly what my first post in the thread was coming to: the FAA is the roadblock preventing us from getting rid of leaded fuels. As John Deakin's article points out, avgas minus the lead (i.e. the same formulation, simply without the TEL added) would cover the vast majority of the GA fleet; it would be compatible with the seals and other parts (which makes many aircraft fuel systems incompatible with gasahol), would have the same vapour lock properties as leaded avgas, and would lower the cost for petrochemical companies (and hopefully the end user). The few engines that wouldn't be compatible with unleaded avgas could be made so with a FADEC system.

    Why doesn't it happen? Because all the engines would have to go through a massive recertification program to run on unleaded avgas, and the price just isn't worth it for the likes of Lycoming and Continental. So the status quo remains. GA will be dead before the new diesels can make a significant dent, too.

    My dad's bike engine DOES have significant similarities to aviation engines, and you brought up compression - so I thought I'd point out that no normally aspirated aviation engine is even remotely high compression. My dad's engine is a carburetted (i.e. poor mixture distribution) racing engine which does spend most of its time operating at high power levels (usually >90%), for significant times (the IOM TT circuit is 37.75 miles long, and the sidecars do three laps). The mixture is also constantly changing - the IOM TT course changes altitude significantly (nearly 2000 feet), while not as much as an aviation engine, the bike engine doesn't have a mixture control or any kind of altitude compensation. It's much higher compression than any aviation piston engine, yet doesn't detonate itself to pieces on normal premium fuel.

    The (technical) problem is NOT several orders of magnitude more complex - indeed, in most cases, the technical problem IS trivial - just remove the TEL from avgas works for the vast majority of engines; the fuel will be the same with respect to seals, vapour lock etc. as leaded avgas. The problem that IS complex is the bureaucratic problem resulting in an expense that would be so high that technically simple solutions are just unavailable, because no one is willing to spend the vast amounts of money it would take.

  25. Re:Lead In Fuels? on FAA Plans to Clean Up the Skies · · Score: 1

    A twin with flat sixes is also likely to be above an O-360, too. As for compression, normally aspirated aero engines are so low compression it's almost funny. For an extreme, compare my Dad's 600cc bike engine (which is normally aspirated, carburetted, and not computer controlled - just the most basic electronic ignition) which runs just fine on the lowest octane fuel available at the pump.

    High compression in aero engines means something like 8.5:1. Tell anyone outside the GA world that 8.5:1 is high compression and they'll laugh at you! A normal low performance car these days (certainly in Europe) will have a compression ratio at least this high (and high performance cars a good deal higher).