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  • prefix_1_title_rich Black holes

    Guys, does anyone know - I just can not understand - like the speed of light and all that; nothing faster than the speed of light, and the age of the stars is determined by the spectrum, by the displacement in the redness of the distance, by the thermal healing of the expanding universe. But how to limit the age of the black hole? How to determine the type of black hole, was it originated yesterday or 13 billion years ago?

  • #2
    Apparently there’s no discernible way to age a black hole as of yet, but scientists reckon they can calculate the lifespan of a black hole.

    https://www.quora.com/How-can-we-det...62a&srid=uRFeE

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    • #3
      Originally posted by Evrica View Post
      Guys, does anyone know - I just can not understand - like the speed of light and all that; nothing faster than the speed of light, and the age of the stars is determined by the spectrum, by the displacement in the redness of the distance, by the thermal healing of the expanding universe. But how to limit the age of the black hole? How to determine the type of black hole, was it originated yesterday or 13 billion years ago?

      Simple

      Objects have mass the more mass they have the more gravity they have

      Gravity warps space and time


      Imagine a bowling ball on a trampoline, the weight of the ball has warped the trampoline. And objects near the bowling ball will be drawn towards it.


      If you throw an object up it will fall back down, as you lack the strength to beat the gravitational pull of the earth.

      To break free of the earth's gravitational pull you would need to acceleration the object to a speed of 11 meters per a second per a second.


      Objects that are more massive or have that mass more condensed will have a greater escape velocity.

      For example the Sun's escape velocity is 400 metres per second per a second.


      Now a blackhole is so massive and dense that the escape velocity is greater than the speed of light which is 300,000 metres per a second.

      And since nothing can travel faster, nothing can escape, not even light, hence why they are black.

      A teaspoon full of black hole matter weighs many times as heavy as Mt. Everest. That is how massive and dense they are.

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      • #4
        Bummer

        I thought Kim K was releasing a new pawn flick.

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        • #5
          http://www.talkceltic.net/forums/thr...k-hole.150181/

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          • #6
            we need to look at the civilization inside our planet before we venture outer space.

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            • #7
              Thanks all, guys.

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