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User: MichaelSmith

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  1. Re:Was there ever doubt? on Probable Water Ice Sighted On Mars · · Score: 1

    Not as bad as brown snow though.

  2. Re:Was there ever doubt? on Probable Water Ice Sighted On Mars · · Score: 1

    Only if you separate the oxygen from the hydrogen first. That takes energy. Since the atmosphere is mostly carbon dioxide you might as well plan to split it into carbon and oxygen.

    I'm pretty sure the poster (and anyone else who would be browsing slashdot) knew that; the quote is from Dan Quayle, he's the one who needs help.

    Ah right thanks. I am not up to date on Dan Quayle quotes.

    I am surprised we didn't see him running for President this year ;)
  3. Re:CO2 on Probable Water Ice Sighted On Mars · · Score: 1

    Um, we know that dry ice (frozen CO2) is on the poles. Bright white chunks that sublimate are dry ice. Ice tends to be clear and rarely sublimates. It would most likely melt first then evaporate. How about next time you see bright white chunks you analyze them. (disclaimer: I did not RTFA of course)

    The air pressure is too low for ice to be liquid And the temperature is too high for CO2 to stay solid. There is a small overlap during the night where the atmosphere is cold enough for dry ice to form but the most you would get is a bit of frost.
  4. Re:what they should do on Probable Water Ice Sighted On Mars · · Score: 4, Funny

    I bet you could write about three thick books on that theme. You could pit a bunch of conservative geology types against power mad engineers with a small group of middle ground heroes in the middle

    But what would you call it. Something Mars. I know Red Mars, then the next book gets a slightly different name.

    The only problem is that the third book would probably run out of ideas about 10% of the way through.

    Maybe its not such a good idea to after all...

  5. Re:Was there ever doubt? on Probable Water Ice Sighted On Mars · · Score: 2, Interesting

    It's tremendously interesting to discover whether there's carbon-based fragments in the water (suggesting life did or could exist) and to figure out what else is in the water. This is too shallow to be fossil ice. It has to be brand new precipitated water. It should be pretty pure, unless something is living in the ice right now.
  6. Re:Ice Alright! on Probable Water Ice Sighted On Mars · · Score: 0, Redundant

    I am sure gin and tonic is available on Mars, but it might be known by a slightly different name.

  7. Re:Dry ice? on Probable Water Ice Sighted On Mars · · Score: 5, Informative

    In such a carbon dioxide rich atmosphere, how do we know it is water ice and not frozen CO2? What do we know of the Martian surface and subsurface temperatures? Its too warm for solid CO2. Even at night the temperature is barely cold enough for carbon dioxide to solidify.
  8. Re:Was there ever doubt? on Probable Water Ice Sighted On Mars · · Score: 1

    Indeed, we've known this for several presidential administrations: If there is water, that means there is oxygen. If oxygen, that means we can breathe. Only if you separate the oxygen from the hydrogen first. That takes energy. Since the atmosphere is mostly carbon dioxide you might as well plan to split it into carbon and oxygen.
  9. Re:Poor Design on Robotic Aircraft To Supply Troops · · Score: 2, Interesting

    It looks like an artists impression of a ground effect vehicle. The louvers in the fuselage look like a moller air car ducted hovercraft kind of thing.

    The ducted fan might be safe to operate from a dirt road because it is mounted high and somewhat unable to suck stones into the works.

    The idea seems to be to set up camp along a country road or remote strip. Call in the UAV, load/unload and relaunch it for a fast low altitude sprint to the next camp.

    Landing and takeoff would happen stalled at low speed with the downward pointing fan keeping it airborne. The wheels they have drawn are ridiculously small. Probably just clip art.

  10. Re:How stupid can you get? on Bell, SuperMicro Sued Over GPL · · Score: 1

    Oh don't even get me started on people's confusion regarding GPL. An engineer I worked with once told me that it is okay to incorporate GPL code into your code as long as you don't change it in the process. He pointed to part of the GPL which says:

    2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions:

    ..and took that to mean that as long as you don't change the code the GPL doesn't come into it.
  11. Re:Sydney Australia Radar on Replacement For Aging Doppler Radar Being Tested · · Score: 1

    B At that resolution, the best way to see if you're going to get rain is pretty much to look out the window. A new radar tower is supposedly in the works, I hope they hurry up! I use the same information in Melbourne. I often check it before riding my bike home, but I don't see a benefit in better resolution. The few big storms we have really are big (not tornadoes) and you can't really expect to avoid them. Normally when it rains it just rains everywhere and again, the radar isn't going to help you much.
  12. Re:Slow on Replacement For Aging Doppler Radar Being Tested · · Score: 2, Informative

    Suppose that doppler radar is slow, and that it takes 5 seconds for it to do a 360 degree sweep. Is a faster system going to improve the generally rubbish weather forecasts of "it might rain today"? If anything the slow rotation rate radar might be better for this application. Radars with short rotation periods are used in military applications where you need to see what is happening from second to second, and are increasingly being used in ATC applications.

    But those radars need special software and hardware to deal with the fact that the returning signal is going to be coming from a significantly different azimuth (relative to the radar head) from where it was transmitted.

    It is a lot of needless complexity and I really don't see why weather should need radars which rotate that fast.
  13. Re:I'll say it again. on AP Files 7 DMCA Takedowns Against Drudge Retort · · Score: 1

    Between Slashdot, Digg, and a handful of good porn sites, do we really need the rest of the intarweb? Nope, thats about it.
  14. Re:According to this bill on UCITA By the Back Door · · Score: 1

    If worse comes to worse you could start buying your software from Canada, or it might be as easy as ticking Canada as your country during the installation process... Or change the locale in your OS.
  15. Re:My bigest boneheaded move on Bone-Headed IT Mistakes · · Score: 1

    Should have called it AC

  16. Re:This is going nowhere. on Westinghouse Commits to Green Plug's Universal A.C. Adapter · · Score: 1

    But what if there is a DC-DC converter which doubles the input voltage and delivers it to the output? Sounds dangerous to me. Before you know the PC is outputting thousands of volts and you won't be able to switch it off.

  17. Re:This is going nowhere. on Westinghouse Commits to Green Plug's Universal A.C. Adapter · · Score: 1

    I had this experience with a motorolla mobile at my workplace. A windows system refused to supply charging current because it didn't have the driver for the phone. A linux system provided charging current, presumably without finding the right driver.

  18. Re:Now I think I've seen it all... on Denon's $499 Ethernet Cable · · Score: 1

    Now I get it. The arrows prevent stray signals coming in from the side.

  19. Re:Confession: on Denon's $499 Ethernet Cable · · Score: 1

    Flush it out with something loud.

  20. Re:datasheet on Denon's $499 Ethernet Cable · · Score: 1

    Be careful not to put the cable in the wrong way on a switch set to half duplex. Nothing would get through at all.

  21. Re:Evolution from Space on Genetic Building Blocks Found In Meteorite · · Score: 1

    was the title of a book by British astronomer Fred Hoyle and Chandra Wickramasinghe and when it made this same sort of claim it was laughed off as a crackpot theory.

    Guess they're being proven to have been right all those years ago... imjussayinisall The other day there was an article about the universe before the Big Bang and I thought that was heading towards Hoyle's Steady State theory.
  22. Re:Wow. on Genetic Building Blocks Found In Meteorite · · Score: 1

    Organic material coming here on comets and meteorites is perfectly plausible. But life coming from outside the solar system seems to be quite unlikely. I once read about rocks in Antarctia which, when cut open to get a cross section, have a line about a centimetre under the surface which is how far bacteria have penetrated into the rock.

    It could be that bacteria are commonly associated with rocks pretty much everywhere, and that new planets could be seeded by meteorites.
  23. Re:not a crash on Genetic Building Blocks Found In Meteorite · · Score: 2, Funny

    a meteorite that landed in Australia... landed you say? fascinating indeed. It was a heavy landing.
  24. Re:What does that mean? on Genetic Building Blocks Found In Meteorite · · Score: 1

    let's see. there's:

    -the unidentified artificial objects found inside numerous people who claim to have been abducted, which are not only not rejected by the body, but are integrated into the nervous system (apparently powered by bio-electricity, emitting unidentified signals until disconnected). Material they consist of is unknown

    -the subset of UFO related events which, though small, represent a considerable number, and are completely unexplainable.

    -the fact that so called "greys" are represented similarly in sketches worldwide, including those made by people in areas so remote and undeveloped they had no feasible exposure to modern media or pop culture.

    -the fact that modern ufo's show up in paintings from the renaissance, and earlier.

    the list goes on and on. Setting aside the validity or otherwise of the evidence you quote, how does it constitute evidence for extra terrestrial life?

    Even if the "greys" you describe exist, why do you think they are not native to Earth?
  25. Re:I'm interested in what excuse.. on Genetic Building Blocks Found In Meteorite · · Score: 2, Insightful

    The X files wasn't a documentary.