0 gravity

0 degrees celcius (last i checked anyhow) is impossible because there is always a source of heat reaching some way, would it not be viable then to also think that possibly there is always some source of gravity in some area?

 

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Gravity is everywhere.

 

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Well in labs scientists have achieved 0 calvin, a point at which all motion stops....and some scientists are worried that some parts of the universe are cooling too soon, that some are reaching near 0 calvin temperatures too quickly.

As for gravity being everywhere...well i really don't know

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No they haven't. It is probably impossible. Also, all motion does not stop at zero Kelvin. It's the coldest possible state for something, but there will always be some motion.

 

where all gravity balances out isn't exactly 0 gravity, but for all practical purposes its equal. But if you have any size at all, one side of you is going to be pulled in the opposite direction from the other. And if there is any space in an area that is too far from matter to have gotten gravity yet (since apparently gravity goes the speed of light).

"Also, all motion does not stop at zero Kelvin. It's the coldest possible state for something, but there will always be some motion."

0 kelvin is not the coldest possible state, no. It is the state at which there is no random particle movement - no heat. Like you said, its probably impossible. If it IS possible, then yes it is also the coldest state. But as everyone should know, 0 of something doesn't matter much because usually you can get the same effect at near 0 - like in near 0 gravity. Who needs full 0 g?

 

There is a spot between the earth and the moon (and other bodies sun etc.) where the gravity is zero. This spot moves around with the moon. There are many such spots in the solar system where apposing gravitation attraction combine to zero.

Also when falling in a vacuum you will experience zero gravity. The micro gravity in space ships is due to the vibration and motions of the ship and crew. You cant have a zero gravity experiments in a space ship because the human keeps on bumping into the bulkhead, drag due to the very thin atmosphere and the constant adjustments of gyros and retro rockets. Hence Micro gravity.

 

Correct

It IS theoretically impossible.

Wrong, it WOULD if you could get there....

Exactly why you can never reach it.

 

That is incorrect, for there are other objects a little farther away that have their own gravitational field (for example, the Sun). It doesn't matter how far away the object is, nor does it matter how large the object is, it will always have some gravitational pull. It can be a trillion light-years away, it just would take a very, very long time.

Conclusion: 0 gravity is nowhere in normal space.

 

False, if you were initialy at rest and have started falling, it's due to some force causing an acceleration. If you're falling and accelerating, it's cause of a force. It doesn't have anything to do with a vacuum.

The sum of the forces might equal zero, but gravity does not equal zero. If this spot travels around the earth with the moon, the sum of the forces is not zero because there is centripital acceleration.

 

Well that shut me up. Thank you for correcting my misconception

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You don’t understand how gravity is measured. There is no difference between gravity and acceleration. Inside a spaceship without being able to see outside a scientist could not pick the difference between the ship sitting on the earth or the space ship acceleration through space at 1G.

I don’t get it? if the sum of two forces equals zero then there’s nothing there. That’s what I have been taught. This spot of zero gravity moving around the earth is not affected by centripetal forces. It’s like a shadow.

 

0.28 Kelvin is about the lowest you can go.

 

How gravity is measured? Gravity is a force (an attraction) that causing an acceleration. There is a huge difference between gravity and acceleration. An object resting on the surface of another object is still subject to the gravitational attraction between the two, but it is not accelerating.

I too agree that a scientist could not visually distinguish between the ship in space and the ship on earth if he can't see out the window, I doubt anybody could.

If a sum adds to zero it does not mean that nothing is there. The sum 2+(-2)=0, yet there is stuff there besides nothing. If two forces acting on an object are of equal magnitude, but in the opposite direction, they sum to zero and the object does not accelerate in either direction (assuming no other forces, for simplicitys sake).

This spot of zero gravity, if it is traveling in a cirlce (yes, it is orbiting like you said), then it is subject to centripital acceleration, basic physics right there. But once again, there is not spot of zero gravity. The sum of the gravitation forces might equal zero, but the gravity will not be zero.

 

Your logic is flawed. Thus 2+(-2) = 0 = 3-3 which one is it. We can’t deduce an answer from 0.
The same goes for gravity. We don’t know what it is. The only way we have of measuring it can give us a ZERO. To imply that there still is gravity at that zero point is beyond science at the moment, as far as I know.

This zero gravity zone (point to be precise) is not a thing, it has no mass, it is only an artifact of the laws of nature. It could move faster then the speed of light. To think of this zone as a thing is wrong.

Its like a shadow…An artifact that has no mass, capable of appearing to move faster then light.

 

So far as I've been taught, gravity doesn't have a range, a point at which it stops. You feel the gravity of every star in the galaxy. The thing is that with distance, the power drops, to the point where it isn't strong enough to affect you. In orbit, it would be more accurate to describe the effect as free fall, rather that zero G.

 

Gravitational fields. Read up on them.

On the left side of the equation you know what two things are adding together. If it was 3+4=7, and you know where the 3 and the 4 came from, you can't just come out and say that the equation was 5+2, because you knew what the equation actually was.

Ok, assuming this thing actually exists, which I highly doubt it does, where do you get it travels faster than light? Didn't you say it was a point between two or more gravity producing objects? I don't think these objects are going faster than light.

I was stating the centripital acceleration thing because, well, it's not really a proven "thing" at all, so why not make up a lot of other crap about it too.

 

If two waveforms interfere perfectly canceling each other out. IS the room full of sound or not

If you say that there is still gravity there even though we can’t measure it how do we know if the universe is not between two gigantic gravity wells. We can never know.

This always confuses people.

All right Hypothetical universe.

I am standing inside a giant sphere with a circumference of 1 light year. I standing in the center shine a laser out to wards the inside of the sphere. When the light gets to the sphere there will appear to be a spot of light. If I then, still in the center of the sphere, turn 360 degrees with the laser still pointing outward. That spot of light will appear to move around the sphere in the time it took me to do my turn. You could say that the spot of light is moving faster then the speed of light. Yet nothing is moving it just our perception that makes us think its a thing (the spot of light).

The same applies in the zero gravity point. It is not a thing. It’s a concept, an artifact. It can be measured but is not a real thing.

 

aye i was gunna say, as long as there is any heat at all there is never 0 degrees celcius, or farenheight,

 

Firstly, its 0 degress KELVIN that is probably impossible, not farenheight or celsius. On cold winter days it can easily go below 0 celsius or farenheight. This is just to make sure thats clear, because i have seen a few posts stating that its impossible to reach 0 celsius, which is actually just the freezing temperature of water.

Sometimes i find that going back to the most basic laws of mechanics can be helpful when contemplating these kinds of questions. Specifically, Newton's law of gravitation. There can never be zero gravity, or anything close to it. When you clip your toe nail, its falling motion effects both the orbit of the Earth and Jupiter. However miniscule it may be, even the tiniest electron has a gravitational effect on one thousands of light years away. Even the most sensitive 'sensors' (for lack of a better word) would never detect such a small gravitational influence, but newton's law requires that it exist. (F=GM(1)M(2)/D^2)