May 25th, 2009
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Re: The Fixed Earth
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Originally Posted by MahogonySnail
It has been proven that the earth revolves around the sun. Here's why:
1) Bessel in 1838 measured the parallax of nearby stars. This showed the earth was in different places relative to the star after a 6 month period. More measurements since confirmed the earth follows a closed path around the sun. The reason why this was not measured or observed until 1838, was that in the 17th centuary the movements were so small that they were not able to be measured or overlooked altogether.
2) The aberration of starlight was another proof of the heliocentric solar system.
3) Spaceflight has successfully reached its destinations (and arrived) based on heliocentric models of the solar system. Photographs taken from space have also shown the sun at the centre, not the earth.
4) The laws of gravity and planetary motion show that the orbit of the earth is around a common centre of mass which is near the centre of the sun, not the centre of the earth.
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As I said there has never been a physical scientific test that has proven the the earth is moving.
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Because this stuff written here is quackery.
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No the Bible is not quackery, Scripture tells us that the sun revolves around the earth, I do not argue with the word of God.
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Suggest you brush up on your Newtonian physics.
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Really, I would suggest that you do that.
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Yes g-forces are involved when mass accelerates, but you are not talking about acceleration there, 100,000 km per hour figure you quote is velocity which is the time integral of acceleration. You can travel at any velocity and not feel a thing if that velocity is constant.
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Oh, have you travelled in a circular motion at 100,000 km/hr? Did you ever go on the amusement park ride - 'The Graviton', it's really good for kids to get a concept of gravity in force! Or you could get a bucket and fill it half full with water - then swing it round and round in a circular horizontal motion, when you hit full speed keep the velocity constant, then make a mental note of what you observe, which will be the water remaining in the bucket forced against the bottom of the bucket.
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I've given the centripetal acceleration of the earth due to its orbit below, it's very small. Gravity between two objects depends upon the mass of those objects. Given that the sun is many times more mass than the earth,
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If the mass of the sun is so much heavier then the earth as you say, and it is gravity that if pulling the earth to the sun- then you reason that this is because the earth is lighter, well then how much lighter is a feather floating in the breeze? it is not attatched to the earth, if the sun is exerting gravity on the entire mass of the earth, which is obviously heavier then one small feather, and pulling the entire weight of the earth towards it yet that same sun is unable to pull the feather from the light breeze of the earth. Put away the highschool textbooks kid and use your God given brain.
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it is the earth which is pulled around the sun. If the sun was to revolve around the earth, the mass of the earth would have to be many times greater than the mass of the sun which we know is impossible. Suggest you study up on Newtonian physics, and note that the gravitational acceleration g experienced on earth is independent of velocity (so the 100,000 km/hr point is irrelevant):
http://www.ac.wwu.edu/~vawter/Physic...OfGravity.html
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It is you that does not understand the forces of Gravity. There is an electromagnetic field that God uses to stabilize the earth, so it does not move.
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