Gravity

[Captainzen]

Hello

    I have read a few topics on gravitational theories. I must state my disagreement on the space warp theory to explain attraction, but I would like to pose a different question. 

   I agree fully on the theory of mass density being the measure of gravitational force. That said, gravity itself is still a mystery. I am talking about the wave that interacts with mass. Like magnetism for instance. We know what a magnetic wave is and how to create it. What efforts are being made to discover the  gravitational wave? 

[Janus]

We have already detected gravitational waves.  However, neither gravitational or magnetic attraction is mediated by waves.  A "magnetic wave", is  just one component of an electromagnetic wave, or in other words, light and radio waves.  Magnetism, as in the attraction and repulsion of magnets, is due to a field, not a wave.

[studiot]

2 hours ago, Captainzen said:

I agree fully on the theory of mass density being the measure of gravitational force.

Mass density ?

What theory would that be?

The average density of Earth is about four times as great as that of Jupiter, yet the gravity of Jupiter is nearly three times as great as that of Earth.

[swansont]

4 hours ago, Captainzen said:

   I agree fully on the theory of mass density being the measure of gravitational force. 

Newtonian gravity depends on mass and distance. You could express the mass in terms of a density, but it would also then depend on the size. 

[Strange]

4 hours ago, Captainzen said:

I agree fully on the theory of mass density being the measure of gravitational force. That said, gravity itself is still a mystery. I am talking about the wave that interacts with mass. Like magnetism for instance. We know what a magnetic wave is and how to create it. What efforts are being made to discover the  gravitational wave? 

I don't think we know what magnetism "is" any more than we know what gravity "is". In both cases we have theories that describe how they work. Those might also describe "reality" but we have no way of knowing.

But kudos for saying "gravitational wave" and not "gravity wave"!  

[J.C.MacSwell]

7 minutes ago, Strange said:

I don't think we know what magnetism "is" any more than we know what gravity "is". In both cases we have theories that describe how they work. Those might also describe "reality" but we have no way of knowing.

But kudos for saying "gravitational wave" and not "gravity wave"!  

At least Captainzen understands the gravitational of the situation...

...and I'll see myself out...

[TentPeg78]

Yes, I agree with you CaptainZen. Gravity is not a theory that I go along with, I am very sceptical especially about the proof that is said to 'beyond reproach'.

Is light distortion the only proof supposedly showing this theory to be true..? 

I don't believe a rock 'acquires' gravity by growing in size. Seems like nonsense to me.

[Janus]

4 minutes ago, TentPeg78 said:

Yes, I agree with you CaptainZen. Gravity is not a theory that I go along with, I am very sceptical especially about the proof that is said to 'beyond reproach'.

Is light distortion the only proof supposedly showing this theory to be true..? 

I don't believe a rock 'acquires' gravity by growing in size. Seems like nonsense to me.

I seems like nonsense because it is.  Objects do not "acquire" gravity, as they've always had gravity. The gravity of a single rock is just very, very, weak.  Join two rocks together, and their gravitational fields add together.   The more rocks added, the greater the sum of their fields. 

[exchemist]

1 hour ago, TentPeg78 said:

Yes, I agree with you CaptainZen. Gravity is not a theory that I go along with, I am very sceptical especially about the proof that is said to 'beyond reproach'.

Is light distortion the only proof supposedly showing this theory to be true..? 

I don't believe a rock 'acquires' gravity by growing in size. Seems like nonsense to me.

Which theory are you talking about? Newton’s, or Einstein’s?
 

Or both, perhaps, if you are a Flat Earther? 🤪

[swansont]

6 hours ago, TentPeg78 said:

I don't believe

Belief doesn’t enter into it. Do you have evidence that is in disagreement? Because all of it seems to support the model that gravity is proportional to mass

[Markus Hanke]

On 11/29/2024 at 5:44 PM, TentPeg78 said:

Gravity is not a theory that I go along with

 

On 11/29/2024 at 5:44 PM, TentPeg78 said:

Is light distortion the only proof supposedly showing this theory to be true..? 

No. You can yourself, at home, perform simple table-top experiments to investigate gravity, such as eg the Cavendish experiment (all required parts are readily available for purchase, or you can build your own if you’re handy with tools). You can vary the setup as you see fit - use different masses or materials; place the whole thing or parts of it in a Faraday cage; place it in a vacuum etc. 

[KJW]

On 3/31/2020 at 4:29 AM, Captainzen said:

I must state my disagreement on the space warp theory to explain attraction

"Space warp" doesn't explain gravitational attraction. What explains the gravitational attraction is the spacetime curvature implied by gravitational redshift. That is, it is about what happens to time, not space. It should be noted that spacetime curvature is a factually real physically measurable quantity, not merely an abstract theoretical notion.