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User: mdsolar

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  1. Re:Panspermia on NASA Confirms Discovery of Organism With Phosphorus-Free DNA · · Score: 1

    Indeed but it was an interesting speculation in the new conference that it might work better at colder temperatures.

  2. Panspermia on NASA Confirms Discovery of Organism With Phosphorus-Free DNA · · Score: 1

    I recall one of the arguments against panspermia, the origin of life from space and particularly molecular clouds, was a lack of phosphorus (a lithophile). Interesting that phosphorus deficit is part of this experiment.

  3. Two issues on Sahara Solar To Power Half the World By 2050 · · Score: 2

    I see two problems with this approach. First, there is not much point is using desert sand. Silicon can be shipped 200 times further than coal before you get close to the same energy loss. Take the silicon from where it is easiest. Also, take the process energy from where it is easiest, usually hydro power. No need for extra research. Second, there is no need for superconducting transmission. High voltage transmission will do the job. In that part of the world, solar islands may turn out to be the best approach: http://www.solar-islands.com/

  4. Shared a plane with Senator Palpatine once on Wikileaks Booted From Amazon · · Score: 1

    I shared a plane with the Senator one time. His skin seemed to glow is was so smooth. But perhaps Master Windu will be coming for him now.

  5. Secure the stuff on Sarah Palin 'Target WikiLeaks Like Taliban' · · Score: 1

    It was the Pentagon that failed to secure this material. I'd rather see it on wikileaks and know what is compromised than not know what some foreign intelligence agency has acquired. Wikileaks shows us the security holes we have while also showing us the scope of required damage control. Thanks to wikileaks for decoy work.

    Palin had some of her email posted on wikileaks a while back but really she should have secured here account better since her password was guessed from publicly available information. The emails would have ended up in a tabloid if they had not gone to wikileaks. She is just confused I think.

  6. RTFA on Earth's Water Didn't Come From Outer Space · · Score: 3, Informative

    Reading the conclusions of the fine article, I notice "...the more probable source for early water oceans [on Earth] is the collapse of the planet's steam atmosphere..." and "... these oceans may not persist over billions of years on smaller planets against the processes of atmospheric escape and continuing impact blow-off..."

    It is a clue also that the title is about early oceans. This paper has nothing to do with the origin of Earth's present oceans but rather discusses early, pre-bombardment phase water and also more massive rocky planets.

  7. Re:Honor Code on Shadow Scholar Details Student Cheating · · Score: 1

    A place where an honor code works very well is in the game of Ultimate: http://en.wikipedia.org/wiki/Ultimate_(sport)#Spirit_of_the_Game

    Players call fouls against themselves. I remember getting help with typing in HS though you would have hated me as a customer because I had to be there to decipher what was to be typed.

  8. Honor Code on Shadow Scholar Details Student Cheating · · Score: 1

    I went to a college with a signed honor code that obligated you to turn in cheaters. I had a great deal of difficulty signing it because I was not sure I could turn in a friend. With perspective, I realize that turning in a cheater may turn their life around and future chances are better for that person. More extensive use of honor codes might help this situation.

  9. Under Scienced on James Webb Space Telescope Cost Overruns Adding Up · · Score: 1

    It strikes me that JWST has already been descoped so the project is not so much over budget as under scienced. In the long run, we are going to need a bigger telescope with better mid-infrared capability, possibly an interferometer. So, let's consider this a prototype and any budget issues are just part of the learning curve.

  10. Re:Oh, I thought you said science on 2010 Election Results Are In · · Score: 1

    Revkin does seem to be under the spell of the kooky Breakthrough Institute. But, he is arguing for basic research rather that development support.

  11. Revkin sees threat to science on 2010 Election Results Are In · · Score: 2, Funny

    Andy Revkin, former NYT science reporter, sees a threat to science in the election results. http://dotearth.blogs.nytimes.com/2010/11/03/the-real-threat-to-science-in-the-new-political-climate/

  12. The Decision on Texas Supreme Court Cites Mr. Spock · · Score: 2, Informative
  13. Fear and hoplessness? on Researchers Find a 'Liberal Gene' · · Score: 1

    So conservatives are just frightened bully victims? Maybe that explains a bit. The people who are liberal and have the gene had friends in adolescence which may have protected them from bullies.

  14. Conservatives with freinds defective? on Researchers Find a 'Liberal Gene' · · Score: 1

    Not really, it could just mean that conservatives who had friends as adolescents are genetically defective ;-)

  15. Re:They don't deny it! on Global Warming's Silver Lining For the Arctic Rim · · Score: 2, Insightful

    He makes a blankest statement and it is refuted by a single instance. Glass recycling also saves energy. Paper recycling saves trees. That is the majority. Nothing vast left. So?

  16. Re:Hansen on Global Warming's Silver Lining For the Arctic Rim · · Score: 1

    Son, I told you to go to the library, not the book store.

  17. Hansen on Global Warming's Silver Lining For the Arctic Rim · · Score: 1

    Then continue in your ignorance. But for anyone else reading, Hansen predicts a water vapor based runaway just as must have occurred on Venus. You might want to find out who wrote the book on Venus when you get a chance even though you love ignorance and hate knowledge.

  18. Re:Who is questioning it exactly? on Global Warming's Silver Lining For the Arctic Rim · · Score: 2, Informative

    In Chapter Ten of James Hansen's book 'Storms of my Grandchildren' he says that a Venus Syndrome runaway is a dead certainty should we consume all fossil fuels including tar sands and shale oil. And, he gives justification for this including answering your argument. You should go to the library and read it. http://www.stormsofmygrandchildren.com/storms_of_my_grandchildren.html

  19. Standard of living on Global Warming's Silver Lining For the Arctic Rim · · Score: 1

    Since a lot of measures that help reduce potential warming actually save money, there are people who are improving their standard of living as a result of doing something to help.

  20. Re:They don't deny it! on Global Warming's Silver Lining For the Arctic Rim · · Score: 4, Informative

    You've got this quite wrong. Aluminum recycling is a stunning example of your error. http://en.wikipedia.org/wiki/Aluminium_recycling

  21. Re:Can a galaxy form in such a short period of tim on Record-Breaking Galaxy Found In Deep Hubble Image · · Score: 2, Informative

    Yes. The fluctuations in density seen in the cosmic microwave background are large enough that some can collapse under gravity to galaxy massed globs within a few hundred million years. What has been more of a mystery is how stars can form since gas needs to cool to condense enough to form stars and big bang gas is very clean and has a hard time cooling radiatively. One might think that only very massive stars might form but then this would never dirty up the gas since they would soon collapse to back holes and never release processed material back to their surroundings. However, pair instability supernovae disrupt their cores when they explode and likely seed protogalaxies particularly with oxygen which, when combined with abundant hydrogen, can form ice and allow normal cooling of gas for star formation. One bit of evidence that ice is important comes from the infrared emission of an early quasar: http://adsabs.harvard.edu/abs/2008ApJ...686..251D

  22. Re:Nuclear would do fine too ... on Economy Puts US Nuclear Reactors Back In Doubt · · Score: 1

    Now that's just silly.

  23. Re:Nuclear would do fine too ... on Economy Puts US Nuclear Reactors Back In Doubt · · Score: 1

    Looks like solar is cheaper than coal now: http://cleantechnica.com/2010/10/17/silicon-solar-thin-film-manufactured-for-under-0-70-cents-a-watt-by-swiss-co/ also more conventionally: http://green.blogs.nytimes.com/2010/10/19/a-cheaper-route-to-solar-cells/ Compared to 4 or more times more expensive that coal for new nuclear power, that is vastly superior. Wind is much cheaper than nuclear power as well.

  24. Re:Nuclear would do fine too ... on Economy Puts US Nuclear Reactors Back In Doubt · · Score: 1

    That's just silly. Nukes are an expensive frivolity. Doesn't mean there are no superior alternatives.

  25. Re:Nuclear would do fine too ... on Economy Puts US Nuclear Reactors Back In Doubt · · Score: 1

    Which returns to to point of the article. There is no point since nuclear power is too expensive. Doubtful though that nukes can be built to avoid all risk and any increase in their use tends to increase the frequency of large accidents (or incidents which are not accidents). Our best path is to shut down all reactors now.