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    1. #1
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      what would happen?

      if you had a big bomb that is realy strong but also equal, by equal i mean there is nowere with more explosion, it is equal strength all around in a sphere. and around it you have a perfect glass sphere, all the glass is very thin and weak but it is equaly thin and weak everywere, and it is all an equal distance from the bomb. and finaly it is a vacume in there.
      so there are no variables or differences.
      what would happen when the bomb goes off?
      how would it crack in 1 place over another if everything is equal?
      would it be random? would it dissapear? would nothing happen? would the world end?

    2. #2
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      If it was glass it would have a weak point, since glass isn't uniform throughout. It is actually impossible to have glass equal every where, since even at the atomic level its different throughout.

      However, if you want to say the glass it made out of quartz or something, and there is no random aspect at all, then I would say that it just blows apart every where at the same time. In fact since you say it was a very powerful bomb, there is no problem at all saying that it blow apart every where at once.

      In which case it would 'crack' at all possible locations at the same time.

    3. #3
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      Quote Originally Posted by Alric View Post
      If it was glass it would have a weak point, since glass isn't uniform throughout. It is actually impossible to have glass equal every where, since even at the atomic level its different throughout.

      However, if you want to say the glass it made out of quartz or something, and there is no random aspect at all, then I would say that it just blows apart every where at the same time. In fact since you say it was a very powerful bomb, there is no problem at all saying that it blow apart every where at once.

      In which case it would 'crack' at all possible locations at the same time.
      so like each atom would blow apart or what?
      i cant imagine it

    4. #4
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      The glass would instantly get vaporized, meaning it turns into a gas. The explosion wouldn't move the gas, since there's no medium to propagate the shockwave, but the gas takes up a lot more space than the glass did, so it would still move around quite a bit. If the glass is very thin, then the movements won't be that crazy.
      Last edited by Marvo; 03-26-2012 at 02:10 PM.

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    5. #5
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      Marvo, whut?

      The explosion would cause a medium to expand, which in turn would propagate the shockwave.

      As the matter is now no longer compressed by being in a solid state, the gas pressure inside the sphere would become intense, and you shatter your sphere.


      I understand the hypothetical situation being described in the first post, so no need to debate perfect glass or whatever.

      Even with an explosion creating equal forces in every direction, so that no one force is stronger than another, the explosion itself is already big enough to create a force strong enough to overpower your "sphere" and it will shatter and expand, along with all the material and gas released by your hypothetical bomb.

      Enjoy!

    6. #6
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      The atoms them self wouldn't be blown apart, just the connections between each atom would be broken. So yea, it would basically become a gas and it would do it every where at the same time.

      Now if you said that everything is equal every where and the bomb had exactly enough energy to crack it, but not destroy it, that would be an interesting question.

    7. #7
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      Why is this in Philosophy...?

    8. #8
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      Quote Originally Posted by melanieb View Post
      Marvo, whut?

      The explosion would cause a medium to expand, which in turn would propagate the shockwave.

      As the matter is now no longer compressed by being in a solid state, the gas pressure inside the sphere would become intense, and you shatter your sphere.


      I understand the hypothetical situation being described in the first post, so no need to debate perfect glass or whatever.

      Even with an explosion creating equal forces in every direction, so that no one force is stronger than another, the explosion itself is already big enough to create a force strong enough to overpower your "sphere" and it will shatter and expand, along with all the material and gas released by your hypothetical bomb.

      Enjoy!
      It is stated in the OP that the sphere has no contents, it's a vacuum. Without a medium, there won't be anything to propagate the shockwave from the bomb. Obviously the bomb itself is made of something, but it wouldn't hit the glass sphere. The sphere would get instantly vaporized by the heat flash from the bomb. The resulting gas might interact with the matter the bomb was made of (which is also now in gas form), though this effect is hard to describe, unless all the matter from the bomb moves outwards perfectly uniformly and evenly distributed. If that is the case, it would just push the gas out, I would think.

      And even if it wasn't a vacuum, I believe shockwaves only travel at the speed of sound, assuming a pressure of one atmosphere with the same chemical composition as what we see on Earth. The flash of heat travels at the speed of light.
      Last edited by Marvo; 03-27-2012 at 01:27 AM.

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    9. #9
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      A simple explanation of shockwaves, from the worst source ever, Wikipedia.

      By the time the shockwave could move out, there would be material for it to move through, even without the sphere surrounding it to contain a vacuum. The particles of matter and gas from the bomb will travel faster than sound.

      And yes, heat and light would reach there first.

      However it happens, the sphere is destroyed, and the material moves outward into the space beyond where the sphere previously existed.

      And the world will be fine.
      Last edited by melanieb; 03-27-2012 at 02:36 AM.

    10. #10
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      Yup. I would think the material from the bomb is negligible, because it would probably be a relatively small amount. It would affect what's left of the sphere I suppose.

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    11. #11
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      I suppose it depend on the bomb size, and it's power.

      Gotta figure that any decent bomb is going to weigh a few kilograms, at the minimum, and the sphere can't be so far away as to not be affected by the bomb, so that at a reasonable distance from the center of the "perfect" explosion the sphere will come in to contact with numerous ejected particles (be they small or large) traveling at a high rate of speed, accompanied by various gases and compression forces, not to mention all that damn heat and light energy. Of course, for this to be true, the sphere will have had to not absorb so much energy during the initial flash as to disintegrate before the arrival of any ejected material.

      QWER did say it was a big bomb and really powerful.

    12. #12
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      In the original situation it sounded like he said it was in a vacuum so that there was nothing in the way to cause the explosion to hit the glass in a nonuniform manner. So the purpose was to ensure everything was equal, so assuming the bomb was powerful enough to reach the glass seems like a reasonable assumption, especially given that he specifically said it was a powerful bomb.

    13. #13
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      I'm gathering that the bomb is supposed to be even more powerful than our current strongest thermonuclear bombs. If so, then the thermal radiation should be enough to vaporize the glass, I would think, although it depends very much on how far away the glass is. If the glass isn't vaporized, it might still get heated so much that it expands, but since it happens in a perfectly uniform manner, I imagine it would just expand outwards, with no destructive effects.

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    14. #14
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      I don't think it needs to be that powerful. Just like a pond of c4 inside a small glass orb.

    15. #15
      Xei
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      There is no such thing as a perfect glass sphere.

    16. #16
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      Quote Originally Posted by Xei View Post
      There is no such thing as a perfect glass sphere.
      Pretty much this. As said before though, if the sphere were made out of a uniform substance then, depending on the size of the bomb and the substance used for the sphere, the sphere would most likely be vaporized and, due to the rapid expansion of molecules, you would get a large release of energy. Again, depending on the make-up of the sphere, the gas may combust and that would just be more energy released and it wouldn't be very complex. If it's a non-flammable substance (in a gaseous state) then the gas may even be sucked into the center of the sphere due to the previously present vacuum though I don't think it would be of a great enough force to cause any major change other than location. Either way this has too many variables to be argued.
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