i think these scientists were part of that vodka drinking competition

Damn aarkie, that's a lot of midgets.

no obvious tag? you guys haven't heard of lord kimbote?

Zion?

\Simmer down, Matrix fans...its been said, so don't repeat it.

nu-UH! Didn't they see that movie "CORE"? Or it's fraggiles!!

cool

Key paragraph:

Big gas throwing out took place in the North and South Poles. Deep big holes aroused there.

Ummm, I thought "pravda" meant "truth".

I for one welcome our new interior-dwelling overlords.

http://www.hollow-earth.org/

Deep big holes aroused there.

You guys can go ahead and run with that one..

November 19th must be "Let's Start Dropping Acid At Dawn Day" in Russia.

And doesn't "Pravda" mean "truth"?

nuh nuh nuh nuh, land of the lost~

I meant Russia of course.

Do they all have Australian accents? Only Kathy Ireland knows for sure.

Pellucidar or bust!

old. the hollow-earth theory has been around for centuries. finally, it got proven true by reputable scientists.

Yeah, we know...crab people. Saw this last week on TV.

Are you weightless at the center of the earth, or would gravity pulling from every direction just rip you to pieces?

/FARK.RU?

Super_Nintendo_Chalmers

X-Files reference! Awesome!

So *that's* what he meant by Middle Earth.

I'm guessing that underground nuclear testing is bad for the people of this so-called middle-earth.

I think it's funny that the Hollow Earth people consider the Flat Earth people their arch-enemies.

It's like getting a bunch guys who think they are Jesus together, and letting them figure out who is the real Jesus, and who is the wacko.

True story.

Also, Huskadoodle, gravity doesn't pull from the center of the earth. The earth's center of gravity is there, so at the dead center, you'd just sort of float.

I think I read somewhere that "pravda" means "truth"

Seriously, why is the tag "interesting"?

Personally, I'm FASCINATED! I want to meet the long lost Atlantians!

nuh nuh nuh nuh, land of the lost~

I meant Russia of course.

Here comes the crackpot science!!

Maybe these people have weapons of mass destruction! I hope Bush doesnt read this article or we will have "Operation Underground people Freedom" on our hands.

Biggest load of shiat I ever read.

/move along

It can't be Fraggles because the Dozers would need radishes.

I'm confused.

The Earth can't be hollow because it's flat. Idiots.

Fraggle rock!

Queen Mushroom

If the earth was hollow, you'd float anywhere in the interior, not just the center.

waterbottle

Very nice, but obscure reference. I watched that movie years ago when I was in my Kathy Ireland obsession phase.

Dwarves?

What does pravda mean? Truth or something?

(can't help self.. must fight conformity..)

So where's this photo of the hole they talk about?

Anyone click the FARK.RU link at the upper right of the article?

Duh, everybody knows the Fantastic Four defeated the Mole Man & his minions in issue #1,

In other news scientist discover that the heads of the Pravda editors and writers are also hollow, probably wont support life, but there is a light bulb in them that glows out their ears..

Thats it! I'm moving to inner earth....

Ohhh... very erotic:

Big gas throwing out took place in the North and South Poles. Deep big holes aroused there.

the4guy... no, its only near the center that the force of gravity from teh various parts of teh earth would equalize. anywhere else, and you'd still be attracted to teh ground in the direction opposite the shortest line to the surface. but said gravity would decrease teh deeper you got.

i prefer: "pregnant man gives birth... that's a fact."

wtf is up with fark.ru ? that licensing or pimping?

Love these translations:

Big gas throwing out took place in the North and South Poles. Deep big holes aroused there.

This rumor is fascinating in that it still continues today. I first read the (1947?) book (This hollow earth?) back in the 60's, but technology and aviation had already pretty much discounted the whole thing by then...

With sattelite photography and whatnot, I don't see it as a viable theory

Kooky Russians...

I used to work with a guy who totally beleives in this. He says, "Notice how you can never find a sattelite image of the north pole of the Earth? It is because the government wants to keep the portal to the middle earth a secret." He also beleives that Foo Fighters are ships from Middle Earth. He is also in a cult called Ramtha. I do not subscribe to his theories, for the record.

Where's the Pravda Page 3 girls?

Demetrius: That popped into my head also. Nice original series reference.

Anyone click the FARK.RU link at the upper right of the article?

Farking russians stole fark!

th4tguy

If the earth was hollow, you'd float anywhere in the interior, not just the center.
_____

I don't think that's true. Hollowing out the earth doesn't make the whole interior the center of gravity (it does make the planet very unstable, but that's a different story). The center of gravity would still be at the dead center of the planet, and all matter would be pulled toward it.

Sounds like the Savage Land from Xmen.

what the fark down pravda mean!? Jeez, you think at least one person would've mentioned it in this thread!?!

K sozhaleniyu, v Pravdye pravdiy nyet.

cleveoh....

I was hoping to make the first reference...Damn! Good Job...top notch.

Queen Mushroom

Well, if the earth were hollow, the whole dynamic of gravity would be changed. What keeps the upsidedown people walking around on the undercrust from flying out to the sun at the center of the world?

"deep big holes aroused there."

Sounds hot. I'd hit it.

jeebus! how the heck do Russians know what the hell is going on when normal news, and this stuff, are all jumbled together ?

Just knowing the news would be a game of Kremlinology

as for gravity

people on the inside surface would fall into the center, and almost reach oteh other side (with losses due to drag forces), then back the other way, back and forth, until finally coming to rest in the center, floating there.

add a few thousand inhabitants, and they would all end up in a very bruised ball of people and furniture hovering at the center, being pulled in a small orbit from the the tidal forces of the moon.

Fark.ru is pretty cool.

God, that article sounds like it was run through a Russian->English translator. And a bad one to boot.

Its not news...Its Pravda.

... well, atleast they put a sane guy somewhere near the end. I'm thinking of making a visit to the north pole, just to be sure though. :)

Really, is Fark.ru a ripoff?

This reminds me very much of a "Choose Your Own Adventure" story I read 20 years ago....



By the way, I think Pravda means "truth," doesn't it? I can't believe no one's pointed this out yet.

Fark.ru is pretty cool

It would be cooler if someone knows which of those articles are boobies links.

Where's David Icke when we need him?

Hitler believed this entrance to the inner civilization existed, and he even sent expeditions up to the North Pole in the 1930s. Not saying I believe it; just saying MANY people (some sane, some not so sane) believe it does exist.

Do a Babelfish translation of Fark.ru for some good laughs.

Heh. Can anyone who reads Russian tell me if this was from the "silly section" of Pravda?

The writer ends the article with debunking information. They may be crazy, but they are not stupid.

Doesn't Pravda mean Truth or someting like that ?


I think I heard that somewhere before

Am I too obscure? Google Pellucidar to see what happens when one Burroughs into the Earth core...

X-men? Fantastic Four? Kazar? Derivatives all!

There's a book about this, called "The Descent", by Jeff Long. It's fiction, but brings up a lot of the same things. As long as Haddie stays down there and we stay up here, we'll all be okay.

told you.

And angels will fly out of my ass. This should get the dumbass tag.

"Its not news...Its Pravda."

Ain't that the truth...

*rimshot*

Yes, means "truth", it is communist-party oriented though...

Huskadoodle

Well, if the earth were hollow, the whole dynamic of gravity would be changed. What keeps the upsidedown people walking around on the undercrust from flying out to the sun at the center of the world?

It's all speculative, really, but gravity itself wouldn't change. The main problem with a hollow world is the fact that the world would be in danger of imploding, depending on how large the hollow area is. And, of course, the mole-people wouldn't be walking on the underside of the crust, simply because gravity would pull them down just as it does us.

A more plausible explanation is that the Earth isn't hollow in the sense of a ping pong ball, but is laced with underground tunnels like a piece of Swiss cheese. A network of caves wouldn't mess up the planet's structural integrity nearly as much as a fully hollow center, and, assuming the tunnels are near the crust or upper mantle, wouldn't be so hot as to make human life impossible.

God, I can't believe I just typed all that.

I don't think that's true. Hollowing out the earth doesn't make the whole interior the center of gravity (it does make the planet very unstable, but that's a different story). The center of gravity would still be at the dead center of the planet, and all matter would be pulled toward it.

The center of gravity would be at the center of the planet if you are outside the shell. Inside the shell you would be attracted to the side you're closest to. Gravity has an inverse square relationship so the far side of the walls would have almost no pull on you. Plus the shell would have to be made of lead or some other dense material to have the acceleration due to gravity that we see on the outside.

Here's a screenshot of Fark.ru after it has been translated.

Good stuff.

Some of their tags are:

Erotic
Criminal
Tempting
Terrible
Compromising Material

I like that last one :)

Ah, this is nothing. What really interests me is, the mirror planet earth that orbits on the other side of the sun so we can never see it, does it have a civilization living in its hollow core? And does the Perfect Order know about this?

is fark.ru sfw? just wondering...

Deep big holes aroused there



Hey, there's people in there!!! Hi guys!!!

The last word on gravity... trust me, I'm a physics nerd.

If the earth is a hollow shell of some constant thickness, there is no net gravity on the interior.

Gravity anywhere inside a hollow spherical shell nulls out to zero. That's because the gravity drops off over distance according to an inverse-square law (Newton, not Einstein).
If you dig a hole down to the core of a solid sphere, gravity drops off linearly, so at the surface it's 1G, halfway down .5G, etc.

Hehe, the babelfish translation IS funny: quick link for the lazy.

I like this line the best:

The Sun energy penetrates there through the holes in the Poles and accumulates in the center.

Of course! The energy accumulates at the center!

...and then the C.H.U.D.'s started chasing me......

I bet it is the C.H.U.D.'s--or the Morlocks

In my sad and pathetic live its always nice to find something that makes me laugh so farking hard!

"What really interests me is, the mirror planet earth that orbits on the other side of the sun so we can never see it, does it have a civilization living in its hollow core?"

Only the High Evolutionary knows for sure.

FWIW, the Fantastic Four movie has been moved back to 2005 according to this:

http://www.superherohype.com/x-men/index.php?id=449

The Russians got Drew drunk on vodka, and he gave Fark.ru his blessings. Notice that Fark.com is linked as an "Information Partner" along with The Christian Science Monitor. Probably the only place those two entities will ever appear together.

dBaggins

Your Fark login name makes me laugh every time I see it.

Sample headlines from fark.ru:

"The demonstration of linen was such erotic, that the spectators thrust to the models of money into the shorts"

"THEY EAT NOT ONLY DOGS or STORY about HOW I TRIED THE COCKROACHES"

"The dependence of man on the computer sometimes becomes such strong which, similar to the dependence of narcotic, pushes to the crime"

"It is guilty cell phone of the fact that the schoolboys fell ill with cancer"

It's GOLD, Jerry! GOLD!

Queen Mushroom

In th4tguy's defense, if the earth were hollow you would float anywhere within the hollow. Even if a subject were moving toward the center, it would technically be floating since it can't stand on the ground.

I bet the name of their city is Zion, and they have ships that fly using gravity pad things, and they have EMP weapons, and big gates.. uh yea.

YAHUAHSHUA

as for gravity

people on the inside surface would fall into the center, and almost reach oteh other side (with losses due to drag forces), then back the other way, back and forth, until finally coming to rest in the center, floating there.

add a few thousand inhabitants, and they would all end up in a very bruised ball of people and furniture hovering at the center, being pulled in a small orbit from the the tidal forces of the moon.

BaconStation

how if the earth was hollow it would crumple in upon itself

Why?

"The Sun is unable to lighten this area because of the equator axis incline!"

Yay!!! Horray!! Yipee!! Lets here it for the Equatorial Incline!!!

dbaggings So it's like a tiny Dyson Sphere then? Hm... I may not be a physicist but I would think it would be hard not to scorch the inside wall that close to a sun :)

Totally, totally...

This sounds believeable. Like a story that I made up the other day about the gummy bears who lived in the tree (in pueblo style houses) that overlooked the meadow that had the river running through it where the deers drank.

Hey man, stop knocking Pravda. This is by a few orders of magnitude more accurate than they were in the days of the USSR. They're getting better, honest!

I knew it. I'm going to inner earth.

I wonder if they have a starbucks yet?

Pish posh....we all know that the Fortress of Solitude is at the North Pole...duh.

Oh joy middle earth... I'm sure the people there have a theory about lower earth too...
(sarcasm for the initiates)

The archive of fark.ru goes back to August 2001. Why have we not been told of this little gem! I haven't laughed this hard in a long, long time.

Clearly, our first priority ought to be converting these heathens to Christianity. After that, we need to figure out how to convince them the earth is flat.

2003-11-19 01:04:19 PM Huskadoodle


Queen Mushroom

In th4tguy's defense, if the earth were hollow you would float anywhere within the hollow. Even if a subject were moving toward the center, it would technically be floating since it can't stand on the ground.

Of course the earth isn't perfectly spherical so there would be some places where you could stand on the undersurface. Under Mt. Everest for example.

Thanks Huskadoodle.

I stand by my entire claim. I'll look for a link that confirms it.

The last word on gravity... trust me, I'm a physics nerd.

If the earth is a hollow shell of some constant thickness, there is no net gravity on the interior.


bzzzt! sorry physics major, back to class. the only place where the shell will not exert a gravitational force is the center of the shell.

draw a picture and write your integral out.

Some fark.ru tags:

Steeply
It is mysterious
It is interesting
It is tempting
With relishiat is settling
It is healthy
It is class
It is terrible
It is strange
It is interesting
It is erotic
It is ironic
Opinion
It is terrible
It is class
It is ridiculous
It is class
Special view
It is tempting
It is erotic
It is interesting
It is erotic
Compromising material
It is erotic
It is erotic
It is interesting

In the Soviet Union, the Earth hollows you

Aaaahhh... Now I see why we always get links to Pravda.ru. Fark.ru is registered by the same guy that runs pravda.ru.

/All is clear to me now...

from babblefish of fark.ru

"To tyue system of channot of find to tyue of the sirloin of spechifiyed. "

Mmmmm.... sirloin....

ipomoea

FYI, the translator adds "it is" to all verbs.

BULL SHIAT! What a bunch of Bull Shiaters!

Wait isn't that in Matrix.... Zion right?

That is SOOOOOOOO cool! Fark in RUSSIAN!

Love it! Did y'all click that FARK.RU at the top right of the article? Isn't that outrageously cool?!

I registered on Fark.ru

"We congratulate, you are successfully registered!"

I can't wait to read the comment threads over there...

dbaggins

I prefer using a gaussian surface, symmetry, and the integral definition of gravity. God, why does this feel like this argument should be on /.?

no, fark ru

FARK in Russian... That is pretty awesome!

Hey, are they aloud to do that?

I want FARK in Spanish.

"Big gas throwing out took place in the North and South Poles. Deep big holes aroused there."
Sounds more like planetary or*l/an*l action than geology class.

Stupid profanity converter. It took two lines -- "With relish" and "It is settling" -- and converted them to "With relishiat is settling."

Isn't this the plot for Indiana Jones 4?

The #2 top farquhar (submitter) on fark.ru is wldncrzy14.

Hmmm...isn't he a farker over here too?

Paulson: It's because there is no present tense of the word "to be" in Russian (only past tense "was/were" and future tense "will be").

Yes, I know it's the translator that adds "It is" to all verb-like words... but it's far more entertaining to leave them on there...

Sweet! Gravity Flame War!

No net gravity inside a hollow spherical shell. Start at the dead center of the sphere, definitely no gravity there, everything cancels out. Now move away from the center. You are indeed closer to one side and it's gravity is felt more, but more of the shell is now pulling in the opposite direction, cancelling forces. All the math does work out.

As someone who speaks French, I can tell you that Babelfish is a piece of shiat when it comes to translating grammar, sentence structure, and all those things that can't be so easily determined. It works just like someone looking up the words one at a time in a Russian-English dictionary would- badly.

We can assume that their headlines, when properly translated, make just as much sense as a regular Fark headline.

/In other words, little to none.

I knew it all along. The drow live in the underdark and perform horrible rituals in honor or their dark goddess Lolth, Queen of the Demonweb Pits.

They WILL wage war against us surface dwellers...it's just a matter of time. Thankfully, Drizz't is on our side.

If you look at their top "considerations" (I'm assuming that means articles) on fark.ru the headline of the number two "consideration" is: 100 sites of children's pornukhi (5918). With a "Porno" tag.

Is that legal over there? Sickos.

BatBoy surrenders...

This was discovered years ago by John Agar (ex-hubby of Shirley Temple) and Hugh Beaumont (Ward Cleaver), captured on film in the Mole People. Alan Napier (Alfred the Butler from back in the day) is one of the Preists that worship Ishtar deep down in the earth.

On a related note, this footage was used again when "The Wild World of Batwoman" (later renamed "She was a Hippy Vampire" for obvious legal reasons) used clips from "Mole People" like stock footage.

Ah, the benefits of puppet shows.

did anyone notice that fark.ru has 10!! erotic links today? And I thought fark.com was the best fark for boobies.

BaconStation

The thickness would be enough that even if it were a "shell-earth," the two opposite sides of the shell would attract each other


Sure, but the opposite sides would attract each other from all direction thereby placing the force at a tangent to the surface. Not to mention to have the same gravitation characterists we see the shell would have to be very dense which would give it more structural stability. I was a physics major long ago, but I've gone rusty. Can anyone with the equations help me out here?

thanks for the link mrnix

Mr. Madison, what you've just said is one of the most insanely idiotic things I have ever heard. At no point in your rambling, incoherent response were you even close to anything that could be considered a rational thought. Everyone in this room is now dumber for having listened to it. I award you no points, and may God have mercy on your soul.

doh, I did my integral wrong

dammit

I need to go back to calculus

you free float in a perfect sphereical shell

dam

This idea was indirectly confirmed by the report on an American high rank military commander to the North Pole.

They're gonna hang Santa for leaking classified information

/runs away sobbing

2003-11-19 12:35:18 PM SouthernFriedHomo
November 19th must be "Let's Start Dropping Acid At Dawn Day" in Russia.

Mmmmmmmm Acid at dawn.

d'art, If you read their "About Us" link, you will find that Pravada.ru is not the same organization as Pravda, the newspaper. Both, however, have staffers who previously worked for the State organ.

And the #1 consideration's headline is:

"Genital kunstkamera".

Do I even want to know?

I THINK PRAVDA MEANS TRUTH
HEHEHEHEHAHHAHEHEHEHAHHEHEHZHHZDHFHLSDHKKGK
*eye twitches*

Wooo-motherfarking-hoo!!!

dbaggins: Bzzt! You're wrong. The physics major is right. Outside a spherical shell, it's as if you're attracted to a point mass at the center. Inside the spherical shell, you're weightless. Thanks for playing.

These men follow a long line of great Russian scientists, including Trofin Lysenko, who was for some time the USSR's chief agriculture minister and head of the "Institute of Genetics of the Soviet Academy of Sciences".

Problem?

He followed Lamarck, believing that environmental influences made changes across generations. That is, he believes giraffes got long necks by stretching their necks towards tall leaves for many generations. This theory was widely dismissed by that time, but he was a hardcore Lamarckan.

He convinced the Soviet government that if you plant orange trees a little further north each year, they'll eventually be able to survive the arctic weather. Since the government bought this, they destroyed large amounts of viable crop-land for oranges... and watched it fail miserably.

OK, I haven't smoked near enough natural herb to buy this article.....

Ok Physics geeks. Assuming a hollowed sphere was spinning fast enough would centripidal forces come into play near the equator?

ptermit

thanks for correcting something I already figured out myself.

you are a genius

My favorite part that no one has even touched on here is "
Nedelin believes. Gas expands when being heated" I mean thats a pretty serious accusation, consitering most scientists dont already know this.

/endsarcasm

Really. Come on. This submission should be deleted, the submitter banished to russia, and whiped with a wet poodle. This is just stupid.

ptermit

Thanks for standing by me. By the way, physics nerd, not physics major.

Fark.ru's version of the FarQ is called the "FArT"

You can't make this stuff up.

Anywhere inside a *HOLLOW* shell, you feel no gravity.
Anywhere inside a *SOLID* sphere, you are pulled to the center.

You don't feel any net gravitational force anywhere inside a hollow sphere *because* of the inverse square law. If it were anything else, that would not be true. In fact, this is very similar to how we experimentally verify that the electric force is inverse square, too.

And you would feel a teeny bit of pull because the Earth isn't a uniform sphere, yes, but you also feel a teeny bit of force because of the fat guy sitting next to you. It takes the whole Earth to make one measly gee, a mountain, which is only a small fraction of Earth's mass will make an unnoticeably small contribution.

And the Earth is not hollow, because we can detect seismic waves from earthquakes, nuclear bomb detonations, and really fat people jumping from the opposite side of the planet. We can even use these to determine the core's composition. Also, the Earth would not have the magnetic field it does if it were hollow.

I *am* a physics major, so no arguing with me! :-p

If the earth were a hollow shell, there would be no gravational force within the inside. You don't need to do the integral, use Gauss' law.

By analogy to the electric field, the gravitational force inside a hollow earth must be zero.

link

Wow. For a while there I thought I was surrounded by nerds? WTF? Did ANY of you pay attention in physics class? Or did you take that in high school too? Einstein gave us a better description of gravity and simplified enough that all of you should know that it doesn't matter what the forces are at the center of the earth, you'd be crushed by massive amounts of dirt and rock when visiting.

Iceberg659
Ok Physics geeks. Assuming a hollowed sphere was spinning fast enough would centripidal forces come into play near the equator?

If it spins at all yes. Not sure if you call it centripidal or centrifugal though.
At the rate the Earth rotates, it's really not enough to be important.

BaconStation

The rest is molten (think tectonic plates and earthquakes)

Work with me here. If it's hollow then there is no molten lava. We still see gravities acceleration as 9.8m/sec^2. something has to account for the mass that creates that force. It's either a black hole in the center in which I could see what your saying. Or the mass is in the shell itself which could create the structural stability needed.

Is anyone willing to explain air pressure within various regions of the hollow sphere earth? How many atmospheres does the average upside-down person exist in on the under crust? Is it opposite of the outer crust? It seems an upside-down person standing atop inverse Everest would be experiencing significantly greater atmospheric pressure than a similar upside-down person at inverse sea level.

What about water pressure?

well, I DID need to do the integral, because I'm a math nerd, not a physics nerd. and I did it wrong. so you can all take your turn correcting me, again and again and again and again and again.

but you don't get to just sit there however.

you still have tidal forces.

"The authorities recommended Vice-Admiral never tell anybody about the world he saw and put him under strict control for the rest of his life".

What the fark does that mean! This article is full of crap.

/done wasting time. Going back to my coffe break now.

lolo81
FARK in Russian... That is pretty awesome!
Hey, are they aloud to do that?

Not on Mississippi they aren't!

I can't handle two Farks. I waste enough time on one already.

More info

This means all sides are pulling you equally, so you feel no net force anywhere inside the sphere. This is something Newton proved centuries ago, but we can see how it makes sense intuitively. As you approach one wall, a small amount of mass is pulling you with great force. But, on the opposite side, a huge amount of area is pulling you with a smaller force. It all cancels, so there is no net pull from the sphere! This works for any inverse square field, such as electric fields.

Another reference

Huskadoodle

Dammit, haven't you been listening? The fluid pressures you are talking about are a result of gravity. Like the clown said in It, "it all floats down here." No pressures at all. No underside dwellers.

Can anyone tell me what "NSFW" is in Cyrillic characters? I'd like to check out some of the links on FARK.RU, but I'm just not sure...

I had no clue so many theoretical physicists visited FARK ...

Absolutely definitely no net gravity in the middle of a hollow sphere. You can simplify it to a hollow ring, too, same net effect. Basically, since gravity decreases as a function of distance squared (F=G(m1m2/r^2), the mass closer to you pulls on you much more (squared...) than the mass across the ring. The equation above is between two points, but it can be transfered through integration and other fun calculus to objects and such.

Lets assume you're about 1/2 r of the way towards the center of the ring horizontally, and centered vertically just for argument's sake (and easier visualization - obviously if you're 1/2 of r in, then you can reorient the sphere any way you want, but it makes it easier to see this way). I don't feel like doing the actual equations, and then trying to type them into ASCII or make an image, so I'm going to simplify and not do actual equations. Sorry, if you want to do them, be my guest.

So, directly up or down from you, you've got shell, an equal distance from you. We're assuming constant thickness here. Since distance is the same, those two points cancel out. This is intuitive. But what happens when we look at an area just right of that point on top? Well, the area just to the left of the corresponding spot on the bottom is going to be just slightly larger than the other side. Why? You're looking at the same angle spread on either side. Think of pointing a flashlight at a wall. Its round, right? Now point the flashlight over to the side of the same wall. Notice how its oval now? IE, covering more area? Same thing here.

Now, that increase in area means its got more mass to pull with, even though its farther away. In fact, because of the nature of the curvature of a circle, the difference exactly cancels out the difference in the squares of the distances. Its true. Go find somebody who knows multivariable calculus to prove it to you if you don't believe me.

So anyway, our two little spots cancel each other out. Extend our little spots to cover all the area just back of vertical (the close side) and just forwards of it (the far side), and you'll find it all cancels out, due to the fact that there's significantly more mass on the far side.

Interestingly, the same can be applied to a sphere of solid mass, kind of. Except until you get to the exact center, there's still a sphere of solid mass beneath you. Net effect is that you can totally ignore the gravity of the portion of the sphere above you, because the remaining ring around the "sphere" you're on cancels itself out. When you get to the EXACT center of the earth, you're no longer on a sphere, and essentially you just have a really thick ring around you. So if there's a cavern in the center in the earth, no matter how small, you could happily float around in there in zero G.

Until you get incinerated by the sun in the middle, but that's another story.

/physics hat off

Like this is news, hasn't everyone known ablout this for years?

C.H.U.D. Cannibalistic Humanoid Underground Dweller

Well, I for one welcome our new seldom seen underlords...

What if WE are inside of a much larger planet? I mean, our solar system.. and maybe even the Universe as we know it... what if it is all inside one big planet that is revolving around another Sun?

Let's continue warming the environment, so the polar caps will melt, then we can all walk to Agharta. (Agharta is the name given to this "underworld")

quite ridiculous, but I still want more investigation
/never satisfied.

Fark.org redirects to reesion.net, with the message: "Nothing to see here, move along."

Why, praytell, does one of the tags translate to "oEUMShchiBOOP"? Maybe Babelfish doesn't want to work for me.

It was my understanding there would be no math.

Ohh, I wanna say it again, just to make sure everyone got it!

There's NO net gravatational force inside a *hollow* sphere!!! :)

Too bad the article failed to mention that the original wacky Hollow Earth theory was dreamed up by Captain John Cleves Symmes in 1818. He even lobbied congress to fund an expedition to the polar opening. Symmes has inspired a lot of interesting science fiction from the likes of Howard Waldrop and Rudy Rucker.

th4tguy

I'm just having fun with improbable science fiction theory, and I like typing nonsensical things like "inverse Everest" and "under crust"

waterbottle

Nice MST3K reference! A RAM chip for you.

2003-11-19 01:42:48 PM jonbond


Jonbond make baby jeebus's head hurt.

icon4x wrote:
"What if WE are inside of a much larger planet? I mean, our solar system.. and maybe even the Universe as we know it... what if it is all inside one big planet that is revolving around another Sun?"

Shouldn't you credit Animal House for that?

Oooohh, speaking of admirals, I know what one admiral has to say about this!

IT'S A TRAP!

Huskadoodle

It's all good.

Damn your hide, filter!!!!

craaaab people, craaaab people- taste like crab, look like people.

BaconStation

You do realize that the "sides" of the sphere are continuous objects and not point particles, right? You're way the fark off with your "numbers." Read the links that karpage posted.

Don't make me whip out the calculus, baconman, you're wrong. You have to also consider the points a little bit to the sides of you, which are pulling you down and to the sides. Consider the corresponding side on the opposite side of the sphere, the components of force going all directions but to the center clearly cancel, but you're left with some force pointing to the center. Guess what happens when you add up the forces from all the other pieces? You get the same as the force pulling you the opposite way. Zero net force.

Big gas throwing out took place in the North and South Poles. Deep big holes aroused there.

Shouldn't this be NSFW?

Bah, I read all about this theory in Edgar Rice Burroughs "Pellucidar" series. Hollow earth, glowing "sun" inside, dinosaurs, the works.

This makes me think of a couple of places that characters went in the Wizard of Oz series, especially in the fourth book, Dorothy and the Wizard in Oz. An earthquake put Dorothy and the Wizard underground in what they later identified as the Vegetable Kingdom, where people were grown and not born, and there were no children, because the children were still on the trees, being too unripe to pick. Their sun was pearl colored orb surrounded by 8 different orbs of different colors, and the light shone like the sun shone through a stained glass.

Well, I just thought it was interesting. As stupid as this article is, the theory itself is fascinating as many cultures around the world have always been fascinated with the "underworld". So, yeah, I call shenanigans, but it's still a nifty theory.

Of course, all this is coming from a chick who killed a day at work reading the Raelian webpage and links for pure entertainment.

HazMatt

I don't see anything like "NSFW" on the frontpage, but pink links (erotichno) are probably worth checking.

btw, FARK.ru seems nice, but I generally prefer reading comments, not articles, and they don't have much of that. We, russians, are lazy :(

Just another government conspiracy...duh

the_pgoat

I agree. I was just sitting at my desk for a couple of hours, stifling giggles, wishing I'd come up with that shiat first, simply because it would make a damned good sci fi novel. Especially the detail they go into to "prove" their points. And the Embassy proposal. I couldn't stop laughing when they said they actually contacted the government of Israel to get permission to build an embassy in Jerusalem for our Elhoim alien creators.

I'm sorry, I wasnt very Australian there for a minute...

Glad to see "The Descent" was finally published in Russia...

Everyone's talking about fark.ru, has anyone checked out FARJ.COM?

pass that shiat over here brother.

jonbond,

you're so full of shiat it hurts. In response to: "Go find somebody who knows multivariable calculus to prove it to you if you don't believe me." I know "multivariable calculus" and I don't believe. If you want to impress the plebes with your "knowledge" of "Physics and stuff" feel free to continue to do so around your fry machines and burger stations. Dropping made up calculus bombs doesn't work around salaried professionals.

TIA,
Fortune Cookie

what was that about a man entering an aroused hole?

impaler, gravity is from mass...with all this gravity and weightlessness talk...I figure I'd clear that up before we confuse anymore people.

Big gas throwing out took place in the North and South Poles. Deep big holes aroused there.

So that's where my ex-wife ended up...

BaconStation
First, impaler's "point" was that since there are more points exerting force away from the close surface than towards it. Basically, there is small number of points pulling you towards the closest wall, and a larger number pulling you toward the further wall. Thanks to the magic of calculus, it can be found that the forces in a hollow perfect sphere will always add up to a net zero because force from a singel point is inversly proportional square of distance (x/d^2), while the number of points pulling in given direction is directly proportional to the square (x*d^2).
Secondly, the density of air is 1.29 kg per cubic meter. So, a cubic kilometer of air would weigh 1.29 million metric tons (my dogs's fleas bow down before yours). Since the earth has a diameter of 12,756 km, round down to 10,000 km to account for the shell and to be conservative, and we get a volume of 3/4 times pi times half the diameter cubed, or 2.9 x 10^11 cubic kilometers, or 3.8 x 10^17 metric tons of mass. While that is many orders of magnitude smalle than the Earth's total mass of 10^25, or even the moon's (7^22)I think that would have a significant effect.
In conclusion: If the earth was hollow, and at vacuum, you would float around weightless. With it filled with air, you would fall towards the other side, not reach it, fall back and forth coming to rest at the center.
Everybody happy?
VOR

Shell Theorem:
A uniform spherical shell of matter attracts a particle that is outside the shell as if all the shell's mass were concentrated at its center.
Inside a uniform shell: A uniform shell of matter exerts no net graviatational force on a particle located inside it.

If the Earth is hollow we wouldn't be able to tell (from gravity anyway), gravity would behave just as it would if the Earth were solid. However, anyone inside the Earth would experience no NET gravitational force and would just kinda float around.

since no one has said it,
DOESN'T "PRAVDA" MEAND "TRUTH" ??!?! OMGWTFROTFLMAO

As cool as using science is to prove and disprove theories (and don't get me wrong, it can be fun), I just wish there were more discussion on this thread about how so many people in history did believe in an underworld of sorts, and about folkloric references and such.

Just proving to the world again that there are many different breeds of geek.

BaconStation: If all the particles of the gas are evenly distributed, they all pull equally on each other. What's special about the region at the center?,
Because the center is where all the forces balance. Acceleration is caused by unbalanced forces. If the net force on an object is other than zero it will acclerate in the dirctio of the force. Hence if you are in a body of gas, if there you are to right of the center, there is more gas particles exerting their gravitation pull in the direction of the center than away from it. Therefore you would acceerater towards the center. At the center, forces balance, and you would stop accelerating. You would have a volicity and keep moving, but once past the center, you would accelerate in the opposite direction. Eventually, your volicity would reach zero, and reverse back toward the center. This would continue on, until all your initial potiential energy (which, in reality, is just the net differnce in forces at your starting point)is lost due to air resistence).

VOR

Hmm...when I did the math, the density of air came out closer to 1.9 kg/m^3. Of course, I did round the mass of N2 and O2 as 48 and 32 respectively, and assumed that 80% of the atmosphere (air) is N2, and 20% is O2...but I didn't think I'd be that far off...oh well. At least I'm not claiming to be a chemist/physicist.

gause,s law dictates that the force due to graviy on the inside of the earth (make the inner surface a close gaussian surface.)is zero. Gauses law is used for magnetic charges but it can be applied to grvity since the law s the same.(except there i no negative and positie gravity)

Mindark
impaler, gravity is from mass...with all this gravity and weightlessness talk...I figure I'd clear that up before we confuse anymore people.

Actually... To be das ubernerd here - gravity is from the curvature of spacetime, or is it the other way around?

Been at work way too long now.

It was difficult but I managed to masturbate to this thread.

so if they are lower earth then maybe we really are on middle earth

maybe those people are inhabitants of mordor and must be destroyed!!!

VOR--The air inside of the sphere would naturally reach equilibrium, so there is no reason to assume that a denser air mass would exist in the center to pull you there and trap you. This of course brings up density and its relationship with gravity. When it comes to "generating" gravity, mass isn't all that important if the density is incredibly low, and the density of gases is very low. Furthermore, gas molecules aren't as attached to one another as molecules in a liquid or solid, so the gravity of the solid mass would win out over the tiny molecular gravity of the individual gas molecules and, as the gas molecules collected around the solid mass, an atmosphere would form (which sounds familiar *takes a deep breath of earth's atmosphere*).

So now, through these various posts, we have built a hollow sphere, with equal density and mass, filled with air, that would have no net gravity on the inside, (as has been repeated more times than is healthy).

the only crab people that I've ever met were in this girl's bush.... mmmm....bush...

Forget about the gravity in a hollow earth, I am worried about the gravity of the sun on the inside! If there is enough gravity in the mass of sun to overcome the strong nuclear force and ignite, then the our surrounding planet is going to implode!
Somebody should do something about that quick!

Everyone knows gravity is a push phenomenon rather than a pull.
Dark matter is responsible. There is less dark matter between the
Earth and the Moon that beyond the Moon, therefore the push effect
is stronger and pushes the Moon towards Earth.

BaconStation
The region at the center is special because you have the exact same number of point sources of force in all directions. Every single force in every direction is exactly matched by an opposite one. Now move away from the center: If you are halfway to one side, all the points between you and the close side are counteracted by points on the other side, but if you are 1 KM from one side, and 4 KM from the other, then there are 3 KM of points in a straight line affecting you. Even though the unbalanced points are futher away than the balanced points, gravity will still pull you towards them. If you consider all the additional points not in a straight line, the effect is increased.
Mindrak I got my number from
http://hypertextbook.com/facts/2000/RachelChu.shtml
which is part of good site that list a lot of facts, with the sources and explanations.
HazMatt Mass and gravity are still poorly understood. We can only really define them in relation to each other. It is equally valid to call mass the the measurement of gravitational effect as to to call gravity a force exerted by all mass. Newton did not try to explain it, he just dtermined rules to describe it. Einstien tried ot explain at as curvature of space-time, but that theory only works on large bodies, it breaks down when talking about subatomic particle. The Grand Unified Theory, or a theory that explains macro and micro physics at the same time, has been a goal of physicists for the last 70 years.

VOR

So the earth is a giant 'dison sphere'? Are we going to find scotty somewhere living forever in a transporter loop?

Ok, so everyone is ranting on and on about the gravity part, but what about the Reptilian overlords, huh? Don't we all fear snakes and reptiles! It's a repressed race memory!!!

Disprove THAT with your precious physicsinessness!

HA! See! It really is true!



;)

Your "no gravity" theories would only be true inside of a pefect sphere with equal mass distribution all around. Isaac Newton proved that 400 years ago.

But, seeing that the Earth is an oblate spheroid with a crust that can hardly be considered homogeneous, and if it were hollow, you would be pulled to the side with most mass.

I'm so smart now. I've learned pravada=truth, there is no gravity inside a sphear, Earth's crust is a sissy that can't support itself, and Hitler WILL be in EVERY thread ever. 2003-11-19 12:53:06 PM IgnatiusR
Where's David Icke when we need him?
Hitler believed this entrance to the inner civilization existed, and he even sent expeditions up to the North Pole in the 1930s. Not saying I believe it; just saying MANY people (some sane, some not so sane) believe it does exist.

Even after I've left work, this little flamewar is still going on.

So far, impaler is winning. If the spherical shell is filled with a gas, such as air, it will collapse in the center. If the spherical shell is hollow, the floating happens.

To the flea's nut comment: air does have a lot of mass, but its boyancy in air makes it "weightless." Yes, I did say air's boyancy in air.

BaconStation

Well then how about the fact that since no one has proven the push
theory is incorrect, it therefore must be correct?

:P

Bendeful: The air inside of the sphere would naturally reach equilibrium, so there is no reason to assume that a denser air mass would exist in the center to pull you there and trap you
As impaler point out, there are two thing wrong with that statement. The first is that sphere of with consistent density would not exert gravity. As far as the generation of gravity force is concerned there is no differnce between solid and gas. Uranium based gases can have higher density then most solids. being 100 km above the center of sphere of gas is the same as being 100km above the center of a sphere of solid with the same mass.
The second is that the the effect of gravity on gas is different than it is on solids. The reason life can exist on Earth is that the gravity of a sphere of gas (the sun) compresses the the gas at the center, causing it to heat up and fuse. In other words, the density, and pressure, would be higher at the center of the sphere.

impaler Whoa there, buddy, park the high horse. Part of the reason no one is following some of your arguments is that you know too much. Believe it or not, not everyone has had the opportunity, or inclination, for advanced physics. I personally appreciate your detailed posts, but I also enjoy reading about string theory. Knowing your right is not quite the same thing as convincing other people you are right. "I am smarter than you, so you are wrong" is rarely an effective strategy.

VOR

To have a true hollow sphere should not the inside be a vacuum? If it's filled with air, the air becomes part of the total mass of the sphere.

Husk I made that point a while back. If the sphere has any substance filling it(liquid, solid, or gas) you will always be pulled toward the center. Only in a sphere that has nothing in it but one object would there be no force toward cener. In fact, even if it was a vacuum, but you put a bunch objects in it, the gravitation force between objects would eventually bind them all together, although not necessarily at the center.
Vor

I was wondering, and if it's already been discussed and I missed it sorry. But about the whole no gravity vs gravity debate that was going on. Wouldn't it depend on the radius from the center to the wall of the sphere, and the thickness of the shell?

i.e., small radius, really really thick shell, you'd be floating in the middle.

huuuuuuuuuuuuuge radius, really thick shell. You'd be attracted to the edges because while the other side would try to pull on you with more mass to do it with, the greater distance would weaken the pull too much.

I'm just talking though, since I don't know too much about physics equations.

>>BaconStation

>>Disprove THAT with your precious physicsinessness!
>>HA! See! It really is true!

>Veracity, You have committed the logic fallacy known as appealing to ignorance. Even though FARK is probably the best forum in which to appeal in such a manner, we simply cannot allow it to take place during a physics discussion. You are fined 10 credits. Be well.

--

Funny, I thought I was committing the logic fallacy known as "appealing to stupidity", but you're right can't have any of that during a serious discussion of physics on Fark!

Here's my 10 credits, I hope you choke on them.

;)

Small correction: it doesn't matter about the size of th shell as long as at is uniform in both thickness and density. If you had one really heavy side, or even spot, it would shift the center of gravity in that direction. That would mean in a hollow sphere you would drift toward that point of highest mass, and in a full sphere you would drift toward the center of gravity.

VOR

Gravity sucks.

SherKhan, you actually managed to read that "Tanar of Pellucidar" tripe?

I much preferred "John Carter of Mars"...

I'm currently in a physics class and we happen to be talking about gravity this week. Can someone here with a clue help me understand how general gravitational PE (PE = -Gm1m2 / r) relates to gravitational PE near the earth's surface (PE = mgh)?

wirthling Here is a page that explains it:
Gravitational Potiential Energy

impaler
You forgot that g=GM/R^2

Thanks. My brain hurts.

Yay for Dyson Spheres

Gravity is weak, all hail electro magnitism!

moonduck: Hehe, yup. I was, and remain, a promiscuous reader. And you're right, John Carter kicked much more ass. I liked John Carter better than all those Tarzan books too.

*inhales helium* Weeeeee!

guess that this means hell cant be!!

(its actually the biggest load ive ever read..no wonder there is still no cure for cancer)

aside from the physics lesson, can anyone explain WHY there is a big farkin' hole at the north pole, and what's inside?

I heard somewhere Pravda means Truth.

Gravety like all vector forces act from the centeroid of the object. The centeroid is found in an object with homogenous density by integrating the formula for the space along all three dimentions, in the case of a hollow earth with an inner radius of 5000 km and an outer radius of 6300km this formula would be:
5000 < sqrt(x^2 + y^2 + z^2) < 6300
Without going into the maths of it, the integral of this formula from -6300 to 6300 equals zero, so the centeroid is in the exact geometric center in the case of a sphere. Therefore anyone inside the sphere will be attracted to the very center of the sphere and be burned to a crisp by the inner sun.

As for the explanation that one would be attracted to the nearest side because of the inverse-square relationship, I would say that that show a missunderstanding of the general relationship. An inverse cubic relationship will do this in cirtain cituations but an inverse square relationship will allways act towards a centeroid nomatter what. Think of it this way:
If one had one's feet on the inner surface of a hollow earth, one is closest to the ground below above one's feet so that ground would be exerting the most force on them per unit of mass out of all the matter in the planet. However the amount of mass below (towards the centeroid from the object) an object in the center of a hollow object is always greater than the amount above it and the closer an object gets to a wall, the less mass is above it to such an extent that you cannot be far enough towards the edge of an object to escape the attraction of the opposite side.

I could prove this mathmatically but html is fairly awkward with math notation.

And since everyone else has said it, I should join in on the cliche bandwagon: Pravda means truth

What would be opposit of a black hole? Is it a point in space that matter can not be? A point in which force pulls away equally in all directions?

Just askin.

I for one welcome our new Physics overlords.

There was one error in the article. It mentions an otherwise unexplained fuel usage equivalent to 2700 km of flight.

It should have said enough for an extra 2,700,000,000,000,000,000,000,000,000,000 km of flight.

Otherwise the article wouldn't make sense.

For God's sake....
GRAVITATIONAL FORCE INSIDE A HOLLOW SPHERE IS ZERO EVERYWHERE:
http://www.grc.nasa.gov/WWW/K-12/Numbers/Math/Mathematical_Thinking/grvtysp.ht m

Outside of the sphere, gravitational force acts just like with a point mass, GmM/r^2.

If it were filled with air, all of the air would eventualy clump to the center from it's own gravity, just like a hunk of gas forms a star. But the acceleration from the hunk of air would be way to small to notice, because even a lot of air's mass is very small.

What would be opposit of a black hole? Is it a point in space that matter can not be? A point in which force pulls away equally in all directions?


On second thought, it would be an ever expanding point in space attempting to void matter.

Perhaps you could explain the inner core sun as the point where the expanding void reaches equilibrium with the gravitational compression created by the hollow sphere. That could in turn create a hot plasma shell (given proper elemental presence) surrounding the expanding void.

That place is full of kiddy porn, not just "underage" but i mean all out straight child pornography, disgusting.