For the ones that use brains, why does Mass create Gravity?

[Robert W]

But does Mass create Gravity and if not, what creates gravity? Listen carefully, for if you don't want a good lecture, pass this by.
This lecture will blow your mind. You will hear things you will deny or marvel at. When you measure time, does it move at the same rate all the time everywhere?

I advise all that watch it, watch it more times so you get all the points. This is complex and involves Newton and Einstein. It is a ride. I enjoyed it and hope you also enjoy the ride.

 

[Rambunctious]

Anything with mass pulls.... The more mass something has... the stronger its gravitational pull....
So yes Mass creates gravity....

 

[Chuz Life]

But does Mass create Gravity and if not, what creates gravity? Listen carefully, for if you don't want a good lecture, pass this by.
This lecture will blow your mind. You will hear things you will deny or marvel at. When you measure time, does it move at the same rate all the time everywhere?

I advise all that watch it, watch it more times so you get all the points. This is complex and involves Newton and Einstein. It is a ride. I enjoyed it and hope you also enjoy the ride.

It's an interesting video and I've watched it several times and I think I have shared it here on USMB before.

What it doesn't explain is why a greater mass has a greater pull.

Call it time curvature or gravity or anything else, it doesn't explain why the earth has a stronger force (pull?) than the moon does.

My theory that it is cumulative.

Every atom has a miniscule amount of this phenomenon.

The more atoms, the greater mass, the more accumulated pull.

 

[Votto]

There is no "pull" of gravity.

Gravity is simply warping the matrix of empty space



So, the question is, how do you warp the matrix of empty space, to which I have zero answers.

 

[luiza]

For the ones that use brains, why does Mass create Gravity?​

So , it's a bit like telepathy I guess .
You squeeze your brain hard with thoughts and somehow Gravity comes out of your arse .
Makes sense .

Yours is an interesting idea but I have examined my children's bottoms when they are straining and can find no trace of something which might be Gravity .
Lots of other traces of various foods .
But no Gravity .
Did you actually mean Gravy and not Gravity?

 

[toobfreak]

But does Mass create Gravity and if not, what creates gravity?

Without listening to another protracted video designed for laymen, let me just say that Mass does not create gravity, that is just how it appears to us.

Gravity is a field, not a force. It is the curvature of that field which causes the effect we call gravity.

Mass is just another name for inertia, the tendency of a body to remain in its present state of motion and/or direction.

IMO, it is not the mass of an object at question here but the associated dark matter. If Gravity is anything, it is really the field dark matter impinges in its effect on local spacetime. Dark matter effects spacetime by curving it and gravity is just the measure of that curve.

Therefore, one might really say that dark matter created spacetime.

 

[Robert W]

Without listening to another protracted video designed for laymen, let me just say that Mass does not create gravity, that is just how it appears to us.

Gravity is a field, not a force. It is the curvature of that field which causes the effect we call gravity.

Mass is just another name for inertia, the tendency of a body to remain in its present state of motion and/or direction.

IMO, it is not the mass of an object at question here but the associated dark matter. If Gravity is anything, it is really the field dark matter impinges in its effect on local spacetime. Dark matter effects spacetime by curving it and gravity is just the measure of that curve.

Therefore, one might really say that dark matter created spacetime.

Why read what you said when you admitted you did not watch the video?

 

[Robert W]

There is no "pull" of gravity.

Gravity is simply warping the matrix of empty space



So, the question is, how do you warp the matrix of empty space, to which I have zero answers.

Newton created laws and even he said he did not understand the laws but they were correct.
The video goes into detail on things such as the moon and Earth apparently have a force that creates tides and has the effect of pinning us to Earth though we only feel our weight. So much in the video to discuss.

 

[Robert W]

It's an interesting video and I've watched it several times and I think I have shared it here on USMB before.

What it doesn't explain is why a greater mass has a greater pull.

Call it time curvature or gravity or anything else, it doesn't explain why the earth has a stronger force (pull?) than the moon does.

My theory that it is cumulative.

Every atom has a miniscule amount of this phenomenon.

The more atoms, the greater mass, the more accumulated pull.

Gravity is a major mystery.

 

[toobfreak]

Why read what you said when you admitted you did not watch the video?

Because I've seen the video before?
Because I've spent 40 years studying quantum theory?
Because I came within an inch of being an astronomer and have taught astronomy and have a degree in physics?

But hey, by all means, don't read what I wrote just because I didn't watch Feynman's simplistic old video designed to help laymen understand reality.

After all, he even begins the video by stating that all of our accepted ideas on mass and gravity are all wrong.

 

[Robert W]

Anything with mass pulls.... The more mass something has... the stronger its gravitational pull....
So yes Mass creates gravity....

How does it work? What in mass makes it work as you tell us? Is it a magnet of some sort?

Another question is we should realize that Earth follows the Sun at an alarming speed. Why are we able to stick to Earth since it moves so fast? Feathers stick to Earth as easily as we do.

 

[gtopa1]

But does Mass create Gravity and if not, what creates gravity? Listen carefully, for if you don't want a good lecture, pass this by.
This lecture will blow your mind. You will hear things you will deny or marvel at. When you measure time, does it move at the same rate all the time everywhere?

I advise all that watch it, watch it more times so you get all the points. This is complex and involves Newton and Einstein. It is a ride. I enjoyed it and hope you also enjoy the ride.

We're still wondering (hypothesising) last I heard. Applying Einsteinian physics to building a house or even launching a spaceship is not needed; Newton works just fine. But when looking at quantum mechanics re subatomic particles etc you need Einstein. This has been known since I was at school....1960s.

We know the EFFECT of gravity but not exactly what it is.

Greg

 

[toobfreak]

Newton created laws and even he said he did not understand the laws but they were correct.

Probably better to say that physical laws are discovered, not created. Theories are created, but universal laws are rules underlying reality that were always there that we occasionally trip across.

 

[Robert W]

Because I've seen the video before?
Because I've spent 40 years studying quantum theory?
Because I came within an inch of being an astronomer and have taught astronomy and have a degree in physics?

But hey, by all means, don't read what I wrote just because I didn't watch Feynman's simplistic old video designed to help laymen understand reality.

After all, he even begins the video by stating that all of our accepted ideas on mass and gravity are all wrong.

I read all of your comments. This reply above at least tells us much more. Yes, he does say that. Do not think I was trying to insult you. When you said my video was worthless, did you expect me to not reply?

 

[Chuz Life]

There is no "pull" of gravity.

Gravity is simply warping the matrix of empty space



So, the question is, how do you warp the matrix of empty space, to which I have zero answers.

If you listen closely to the video, there is a pull or attraction of one mass to another.

Even the video says it's there, but it is not yet understood.

If you had two enormous masses in space, significantly separated, they would just be there doing their time warping thing and having no effect on the other giant masses, which are too far away. . .

But bring them closer, and they will immediately start pulling on one another.

Just as their pull (gravity) was warping the time around them, when they were each alone.

Let's imagine two huge planets, chained to an immovable point with a pulling force meter (1 & 2) to measure the force of the two masses pulling on each other.

In my view/ understanding, the force "pull" measured on the meters (1&2) will read the same. Mainly because, since both are restrained, their resistances would be cancelled out.

But that pull/ force between them will remain constant because neither mass can move.

"Time," while they are in that physical state, doesn't just stop though. . .

This is why I think the force is something other than simply "time."

 

[Robert W]

If you listen closely to the video, there is a pull or attraction of one mass to another.

Even the video says it's there, but it is not yet understood.

If you had two enormous masses in space, significantly separated, they would just be there doing their time warping thing and having no effect on the other giant masses, which are too far away. . .

But bring them closer, and they will immediately start pulling on one another.

Just as their pull (gravity) was warping the time around them, when they were each alone.

I have not read any reply to me or others talking about what the video said, that it is not mass, but time we observe. Does that make sense?

 

[toobfreak]

When you said my video was worthless, did you expect me to not reply?

When did I ever say it was worthless? I said it was protracted. What I should have pointed out is that the same video was posted here several weeks back or a few months ago in another thread.

While you cogitate the question of mass > gravity, consider that there are no dimensions in space, instead, try thinking of space as a tri-coordinated matrix in time.

Put another way, our three dimensions are really travels in time not space, making space really a function of and measure of time.

 

[Robert W]

When did I ever say it was worthless? I said it was protracted. What I should have pointed out is that the same video was posted here several weeks back or a few months ago in another thread.

While you cogitate the question of mass > gravity, consider that there are no dimensions in space, instead, try thinking of space as a tri-coordinated matrix in time.

Put another way, our three dimensions are really travels in time not space, making space really a function of and measure of time.

That as I understood the video is what he stated. Even that to me makes no sense. We have to define time. And as far as I am aware, it is our version of movement through space for a measured time. A circular definition in other words.

 

[toobfreak]

We have to define time. And as far as I am aware, it is our version of movement through space for a measured time.

That is a more sticky widget than I probably want to get into on a chummy internet forum. Maybe we can say that there is no movement in space, that space is instead a fixed volume of time, and that all our moments in time are recorded as a set of spatial coordinates each marking one point along our timeline?

Hidden within that text is the reason how spaceships travel from other stars and why UFOs appear to change speed and direction instantly, disappearing in one place only to reappear elsewhere.

Spacetime is to mankind what the fishbowl is to the goldfish; everything looks curved to the fish looking out through the bowl yet in reality, all lines are really straight.

 

[Chuz Life]

I have not read any reply to me or others talking about what the video said, that it is not mass, but time we observe. Does that make sense?

See my edit above.