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2007-08-17 07:27:51 · 7 answers · asked by HINESKECHUP 1 in Science & Mathematics Physics

7 answers

you could think of space as bed spread and theres a heavy object in the middle say big rock on the bed spread pulled tight from the corner in air and rock represting sun

now think what the image would be like......wouldn't be liike a dense in the bed spread or space in reality, b/c of amount of matter determies the curvature of space and curvature of space determines amount of gravity

the more matter more curve, the more the curve the more gravity

after tht heavy object in the middle image should look like this




http://www.geocities.com/Omegaman_UK/relativity/REL7.gif

this an example with roc in the middle
http://www.physics.umd.edu/lecdem/services/demos/demosp1/p1-11.gif

dont worry about other things like eqrth or star in this pic, just look at the sun or heavy rock in the bedspread would look like this right

now this is what earth is like rolling a marble on the bed spread which will go round and round around tht rock and as rolling it will come at the stop at the rock like a spiral

same way earth is revolving around the sun like a marble aournd the rock then it will come to stop colliding with sun, or getting sucked in maybe

this image shows how earth is like to sun in space or marble to a rock when rolling
http://www.aip.org/dbis/stories/2005/images/14396-1.jpg

this is earth at the edge of the curve it will roll around as it does isnt it getting closer and closer


best answer?

2007-08-17 10:03:12 · answer #1 · answered by Nishant P 4 · 0 0

As has been said, the earth's orbit is slightly off from being a perfect circle, and it's closer in the northern-hemisphere winter than in the northern-hemisphere summer.

There are some other effects, though, in the long term. The sun rotates, and the tides transfer an miniscule fraction of its angular momentum to all of the planets every time it goes around. Each planet's gravity affects every other planet's orbit. I think the net effect of those is that the earth is getting farther away from the sun over the course of millions of years.

2007-08-17 08:26:56 · answer #2 · answered by dsw_s 4 · 0 0

nicely, in some billion years, while the solar expands right into a pink super famous person, we are able to flow with such technologies to bypass the Earth, so as that we don't boil away. To get a molten planetary center, the planet might desire to have heavy and radioactive metals in this is center. Earth has those, so we've a molten center, and a magnetic field, this is a results of having a molten steel center. subsequent, if Mars have been in a specified to orbit to Earth, the two it may might desire to be in a co-orbit with the Earth, because of the fact the Moon is, or it may be in a various orbit around the solar, which might recommend that this is 3 hundred and sixty 5 days could be diverse from Earth's, meaning that on some days a 300 and sixty 5 days, it may be quite on the factor human beings, and a brilliant style of the time, it can be a various long away removed from us. in case you elect to bypass water to Mars, use comets. they are regularly ice, and could be an prolonged way greater uncomplicated to bypass.

2016-12-13 10:36:09 · answer #3 · answered by mensch 4 · 0 0

The Earth orbits the Sun relative to its barry center.It performs an eliptical orbit and oscillate with in that orbit.
It goes up the gravity ladder when its closere to the sun and goes down the ladder when it moves away from the Sun.
That means the Earth maintains its Gravity energy equilibrium as its change in potential energy balances the change in Kinetic energy.

2007-08-17 08:28:33 · answer #4 · answered by goring 6 · 0 0

If you mean it is getting closer as in it is collapsing into the sun, that would be because everything eventually will be pulled by gravitational force towards and into the sun. It's the same way that the Milky Way and the Andromeda galaxies are hurtling toward one another. The gravitational pull due to mass pulls them toward each other. The sun's mass is many times more any of the planets, which is why they stay in its orbit. "Eventually" is a relative term of billions or trillions of years. Any number of other things could happen before that.

2007-08-17 08:19:10 · answer #5 · answered by dmc 3 · 0 1

As hot as its been, it sure seems like the Earth is closer to the sun.

In truth, the Earth revolves around the sun in what is almost a perfect circle. Because the orbit is slightly oval, sometimes we are a little closer to the sun, and sometimes a little farther, but the difference is small.

2007-08-17 07:36:31 · answer #6 · answered by zim_8 4 · 1 2

The gravity is pulling us in closer like when you pull the plug in you bath tub and things go around and around until they get sucked in

2007-08-17 09:26:03 · answer #7 · answered by Anonymous · 0 0

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