Lazytown Classroom (12)

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  • chuft
    Stepher
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    Level 34 - Airship Controller
    • Dec 2007
    • 4820

    #31
    Due to our physics, toroids are very common in the universe because spinning clouds tend to coalesce into discs like the Solar System or the Milky Way. Anything too close to the center of mass tends to get pulled in, everything else orbits and becomes part of the doughnut of stuff orbiting the center of mass. Why spinning spheres collapse into discs is not real clear to me but has to do with conservation of angular momentum. Stuff orbiting above and below the plane defined by the axis of rotation tends to disappear over the long term. It's kind of like how the poles of the Earth are squashed down towards the center while the equator bulges.

    As I've said before, the LCDM model (which this video is about) has some serious problems which they hand-wave away with made-up, unobserved things like dark matter and dark energy. There are competing theories now like modified Newtonian dynamics and the timescape model which do not require the existence of dark matter or dark energy to accurately predict galaxy movements.

    There clearly are aspects of physics which are not symmetrical and it is not understood why, so I am not surprised there is not equal distribution of whatever that video is talking about. For example it is not known why there is virtually no antimatter and everything is matter, when there should be equal amounts of both.
    l i t t l e s t e p h e r s

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    • boredjedi
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      • Jun 2007
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      #32



      Amazing what you can see from space
      http://eighteenlightyearsago.ytmnd.com/

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      • boredjedi
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        • Jun 2007
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        #33
        Space Science

        "We Captured a Supernova For the First Time"

        http://eighteenlightyearsago.ytmnd.com/

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        • boredjedi
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          • Jun 2007
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          #34
          We're going back to the moon

          You can go to 9:39 for the launch discussion and graphics




          https://www.nasa.gov/missions/artemi...-moon-mission/
          https://www.space.com/space-explorat...unch-what-time
          http://eighteenlightyearsago.ytmnd.com/

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          • boredjedi
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            • Jun 2007
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            #35
            Had watched this the other day and got me thinking. You know how
            some days seem to go by faster or slower than other days. I wonder if those
            gravitational waves that hit earth does have an affect on that. The scientist
            have stated the affect is negligible. That the wave is smaller than the
            nucleus of an atom. The affect on time is negligible. But what if it's not.
            There seems also to be an affect on the quantum level.


            http://eighteenlightyearsago.ytmnd.com/

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            • chuft
              Stepher
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              Level 34 - Airship Controller
              • Dec 2007
              • 4820

              #36
              Time, like space, is relative in Einsteinian mechanics. If time speeds up or slow down it is relative to time flowing elsewhere. For example a watch on the Earth runs slower than a watch in orbit. This is an issue for satellite synchronizations. As far as you're concerned, it's always the same, you can't tell if time is flowing faster or slower where you are compared to somewhere else. Somebody on Earth and somebody else in orbit looking at their watches each would see the second hand ticking at exactly the same rate. If time slows down, your thoughts and perceptions slow down with it because moments are taking longer so it feels exactly the same.

              If it feels like time is passing faster or slower, it is actually a measure of to what degree your conscious mind is engaged. If you are paying attention to the present moment, time seems to go slower. If you are letting your subconscious mind take care of things - like walking or driving someplace familiar - your conscious mind is often disengaged for many frames of the "film" of your life, and time seems to go by faster, because your perception of time is how many frames of the film you are aware of. When frames go by without you being aware of them - an extreme example is being asleep - you can have hours go by and it seems like a moment. This happens every day when we wake up, but also during things like anesthesia for a surgery - one moment you are in the operating room and the next, in the recovery room.

              Things which demand your attention and keep dragging your consciousness into the present moment, like great pain or fear, tend to make time feel like it is dragging, because your conscious mind is engaged in each frame of the film. People often describe highly stressful situations like life and death situations as feeling like hours went by when it was only minutes or even seconds. Similarly if there is nothing for your subconscious mind to do - if you are bored at work for example - it can feel like the day is really going slow, while if you are busy doing repetitive tasks and your subconscious can take over, the day can fly by.
              l i t t l e s t e p h e r s

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              • boredjedi
                boredjedi commented
                Editing a comment
                I forgot to address the pain in my comments below. When you have a toothache. Fun times isn't it.
            • boredjedi
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              • Jun 2007
              • 8694

              #37
              Yeah those are all factors too. I'm mostly using from my experience
              like just neutral down time. Just chilling on a Saturday or Sunday.
              You look at the clock and it reads say 11 am. Not really doing anything.
              Next thing I look at the clock and it's 5 pm. I'm like huh where the hell
              the time go. Heh. Then there's the time drag. Same situation. Just chilling.

              I should keep a record of when that happens and check
              any gravitational waves that hit that day. According to the research we get
              hit with gravitational waves at least one a day.

              This one was really good. It's four hours. It's not chaptered so I'll list the time codes.


              0:00 - 1:00:33 Intro into Quantum Physics
              1:00:34 - 1:13:05 Quantum Robin (how Bird's determine direction. A bit more complex than just Earth's magnetic field)
              1:13:06 - 1:25:07 The Quantum Nose (Our scent receptors)
              1:25:08 - 1:56:53 Quantum Tadpoles (Quantum affect on Biology)
              1:56:54 - End Entropy S= k log W







              http://eighteenlightyearsago.ytmnd.com/

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              • chuft
                Stepher
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                Level 34 - Airship Controller
                • Dec 2007
                • 4820

                #38
                It's not possible for you to feel a slowdown of time, because everything including your feelings is happening inside that timeline. It's only a slowdown relative to other places. Your mind is not outside time, you could not observe time slowing down in your area. It's like the frames of a film being shown at a higher or lower FPS. To the people in the frames, it's the same number of frames, they could not detect any difference. It only looks like a higher or lower FPS to those outside of the film looking at it relative to their own place, which has the "seconds" that the "frames per second" are being shown in.
                l i t t l e s t e p h e r s

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                • boredjedi
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                  • Jun 2007
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                  #39
                  Originally posted by chuft
                  It's not possible for you to feel a slowdown of time, because everything including your feelings is happening inside that timeline. It's only a slowdown relative to other places. Your mind is not outside time, you could not observe time slowing down in your area. It's like the frames of a film being shown at a higher or lower FPS. To the people in the frames, it's the same number of frames, they could not detect any difference. It only looks like a higher or lower FPS to those outside of the film looking at it relative to their own place, which has the "seconds" that the "frames per second" are being shown in.
                  I'm not saying you feel or perceive the time slower or faster.
                  Say I'm reading a book and I note the time say 11 am again.
                  I'm reading and reading. Then look at the clock and whoa it's
                  6 pm!!! Where did that time go. heh.

                  I didn't notice the time speed at all.

                  Say I repeated everything the same on the next Saturday.
                  Same exact chapters. Reading at the same speed. I start at 11 am again.
                  I stop at the same amount of chapters. I look at the clock and it's 2 pm.
                  Oh boy the time is dragging. It's going to be a long day.

                  Again I didn't notice the time speed during.

                  It's not all the time. Just random. Could be stronger gravitational waves than usual
                  affects that on the body's quantum levels. Like the Quantum Robin, the Quantum Tadpole
                  and the Quantum Nose. But it's Space Time itself on the quantum level.

                  I like conversations like this.



                  http://eighteenlightyearsago.ytmnd.com/

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                  • boredjedi
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                    • Jun 2007
                    • 8694

                    #40
                    Forgot one more thing. In the video 2:00:34 he talks about Leibniz.
                    When I first heard the name I was like oh I remember him.
                    I had gotten a Leibniz Calculus book back in college. I don't
                    remember if I bought it or took it out at the Library. It's been
                    so long. But I did do both Newton's calculus and Leibniz.
                    I had read all about the rivalry between those two as well.
                    But of course, Newton being the President of the Royal Society, the cards were
                    stacked against Leibniz's Calculus.
                    http://eighteenlightyearsago.ytmnd.com/

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