Request for 'Over the Horizon' Photos

Discussion in 'All Things Boats & Boating' started by rwatson, Nov 19, 2012.

  1. whitepointer23

    whitepointer23 Previous Member

    are you sure. maybe we are on top and you are digging up .::)
     
  2. Frosty

    Frosty Previous Member

    But what is the speed of gravity?

    Ie if the moon were to just disappear how long would it take for the tides to collapse.?

    Is it the speed of light 186,000 miles per second or is that the speed of a Jew going through a German village on a bicycle which is the second fastest speed in the world..

    Gonzo is not altogether wrong --if light had no mass then a black hole could not be able to stop it.
     
  3. rwatson
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    rwatson Senior Member

    Tom and Gonzo. A strange thing happened today. I was watching a recorded TV show, about a mother and daughter stranded in the deserts of Brazil. They encountered a bunch of scientists in 1919, who came to the desert to observe the total eclipse of that year, in order to measure the deflection of light from known star systems.

    I looked it up in Google, and the story was based on fact.

    very interesting

    http://www.astronomytoday.com/eclipses/modern-part4.html
     
  4. Frosty

    Frosty Previous Member

    What year was the mother and daughter in the desert, are you saying they went back in time to 1919.
     
  5. rwatson
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    rwatson Senior Member

    ooh, ooh - sir - I know that one. The gravitational effects of the sun disappearing would not be felt for 8.5 minutes (same as light) , as far as science knows

    http://www.astronomycafe.net/qadir/q629.html


    A fascinating question sir, and one that is really intriguing - as it goes to the core of what the hell gravity is.

    the billions spent on the Hadron collider in Europe was to try to understand he problem. if they had given me half the money, I am sure I could have made something up that would have been good enough to put in the science textbooks.
     
  6. rwatson
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    rwatson Senior Member

    oh no, the story was based in 1919 (House of Sand) - quite a good story. Its strange how of all the recorded TV shows I could have chosen had something in it related to the Gonzo disucussion.
     
  7. latestarter
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    latestarter Senior Member

    Tom, most of what Gonzo has written on this thread has been a wind up.

    The problem with relativity and quantum mechanics is they go against common sense and human experience. People think in a Newtonian way, trying to visual curved space in 3D is beyond most people, to say nothing of more than 4 dimensions.

    The black hole bends space time so much that there are no paths for light to escape, not because "gravity" is pulling on the photon.
    http://en.wikipedia.org/wiki/Photon
    http://math.ucr.edu/home/baez/physics/ParticleAndNuclear/photon_mass.html
     
  8. masalai
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    masalai masalai

  9. Frosty

    Frosty Previous Member

    No Not at all,--l and I think latestarter has hit the nail there . I certainly have trouble getting me head round it.
     
  10. masalai
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    masalai masalai

    Oh :?:
     
  11. rwatson
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    rwatson Senior Member

    Visualising curved space in 3d is easy, there are a dozen Youtube samples. .

    You dont 'visualise' 4d or more space, you can only represent it a bit with math - unless you have just made a major breakthrough in symbolic logic representation coupled with special neural link technology :D


     
  12. latestarter
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    latestarter Senior Member

    Ah but that is a representation of a 2D plane being deformed not a 3D space.
     
  13. Frosty

    Frosty Previous Member


    Exactly
     
  14. Frosty

    Frosty Previous Member

    I hav'nt seen the Milky way this year. I normally see it when urinating off the aft deck in the night but not this year., I know where it is --it lies from North to south. Has it moved?

    4 AM morning and the unmistakable Uranus appears from the east and of course the Southern cross Is my favorite if at sea heading south. So much easier on the eyes than staring at green LED lights on the Compass or GPS repeater.
     
  15. rwatson
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    rwatson Senior Member

    No, not at all. The Video is a 3d version of the 4d phenomena.

    The video has width, depth and height ( the height is the 'hollow' ), so it is 3d.

    The 4th dimension IS space/time, that causes the gravitational effect, and this cannot be represented in a 3d diagram.
     

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