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Jitro
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09 Nov 2012, 3:08 pm

Well the core sure does resemble Hell alot.



Fnord
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09 Nov 2012, 3:12 pm

How would you know?

According to some old books, Hell is hot, dry, sulfurous, and filled with the souls of the damned.

According to real-world seismic and geomagnetic data, the Earth's core is composed of iron, nickel, and radioactive metals in a compressed liquid state.


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Jitro
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09 Nov 2012, 3:25 pm

Fnord wrote:
How would you know?

According to some old books, Hell is hot, dry, sulfurous, and filled with the souls of the damned.

According to real-world seismic and geomagnetic data, the Earth's core is composed of iron, nickel, and radioactive metals in a compressed liquid state.


Well the core has never been directly observed. No probe has every been sent down there to take pictures.



Fnord
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09 Nov 2012, 3:37 pm

Jitro wrote:
Fnord wrote:
How would you know? According to some old books, Hell is hot, dry, sulfurous, and filled with the souls of the damned. According to real-world seismic and geomagnetic data, the Earth's core is composed of iron, nickel, and radioactive metals in a compressed liquid state.
Well the core has never been directly observed. No probe has every been sent down there to take pictures.

Well, Hell has never been directly observed; no probe has every been sent there to take pictures, either. It's all a figment of some iron-age religious leader's imagination.

Seismic and geomagnetic data can be analyzed to determine the materials that make up the Earth's core. If it was a hot, open space with a sulfurous atmosphere, the data would skew one way. If it's composed of compressed molten metals, then the data would skew another way.

The data skews in the exact way necessary to prove the existence of a compressed liquid metal core.

This "Hollow Earth" myth you love so much was debunked long before you were born, kid.

The Hollow Earth hypothesis proposes that the planet Earth is either entirely hollow or otherwise contains a substantial interior space. The hypothesis has been shown to be wrong by observational evidence, as well as by the modern understanding of planet formation; the scientific community has dismissed the notion since at least the late 18th century. Religious nutters still hold on to the idea, anyway.

The concept of a hollow Earth still recurs in folklore and as the premise for subterranean fiction, a subgenre of adventure fiction. It is also featured in some present-day pseudo-scientific and conspiracy theories.

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

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.

The deepest hole drilled to date is the SG-3 borehole which is 12.3 km (7.6 mi) deep, part of the Soviet Kola Superdeep Borehole project; thus, visual knowledge of the Earth's structure extends that far.

References:
  • Press, Frank; Siever, Raymond; Grotzinger, John; Jordan, Tom (2003). Understanding Earth (4 ed.). New York, New York: W. H. Freeman. pp. 484–487. ISBN 0-7167-9617-1.
  • USGS - Earth's interior
  • Eagleson, Mary (1994). Concise Encyclopedia Chemistry. Walter de Gruyter, p799. ISBN 3-11-011451-8
Where do you get your weird, outdated ideas from, anyway?


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helles
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09 Nov 2012, 3:55 pm

Heaven is hotter than Hell

http://www.sciencemagpie.com/2012/10/19 ... ave-proof/


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Fnord
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09 Nov 2012, 3:58 pm

Here's an Urban Legend that might be good for a laugh or two:

Dr. Schambaugh, of the University of Oklahoma School of Chemical Engineering, Final Exam question for May of 1997. Dr. Schambaugh is known for asking questions such as, "why do airplanes fly?" on his final exams. His one and only final exam question in May 1997 for his Momentum, Heat and Mass Transfer II class was: "Is Hell exothermic or endothermic? Support your answer with proof."

Most of the students wrote proofs of their beliefs using Boyle's Law or some variant. One student, however, wrote the following:

Quote:
First, We postulate that if souls exist, then they must have some mass. If they do, then a mole of souls can also have a mass. So, at what rate are souls moving into Hell and at what rate are souls leaving? I think we can safely assume that once a soul gets to Hell, it will not leave.

Therefore, no souls are leaving. As for souls entering Hell, let's look at the different religions that exist in the world today. Some of these religions state that if you are not a member of their religion, then you will go to Hell. Since there are more than one of these religions and people do not belong to more than one religion, we can project that all people and souls go to Hell. With birth and death rates as they are, we can expect the number of souls in hell to increase exponentially.

Now, we look at the rate of change in volume in Hell. Boyle's Law states that in order for the temperature and pressure in Hell to stay the same, the ratio of the mass of souls and volume needs to stay constant. Two options exist:

1. If Hell is expanding at a slower rate than the rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all hell breaks loose.

2. If Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over.

So which is it? If we accept the quote given to me by Theresa Manyan during Freshman year, "that it will be a cold night in Hell before I sleep with you" and take into account the fact that I still have NOT succeeded in having sexual relations with her, then Option 2 cannot be true ... Thus, Hell is exothermic.

The student, Tim Graham, allegedly received the only A on the exam.

Besides, everyone who lives near the Great Lakes knows for a fact that Hell is in Michigan!


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AspieOtaku
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09 Nov 2012, 5:07 pm

All the earths core is is solid nickle the only reason why it is solid is because of tremendous pressure holding the molecules in place. I would say certain volcanic hotspots in the mantle would be more like hell since theres magma and the like but since hell is not real I find it pointless.


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thomas81
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09 Nov 2012, 5:34 pm

Jitro wrote:
Well the core sure does resemble Hell alot.


I've heard christians say that Mars is hell.

Its reserved for the bad souls at judgement day.



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09 Nov 2012, 5:45 pm

thomas81 wrote:
Jitro wrote:
Well the core sure does resemble Hell alot.


I've heard christians say that Mars is hell.

Its reserved for the bad souls at judgement day.
If anything I would say the planet Venus!


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thomas81
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09 Nov 2012, 5:54 pm

AspieOtaku wrote:
thomas81 wrote:
Jitro wrote:
Well the core sure does resemble Hell alot.


I've heard christians say that Mars is hell.

Its reserved for the bad souls at judgement day.
If anything I would say the planet Venus!


I think hell would be worse if it was cold. My absolute fear would be being caught stark naked in a freezing cold environment. For eternity. The ninth circle of hell is portrayed in Dante's Divine comedy as a lake of ice that imprisons the frozen souls of traitors.

I've always regarded the Roman version of Pluto's 'underworld' as darker and more macabre than the Abrahamic vision of fire and brimstone.



naturalplastic
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09 Nov 2012, 5:59 pm

"Hellfire and brimstone."

Gotta have the brimstone.

Brimstone is sulfur.

Is there sulfur at the core of the earth?

Its all heavy stuff like Iron and nickel down that far I believe.



Misslizard
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09 Nov 2012, 8:53 pm

In Buddhism there are cold hells,hot hells,and ones where you are possibly imprisoned in rock,they are not real ,but your perception of where you think you are.Sort of like a very real dream,but I dont do it justice trying to explain it.



ruveyn
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09 Nov 2012, 8:57 pm

Mostly molten iron, very, very, very hot. Heated by the pressure of thousands of miles of mantel and magma pressing down and radioactive materials fissioning and releasing the energy as heat.

There is not Hell Down There. That is just superstitious nonsense.

Modern science has not only denied a hiding place for God, it had also denied the Devil a place to live.

ruveyn



Jitro
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09 Nov 2012, 9:02 pm

ruveyn wrote:
very, very, very hot


Sounds like Hell.



Misslizard
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09 Nov 2012, 9:06 pm

^^^^^Sounds like an average Arkansas summer.



ruveyn
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09 Nov 2012, 9:06 pm

Jitro wrote:
ruveyn wrote:
very, very, very hot


Sounds like Hell.


The word Hell really means bright, not hot.

In any case Hell has almost as much chance of existing as a physical thing as God does.


ruveyn