Topic: Physics question?
no photo
Fri 10/03/14 11:50 AM
If you go through the earth's core with a heat shield which can protect you from 5000 deg. centigrades then you can't reach to the other poles.. You will oscillate inside the earth from north pole to south at a mean position of centre of earth due to earth's gravitational force.

Conrad_73's photo
Fri 10/03/14 12:08 PM

If you go through the earth's core with a heat shield which can protect you from 5000 deg. centigrades then you can't reach to the other poles.. You will oscillate inside the earth from north pole to south at a mean position of centre of earth due to earth's gravitational force.


pass that latter part by me again!
BTW,it's Degrees Celsius now!
bigsmile

Serverousprime's photo
Fri 10/03/14 01:22 PM

If you go through the earth's core with a heat shield which can protect you from 5000 deg. centigrades then you can't reach to the other poles.. You will oscillate inside the earth from north pole to south at a mean position of centre of earth due to earth's gravitational force.


Well I was assuming that they would have a propulsion system by the point that they had a heat shield strong enough to withstand 6273.15 Kelvin. But you are right without one there would be oscillation. Well, untill you hit something hard or other currents in the magma, yes there are those. Oh and don't forget the pressure of tons of molten rock squeezing your shield into oblivion. There's that too.

metalwing's photo
Fri 10/03/14 04:15 PM
The oscillation would cover less distance each time due to air friction until you stopped at the Earth's core. The assumption is that the hole would have some way to be kept open so the heat and pressure of the Earth's mantle, outer core, and inner core wouldn't matter.

If the walls of your "tube" were clear, you might see giant diamonds, separated platinum and gold, and strange things for sure.

The radiation from the uranium would be intense.

Serverousprime's photo
Fri 10/03/14 04:19 PM

The oscillation would cover less distance each time due to air friction until you stopped at the Earth's core. The assumption is that the hole would have some way to be kept open so the heat and pressure of the Earth's mantle, outer core, and inner core wouldn't matter.

If the walls of your "tube" were clear, you might see giant diamonds, separated platinum and gold, and strange things for sure.

The radiation from the uranium would be intense.


There would be the problem of the core being liquid. there maybe parts that are solid but there is definitely no gas.

metalwing's photo
Sat 10/04/14 11:01 AM


The oscillation would cover less distance each time due to air friction until you stopped at the Earth's core. The assumption is that the hole would have some way to be kept open so the heat and pressure of the Earth's mantle, outer core, and inner core wouldn't matter.

If the walls of your "tube" were clear, you might see giant diamonds, separated platinum and gold, and strange things for sure.

The radiation from the uranium would be intense.


There would be the problem of the core being liquid. there maybe parts that are solid but there is definitely no gas.


There would be in the imaginary tube. Nice air conditioned air!

The core is solid. The outer core is near solid. The mantle is viscous.

His original question was actually a thought experiment about the variation in gravity as one approached the Earth's center of mass and the effect of exchange between momentum and potential energy. The math to describe the velocities of the system is similar to that of an elongated elliptical orbit such as experienced by comets without the angular momentum component.

Amelinng's photo
Sun 10/05/14 06:14 PM

I am going to assume when you said "inner space" you meant through the earths crust and not on the surface, and funkyfranky the information you gave would require someone to know how to calculate circumference of an ellipse. I'm uncertain how many people actually know how to do that with only half of the circumference alone. I know I would need to know at least how elliptical the earth is before trying solve that sticky problem (as the circumference would deal with both radii a and b C= 2(Pi)[(a^2+b^2)/2]^(1/2) ).

Luckily, I just have to wiki the polar radii to find the answer and boom it's
6,356.7523 km so the Distance would be twice that. Unfortunately, since I don't know how fast (IE velocity or speed) that you intend on going, so at minimum time (as in the speed of light) you'd be going 299,792,458 m / s or 299,792.458 km/s so less then 1/20th of a second to travel that distance. Where as the maximum time you could take depending on multiple factors, carrying the two, about 2.8 billion plus or minus 3 billion years since by then there would be no earth to care about any ways. I know, rough calculations and such but that's life, and the life of the planet so to speak. :D

As for the other question no not possible with the technology we have now, It's too damn hot and I wouldn't want to mess with the core of the earth anyway since it well KEEPS THINGS ALIVE, because of the van alen belt. Yay for magnetic fields keeping away hazardous and deadly radiation.

Also, yes depending on how fast you accelerated there would be a time dilation due to the acceleration at near light speeds, and gravitational changes from going through the center of the freakin' Earth.

No time zone changes since neither the north nor the south pole have them, it would be impossible and impractical to define them near the poles any ways. I'm also assuming that you know that there are two different poles, the magnetic and rotational, and you are talking about the rotational pole. Mainly because it's easier to use that since it's mostly fixed.

Lastly, Yes living things that go through molten hot magma tend to not live that long. Usually seconds. so the faster you go the better. but going that fast has it's own detriments, like the pure physical resistance that I'm going to ignore for the sake of my own sanity, and the issue of extreme forces that would tear anything apart atom by atom or worse quark by quark. It wouldn't be pleasant I assure you. That would leave you with one option of using a FTL drive to punch through, but that would likely cause the earth to well break apart in what would be considered an ELE class disaster.

It's a good thing that we don't have one of those just laying around now isn't it. I do hope this answered your questions. It was fun not causing my brain to try to beat me half to death with a rusty wooden spoon.



tears Quick beat me with a wooden spoon...this is too much to absorb!!

Quote: Lastly, Yes living things that go through molten hot magma tend to not live that long.....which translates to, REALISTICALLY - YOU WILL NEVER GET THERE!! You would be in molten form!
rofl rofl

metalwing's photo
Mon 10/06/14 03:24 AM
Wooden spoons don't rust!frustrated

bigcrunchtheory's photo
Mon 10/13/14 01:07 PM
If you use a wormhole, assuming you have enough energy to keep it stable at a macroscopic scale, then the trip could be instantaneous.

Conrad_73's photo
Mon 10/13/14 01:37 PM

If you use a wormhole, assuming you have enough energy to keep it stable at a macroscopic scale, then the trip could be instantaneous.

.....and possibly instant Spaghetti-fication!

metalwing's photo
Mon 10/13/14 04:07 PM


If you use a wormhole, assuming you have enough energy to keep it stable at a macroscopic scale, then the trip could be instantaneous.

.....and possibly instant Spaghetti-fication!


Only if you pass near an Italian Wormhole!

Serverousprime's photo
Mon 10/27/14 09:20 PM

Wooden spoons don't rust!frustrated



That's the point. Also even thought they don't rust doesn't mean that they aren't covered in rust i.e. rusty. Now If I had said rusted wooden spoon that would make absolutely no sense what so ever.

Serverousprime's photo
Tue 10/28/14 06:23 PM

If you use a wormhole, assuming you have enough energy to keep it stable at a macroscopic scale, then the trip could be instantaneous.


So you want us to create a wormhole through a physical object the size of well the earth without blowing it up or blowing us up in the process?

By what we understand of physics, that's something we are incapable of doing at the moment. Too many things to consider, general rotation of the planet, orbit of the planet, moon, and the sun, electromagnetic forces, quantum forces, size of the hole, gravitational forces from the instantaneous bending of space (I assume we are making the wormhole instantly otherwise the bending of space would likely break something)... It is an interesting idea though. but it would be better to just make a wormhole around it instead of through.

no photo
Tue 10/28/14 06:49 PM

Philosopher8659's photo
Thu 10/30/14 04:42 AM
I have been developing a new branch of analog mathematics. One of the aims is to learn to say what you see, to learn principles of language.

By straight edge and compass construction, you can do your algebra. And while doing it, you learn about language, names.

People do not realize that they are proto-linguistic.

no photo
Thu 10/30/14 01:33 PM
I think the center of earth is like Prince Edward Island.
There's no toll-fee to enter but there's some devil there at a toll-gate to make sure you pay to leave.

Conrad_73's photo
Thu 10/30/14 01:49 PM

I think the center of earth is like Prince Edward Island.
There's no toll-fee to enter but there's some devil there at a toll-gate to make sure you pay to leave.


you will be encountering this Little Stinker!laugh


no photo
Fri 10/31/14 03:14 PM
Cool... They look like former pets I've had in the past, except this Little Stinker will probably make less mess. :heart:

Thank You, Corad_73!

Serverousprime's photo
Wed 11/05/14 01:23 PM

I have been developing a new branch of analog mathematics. One of the aims is to learn to say what you see, to learn principles of language.

By straight edge and compass construction, you can do your algebra. And while doing it, you learn about language, names.

People do not realize that they are proto-linguistic.


Interesting! There is a lot of things that you can do with the set of Construction numbers. Though I wonder how would you express transitive numbers like E, I or PI? Are you including them as arc relationships?

Maxisu's photo
Wed 11/05/14 01:45 PM


Actually, planes fly in inner space. It is the space between the Earth and outer space. But if you mean how far is it, then it is 12,430 miles between the poles in a straight line. You couldn't travel there since the inner core is about 9,800 �F.

I am not sure what you mean about flying unless you are speaking of tail winds. Or you are thinking of time zones, which do not affect flight time.


Actually, pilots (like me) fly planes in "airspace". I have only heard of inner space in other worldly terms.




rofl rofl rofl rofl

Another funny topic ! So we assume about inner space or what is meant by that ?
I just saw one definition related to geography and it says: inner space
n
1. (Physical Geography) the environment beneath the surface of the sea