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  1. #1
    chulaivet1966's Avatar
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    Default Space travel.....



    ....what could be more a intriguing subject to ponder in our puny human lives.

    My initial thoughts.....in my 'puny' ignorance....

    A worthy propulsion system seems to be THE challenge and I'm doubtful one will be developed in our lifetime.

    But, even if one is developed, the cosmic speed limit is still not fast enough to traverse the vastness and explore anything given our life span and knowledge.

    Although the concept of black holes being a conduit into another galaxy/dimension is quite interesting I really can't get my head around accepting that theory as of yet.

    The 'big bang' thought?
    I tend to gravitate toward the 'colliding membranes' theory.

    That my take on a couple of things.....mas cafe para mi.

    Carry on...
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    Many people in my opinion are overly optimistic about our future capabilities to travel in space. To be sure we will be able to travel around the solar system within the next fifty to one hundred years but I also believe that interstellar space travel will remain part of science fiction for a long time.
    Bob DeWoody

  3. #3
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    Default

    Yeah, I agree....I doubt we'll see "real" space travel in our lifetime, other than the "probes" we already have sent out. But, "Human" travel....quite another story.

    Way too many problems to overcome at this point. Especially for humans to travel at such vast distances. You could write a book on all the issues that would need to be dealt with.
    Chris
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  4. #4
    chulaivet1966's Avatar
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    Moldlerbob....laney50w...

    I agree....we'll meander/research within the solar system but that's about it.
    We, as humans, have evolved to live on terra firma with it's gravity and atmosphere that we must ingest.
    The complications (as laney50w points out) of human survival during space travel are insurmountable.

    Oh yeah....volumes could be written as to the impossibility of humans trying to overcome the unforgiving, frigid expanse of space.
    One little meteor grain compromising the hull and the party is over for that vessel.
    Even if the necessary gravity, in a revolving, circular space ship were overcome the myriad of other hazards and unknowns makes the prospects of space travel extremely dangerous.

    Thanks for chiming in....
    Last edited by chulaivet1966; 12-04-2011 at 04:23 PM.
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  5. #5
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    It will soon be possible, for instance, for a business man in New York To dictate instructions and have them appear instantly in type in London or elsewhere. He will be able to call up from his desk and talk with any telephone subscriber in the world. It will only be necessary to carry an inexpensive instrument not bigger than a watch, which will enable its bearer to hear anywhere on sea or land for distances of thousands of miles. One may listen or transmit speech or song to the uttermost parts of the world.
    - Nikola Tesla, New York Times, October 1909

    It seems to me that to suggest we won't be able to do something within "our lifetimes" underestimates human ingenuity a great deal.

    Tesla suggested such seemingly magical mobile devices a mere 102 years ago. Consider the first commercially available cell phones and Walkmans made their debut in the 80's, the timeframe becomes one of 7 decades and change...the AVERAGE lifespan of Americans at this point.

    Yet, wouldn't today's iPhone have seemed as magical then as interstellar travel seems to us now? Indeed, I'd argue even more so.

    Imagine a 10 year old boy suggesting, in 1900, that a man would walk on the moon within his lifetime. It would, almost certainly, been shrugged off as the rather vivid imagination of a young child. Indeed, man would not even FLY a heavier than air craft for another 9 years.

    Yet, 69 years later, that boy would be a 79 year old man, watching Neil Armstrong set foot on the moon....on live television no less.

    Perhaps the secret to interstellar travel lies in the idea of "warping" space-time, ala Star Trek. Take a look at your now obsolete "data disk", your physician's hand held scanners, and your smaller than palm sized "communicators", and tell me again why a warp drive isn't possible within the next 20-60 years...a time frame that covers the lifespan of a great many members here.

    The entranceway to the older Air and Space museum facility houses several aircraft hat went farther, faster, higher than "we'd ever go in our lifetimes".

    I, for one, refuse to accept any such limitation.

    For all we know, the "trick" gets discovered tomorrow.

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  7. #6
    chulaivet1966's Avatar
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    Eor312....

    Well...maybe I should have said: 'in my lifetime' (grin) as I'm now 64.

    If we survive as a species (barring any extinction events) long enough I would agree it's inevitable we'll make some science/space travel breakthroughs.
    But, IMO...they will have to be quite profound 'breakthroughs' in physics along with your comment of 'warping' space rather than traversing the cosmos as we currently view and understand it.
    I'm awaiting the new 'trick' to be discovered as I type.

    I love this stuff I might add.
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  8. #7
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    Default

    [QUOTE]A worthy propulsion system seems to be THE challenge and I'm doubtful one will be developed in our lifetime.[QUOTE]

    I think we may be able to figure out how to gravitationally contract space, as in building worm holes, than build a propulsion system. I think it's the only way to get around E=MC2.

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  9. #8
    Eor312's Avatar
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    Quote Originally Posted by chulaivet1966 View Post
    Eor312....
    Well...maybe I should have said: 'in my lifetime' (grin) as I'm now 64.
    Oh, I dunno..

    In 1991, the state of the art Cray Y-MP supercomputer was running a 32 bit architecture, with 512mb of RAM, and less than 500mil transistors in its CPUs, total.

    That wouldn't even make a low end gaming machine now.

    One of Intel's Core i7 chips is holding 2.27 billion transistors now. I0f we presume Gordon Moore continues to remain accurate, that'll double 13 times in the next 20 years...

    22.1 TRILLION transistors...in a single "Gaming PC" class CPU.

    You'll be 84 by then...certainly a reasonable age to expect you to reach.

    You really willing to commit to the idea that in a world with THAT much computing power readily available at Games Be We that SOMEONE won't stumble across a means to bend space?

    But, IMO...they will have to be quite profound 'breakthroughs' in physics along with your comment of 'warping' space rather than traversing the cosmos as we currently view and understand it.
    I'd have to agree. I certainly don't think our current chemical rockets are going to get us anywhere very fast...

    I'm awaiting the new 'trick' to be discovered as I type.

    I love this stuff I might add.
    Amen.

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    Default

    Although there is no reason to be pessimistic about human ingenuity in the future, there is equally no good reason to be optimistic that the problems of interstellar travel reqire nothing more than ingenuity to solve them.

    Be that as it may, I am pessimistic about the possibility of interstellar travel for reasons that have nothing to do with science, technology, and ingenuity, and more to do with economics, ecology, and resource management.

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  12. #10
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    KMCraig....
    Yes...the faster we go the more energy we need....ha....what to do.
    Anyone here bogarding any dark matter?

    Eor312...
    You really willing to commit to the idea that in a world with THAT much computing power readily available at Games Be We that SOMEONE won't stumble across a means to bend space?

    Ha....I don't 'commit' to anything in this knowledge quest.
    I'm still not optimistic it will happen in my time on this sphere.
    If this breakthrough occurred in my lifetime I'd be a happy camper just pondering it all.

    KeithBC....
    I agree, all those points are parts of the equation.

    Carry on....
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