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How it would feel at the Earth's core. Like outer space?

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azulene
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11 Aug 2009, 10:54 am

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.8O

Kinda cool... :lol:


Maybe thats what the universe is!


Hey I was going to say that!!


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ruveyn
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11 Aug 2009, 5:54 pm

Long befoe they got there the interior heat of the planet would roast them.

ruveyn



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11 Aug 2009, 7:08 pm

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).