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User: amightywind

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  1. Reamed with the Rational Rose-bush on Open Standards Planned For Next NASA Telescope · · Score: 4, Insightful

    I used Rational Rose in a large avionics project. I can honestly say it is the worst piece of software I have ever encountered. This push comes from the suits at NASA glad handing their buddies at IBM. It cannot come from the programmers.

  2. Re:Effect of massive H20 emissions on Solar Power Eliminates Utility Bills in U.S. Home · · Score: 1

    A fairly stupid comment that dodges the question of the climate effect of increased relative humidity.

  3. Re:Effect of massive H20 emissions on Solar Power Eliminates Utility Bills in U.S. Home · · Score: 1

    Indeed, if morons like yourself cannot understand a simple question.

  4. Re:Effect of massive H20 emissions on Solar Power Eliminates Utility Bills in U.S. Home · · Score: 1

    My point is that combustion exhaust H2O emissions are forced into the atmosphere out of equilibrium. Average humidity levels across the planet must rise. My question is if all C02 emissions were converted to H2O emissions how much would humidity levels rise and by how much?

  5. Effect of massive H20 emissions on Solar Power Eliminates Utility Bills in U.S. Home · · Score: 1
    The solar-hydrogen residence project provides a tremendous opportunity to reduce greenhouse gases that contribute to global warming

    Isn't H2O also a greenhouse gas? What effect on climate increased humidity levels have if H2O emissions where substituted for CO2 worldwide?

  6. Done already by South Korea on New Rocket Engine Successfully Tested · · Score: 3, Informative

    I am partial to US technology in most matters but South Korea successfully tested a 20,000lb thrust methane engine last year. I believe that Japanese have something similar.

  7. Poisonous sh*t? on NASA Slashing Observations of Earth · · Score: 1
    Tell you what, let's give up all the regulations, and just go with "if you want to emit poisonous shit, pay into this fund to pay for treatments for your poisonous shit". You want to spray benzene all over the city?

    I wasn't aware that CO2 was 'poisonous shit'. I prefer to call it 'plant food'. Your benzene and cancer rants are truly bizarre.

  8. What's a factor of 10? on NASA Slashing Observations of Earth · · Score: 1
    3) India/China are not projected to reach the US's level of greenhouse gas contribution for 20 years. Per Capita equivilance is even further away.

    Well, what's a factor of ten when arguing about Kyoto and global warming?

    4) Kyoto wasn't supposed to be a solution - it was supposed to be a first step. Anyone thinking otherwise is deluded.

    I have heard that the regulatory damage to the US economy would have been $100 billion, and that the reduction in emissions would reduce the projected warming trend by 0.07 deg C. One wonders what the full dose would cost.

  9. Blue Origin Design Confusion on Blue Origin Building DC-X Lookalike · · Score: 1
    Than what? What alternative are you suggesting for POWERED ASCENT? A giant cannon? Some sort of sky-hook?

    Jackass. If you purposely misread a simple sentence I can't help you much.

    As for descent, keep in mind that even the expendable Soyuz re-entry capsules have landing rockets.

    Keep in mind that a Soyuz descends under parachute and uses the rocket firing briefly before impact to reduce landing shock. They have nothing to do with the rest of the descent. They stand in place of a landing bag.

    If you want a parachute system to be re-usable, you would need either landing gear or a structure and re-entry shield built strong and leak-proof enough to take repeated water landings. That adds mass, too. Parachutes are not enough.

    Yes, simple skids add a small fraction of the size and mass of the outsized tanks of the Blue Origin. No solution is free. But to most engineers the lighter simpler safer system is preferable. Not suprising Bezos embraced the sexy and discredited alternative

    A LOX-H2 SSTO design such as SSX has an easier time descending than may at first be apparent. It has a low terminal velocity due to its large, empty tanks, and a hovering propellant consumption rate some 25-30x lower than during lift-off (10x because it already burned over 90% of its propellants on ascent, times another 2.5-3x because it only needs to achieve one gee to hover). So a 1-minute hover on landing (already a significant safety factor) adds about as much mass as a 2-second hold-down at launch, which is to say, not much at all. It does need efficient throttling, but I doubt that adds much mass.

    Nice description of the problem, for an English major. Integrate dv = -u dm/m - g dt for the powered descent scenareo and you will see the point. Open any dynamics book to find a discussion of the problem. Also LH2 is utterly wasteful for flight in the atmosphere. High thrust not high Isp is the solution to air drag.

  10. Don't be stupid on Study Claims Offshoring Doesn't Cost US Jobs · · Score: 1
    People are no less morally worthy because they live in Bangalore India rather than Bangor Maine. Sure it might suck if you lose your job because it moved overseas to India but it doesn't suck anymore than if you lost your job because it moved to another state.

    Not true at all. In the US labor is free to chase those jobs to strong markets. A construction worker in Maine is free to do construction work in Las Vegas, assuming he can get a job if he is a non-Hispanic. Most of the professional programmers on this forum can attest to that. They are not free to relocate to Bangalore. Tell your bullshit to a guy with a family who is about to lose his house, or to almost everyone else who have to switch jobs every 2 years to stay employed. I admire the US economy, but why should expect middle class professionals to take it up the ass and ask for more?

  11. Reason for 4 stages on Indian Rocket Blasts into Space · · Score: 4, Informative

    The US built LTV Scout used for stages, all solid motors. If you use lower Isp engines you tend to need more stages to loft the same payload.

  12. Re:Blue Origin Design on Blue Origin Building DC-X Lookalike · · Score: 1
    If you use a ballistic landing it tends to be a much harder landing, so you have to spend more on quality control to ensure that your craft is still structurally ok after each landing.

    Parachutes and skids are chosen for spacecraft because they are light and reliable. A stall landing of a craft with a square chute on skids is pretty benign. The DC-X experience (explosion) shows that high thrust landings on retractable legs is a needlessly unreliable and unsafe.

  13. Blue Origin Design on Blue Origin Building DC-X Lookalike · · Score: 3, Funny

    Powered ascent and descent results in a craft that is 4 times more massive than one that would reach the same altitude but land using a ballistic reentry and a parachute. You would not see Burt Rutan embrace an inefficient design like that.

  14. Re:Gross exaggeration on GM Working on Feasible Electric Car · · Score: 1

    Like you I put CO2 and some CH4 into the air. It is a by product of a thing called life. For eco-crazies such as your self are so uptight about CO2 emissions I invite you to hold your breath.

    P.S. I am enjoying the mild winter that my CO2 emissions have created.

  15. Re:Gross exaggeration on GM Working on Feasible Electric Car · · Score: 1
    what is your point?

    That I don't give a crap about gas mileage because gas is cheap.

  16. Re:Gross exaggeration on GM Working on Feasible Electric Car · · Score: 1
    Apart from that your SUV took much more energy to produce than my mine....

    Don't be so sure. I drive an Isuzu. Those Japanese can be darn efficient.

    The only reason that I didn't sell my car and bought a more energy efficient one is simple

    I am in the same situation with my car. We call it 'driving it into the ground', though I try to take good care of it. Next time around I will try to get a hybrid. One wonders what kinds of things go wrong when you have a car without a direct drive train.

  17. Gross exaggeration on GM Working on Feasible Electric Car · · Score: 1
    I'm trying to figure out if you are trying to brag with the efficiency of your SUV or if you are proud that you are wasting resources.

    I am pointing out that the parent was grossly exaggerating the low mileage of SUV's. What's the waste? My SUV gets me where I'm going safely and comfortably. Gas prices are plummeting. $2.06/gal this morning. When auto manufactures sell a viable hybrid alternative, I will buy it.

  18. Holy cow on GM Working on Feasible Electric Car · · Score: 1
    In practice the personal car is close enough to a holy cow in American politics that any suggestions of in any way limiting the God-Given-Rigth to drive 3MPG super-SUVs alone to work is akin to political suicide.

    That's sacred cow, Borat. But I mostly agree with what you say. For the record, my SUV gets 18 MPG.

  19. Bent on self-destruction on The Impact of Immigrant Innovators · · Score: 1
    Theirs, seeing as how so many of my "forefathers" were colonialists and slaveowners who built a society essentially on the backs of these same people. You "manifest destiny" forefather worshipping white supremacist trash. You and other racists are destined for hell.

    There is a significant block of American society bent on self-destruction. You will offer every orifice to any enemy for unfathomable reasons. Is is guilt? I can't change that. I can only vigorously defend the great ideals and institutions of America against lesser nations that would harm it. That is not racism, it is nationalism, and it is a good thing. God smiles on America.

  20. Accident of birth on The Impact of Immigrant Innovators · · Score: 1
    Why exactly should an accident of birth guarantee someone more wealth than another?

    One reason is that your parents choose to align themselves with a civil society that over many generations had improved itself far beyond lesser societies. They choose to cooperate in a nation of laws for the greater good, where people in poor countries do not. Your birth is an expression of your parent's optimism for the future of their society. If you were wise you would value that sacrafice. Most of the rest of the world lacks the inspiration of your forefathers. Don't want to defend the society you inherited?

    Illegal immigration is mainly one mediocre society (Mexico), with unique proximity to a successful one, exporting its poverty for a gain in remitances. It hurts our fellow citizens ability to make a decent living. Whose side are your on?

  21. Theoretical wave heights on Titan on Pictures of Titan's Lakes · · Score: 1
    There is also the question, 'How much wave action can one expect in this situation?'. On Earth there are huge mechanisms that drive wave action; lunar tides, atmospheric weather, geothermal activity, geophysical activity, etc.. How many of these driving mechanisms are actually present on Titan and are there any additional ones that we aren't ware of yet?

    I have been out of the planetary science business for a long time. I am not aware of any studies relating Titan's general circulation (which must be well known) to observable wave height on lakes. Does the low gravity, (presumably) high surface stress, and large lake size create large waves? The circulation is already known to be vigorous to produce ice-sand dunes. That would make an interesting Master's project. I don't think there are *any* other driving mechanisms other than wind.

  22. Re:Better 'rigid' than screwed on MySQL Changes License To Avoid GPLv3 · · Score: 1

    The mere threat of removal of important pieces of infrastructure is harmful to the free software community. It is needlessly disruptive, creates duplication of effort, and hobbles the advance of the state of the art. Disruptions have happened enough where I do not feel the need to recount them. Fortunately Richard Stallman has not been burned at the stake. Indeed his uncompromising attitude has benefited the community in enumerable ways. He is the Thomas Jefferson of software freedom and his legend continues to grow. Linus chooses not to participate in the debate. One cannot really blame him. Sitting on top of the kernel code base would make anyone seek simplification wherever possible. But his ambiguous, poorly conceived attitudes toward licensing and copyright issues have many of us wishing he would keep his mouth shut. But he is not a spiritual leader in any sense.

  23. Re:Cassini is cheap? on Pictures of Titan's Lakes · · Score: 1
    Better spatial resolution will help in detection of waves.

    My question is whether a wavy surface will reveal itself with its scattering characteristics with the current. There is some detectable radar return from the surface of the liquid. The travel time between the waves and troughs should create some dispersion in the travel time of the return signal.

  24. Better 'rigid' than screwed on MySQL Changes License To Avoid GPLv3 · · Score: 2, Insightful
    Good for them; I've never understood all the hoopla about licenses, anyway. FOSS has become way too rigid, IMO. What ever happened to "here's my software. here is (maybe) my source.

    How many times will the community be screwed by license chicanery before before you wise up: Tivo, Open Group X, XFree86/Xorg debocle, GIF, the Java Trap, Bitkeeper... Early GPL versions obviously assumed too much about reasonable community behavior. GPL v3 simply makes an attempt to spell things out more completely.

  25. Cassini is cheap? on Pictures of Titan's Lakes · · Score: 1
    Having noted this, 500 metres is kind of crappy resolution for SAR data. You'd think they'd make a closer flyby or put a better instrument onboard. I believe 1 (one) metre resolution SAR was available from instruments at the same altitude when cassini was designed. NASA just cheaped out.

    I have heard Cassini called a Cadillac, Battlestar Galactica,..., but never cheap! Increased spatial resolution won't help you see 50 km diameter lakes any better. The embayment relationships with topography are the same, as is the radar darkness of the lake surface. It might detect tributary streams. I suppose an extremely powerful radar might see waves on the lake surface. Cassini may even be able to detect those locally.