 
Support Wrong Planet Awareness!
| View previous topic :: View next topic |
| Author |
Message |
Fuzzy
Ack! Thbbbt!
Joined: Mar 31, 2006
Posts: 3689
Location: Alberta Canada
|
 Posted: Wed Jun 24, 2009 10:19 pm Post subject: |
 |
|
| Tollorin wrote: | | lau wrote: | The gravitational force on any and every object within a spherically symmetric shell of matter is zero.
It makes no difference what the mass or size of the shell is.
If it were a sphere of neutronium, a light year thick, with a central hole big enough to contain the solar system, its gravitational effect on all objects anywhere within the shell would be zero. |
Such a huge object will basicaly be a black hole.
Imagine that... people continuing their everyday life in the center of the biggest and most massive black hole of the universe.
Kinda cool...  |
Maybe thats what the universe is!
_________________
davidred wrote...
I installed Ubuntu once and it completely destroyed my paying relationship with Microsoft.
"careful observation of reality is a holy book unto itself" - techstepgenr8tion |
|
| Back to top |
|
Michjo
Phoenix
Joined: Mar 05, 2009
Age: 25
Posts: 1020
Location: Oxford, UK
|
| Posted: Wed Jun 24, 2009 10:31 pm Post subject: |
|
|
| Surely the fact that humans are not perfect sphere's means that no matter where you place someone, they will always feel gravity in such a situation? |
|
| Back to top |
|
azulene
Blue Jay
Joined: Jan 01, 2009
Age: 32
Posts: 85
|
| Posted: Tue Aug 11, 2009 11:54 am Post subject: |
|
|
| Fuzzy wrote: | | Tollorin wrote: | | lau wrote: | The gravitational force on any and every object within a spherically symmetric shell of matter is zero.
It makes no difference what the mass or size of the shell is.
If it were a sphere of neutronium, a light year thick, with a central hole big enough to contain the solar system, its gravitational effect on all objects anywhere within the shell would be zero. |
Such a huge object will basicaly be a black hole.
Imagine that... people continuing their everyday life in the center of the biggest and most massive black hole of the universe.
Kinda cool... |
Maybe thats what the universe is! |
Hey I was going to say that!!
_________________
If you knew everything you didn't know, then you would know everything. |
|
| Back to top |
|
ruveyn
Phoenix
Joined: Sep 22, 2008
Age: 73
Posts: 4794
Location: New Jersey
|
| Posted: Tue Aug 11, 2009 6:54 pm Post subject: |
|
|
Long befoe they got there the interior heat of the planet would roast them.
ruveyn |
|
| Back to top |
|
Aoi
Phoenix
Joined: Jul 17, 2009
Posts: 606
|
| Posted: Tue Aug 11, 2009 8:08 pm Post subject: |
|
|
One little comment to add to this discussion.
Outer space is not a uniform medium. The effect of gravity in outer space depends on the presence of massive objects. Astronauts on the space shuttle or ISS are still under the effect of gravity, and the effect of gravity extends infinitely in all directions from its mass source (though in practice becomes so weak as to be irrelevant).
Also, outer space is filled with all manner of EM radiation, and depending on the distance to the nearest star, may be very cold (3 degrees K) or very hot (1000s K or more). |
|
| Back to top |
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
