Interplanetary travel!

Discussion in 'Astronomy, Exobiology, & Cosmology' started by darksidZz, Mar 6, 2007.

?

I say...

Poll closed Mar 26, 2007.
  1. It's impossible! We'll never have the ability to!

    8.7%
  2. It's not impossible! We'll have it eventually!

    91.3%
  1. Singularity Banned Banned

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    How many G's are generated in the particle accelerator on the particle reaching near light speeds in that smaller radius.
     
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  3. draqon Banned Banned

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  7. iam Banned Banned

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    With evolution, the more time spent in space the more the body should adapt.

    Just as our ancestors left the oceans and evolved lungs in place of gills to adapt. As we leave our atmosphere, it might be possible to become a whole new type of species.

    Think "alien" but realistically a lot less cool, no acid for blood etc.
     
  8. MetaKron Registered Senior Member

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    5,502
    We have had the capability since the 1960s. NERVA and other nuclear rockets may not have quite lived up to design specs but they would have got us there.
     
  9. iceaura Valued Senior Member

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    Evolution would take generations - the first generation would be dead without reproducing.

    The cosmic ray problem is very serious - I have seen no solution. It will probably prevent travel even to Mars - except maybe by suicides.

    If we have enough power to reach other systems, we maybe have enough to take a little extra time about it, and bring a large planetoid along. That might solve the ray problem.
     
  10. orcot Valued Senior Member

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    Offcourse the space inhabitants are almost always guy's these days and they do not allow alcohol on the space station.

    Annyway radiation is a bitch but perhaps it would help if they keep the fuel thanks towards to sun, if that doesn't increase to much of a extra boil of. A couple of liters of pure hydrogen proberly stops a lot of radiation. there more high tech solutions but those are more scifi
     
  11. Singularity Banned Banned

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    Form which direction does the cosmic radiation come from ?

    And dont the nuclear power stations or Nuke people use Radiation proof suits ?

    BTW didnt we go to the Moon and had no cancers yet ? so why worry.
     
  12. Nickelodeon Banned Banned

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    Didnt one of the guys on Apollo 13 die from cancer eventually?

    Although whether that was related to the mission or not is debatable.
     
  13. Pete It's not rocket surgery Moderator

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    Hi Singularity,
    I'm pretty sure that high energy cosmic rays (the dangerous ones) come from all directions.

    The chances of getting cancer will depend on the time of exposure - a mission to Mars lasting a year is going to be twenty times worse than a Moon mission lasted a couple of weeks.
     
  14. orcot Valued Senior Member

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  15. Singularity Banned Banned

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  16. eburacum45 Valued Senior Member

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    1,297
    Cosmic rays come from the Sun, from sources in our Galaxy (neutron stars, black holes) and from sources outside our galaxy. The Solar ones are weakest, the extragalactic ones most powerful.

    If we protect against the weaker rays by locating the living quarters of interplanetary ships between the water tanks for instance, the rarer and higher energy rays will still get through. A massive magnetic or electric field would be required to deflect all rays; this would take a lot of energy to run, and would interfere with the operation of sensitive on-board equipment.

    I think the final answer will be a medical or biotechnological one; if shielding protects against all events except a few high-energy events, we will have to develop medical strategies to deal with the consequences of those events. It wil be necessary to have a way of repairing the genetic damage caused by these localised events, perhaps taking a tip or two from the radiation-tolerant extremophile bacteria.

    Computer databases and other high-tech equipment will also need to be repairable, which can be done by having at least two backups of every system. A triply redundant system could resist cosmic ray damage for an extremely long time.
     
  17. Singularity Banned Banned

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    Is the Cosmic Radiation coming at Light speeds ?

    If not then it may be possible to detect it coming before it reaches, and use some shield (magnetic) enable only at that instance when it would hit us.

    Though all this seems too far fetched.
     
  18. orcot Valued Senior Member

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    2 things super conductivity and farady cage
     
  19. darksidZz Valued Senior Member

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    There is no way we'll achieve interstellar travel, give it up!
     
  20. Singularity Banned Banned

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  21. orcot Valued Senior Member

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    It would be funny if people started on mars as cavemen
     
  22. eburacum45 Valued Senior Member

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    The protons which form the high energy cosmic rays travel a tiny bit slower than light. The highest energy ray yet detected would arrive a few nanometres behind a photon which left at the same time, after a journey of one light year. So there is little chance that any warning system would give us any more than a few femtoseconds warning.
     
  23. orcot Valued Senior Member

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    wouldn't that increase it's mass many times due to to being as close to c it's over 99.99999%?
     

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