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mkruck77

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Posts posted by mkruck77

  1. Titan is a good example when assuming that methane abundance is from biological processes. Titan is filled with methane lakes and has a temperature of about -290 degrees Fahrenheit. Of course I don't think there's any like on titan, but even at that temperature, I don't think there's enough abundance of like that could generate that amount of methane from biological processes. A common process of planets during there stages of development until their cores are cooled is volcanic activity, which most likely causes the majority of methane in the cosmos, not life.

  2. Why do all the speculations concerning the possibility of 'time travel' presume a non-dynamic staring point, when there is no such thing?

     

    Any point on Terra is moving. It is rotating in relation to the planet's axis. It is orbiting our sun. Our sun is orbiting the center of the Milky Way, the Milky Way is moving closer to Andromena, and our glactic cluster as a whole is moving toward a point behind the Virgo Cluster. The total sum of these velocities might be something like 1/35 C.

     

    Wouldn't it stand to reason that if you were to travel 35 seconds into the past, you would reappear into empty space approx. 186,000 miles ahead of where you were, and if you stayed in place, 35 seconds latter you would be right back to when and where you were?

    aguy2

     

     

    You mean 35 seconds in to the future, right? Are you assuming the sum of these velocities to be linear for the traveler (I would think no)

    To back up a bit, I don't think the motions within itself matters, as long as there is a system to know each direction of change; probably to the smallest quantum level (quarks) to eliminate any uncertainty. Because symmetries should be unchanged from past to present, you in theory should be able to locate the precise position of the past. You would have to reverse space time to the past position. The hard part to this question is how would you know the future position given uncertainty?


    Merged post follows:

    Consecutive posts merged
    You mean 35 seconds in to the future, right? Are you assuming the sum of these velocities to be linear for the traveler (I would think no)

    To back up a bit, I don't think the motions within itself matters, as long as there is a system to know each direction of change; probably to the smallest quantum level (quarks) to eliminate any uncertainty. Because symmetries should be unchanged from past to present, you in theory should be able to locate the precise position of the past. You would have to reverse space time to the past position. The hard part to this question is how would you know the future position given uncertainty?

     

    Oh, I see...you still have to take the velocities into question to find a given point. I think most theoretical explanations seem to use a fixed position for simplicity, but of course you would have to account for movement.

  3. The answer can be explained using quantum Theory which states that information about everything in the universe cannot be destroyed so it is still here. Humans time travel (or look into the past) all the time by simply reverse engineering a current event to see how it happened (forensic science). There is also a new theory (I forget what it is called) that states that nothing in the universe actually happens until it is actively observed that may also be able to answer your question, but my brain usually sets off the smoke detector in my house when I think about that one...

     

     

    This is a good question posted. Although the information within the universe is not destroyed, it has in fact changed, so you in turn must have a means or a system to know each direction of change; probably to the smallest quantum level (quarks) to eliminate any uncertainty. Because symmetries should be unchanged from past to present, you in theory should be able to locate the precise position of the past. So to your answer, the data is not stored, you would have to reverse space time to the past position. The hard question is how would this be achieved? Could it be achieved? I say it can't.


    Merged post follows:

    Consecutive posts merged
    Something I never understood about the concept of time travel. Where are the previous states of the universe stored? The information must be preserved in order for the time traveler to immerse himself in that previous state of the universe.

     

    I've searched many threads here and haven't seen this addressed.

     

    FYI-This is a good question posted. Although the information within the universe is not destroyed, it has in fact changed, so you in turn must have a means or a system to know each direction of change; probably to the smallest quantum level (quarks) to eliminate any uncertainty. Because symmetries should be unchanged from past to present, you in theory should be able to locate the precise position of the past. So to your answer, the data is not stored, you would have to reverse space time to the past position. The hard question is how would this be achieved? Could it be achieved? I say it can't.

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