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      CommentAuthorTrim
    • CommentTimeJul 23rd 2014 edited
     
    Are there any near Venus asteroids?

    NVA's

    Don't all answer at once.

    Yes.

    W

    List of Venus-crossing minor planets.

    http://en.wikipedia.org/wiki/List_of_Venus-crossing_minor_planets
  1.  
    It what not near at that?
    OIC.
    Surely - why not? Which might make them NEAs too. As for Mercury...dunno

    Now I do
    http://en.wikipedia.org/wiki/List_of_Mercury-crossing_minor_planets
    Blimey

    Might be a cheap way to get the deltaV. All at once. Ouch
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      CommentAuthorTrim
    • CommentTimeJul 23rd 2014
     
    Could come in handy put some small ones or just boulders of big ones into a polar orbit of Venus and gradually increase the mass so you could build a rotating tether to help import and export stuff to and from Venus.
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      CommentAuthorAngus
    • CommentTimeJul 23rd 2014
     
    Posted By: Trimgradually increase the mass


    Give 'er another notch on the mass increaser there, Trimbo.
    •  
      CommentAuthorTrim
    • CommentTimeJul 23rd 2014
     
    OK, just feed Angus some more junk food.
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014 edited
     
    Po

    Mad idea indeed!!

    Another, equally mad idea would be to build floating cities high up in the atmosphere of Venus. They would need to contain factories which sucked carbon dioxide from the atmosphere and split it into carbon and oxygen. The carbon would be made into graphene structures, and the oxygen would become the lifting gas to keep the cities


    How do we terraform Venus?

    http://phys.org/news/2014-07-terraform-venus.html
  2.  
    Being an obviously overweight chap, my advice to you is to wear looser fitting clothes. You look like a bald wiener. Normally this would not matter, but since you're discussing really interesting stuff, being an obvious non-scientist AND stuffing yourself into clothing obviously not designed for you is distracting, to say the least. Clean up your act
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014
     
  3.  
    Yeah in 2006. Brian Wang.
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014
     
    CD

    A Spacecraft in Your Pocket.

    http://www.centauri-dreams.org/?p=31143
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014 edited
     
    CD

    Sprites: A Chip-Sized Spacecraft Solution.

    http://www.centauri-dreams.org/?p=31076


    ‘Smart Pellets’ and Interstellar Propulsion.

    http://www.centauri-dreams.org/?p=31062

    Clifford Singer: Propulsion by Pellet Stream.

    http://www.centauri-dreams.org/?p=31057

    Interstellar Journey: Shrinking the Probe.

    http://www.centauri-dreams.org/?p=31049
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      CommentAuthoralsetalokin
    • CommentTimeJul 26th 2014 edited
     
    With every one of those ideas, the Great Silence becomes even more eerie.

    The galaxy should be full of self-replicating microprobes zipping about everywhere. Any planet you can see should be littered with their tiny discarded micrometeorite-pocked hulls and fire-scarred gelcoats. The aether should be filled with the stochastic noise which represents their communication encoding modality. Their drive nexuses should be emitting gamma bursts that can be detected across the entire galaxy. Their planet-altering and even star-manipulating engineering activities might even be detectable across intergalactic space.

    But they just don't seem to be out there. The most coherent answer to the problem seems to be that life is incredibly rare and we are the first life form to develop technology in this Galaxy and maybe in the whole light-cone-bounded portion of the Universe that is ours.
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014
     
    Is that good or bad?
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014
     
    CD

    Comment on the Interstellar Journey: Shrinking the probe by jamesmessig July 14, 2014 at 11:29

    Way out man.



    Another interesting take on all of this Paul would involve quantum computers.

    Accordingly, a quantum computer would calculate from deterministic principles the precise energy state of a location on a planet billions of light-years away. The energy state of that location would be replicated back here around o’l Sol.

    Next, the duplicated energy state would be made indistinguishable from the remote version. Alternatively, both versions would become quantum-mechanically enmeshed so that they evolve identically in time.

    The end result would be a superluminal teleportation to the remote location, or a real-time surveillance of the remote system back here in our solar system.

    It may be possible that a classical state evolution simulator could make a very close approximate duplication. Perhaps the degree of enmeshment would be a function of the fidelity of the duplication. Lower fidelity would result in a cloud like or “mist-like” presence, and perfect fidelity would actually cause the person doing the viewing to arrive at the distant location.

    I’m not saying any of this is possible, but we should be open to all kinds of possibilities for enabling true interstellar travel.

    Einstein would have held that the entire past, present, and future history of the universe in all of its details could be computed and predicted retroactively and pro-actively. I also tend toward being a “God does not play dice.” kind of guy even amongst the EPR paradox phenomenon. But my thoughts on that are a different topic altogether.
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      CommentAuthorTrim
    • CommentTimeJul 26th 2014 edited
     
    KS Fully funded in 2011

    KickSat -- Your personal spacecraft in space!

    https://www.kickstarter.com/projects/zacinaction/kicksat-your-personal-spacecraft-in-space
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      CommentAuthorAngus
    • CommentTimeJul 26th 2014
     
    Posted By: TrimIs that good or bad?


    Arthur Clarke explained this: Yes.
  4.  
    Posted By: alsetalokinWith every one of those ideas, the Great Silence becomes even more eerie
    Yeah, it's weird. I'm ploughing very slowly through Brin's "Silence" paper right now (I posted the link recently) and so this is uppermost in what I laughingly refer to as my mind. In fact, I wanted to discuss it last night down the pub but got sidetracked. Calcs on colonising (with reproducing ships) the whole galaxy at ~10% c say something like 100 million years accounting for a 70 year lifetime, or just one million years with replicating von Neumann probes. That's blitzschnell in comparison with the timescales involved. And it's severely sub-light.

    The Milky Way is 13.2 BY old. It took us 4.2 BY to evolve to being spacefaring (almost) counting from the birth of this solar system. Assume we're typical. So the earliest this "replicating probes" process could have kicked off in this galaxy is 9 BY ago. Assume 1 BY is the average lifetime of such civilisations in the spacefaring state. And they do it in parallel, if they exist. As you imply, there's loads of time for this process to have occurred - and many times over.

    Perhaps after all we are The First Ones
  5.  
    Imply? ImPLY? Hey, that's a lot more than a mere _implication_.

    It's a full-on conjecture.


    But there are other possibilities too and you know what they are. Still, they seem even less likely to me than "primogeniture".
  6.  
    Yeah, they all go inhabit subspace (Trim will explain what that is) or they all ascend (Angus will explain what that is).

    But you are right. The galaxy should be teeming with probes and/or ET by now.
  7.  
    The orderly march of progress in a Universe teeming with life, popping when ripe into technological sentience and go-forthing into the wild beyond, is unexciting. It is much more fun to imagine all the whys that we don't see the Friends from Space, like subspace or ascension or berserkers or quarantine or informational diseases or dot dot dot.