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User: HornWumpus

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Comments · 22,708

  1. Re:Rocket engineering [Re:Nice idea but] on NASA Funds Designs for a Nuclear Thermal Propulsion Rocket (space.com) · · Score: 1

    Not the core, the heat exchangers running through the core.

    If they are running at 700C they're going to need a different material. One that hasn't lost 80% of its strength.

    The heat exchangers, as a whole, would take reaction mass from its tank temperature to its exhaust temperature.

    For reference Uranium melts at about 1100C, Plutonium at about 600C.

    The whole deal is a very tough materials science problem.

  2. Re:Let's re-invent hammers and nails on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    Object onion or spaghetti? Bad coders can produce crap with any tool.

  3. Re:Is it time to Round Up the Muslims? on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    Crankshafts existed long before the Mohamed was born. So did peg lifters. Try again.

  4. Re:Is it time to Round Up the Muslims? on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    Lifter pegs are _much_ older than that. First invented by the Chinese, but independently reinvented many times.

    The connecting rod/crankshaft is the most basic rotational to linear motion mechanism. First used with animals for power.

  5. Re:Is it time to Round Up the Muslims? on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    'Nobody ever writes anything original, they just regurgitate the same thoughts they read...'

    Mark Twain was likely just taking a piss on Edison, his associate/friend.

  6. Re:Jesus Christ... on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    If C++ programmers were trying to 'work fast' they would be Java, C#, PERL or Python programmers. Unless you're comparing them to assembly programmers.

  7. Re:Jesus Christ... on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    The 'Owl' argument: That word/phrase doesn't mean what it means, it means what I meant it to mean when I wrote it.

    The generic phrase you are looking for is 'memory management'.

  8. Re: Jesus Christ... on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    'Premature optimization is the root of all evil.'

    If you know the code is performance critical, it's _not_ premature to think about efficiency during the initial pass.

  9. Re: Jesus Christ... on ESR Sees Three Viable Alternatives To C (ibiblio.org) · · Score: 1

    Why are kids so terrible at abstract reasoning?

    Abstract reasoning is also inversely correlated with self delusion. Self delusion is inversely correlated with knowledge.

  10. Re: They're still useful... on Payphones Still Make Millions of Dollars (vice.com) · · Score: 1

    When I was a kid, east of the Mississippi, a 'dime bag' was traditionally a quarter ounce. Already cost $25 and up.

    Not in common useage anymore as far as I can tell. Gone the way of 'a lid'.

  11. Re:We definitely need them here. on Verizon, AT&T Announce Plans To Build and Share Hundreds of New Cell Towers (fiercewireless.com) · · Score: 3, Funny

    You live in Utah...I'm sorry.

  12. Re:Scale on Payphones Still Make Millions of Dollars (vice.com) · · Score: 1

    The concept you are missing is 'sunk cost'.

    In some rustbelt shithole, there are warehouses full of old, perfect condition payphones.

  13. Re:'Gaming laptop' is a bad choice. on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    You obviously don't game. Try and game on Intel integrated graphics, you'll only have to try it once.

    Theft happens in a second. Kid's back is turned and it's gone. After class, on the bus, at a fast food etc.

    What's the average life of a kid's laptop? Not a toughbook, a regular fragile laptop? Months, at best, in my experience. Granting those were typically older hand me downs. Many times weeks between OS reinstalls. Would be much longer if the kid had worked for it, but free is free.

  14. Re:Rocket engineering [Re:Nice idea but] on NASA Funds Designs for a Nuclear Thermal Propulsion Rocket (space.com) · · Score: 1

    Annealing temperatures aren't exactly achieved by chemical hand warmers.

    Just using 'steel' as an example, steel has in the neighborhood of 20% of room temperature strength at annealing temperature (700-800C). If you have to impose a 400% safety margin, you might as well just let it get a little brittle. Especially when you think about preheaters etc and the complications of trying to get all parts that hot.

    Final heat exchangers might actually be that hot or hotter, but steel as final heat exchanger?

  15. Assume you mean personyears.

    If you mean ten or twenty people for four years, that's very very optimistic from a defense contractor. Or your assuming they're just generating paper.

    I'd assume this is paying for one person with a good idea, a _small_ engineering team, support staff and funding to build a prototype.

  16. 'Energy fighting' has been air combat doctrine since WW2. They didn't furball with the zeros then. High speed pass after high speed pass is how they won air battles.

    It always has been about how the airplanes stacked up against each other. If in the faster plane, carrying more energy (speed and alt), pilots don't engage unless they have the advantage. Even in the slower, pilots can usually break off and end the fight. Dive for the deck and get lost in the ground clutter.

  17. Re:'Gaming laptop' is a bad choice. on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    He's 14 and wants a laptop, to play games on (needs?). Do you remember being 14? Would that have been a smart use of your parents resources? Read back up the thread, I suggested a _disposable_ laptop for school and and letting him build a gaming desktop. No good games at the back of the classroom is a _feature_, from the parent's and teacher's POV.

    Self righteous claims of living in a crime free society were ignored as the _obvious_bullshit_ they are.

  18. Falsifiable test? on Is Physical Law an Alien Intelligence? (nautil.us) · · Score: 1

    Not even a scientific hypothesis...fucking navel gazing dweebs.

    I 'say' the laws of physics are a n dimensional clockwork. Using probabilistic collisions between parts to generate the modern physics parts. Prove me wrong?

  19. Re:Not sure they understand licensing on CopperheadOS Fights Unlicensed Installations On Nexus Phones (xda-developers.com) · · Score: 1

    Isn't the GPL specifically designed to prevent this?

  20. Re: Raise your child properly on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    For definitions of 'smart and well adjusted' that amount to 'sheltered and incapable'. 14 is not 5.

  21. Re: Good luck getting a job before 16 on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    Illegal ismegal.

    He should lie about his age, same as everybody did or just get a mower and run an informal business.

    Faking up a birth cert/work permit will get the boy started on his forgery skills. All good.

  22. Re:Raise your child properly on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    Depends where you live and when. In most 'burbs, dust is mostly dried up animal (dog and cat) shit, blowing in the wind.

  23. Re:Raise your child properly on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    60th trimester abortion!

  24. Re:'Gaming laptop' is a bad choice. on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    Everything in your post is wrong. Everything. I'm impressed.

  25. Re:'Gaming laptop' is a bad choice. on Ask Slashdot: What Should A Mac User Know Before Buying a Windows Laptop? · · Score: 1

    14. It will be lost or broken by the end of the year.

    Also a 14 year old will NOT be happy PC gaming three generations old games. The kind he already plays on his phone.