If There was a hole straight down all the way through the earth....

[Joe Camel]

And there was a way to keep the earth cool on the inside so you wouldnt melt, and you jumped through it, you would be upside down when you got to the other side, so wouldnt you just fall back through?

[negz]

You would. Till you came to rest in the center. Then people will throw shit down the hole to piss you off and call you moleman

[ComradeAsh]

lmfao, moleman.

[Joe Camel]

Haha, I thought so.

[Anal Assassin]

I think you would get crushed under the gravity in the center.

[Anal Assassin]

now you got me thinking. how much sense does this make

http://i42.tinypic.com/oaowuq.jpg

hollow out the earth and reinforce the walls so that it doesn't callapse in on itself. have an antigravitiy mechanism that can withstand the pressure in the middle of the earth to travel through it thus saving time by only having to travel the diameter..

i'm just high. this will never work.

[Stock Market Anomalies]

now you got me thinking. how much sense does this make

http://i42.tinypic.com/oaowuq.jpg

hollow out the earth and reinforce the walls so that it doesn't callapse in on itself. have an antigravitiy mechanism that can withstand the pressure in the middle of the earth to travel through it thus saving time by only having to travel the diameter..

i'm just high. this will never work.
Am I the only one that sees A pokeball

[skyclaw441]

now you got me thinking. how much sense does this make

http://i42.tinypic.com/oaowuq.jpg

hollow out the earth and reinforce the walls so that it doesn't callapse in on itself. have an antigravitiy mechanism that can withstand the pressure in the middle of the earth to travel through it thus saving time by only having to travel the diameter..

i'm just high. this will never work.

Pikachu! Go! XDD.

OK, it does make sense somewhat. You know what my solution to that shit is? An artificial exoskeleton and a VERY long rope ladder. Or, could we not actually build a sort of elevator that will hold multiple cars on a drop spiraling along the wall like grooves on a record so that the reaching of terminal velocity will be delayed.

I already believe that there is a hole in the Earth, though. I believe that there is a black hole somewhere inside the earth. On both Hemispheres longitudinally, there are similar spots in two hemispheres on somewhat the same latitude. In the West, it's the Bermuda Triangle. In the East, it's the Dragon Triangle off the coast of Japan in the Pacific ocean to the SE). That would explain a lot of the bizarre shit going on there.

[Mantikore]

its a commonly asked question.

if it was a vacuum inside, you would fall to the other side of the earth, then fall back and forth in simple harmonic motion.

otherwise, there would be damping such that you would be floating in the core. you would feel weightless as the gravity is acting evenly on you in all directions.

[nutsack]

otherwise, there would be damping such that you would be floating in the core. you would be crushed as the gravity is acting evenly on you in all directions.

Fixed. Actually I'm not sure about the gravity, but the atmospheric pressure would crush you.

[Mantikore]

Fixed. Actually I'm not sure about the gravity, but the atmospheric pressure would crush you.

oh yeh lol forgot about air pressure :thumbsup:

[t-bolt]

There's no (perceptible) gravity at the centre of the earth.Freaky,huh?It was about the only interesting thing I learned in my astronomy class...

[comrade george]

have an antigravitiy mechanism that can withstand the pressure in the middle of the earth

got one handy?

[Mr.Happy]

It'd have to be drilled straight along the Earth's axis of rotation.

I had an idea related to this once. It involved the same basic principles and ignored the practical constraints for the purposes of televisual entertainment.

In brief, two people position themselves over opposite ends of the shaft (which should be about six meters in diameter and lined with cameras, particularly in a rounded, open space at the core) with eight-meter jousting lances. They are released at the same time and can orient themselves any way they please during the fall. Assuming you could vacuum-seal the shaft to avoid air resistance, it'd take 21 minutes to reach the center (1 (http://hyperphysics.phy-astr.gsu.edu/HBASE/Mechanics/earthole.html), 2 (http://www.physicscentral.com/poster-earth.cfm)). When they reach each other, they have to kill each other as they pass. Obviously there's a chance that both will die, but that's just unfortunate.

Extreme sport indeed. And I could guarantee tens of millions of people would want to watch it televised. It's a genius idea, no?

[beergoggles]

Would gravity really effect you while you were going down? It's not like we're attracted to the core, but the planet as a whole has the gravitational force because of its size. It seems like maybe as you got to the center, the gravity of the Earth might lessen and you'd just sit there. But then again, there are two other sides pulling on you, so would gravity change direction?

Correct me if I'm wrong, but big objects have the gravitational pull in space.

The Earth is fucking huge. I really wonder what would happen.

[Mathematics]

There's no (perceptible) gravity at the centre of the earth.Freaky,huh?It was about the only interesting thing I learned in my astronomy class...

That's sad... There is so much interesting stuff in astronomy aswell, from black holes and neutron stars to galaxy clusters.

[zuperxtreme]

Relevant:

http://www.zefrank.com/sandwich/tool.html

Drag to your location and it shows you where you would come out of. :D

You know when they say that if you dig a hole you'll end up in China? It's true in my case(Argentina) :p

[Mathematics]

Would gravity really effect you while you were going down? It's not like we're attracted to the core, but the planet as a whole has the gravitational force because of its size. It seems like maybe as you got to the center, the gravity of the Earth might lessen and you'd just sit there. But then again, there are two other sides pulling on you, so would gravity change direction?

Correct me if I'm wrong, but big objects have the gravitational pull in space.

The Earth is fucking huge. I really wonder what would happen.

All objects have a gravitational pull. As you are going through, assuming no air resistance, your speed to will be increasing to a maximum at the center, but your acceleration will be a minimum (i.e. zero) at the center. Just because the force drops as you descend it doesn't mean your speed will. Think Newton's 1st law.

[beergoggles]

All objects have a gravitational pull. As you are going through, assuming no air resistance, your speed to will be increasing to a maximum at the center, but your acceleration will be a minimum (i.e. zero) at the center. Just because the force drops as you descend it doesn't mean your speed will. Think Newton's 1st law.

Ah, alright. I understand better now.

[The Jitterskull]

All objects have a gravitational pull. As you are going through, assuming no air resistance, your speed to will be increasing to a maximum at the center, but your acceleration will be a minimum (i.e. zero) at the center. Just because the force drops as you descend it doesn't mean your speed will. Think Newton's 1st law.


This is why he is called Mathematics ladies and gentleman :cool:

Even I didn't think of that and I aced physics.

[Player 1]

i've thought of this before but never thought of posting it

[BoilingLeadBath]

Strait through? You'll hit the side.

Remember, all orbits are elliptical.

...but, let's change the idea so that the tube is the shape of the orbit. It'll miss the core by a bit... and if you evacuate it of air and then fall down it, you'll come up the other side and get to wave at the fuckers standing around at the other end. (you'll then proceed to scrape the wall on your way back to the starting point - all 8000+ miles of wall. Ow.)

[Sydney-Floyd]

I think you would get crushed under the gravity in the center.

Crushed? Gravity would be acting AWAY from you in every direction, As we know, earth's gravity is not astounding, indeed, when all of earths gravity is acting on just one side of you (i.e. you're standing on the surface) you're hardly being crushed are you? At earth's centre of mass, earths gravity would cancel itself out. Of course, momentum would carry you pass this point. So gravity would be acting outwards on one side more than the other. If there were no fricion, you would be in harmonic oscillation.

[BaconPie]

Air resistance and terminal velocity anyone?

You wouldn't hit the other side, you'd accelerate until you reach terminal velocity. Then you'd pass the center and begin to slow down. The time it takes you to slow down will be the same as the time it took your to reach terminal velocity. Seen as this didn't take you to the center (in fact it'd probably be barely past the crust!) then you would be on your way back to the center pretty quickly. Then you'd oscillate for a small time and then just stop in the middle.

I imagine it'd feel like you where constantly falling.

Ignoring air resistance then you'd just follow SHM like the guys above said. But lets try and be realistic. :p

[BoilingLeadBath]

Oh, we gonna put air in it?

Assuming constant temperature, for the thousand kilometers or so, the pressure (and density) of the air will increase exponentially: P = P0*e^(d*.13)

At a depth of 1000km, the hole would have a pressure of 2.8E56 atmospheres - WOULD have, if liquids were as compressible as gasses.

In other words: you fall for something like 50 kilometers or so and then hit a layer of liquid (due to the pressure) air. On which you will float.

[Joe Camel]

Wow, thanks for the responses guys. I have always wondered this.

[Naivalo]

in the center of the earth there is equal gravity pulling from every side so it would seriously fuck you up

[Joe Camel]

in the center of the earth there is equal gravity pulling from every side so it would seriously fuck you up

Gravity would be acting AWAY from you in every direction ... At earth's centre of mass, earths gravity would cancel itself out. ... So gravity would be acting outwards on one side more than the other.
According to him, It would not, if I am understanding you correctly. I, myself think you would just float there, like Mantikore said.

... there would be damping such that you would be floating in the core. you would feel weightless as the gravity is acting evenly on you in all directions

But Sydney Floyd says
gravity would be acting outwards on one side more than the other.

So this is not the case.

[Sydney-Floyd]

According to him, It would not, if I am understanding you correctly. I, myself think you would just float there, like Mantikore said.



But Sydney Floyd says


So this is not the case.

My explanation was pretty ambiguous. I meant at the core of the earth, earths gravity cancels itself out, so its virtual weightlesness. You'd just float about as if you were in space. Once you go past this point of weightlesness, all of a sudden there's more earth on one side of you than the other, so you're attracted in that direction.

/ambiguities?