Hollow Earth Hypothesis

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    Jul 10, 2013 9:53 AM GMT
    Before today I had never even heard about this, but now I'm very intrigued.

    For those of you unaware it is the theory that the planet is either entirely hollow or otherwise contains a substantial interior space that is habitable.

    Look it up, it will get you thinking especially when you read about the Aurora Borealis.

    I'm not into conspiracy theories but this one caught my attention for some reason. Maybe for the reason that I would like it to be real.ha
    A colleague(massive conspiracy theorist) in work was telling me about this today and I was wondering...

    What are other peoples thoughts on this??
  • kew1

    Posts: 1595

    Jul 10, 2013 10:33 AM GMT
    Simple, it's bollocks.

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    Jul 10, 2013 8:39 PM GMT
    It's where the zombies live.
  • LJay

    Posts: 11612

    Jul 10, 2013 8:48 PM GMT
    Yeah, sure.

    I just can't figure out how these things are kept a secret from the rest of us.

    Do you get there from a closet, like Narnia?

    Are there Hobbits?
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    Jul 10, 2013 8:49 PM GMT
    ROFL. That is all.

    Ok, not quite all.

    http://en.wikipedia.org/wiki/Hollow_Earth#Contrary_evidence

    Contrary evidence[edit]

    Seismic[edit]
    The picture of the structure of the earth that has been arrived at through the study of seismic waves[49] is quite different from the hollow earth theory. The Earth's interior is made up of layers of molten rock and various elements, in the mantle and core.[50]

    Gravity[edit]

    Another set of scientific arguments against a hollow Earth or any hollow planet comes from gravity. Massive objects tend to clump together gravitationally, creating non-hollow spherical objects we call stars and planets. The solid sphere is the best way in which to minimize the gravitational potential energy of a physical object; having hollowness is unfavorable in the energetic sense. In addition, ordinary matter is not strong enough to support a hollow shape of planetary size against the force of gravity; a planet-sized hollow shell with the known, observed thickness of the Earth's crust, would not be able to achieve hydrostatic equilibrium with its own mass and would collapse.

    Someone on the inside of a hollow Earth would not experience a significant outward pull and could not easily stand on the inner surface; rather, the theory of gravity implies that a person on the inside would be nearly weightless. This was first shown by Newton, whose shell theorem mathematically predicts a gravitational force (from the shell) of zero everywhere inside a spherically symmetric hollow shell of matter, regardless of the shell's thickness. A tiny gravitational force would arise from the fact that the Earth does not have a perfectly symmetrical spherical shape, as well as forces from other bodies such as the Moon. The centrifugal force from the Earth's rotation would pull a person (on the inner surface) outwards if the person was traveling at the same velocity as the Earth's interior and was in contact with the ground on the interior, but even the maximum centrifugal force at the equator is only 1/300 of ordinary Earth gravity.

    The mass of the planet also indicates that the hollow Earth hypothesis is unfeasible. Should the Earth be largely hollow, its mass would be much lower and thus its gravity on the outer surface would be much lower than it is.

    Direct observation[edit]

    The deepest hole drilled to date is the SG-3 borehole which is 12.3 km (7.6 mi)[51] deep, part of the Soviet Kola Superdeep Borehole project; thus, visual knowledge of the Earth's structure extends that far.
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    Jul 10, 2013 8:56 PM GMT
    According to Journey to the Center of the Earth, there are dinosaurs down there.
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    Jul 10, 2013 9:00 PM GMT
    Since anything can be a hypothesis, I'm starting the "Showme is only 30, has rock-hard abs, is a billionaire philanthropist and a Nobel peace prize recipient" hypothesis. If I want it to be true maybe it will be. icon_biggrin.gif
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    Jul 10, 2013 9:15 PM GMT
    showme saidSince anything can be a hypothesis, I'm starting the "Showme is only 30, has rock-hard abs, is a billionaire philanthropist and a Nobel peace prize recipient" hypothesis. If I want it to be true maybe it will be. icon_biggrin.gif


    You forgot a 14 inch dick.
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    Jul 10, 2013 9:16 PM GMT
    Irish89 saidBefore today I had never even heard about this, but now I'm very intrigued.

    For those of you unaware it is the theory that the planet is either entirely hollow or otherwise contains a substantial interior space that is habitable.

    Look it up, it will get you thinking especially when you read about the Aurora Borealis.

    I'm not into conspiracy theories but this one caught my attention for some reason. Maybe for the reason that I would like it to be real.ha
    A colleague(massive conspiracy theorist) in work was telling me about this today and I was wondering...

    What are other peoples thoughts on this??


    If you like the Hollow Earth hypothesis I suggest reading Journey to the Center of the Earth, and watching the TV series Sanctuary and miniseries Dinotopia. These works of fiction all involve the hypothesis, and it is really fun to think about, especially considering that there would be sky under the bottom of our ocean. A whole new world of adventure could be miles under our feet.

    As for the naysayers, scientists have no proof of there being anything under the crust of the earth, and have only theorized as to what the mantle is made of using their best guess and limited technology. It is a valid theory, because we have no way of definitively knowing what is going on under the earth's crust.
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    Jul 10, 2013 9:17 PM GMT
    MarronB81 said It is a valid theory, because we have no way of definitively knowing what is going on under the earth's crust.


    So then my theory that the earth is actually filled with marshmallow fluff is equally as valid?
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    Jul 10, 2013 9:24 PM GMT
    Matiz said
    So then my theory that the earth is actually filled with marshmallow fluff is equally as valid?


    Yeah it is, if scientists do not know, then there is no way to know. I personally think it is fun to question, and wonder about what the unknown parts of the world could be like. It is the same reason that I love most science fiction and fantasy.
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    Jul 10, 2013 9:26 PM GMT
    MarronB81 said

    As for the naysayers, scientists have no proof of there being anything under the crust of the earth, and have only theorized as to what the mantle is made of using their best guess and limited technology. It is a valid theory, because we have no way of definitively knowing what is going on under the earth's crust.


    ROFL again. Even Wikipedia has a brief summary of the contrary evidence, which is substantial. And there's zero evidence for.

    So it's a valid theory in the same sense as my theory that I'm only 30, have rock-hard abs, am a billionaire philanthropist and received a Nobel peace prize.

    No 14 inch dick pls Matiz that's too big.
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    Jul 10, 2013 9:27 PM GMT
    showme said

    No 14 inch dick pls Matiz that's too big.


    But, the bigger the better =o? Even if it becomes a painful, uncomfortable burden and effectively sexually useless.
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    Jul 10, 2013 9:28 PM GMT
    MarronB81 said
    Matiz said
    So then my theory that the earth is actually filled with marshmallow fluff is equally as valid?


    Yeah it is.


    I rest my case =D
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    Jul 10, 2013 9:29 PM GMT
    Matiz said
    showme said

    No 14 inch dick pls Matiz that's too big.


    But, the bigger the better =o? Even if it becomes a painful, uncomfortable burden and effectively sexually useless.


    I'll amend my theory to have an extra inch, but no more. I am going to start posting my theory online, which I'm sure will get me a lot more action.icon_biggrin.gif
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    Jul 10, 2013 9:29 PM GMT
    Irish89 saidBefore today I had never even heard about this, but now I'm very intrigued.

    For those of you unaware it is the theory that the planet is either entirely hollow or otherwise contains a substantial interior space that is habitable.

    Look it up, it will get you thinking especially when you read about the Aurora Borealis.

    I'm not into conspiracy theories but this one caught my attention for some reason. Maybe for the reason that I would like it to be real.ha
    A colleague(massive conspiracy theorist) in work was telling me about this today and I was wondering...

    What are other peoples thoughts on this??



    Hitler was digging tunnels to try to find it . The people that inhabit
    it were we're called Aryans.
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    Jul 10, 2013 9:31 PM GMT
    Generally a scientific theory stems from a hypothesis for which normally substantial (or at least SOME) evidence has been accumulated. A hypothesis is formed when one makes an observation for which there is no previous explanation and then proposes a falsifiable answer to said question. Since there is zero evidence for this idea and zero observations have been made indicating it is even a possibility I'd say calling it a "theory" is far too generous.
  • camfer

    Posts: 892

    Jul 10, 2013 9:32 PM GMT
    I've met some people who I theorized had hollow heads. There was ample evidence to support my theory.
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    Jul 10, 2013 9:39 PM GMT
    showme said

    ROFL again. Even Wikipedia has a brief summary of the contrary evidence, which is substantial. And there's zero evidence for.

    So it's a valid theory in the same sense as my theory that I'm only 30, have rock-hard abs, am a billionaire philanthropist and received a Nobel peace prize.

    No 14 inch dick pls Matiz that's too big.


    I don't understand why anyone is trying to crush the imagination of Irish89, he didn't try to force any of you guys to believe it, just to consider, there is no reason to flame the poor guy. I think that its fun to think about what kinds of things could exist, instead of allowing a widespread idea with no validity rule my judgement.

    showme, I said that the reason his theory is valid is that we have no definite way of knowing its not. What your talking about there is definite ways to know that you are not 30, that you do not have rock hard abs, that your are not a billionaire philanthropist, and that you have no nobel prize. Since those things are recordable and obvious.

    While, Matiz's theory, does have some validity, since there is no way to prove it either way. That is what I was saying. Sorry for the confusion on that.

    I still think it would be cool to see a whole other world within our world.

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    Jul 10, 2013 9:44 PM GMT
    MarronB81 said
    showme said

    ROFL again. Even Wikipedia has a brief summary of the contrary evidence, which is substantial. And there's zero evidence for.

    So it's a valid theory in the same sense as my theory that I'm only 30, have rock-hard abs, am a billionaire philanthropist and received a Nobel peace prize.

    No 14 inch dick pls Matiz that's too big.


    I don't understand why anyone is trying to crush the imagination of Irish89, he didn't try to force any of you guys to believe it, just to consider, there is no reason to flame the poor guy. I think that its fun to think about what kinds of things could exist, instead of allowing a widespread idea with no validity rule my judgement.

    showme, I said that the reason his theory is valid is that we have no definite way of knowing its not. What your talking about there is definite ways to know that you are not 30, that you do not have rock hard abs, that your are not a billionaire philanthropist, and that you have no nobel prize. Since those things are recordable and obvious.

    While, Matiz's theory, does have some validity, since there is no way to prove it either way. That is what I was saying. Sorry for the confusion on that.

    I still think it would be cool to see a whole other world within our world.



    Look, I loved Journey to the Centre of the Earth as much as the next kid. I read it over and over again. And I love crappy Syfy movies about all kinds of silly things.

    But let's not confuse fantasy with a "theory" for which there is zero evidence, and huge amounts of scientific evidence to the contrary. To believe in the hollow earth theory you would have to disregard all of that completely - just as to believe my theory, you'd have to disregard all the evidence to the contrary.

    And BTW, I do have rock hard abs.* I threw that one in just to confuse things. icon_biggrin.gif

    * For my age, which is of course 30.
  • LJay

    Posts: 11612

    Jul 10, 2013 9:46 PM GMT
    Matiz said
    MarronB81 said
    Matiz said
    So then my theory that the earth is actually filled with marshmallow fluff is equally as valid?


    Yeah it is.


    I rest my case =D


    Cool1 Are you conducting expeditions? Is it OK to bring chocolate ice cream?
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    Jul 10, 2013 9:59 PM GMT
    showme said

    Look, I loved Journey to the Centre of the Earth as much as the next kid. I read it over and over again. And I love crappy Syfy movies about all kinds of silly things.

    But let's not confuse fantasy with a "theory" for which there is zero evidence, and huge amounts of scientific evidence to the contrary. To believe in the hollow earth theory you would have to disregard all of that completely - just as to believe my theory, you'd have to disregard all the evidence to the contrary.

    And BTW, I do have rock hard abs. I threw that one in just to confuse things. icon_biggrin.gif


    Woah... I never said wrote that I believe in the Hollow Earth theory. Also Irish89 never wrote he believed in it. Thinking about something is nowhere near the same as believing it. And, the farthest I have gone is to write that it is fun to think about. Since you wrote that you enjoyed Journey to the Center of the Earth, I will assume that you at one point you liked to think about it too.

    Further, I also have not seen definitive proof either way of proving its existence or its nonexistence. Since you wrote there is "huge amounts of scientific evidence to the contrary." Please reference all this evidence of studies done from scientists who have actually taken samples from under the crust of the earth through to the core. Since, last I checked no scientific expedition is planned to get to the bottom of the earth's crust until 2018.

    I do not see the harm in exploring or thinking about any idea, why do you?
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    Jul 10, 2013 10:03 PM GMT
    The only thing hollow about the earth is the brain of the moron who thought it up in the first place.
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    Jul 10, 2013 10:32 PM GMT
    MarronB81 said
    showme said

    Look, I loved Journey to the Centre of the Earth as much as the next kid. I read it over and over again. And I love crappy Syfy movies about all kinds of silly things.

    But let's not confuse fantasy with a "theory" for which there is zero evidence, and huge amounts of scientific evidence to the contrary. To believe in the hollow earth theory you would have to disregard all of that completely - just as to believe my theory, you'd have to disregard all the evidence to the contrary.

    And BTW, I do have rock hard abs. I threw that one in just to confuse things. icon_biggrin.gif


    Woah... I never said wrote that I believe in the Hollow Earth theory. Also Irish89 never wrote he believed in it. Thinking about something is nowhere near the same as believing it. And, the farthest I have gone is to write that it is fun to think about. Since you wrote that you enjoyed Journey to the Center of the Earth, I will assume that you at one point you liked to think about it too.

    Further, I also have not seen definitive proof either way of proving its existence or its nonexistence. Since you wrote there is "huge amounts of scientific evidence to the contrary." Please reference all this evidence of studies done from scientists who have actually taken samples from under the crust of the earth through to the core. Since, last I checked no scientific expedition is planned to get to the bottom of the earth's crust until 2018.

    I do not see the harm in exploring or thinking about any idea, why do you?


    The "studies" you want cited are basically every paper ever written on gravity, seismic activity, and magnetohydrodynamics (explaining the earths magnetic field).

    As for direct evidence, the mantle is actually exposed in several locations along the seafloor, and actual mantle material has been taken (see the work of Chris Macleod and others http://www.cardiff.ac.uk/earth/academic-staff/professor-chris-macleod/publications/)
  • FRE0

    Posts: 4865

    Jul 10, 2013 10:33 PM GMT
    It would, for many reasons, be impossible for the earth to be hollow.

    If the earth were hollow, it would weigh far less in which case its gravitational pull would be far less. We would all be much lighter. The gravity would be insufficient to hold the moon in its current orbit. There would be no atmosphere since there would be insufficient gravity to hold the atmosphere.

    Helium is being constantly released from the earth (it comes from decaying radioactive material in the earth), yet there is practically none in the atmosphere. The reason is that helium atoms are so light that their speed is greater than the escape velocity required by the earth's gravity. If earth's gravity were less, then it would not be able to hold even heavier gasses, such as O2 and N2. Similarly, the moon and Mercury have no atmosphere; their gravity is too weak to hold an atmosphere. Mars has a very thin atmosphere because it is smaller and has weaker gravity.

    Presumably if the earth were hollow, it would be completely dark in the inside in which case any life would have to be of a totally different nature.

    If the earth were hollow, it would also have to be water-tight else all the surface water would disappear into the center.