Linus Landergren

Skagerak Intl' Student, Archery Sandefjord

This conversation is closed.

FTL Space Travel

Hi I am Linus, I am new to the community, I am very interested in FTL travel like they have in Star Trek. I am just wanting to start a discussion about the subject itself if anyone has any news of FTL or anything new in Space Travel. Exited to hear what you guys think about FTL.

  • Oct 13 2013: Truck on LInus... 100 years from now they will be laughing about what cavemen we were in the early 2000's.
  • Sep 28 2013: As of our current understanding of modern physics, it can't be done.
    Its not even an engineering problem, there is an outright physical law telling you "not happening".

    Granted, there have been certain points in history when physics books had to be re-written because our understanding of physics proved fundamentally flawed, so who knows.
    • thumb
      Sep 28 2013: it is not perfectly true.

      1. general theory of relativity disallows FTL locally, but it allows the spacetime itself to move. not entirely unlike a river carrying you fast, though you don't row fast compared to the water.

      2. GTR allows shorter paths to exist or even created between apparently far away points. this would be popularized under the name of wormholes.

      3. we know for certainty that GTR is not a perfect representation of the world, therefore if something is not possible within the scope of GTR, it does not mean it is not possible in the real world.

      on the other hand, just to rain on the parade of anyone trusting a hope. it seems that in order to do anything outside the traditional snail approach, we need amounts of energy that blows the mind. even the traditional approach needs humongous portions of energy. to travel the nearest star within a decade of travel time, we would need to condense the total energy production of mankind during a century into antimatter. anything less ambitious than that just won't cut it. if we want to play with the structure of spacetime, we might need significantly more energy.
      • Sep 28 2013: So we've moved from it being theoretically impossible, to simply being completely unfeasible on a practical level.
        Not much of an improvement to be honest.

        A better understanding of the theoretical physics would help, but somewhat out of my area of expertise. Though if I understand correctly, even the proper experts on theoretical physics don't fully understand the lot of it.

        Oh well. Still, its not like there's nothing left to explore even on this solar system. You could even do it with today's technology if you could stomach the months or years of travel time and if the reliance on autonomous probes doesn't drive you to distraction.
        • thumb
          Sep 28 2013: it is very much improvement if you pick the right angle to look it from. if we need 100 years of total output on today's level, and we assume 1% increase in energy production, the same statement would say 60 years in 2050, 35 years in 2100, 14 years in 2300, 8 months in 2500, less than 2 days in 3000, and 7 seconds in 4000.

          we only need to find out how to live 2000 years.
      • Sep 28 2013: In that case, maybe we ought to focus on the living 2000 years part?
        FTL is nice and all, but I've never really encountered a need for it in my day to day life. Living forever on the other hand...

        On an unrelated note, living for 2000 years may actually be long enough for a voyage to a nearby star system without that whole pesky FTL business. Assuming you'll be traveling a fairly reasonable speed of 30 kilometers per second (around 0.001 c), you ought to be able to hit Alpha Centauri after about 4000 years (habitable planet once you get there unlikely, but you can't have everything).
        By doing so, you of course risk having FTL discovered after you left. That'd make for one awkward meeting on the other side...
    • thumb
      Oct 5 2013: But what if 'our current understanding of modern physics' was wrong? Would you give it a ride?
  • thumb
    Sep 28 2013: I feel Instead of putting your intelligence and creativity on the space, we should concentrate more on the breeding ground for all the life form that is earth. If someone feels that we know most of things about earth and its creature; its a false statement. all the aliens, type of various communication, and whatever mind can think about are present in various form in the creatures of the earth So first explore this as the chance of getting success is more rather than wasting time and money on space. I am not saying not think of fancy things but give enough opportunity for earth Exploration. I read this article of Cows from all over the world were facing in same direction Without communicating to each other, how is this possible here is the link
  • Sep 28 2013: Well Linus you may want to start your search with a little Quantum Physics ie look up "entanglement" or you may want to study some entanglement examples in nature like the guidance system for starlings, bats or schools of fish. If you want to study human entanglement examples lookup telepathy. All are examples of FTL communication and once you understand that you are well on your way to FTL travel tech. I like your altitude dude.
  • thumb
    Sep 28 2013: I hope I could experience it once in my life. I think it must be fantastic.
    Thank you.
  • thumb
    Sep 27 2013: the conversation might be short, as nobody has a clue how to do that.
  • thumb
    Sep 27 2013: Hello Linus,
    Now that I have looked up what FTL means, I guess it will mean we could start to seriously explore the universe in search of other intelligent life forms - and I'm sure they are out there to be found.
    I would love to bring some of them back to earth in the hope that it will help bring peace to earth when earth-people see the bigger picture of universal life and that there is so much more interesting stuff to do than fight each other.
    • Sep 28 2013: I have been searching for intelligent life forms here on earth for 65 years.
      • thumb
        Sep 28 2013: Hi Keith,
        I agree, intelligent life-forms may well exist on earth too, but we don't "see" them because they are vibrating at a level that is outside the range of our our normal 5 physical senses. Perhaps if we humans can raise our levels of consciousness and awareness, we will begin to see much more of what's going on around us, including the "intelligence" of plants, animals, and Mother Earth generally.
      • W T

        • 0
        Sep 28 2013: Hahahahahaha.....................oh Keith that is too funny!!!
        • Sep 28 2013: I am happy you enjoyed one of the interpretations, there are several. I do like Joshua's interpretation as well. That is what makes a good painting interesting, several people can look at the same thing and each one sees something different.
      • W T

        • 0
        Sep 29 2013: Which of the two ways did you intend it to be interpreted.........that is what I would like to know.

        I almost erased my comment after I read Joshua's.....but I decided to leave it and see what happened. I feel kind of dumb right now. :/
        • Sep 29 2013: Mary first of all I had a good laugh right along with you and to interpret the statement as hinting that after searching for 65 years I still have not found a single human with a lick of sense, that is funny in a hopeless sense, even if it is not completely true. Often when I find myself in hopeless situations like that I don't know whether to laugh or cry.
          I had a cousin named Wayne who always smiled and even more when he got into trouble. It was particularly troublesome whenever a cop pulled him over expecting a sad face and more serious the cop gets the more Wayne would smile. He ended up in jail more than once for trivial things that most people would get a warning for. OK. What were we talking about??? Oh yea humor. I think it is the all timers kicking in.
          My quote may shed some light as to what I was feeling at the time:
          "We look for life on Mars and still have not found it on earth"
          That may or not answer your question but I will add that I purposely left it up to the reader to answer the question for themselves. Some questions have several right answers. The real question would be is your answer right for you.
      • W T

        • 0
        Sep 29 2013: I remember once a teacher who taught primary school suddenly was asked to teach the upper grades. One of the first things she said was......"it's so good to be where there is intelligent life".

        Thank you for your reply......I don't feel so dumb now. :D
        • Sep 29 2013: Yes and like a good politician she didn't say whether that intelligent life was where she was or where she was going. I have been reading your posts and I am shocked that dumb is even in your vocabulary. Your posts are all very well thought out, sincere and show a lot of maturity. Keep on truckin my friend you are doing just fine. We are always our own worst critics.
      • W T

        • 0
        Sep 29 2013: Thank you Keith. The fact is I am just tickled pink that I am able to exchange thoughts and ideas with others.

        One of my kids sometimes tells me "Mom, are you sure you're not blonde?"
        Then she sent me a link to this song......

        Like the singer, I also "like to quote a little bit of Shakespeare....." :)