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Can Humans Survive Long-term Space Travel...

Discussion in 'Android Apps & Games' started by rootabaga, May 15, 2019.

  1. rootabaga

    rootabaga Android Enthusiast
    Thread Starter



  2. Dannydet

    Dannydet Extreme Android User

    As long as the ship has artificial gravity, humans should be able to live a natural lifespan.
    Without it, who knows...
     
  3. Hadron

    Hadron Smoke me a kipper...
    VIP Member

    Radiation shielding is needed as well - and is difficult since ships need to minimise mass.
     
    Dannydet likes this.
  4. Unforgiven

    Unforgiven ...eschew obfuscation...
    Moderator

    I went to a conference where Jerry Linenger spoke. He was on Mir for I think 6 months and he said in lost something like 30% of his bone mass. There were a lot of really interesting things, like he couldn't hold a cup of water when he first landed, he was afraid to hold his son.
     
  5. Dannydet

    Dannydet Extreme Android User

    Correct. Jerry Linenger is a friend of a friend of mine btw... Nice guy.
    He told us long term effects of weightlessness would be drastic and he's living proof of it.
     
  6. dontpanicbobby

    dontpanicbobby 100% That Guy
    VIP Member

    Couldn't the ship spin or is that b*ll*hit?
    How big a ship are we talking. I didnt read the article yet.
     
  7. Hadron

    Hadron Smoke me a kipper...
    VIP Member

    Rotation can create a pseudo-gravity effect, but you really want a large radius and slow rotation for best effect - small radius and rapid rotation will result in steep "gravity" gradients and severe Coriolis effects, which will be very uncomfortable.

    If you had a magic drive that could accelerate the ship at a constant 1g then there would be no issue. But right now "magic" is the correct word for that.
     
    bcrichster and Member2095118 like this.
  8. Unforgiven

    Unforgiven ...eschew obfuscation...
    Moderator

    Sooo, I'm no scientist of physicist like you, but I can do the logic thing. Wouldn't 1G constant acceleration require that you accelerate at 1G until the midpoint of the trip at which point you would need to decelerate at 1G in order to come to a complete stop at the destination. I suppose the other option would be a deceleration greater than 1G, but how much and for how long could the body take.
     
  9. bcrichster

    bcrichster ROMinator
    Moderator

    :thinking: Magic = Technology we don't yet understand.. :cool:
     
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  10. Hadron

    Hadron Smoke me a kipper...
    VIP Member

    Exactly right
     
    Unforgiven likes this.
  11. Unforgiven

    Unforgiven ...eschew obfuscation...
    Moderator

    The second half of your galactic flight sponsored by Lionel Richie. :p
     
    joe71, bcrichster and Hadron like this.
  12. dan330

    dan330 Extreme Android User

    did he ever 100% recover from the affects of living in space for extended time?

    recover the bone mass?
    muscle mass?

    or is he still... diminished from the experience?
     
  13. Dannydet

    Dannydet Extreme Android User

    He's back to being 100% health wise, bone mass is back to where it should be, muscles are back to normal, the recovery time took about a full year for being weightless for 6 months....
    But he was really scared when he came back to earth.
     
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  14. dan330

    dan330 Extreme Android User

    that is very interesting....

    i wonder.. if 10 yrs.. in 1/2 G .. travel to another solar system.. (with the magic rocket)
    would cause unrecoverable health situation?
     
  15. Hadron

    Hadron Smoke me a kipper...
    VIP Member

    0.5g is something we don't have much data on, and of course nobody has done much more than 2 years in microgravity (though I guess we will have data on whether effects level off by then). I think it's safe to assume that the reduced pull would have some effect, but wouldn't want to speculate beyond that.

    Anyone planning on living on Mars would find out though, since the gravitational force on the surface of Mars is about 38% of the Earth norm.
     
    Dannydet likes this.
  16. joe71

    joe71 Android Expert

    Okay I haven't the article yet, but if we are talking long term deep space travel like Star Trek, it's never going to happen, never ever, ever period. There is one simple reason for this. Superior advance space faring races have visited us and realize that humans are blood thirsty bunch of savages and need to be contained. The split second we travel beyond Mars, this Lazer beam will come out no where destroy the ship and that will end our space travel. We can barely take care of Earth.
     
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  17. dan330

    dan330 Extreme Android User

    LOL
     
  18. dan330

    dan330 Extreme Android User

    Living on Mars..

    i guess for long term ... over 5 yrs living on Mars.
    MY GUESS.... that would be a one way trip.
    the body would not be able to recover.

    if born on Mars... i dont think that person can survive on earth.
     
    joe71 likes this.
  19. Unforgiven

    Unforgiven ...eschew obfuscation...
    Moderator

    You know, that may be the gravity answer. Never returning to Earth (or a gravity greater than what your body adjusts to).
     
    Dannydet likes this.

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