Space Travel

Discussion in 'Science and Technology' started by Big Brother, Oct 1, 2010.

  1. Big Brother
    Offline

    Big Brother Rookie

    Joined:
    Oct 1, 2010
    Messages:
    3
    Thanks Received:
    2
    Trophy Points:
    1
    Ratings:
    +2
    This is my first post and I figured I start a thread over the reason I found this site.......

    Space Travel....during the Cold War era the US made leaps and bounds into the wide Universe of space travel. This seemingly exponential growth ended with the death of the USSR among other reasons...... we have made improvements in our space etc. technology over the past 30+ years but not even close to the advancements made during the early years of the space program.

    Virgin Galatic and other such companies seem to give us some hope with a renewed interest in Space travel/exploration. The privatization of Space travel could be the best thing for the process of renewing our ability to explore and progress. One of the best motivators for scientific developments is improving the bottom line of some corporation.

    I'm just putting it out there what new improvements have anyone heard of? Any wacky ideas that could possibly work? (I've read some on the Orion Project which seemed promising even though it ended 40 years ago....) Just any thoughts put them down.........
     
    • Thank You! Thank You! x 1
    Last edited: Oct 1, 2010
  2. Madeline
    Offline

    Madeline BANNED

    Joined:
    Apr 20, 2010
    Messages:
    18,505
    Thanks Received:
    1,624
    Trophy Points:
    0
    Location:
    Cleveland. Feel mah pain.
    Ratings:
    +1,624
    I'd like to go down as well as up, Big Brother. Deep ocean travel would be amazing...imagine the things we'd see, eh?

    BTW, welcome to USMB...have you dun up an Intro post? I dun think I saw one.


    [​IMG]
     
  3. Baruch Menachem
    Offline

    Baruch Menachem '

    Joined:
    Sep 12, 2008
    Messages:
    14,204
    Thanks Received:
    3,235
    Trophy Points:
    185
    Ratings:
    +3,305
    I am not sure, but I think visiting Mars takes 6 years one way.

    And getting a payload large enough to feed a crew for six years is way to expensive.

    Plus the accumulated waste products. What to do about them.


    Right now the engineering isn't up to it, the amont of money is prohibitive, and the population isn't interested.

    And since the Reagan administration it is no longer a race. It is a cooperative venture. Which is cheaper and more productive, but boring.
     
  4. konradv
    Online

    konradv Gold Member

    Joined:
    Mar 23, 2010
    Messages:
    22,571
    Thanks Received:
    2,558
    Trophy Points:
    280
    Location:
    Baltimore
    Ratings:
    +5,673
    I think we should back off space and make it a national goal to develop fusion power. Once that's working space travel would be much more economical.
     
  5. Quantum Windbag
    Offline

    Quantum Windbag Gold Member

    Joined:
    May 9, 2010
    Messages:
    58,308
    Thanks Received:
    5,014
    Trophy Points:
    245
    Ratings:
    +5,221
    Bullshit.

    Space travel will always require reaction mass, and that is not going to go away simply because fusion power exists.
     
  6. rdean
    Offline

    rdean rddean

    Joined:
    Aug 9, 2009
    Messages:
    60,148
    Thanks Received:
    6,898
    Trophy Points:
    1,840
    Location:
    chicago
    Ratings:
    +14,996
    Our planet is surrounded by junk.
     
  7. R.C. Christian
    Offline

    R.C. Christian Gold Member

    Joined:
    Jun 30, 2010
    Messages:
    9,955
    Thanks Received:
    1,074
    Trophy Points:
    190
    Location:
    Ghetto
    Ratings:
    +1,195
    Space Elevator, enough said.
     
  8. konradv
    Online

    konradv Gold Member

    Joined:
    Mar 23, 2010
    Messages:
    22,571
    Thanks Received:
    2,558
    Trophy Points:
    280
    Location:
    Baltimore
    Ratings:
    +5,673
    You're not thinking this through. Given enough energy, less fuel would have to be onboard, since you'd be able to synthesize fuel along the way from available resources in space, like the moon, asteroids, comets, the planet you're visiting and possibly even the sparse matter collected from space itself.
     
  9. Quantum Windbag
    Offline

    Quantum Windbag Gold Member

    Joined:
    May 9, 2010
    Messages:
    58,308
    Thanks Received:
    5,014
    Trophy Points:
    245
    Ratings:
    +5,221
    What?

    Newton's Three Laws of Motion

    It does not matter what your power source is, you still have to push with something. Synthesize all you want, you still have to throw something out the end to speed up, and then throw more out to slow down. Fusion power is not going to allow you to create mass from nothing.
     
  10. Old Rocks
    Offline

    Old Rocks Diamond Member

    Joined:
    Oct 31, 2008
    Messages:
    46,488
    Thanks Received:
    5,416
    Trophy Points:
    1,840
    Location:
    Portland, Ore.
    Ratings:
    +10,327
    No, less than two years.

    Manned mission to Mars - Wikipedia, the free encyclopedia

    Mars Direct (early 1990s)
    Main article: Mars Direct
    Because of the distance between Mars and Earth, the Mars mission would be much more risky and more expensive than past manned flights to the Moon. Supplies and fuel would have to be prepared for a 2-3 year round trip and the spacecraft would have to be designed with at least partial shielding from intense solar radiation. A 1990 paper by Robert Zubrin and David A. Baker, then of Martin Marietta, proposed reducing the mission mass (and hence the cost) with a mission design using In Situ Resource Utilization to manufacture propellant from the Martian Atmosphere.[20][21] This proposal drew on a number of concepts developed by the former "Case for Mars" conference series. Over the next decade, this proposal was developed by Zubrin into a mission concept, Mars Direct, which he developed in a book, The Case for Mars (1996). The mission is advocated by the Mars Society as a practical and affordable plan for a manned Mars mission.
     

Share This Page