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User: barakn

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  1. you're not the only one to think so on US & Russia Pencil in Mars Launch by 2018 · · Score: 1
  2. Re:Some Links that might be interesting, too on US & Russia Pencil in Mars Launch by 2018 · · Score: 1

    If NASA estimated $300 billion, the actual cost will be over a $ trillion.

  3. Re:Actually... on Stupid Censorship, Stupid Security · · Score: 2, Insightful

    There's nothing more fundamental to the concepts of Liberty and Freedom than conformism.... not.

  4. Not biological on NASA Selects Mars Landing Sites · · Score: 2, Informative

    Gray hematite can precipitate out of hotsprings here on Earth, and spectroscopic evidence has been found of gray hematite on Mars. NASA is looking for evidence of ancient hotsprings on Mars, which would only point to liquid water, not life.

  5. Re:Hematite? on NASA Selects Mars Landing Sites · · Score: 1

    The problem with Creationists is that they'll post without knowing what they are talking about. Gray hematite can precipitate out of hotsprings here on Earth, and spectroscopic evidence has been found of gray hematite on Mars. NASA is looking for evidence of ancient hotsprings on Mars. The Martian meteorite has nothing to do with it. young-earth's post should be modded Overrated.

  6. Re:I hope they remember... on Russian Scientists Plan Simulated Mission to Mars · · Score: 4, Funny
    If they had a mechanical problem that they needed to msg home for help on how to fix for example, they'd have to wait many minutes before they got the info.

    That's what happens when you call up just about any hardware or software support/customer-service department on the planet. You could save a lot of money by just interviewing Microsoft customers.

  7. more on New Service from NOAA - Real-Time Solar Imaging · · Score: 3, Informative

    The SXI data has been available for weeks. It replaces x-ray images which were on the Internet for years from the Yohkoh satellite until it saw one too many eclipses and spun out of control in Dec. 2001. Other near-real-time (or at least daily) images of the sun can be found in numerous places: SOHO and SXI are not the only sources. And there already are predictions of solar events.

  8. Re: Yikes on Unlocking Alzheimer's Mysteries · · Score: 2, Informative

    Perhaps you should have looked at the second page of the article. It briefly mentions the trial of a vaccine against amyloid. Unfortunately some people died, but the treatment may still be helping the other recipients in the study. Your characterization of a vaccine is incomplete. They also work against bacteria (Anthrax, Botulism, Cholera, Tetanus, etc.) and have been employed against cancer (with limited results to date). Antisera are commonly used against toxins from Black Widows, snakes, etc.. And work continues on vaccines against some of the eukaryotic diseases like malaria. Vaccines have a great medical potential that has only been partially realized.

  9. Yikes on Unlocking Alzheimer's Mysteries · · Score: 3, Funny
    I found myself wondering how the CSF was transported all the way from the brain to the peritoneum, and then I saw the diagram of the tube that runs underneath the skin.

    "Wow, grandpa, you're ripped. Look at that vein in your pectoral muscle.... wait, that's not a vein! Gross!"

    I hope they perfect the anti-amyloid vaccines.

  10. Re:There are four? on Fourth and Final 'Great Observatory' To Launch Soon · · Score: 3, Informative

    Interferometers in space will experience less noise than down here and can be made much larger. In particular, instruments for gravity wave detection like LISA, which will be 5 million km on a side. And the other 2 are great observatories are the Chandra X-Ray Observatory and the Compton Gamma Ray Observatory. You never wanted X-ray glasses?

  11. Re:Speaking of Jurassic Park on Cloning Endangered Species · · Score: 2, Insightful

    #1, it's Crichton. #2, I read Jurassic Park long before it became a movie. I thought the science in it was extremely weak. In fact Jurassic Park convinced me that Crichton had stopped writing novels and was now selling screen plays masquerading as books. The "science" in Jurassic Park was merely a plot device to allow dinosaurs to run around chomping people: great Hollywood fodder.

  12. Re:Fusion isn't clean on Sandia Labs Takes First Steps Toward Fusion · · Score: 1

    Please tell me of "the radioactivity of deuterium" because I've never heard of it.

  13. Re:Well... keep fingers crossed on Hypernova Erupts as Global Telescopes Scramble · · Score: 1

    I''ll use my fingers for better purposes. GRBs are special events. GRBs caused by hypernovas would look like supernovas to 499 observers out of 500. The one (un)lucky observer would be in the path of one of the two thin jets emitted by the hypernova. These are jets of material traveling at relativistic speeds. When the material decelerates and releases EM radiation, it is all emitted in the direction of the jet (the relativistic headlight effect). Unless the jet is pointed straight at you, it is almost impossible to detect. An event like this is not going to sterilize a galaxy.

  14. Re:In the make you wonder department. on Hypernova Erupts as Global Telescopes Scramble · · Score: 1

    You guys are confusing a star lighting up its nebula in our own galaxy with a hypernova in a distant galaxy. I'd mod you off-topic.

  15. Re:The actual facts on Still More on Global Warming · · Score: 1

    You flunked your own quiz! That's what happens when you make up facts out of the clear blue sky. Any google search on the global carbon cycle will come up with simple models of the carbon cycle. Almost all of them leave out volcanism because it is such a minor source. The only one I could find with it is on page 9 of this pdf. It shows that the greatest source is from the ocean surface (90 Gtons). The flux from volcanism is only .00044 times this amount. The carbon dioxide flux from rocks is larger than from volcanism, but is still only .0067 times the oceanic contribution.

  16. Whoops? on Still More on Global Warming · · Score: 3, Informative

    The sun is getting brighter. Also, there is a remarkable correlation between solar activity and climate, like the Maunder minimum (cessation of sunspot cycle) coinciding with the Little Ice Age in Europe. If the sun does have an influence on climate, then the problem is not outside the area of expertise of astrophysicists. This current study doesn't rule out the role of solar variability, and actually makes it a stronger argument.

  17. Re:Other uses for the powerful technology? on New Satellites of Jupiter Discovered · · Score: 1

    ....unless you have a fairly good idea of where your "comets and asteroids" are going to be in the first place, like stuck in orbit around Jupiter.

  18. Re:Astroturtle? on Hubble Captures a Protoplanetary Disk · · Score: 1

    It is a reference to Terry Pratchett's Discworld, which rests on the backs of four elephants who stand on the back of A'Tuin, the Great Turtle.

  19. Re:Cool, but what is the practical application? on A New Spin On Physical Phenomena · · Score: 1

    Atomic clocks did not result from the discovery of uranium's radioactivity. In fact, they don't involve radioactivity at all. Here's a link that explains how they work. They are called 'atomic' because they rely on electronic transitions in isolated atoms

  20. Re:What I have always been wondering.. on Contractor Proposes Laser Rifles for US Military · · Score: 2, Interesting

    Inevitably a soldier's laser rifle will get blown up (most likely by friendly fire, judging by the current state of things). There would suddenly be an invisible radioactive hotspot on the battlefield and drifting plumes of radioactive particles. Would all soldiers be forced to carry geiger counters? Would medics refuse to treat contaminated soldiers? Will chem/bio/rad suits become the permanent uniform of our fighting forces?

  21. Re:4 million barrels? on From Turkey Guts to Fuel Oil · · Score: 1

    It said 4 billion.

  22. Re:depolymerization? on From Turkey Guts to Fuel Oil · · Score: 2, Informative

    Biological polymers--protein, complex carbs (glycogen, starches, cellulose, etc.), DNA, RNA. After you remove the water, most of it seems to be polymer.

  23. Re:Moo on Light Slowed Down To 127 mph · · Score: 1
    Remove all the air (such as with a match)

    Translation: Take each carbohydrate in the match's cellulosic contents, combine with 6 oxygens from the air, and then release 6 carbon dioxides and 12 water molecules. Slap yourself on the forehead for having created more air.

  24. Re:They'd better not! on Antibody Food Spices · · Score: 1

    What doesn't kill you makes you stronger, eh? That'll work until something kills you. Like trichinosis from raw swine.

  25. SIRTF on NASA Prepares The SIRTF For Launch · · Score: 1

    The launch of the last of the 4 "Great Observatories," already greatly delayed, has been bumped back by a military satellite and is being used to test a rocket? Sounds like messed up priorities to me. I have been impatiently waiting for images of "the old, the cold, and the dirty."