Is the image that scientists tries to present about gravity wrong?
When scientists explain gravity like a ball sitting on a blanket and space forms a pit around it, shouldent that be incorrect. Isn't gravity all around earth and not just on a single plain? If this is so then the image that is generaly presented should be much more different.
Answers:
Absolutely. But you can't draw a picture of how it really is in 3D - go try it. The ball in the blanket is still the best analogy anyone has come up with, so far.
So: not "wrong", but "analogy". Can't get through science without analogies. They mustn't be taken literally, though.
Gravity is a myth the earth sucks.
Well, yes, gravity is all around the Earth rather than being confined to a plane. The ball sitting on the blanket is a useful way of visualizing mass as distorting and bending spacetime- it is difficult to visualize this bending in three dimensions. This image is used for its illustrative potential rather than technicaly correctness.
I understand what you mean - ever noticed how a 3D Bart Simpson just doesn't look right - because he has only 9 spikes on his 2d head - it just doesn't translate to 3D.
As a quantitative explanation of gravity it is very lacking. As a qualitative explanation it gives a very good 'picture' of what is happening. When studying physics it is important to have a good 'picture' of what is going on. Even if it is not completely correct, it still allows you to relate it to something that is easier to understand. So it is not wrong, but it is not right either. It is simply an easily understood concept that gives most people a good idea of what gravity does without requiring a much greater understanding.
They're trying to illustrate gravity as deformation in spacetime. That will be really difficult to do in 3D. I don't know if that's possible. Those pictures are still best way to explain general public about gravity as Einstein sees it. Which isn't easy thing to understand mathematically. They're not saying that is representation of gravity, but illustrating one aspect of gravity using simplified image.
The bed is just a 2 dimensional representation of the space time continuum, whic is of course a 3 dimentional thing.
When an architect designs a house, he draws it on a flat piece of paper as a 2 dimensional representation, even though the finished house wil be a 3 dimensional object.
It's the exact same thing.
It's just the most efficient way to demonstrate the phenomenon visibly.
Are you saying Einstein's General Relativity is wrong? Because unless you're a genius who's even smarter than Einstein, no scientist would even listen to you. General Relativity and gravity being the curvature of space is very widely accepted throughout the scientific community, and there is evidence backing it up.
The field generated by gravity resembles what is represented by the blanket analogy.
Gravity acts on the earth from all directions but that has nothing to do with the actual field it generates. And remember these diagrams are used to help you visualize it; it does not mean that is exactly what is happening. Remember every object generates a gravitational field that acts on other objects, so it's not going to be a nice smooth path like in the pictures because many gravitational fields are acting in one area.
This is called an analogy. You will do well to remember this concept.
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Answers:
Absolutely. But you can't draw a picture of how it really is in 3D - go try it. The ball in the blanket is still the best analogy anyone has come up with, so far.
So: not "wrong", but "analogy". Can't get through science without analogies. They mustn't be taken literally, though.
Gravity is a myth the earth sucks.
Well, yes, gravity is all around the Earth rather than being confined to a plane. The ball sitting on the blanket is a useful way of visualizing mass as distorting and bending spacetime- it is difficult to visualize this bending in three dimensions. This image is used for its illustrative potential rather than technicaly correctness.
I understand what you mean - ever noticed how a 3D Bart Simpson just doesn't look right - because he has only 9 spikes on his 2d head - it just doesn't translate to 3D.
As a quantitative explanation of gravity it is very lacking. As a qualitative explanation it gives a very good 'picture' of what is happening. When studying physics it is important to have a good 'picture' of what is going on. Even if it is not completely correct, it still allows you to relate it to something that is easier to understand. So it is not wrong, but it is not right either. It is simply an easily understood concept that gives most people a good idea of what gravity does without requiring a much greater understanding.
They're trying to illustrate gravity as deformation in spacetime. That will be really difficult to do in 3D. I don't know if that's possible. Those pictures are still best way to explain general public about gravity as Einstein sees it. Which isn't easy thing to understand mathematically. They're not saying that is representation of gravity, but illustrating one aspect of gravity using simplified image.
The bed is just a 2 dimensional representation of the space time continuum, whic is of course a 3 dimentional thing.
When an architect designs a house, he draws it on a flat piece of paper as a 2 dimensional representation, even though the finished house wil be a 3 dimensional object.
It's the exact same thing.
It's just the most efficient way to demonstrate the phenomenon visibly.
Are you saying Einstein's General Relativity is wrong? Because unless you're a genius who's even smarter than Einstein, no scientist would even listen to you. General Relativity and gravity being the curvature of space is very widely accepted throughout the scientific community, and there is evidence backing it up.
The field generated by gravity resembles what is represented by the blanket analogy.
Gravity acts on the earth from all directions but that has nothing to do with the actual field it generates. And remember these diagrams are used to help you visualize it; it does not mean that is exactly what is happening. Remember every object generates a gravitational field that acts on other objects, so it's not going to be a nice smooth path like in the pictures because many gravitational fields are acting in one area.
This is called an analogy. You will do well to remember this concept.
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