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      CommentAuthorTrim
    • CommentTimeJul 15th 2020
     
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    Posted By: TrimGood or bad if it is?
    Very good indeed. Great for experiments.
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      CommentAuthorTrim
    • CommentTimeJul 15th 2020
     
    I agree, as long as it doesn't start moving inwards.
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    An Alternative to the Starship Suicide Dive
    https://www.youtube.com/watch?v=nubRxMwyNUU

    The combination of a Venus flyby plus a Mars elevator would speed colonisation up no end. And Elon is all about speed.
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      CommentAuthorAngus
    • CommentTimeJul 16th 2020
     
    That toke was forgivable but this is a different class of thing entirely...
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      CommentAuthorTrim
    • CommentTimeJul 16th 2020
     
    Thanks Drew nice find.

    I am glad he mentioned Phobos, Arthur Clarke did years ago.

    A Martian elevator makes sense to me but if mankind is planning to colonising Mars then we need to know what materials are available on the Martian moons, especially if any ice remains.

    If that exists it can be turned into methane and oxygen, fuel for the raptor engines, we know they have carbon and oxides which would be useful and other stuff which could be used as heat shields.

    If the elevator is turned down and there is no ice on the moons, then the oxides can be turned into liquid oxygen and combined with any available light metal to make an autophage rocket using metal instead of plastic to land stuff on Mars or the oxygen can just be used as a propellant with energy beams supplying the power needed.
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      CommentAuthorTrim
    • CommentTimeJul 16th 2020
     
    Being so close to the asteroids Mars might have more meteors which might damage the elevator.
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      CommentAuthorTrim
    • CommentTimeJul 16th 2020
     
    A very small black hole?
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      CommentAuthorTrim
    • CommentTimeJul 17th 2020
     
    Brit nuclear rocket engine could HALF journey time to Mars – and Made in Chelsea star founder promises 500,000mph speeds.

    https://www.thesun.co.uk/tech/12131951/british-nuclear-rocket-engine-mars-made-in-chelsea/
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    https://www.centauri-dreams.org/2020/07/17/the-cathedral-and-the-starship-learning-from-the-middle-ages-for-future-long-duration-projects/

    An evocative concept to be sure, although I've never been a big fan of generation ships - generations of trip time as opposed to build time, that is (the two do correlate). Being at heart an optimist, I figure we'll always be coming up with a better, faster way to both design and propel ships, and thus extended build projects are almost doomed to fail.

    Doomed I say; doomed!
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      CommentAuthorTrim
    • CommentTimeJul 17th 2020
     
    "Brains in bottles" can in theory be kept alive for quite a long time especially in a so called cold coma or topour with automatic biological repairs en route so journeys lasting several hundred years can be undertaken.

    Nearly as good as cryonics but much easier.
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      CommentAuthorAngus
    • CommentTimeJul 17th 2020
     
    I hope they don't keep my brain in a bottle topour.
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      CommentAuthorTrim
    • CommentTimeJul 17th 2020
     
    Thanks I thought torpor was an American spelling.

    As the brain doesn't feel pain, especially at 4c any needed improvements won't be noticed until regaining conscious, if then.
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    If the brain doesn't feel pain... what does?
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      CommentAuthoraber0der
    • CommentTimeJul 17th 2020 edited
     
    Dr. Mengele
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      CommentAuthorTrim
    • CommentTimeJul 21st 2020
     
    The volcanoes on Venus aren't dead, say astroboffins, they're merely resting, pining for the planet's lava fjords.

    https://www.theregister.com/2020/07/21/volcanoes_on_venus/
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      CommentAuthorTrim
    • CommentTimeJul 21st 2020
     
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      CommentAuthorTrim
    • CommentTimeJul 25th 2020
     
    Microgravity Will Change How We Make Everything - YouTube.

    https://m.youtube.com/watch?v=fUj1-cPaFgo
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    But now everything floats away unless tied "down". Not a particularly useful characteristic.