Recent content by JamesG

  1. J

    Alpha Centauri / Proxima Centauri

    Eh? Actually I am purely speculating, since our factual knowledge of xenoplanetology literally fills a single page... But YOU show me where I am wrong instead of simply arguing with me. The fish people of some aquatic world in the universe would probably disagree with you. How is that...
  2. J

    Alpha Centauri / Proxima Centauri

    Are you looking for a formal thesis on it? Ser'sly. Why should I spend my time educating you on such basic things when you can take a 20 second Google search and find the same information? Do you argue that M class red dwarf stars are variable flare stars? Do you argue that said stars...
  3. J

    Alpha Centauri / Proxima Centauri

    I guess everyone is entitled to their own opinion.
  4. J

    Alpha Centauri / Proxima Centauri

    You don't believe me? Or are you just to lazy to go look it up yourself? Eh? Life is life. "habitable" is all in how you define it, and an aquatic environment is usually much more benign than space. For the majoirity of its existance on Earth, life here was nothing more than single celled...
  5. J

    Alpha Centauri / Proxima Centauri

    I think you are underestimating how nasty a variable star is. A superflare (or even a regular flare) at Promima's habitable zone (less than half an AU) would ionize the atmosphere and boil off any free water present. Over time, they would leave any otherwise Earth-analog world barren and hard...
  6. J

    Have Prototyper, will print your model and send it for free!

    Oh, ok I somehow got redirected into a automated lasercutter and lathe page. That would be tough. It wouldn't be hard to rig up a machine to take XYZ measurements of a shape, but I think you final mesh would look like the typical MS Word generated web page... It wouldn't really be a verbatim...
  7. J

    Have Prototyper, will print your model and send it for free!

    A few hundred dollars vs $14,900* USD. You get what you pay for. Does anyone else find the use of the term "printing" in this context annoying? I understand how to term got started in use (from sci-fi and from the use of printer HW and drivers). But you aren't "printing" its CNC...
  8. J

    Orbinaut's conference

    Probably the best you can hope for is a virtual meeting such as on Second Life or the like. In that regard, this Forum is quite close to that... For USAians an event like Oshkosh or a KSC launch would be a good focal point to have a physical meet-up.
  9. J

    Have Prototyper, will print your model and send it for free!

    I guess you could, not sure how Ammonium Perchlorate would respond to being machined though...
  10. J

    Have Prototyper, will print your model and send it for free!

    Because then they would be available for other people to d/l and fabricate.
  11. J

    Alpha Centauri / Proxima Centauri

    If a red dwarf had a Jovian companion it would have oscillation and at our range we would be able to see it. That means little stuff, either not much, or lots of small bodies (< Earth) evenly spaced around it. It would make a great refueling stop for the Sol to Alpha Centauri run (assuming...
  12. J

    Alpha Centauri / Proxima Centauri

    No problem at all except for getting randomly fried by hard radiation and stellar plasma whenever your star has a spasm. :lol:
  13. J

    Alpha Centauri / Proxima Centauri

    Yeah. But unfortunately as a variable "flare" star, its probably burned off most of the volitiles in its habitable zone, and any of its planets are pretty crispy.
  14. J

    Alpha Centauri / Proxima Centauri

    Proxima isn't diffinitively part of Centauri AB. Its orbital period is so long that we haven't tracked its orbit or velocity enough to know if its truly captive, passing by, or just hanging out in the neihborhood. Either way, its far enough away to have its own system of planets. Ought to...
  15. J

    NY Times: Is Manned Spaceflight Obsolete?

    At least as long as there are still wires in spacecraft. Yes, but there are bound to be alloys and properties that are unique to non-terrestrial processes. micro-g crystals and readily available hard vacuum are the most often described. Sadly true.
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