You don't have any knowledge of basic physics do you Nony?

(May 8, 2013 at 8:39 am)Love Wrote:

(May 7, 2013 at 9:10 am)Chuck Wrote: Current thinking is particles are effected by gravity if they interact with the messenger particle of gravity, called gravitons, similar to how the other three elementary forces - the electromagnetic, the nuclear weak, and nuclear strong forces - excerts their effects through their respective messenger particles.

I think it is important to highlight the fact that the "graviton" has not been observed empirically; it only exists in mathematical form, and could ultimately prove to be untestable. Some theoretical physicists believe that adding the graviton, a hypothetical elementary particle, to the Standard Model of particle physics and certain quantum field theories would help particle physicists to make more sense of they have observed empirically with other elementary particles. In essence, the ultimate goal is to unify general relativity and quantum field theory.

And the Higgs Boson is what?

---

(May 8, 2013 at 10:23 am)KichigaiNeko Wrote: You don't have any knowledge of basic physics do you Nony?

What, pray tell, led to that remark?

Did someone tell you space is not curved in the GR sense?

(May 8, 2013 at 6:39 pm)A_Nony_Mouse Wrote: And the Higgs Boson is what?

It is not the graviton. It is the excited state of a field whose interaction with some elementary particles gives those particles their mass. Higgs boson itself has mass. Graviton, if it exists, ought to be massless.

---

(May 8, 2013 at 8:39 am)Love Wrote: I think it is important to highlight the fact that the "graviton" has not been observed empirically; it only exists in mathematical form, and could ultimately prove to be untestable.

The gravity wave experiment is designed to test for gravitons.

(May 8, 2013 at 7:38 pm)Chuck Wrote:

(May 8, 2013 at 6:39 pm)A_Nony_Mouse Wrote: And the Higgs Boson is what?

It is not the graviton. It is the excited state of a field whose interaction with some elementary particles gives those particles their mass. Higgs boson itself has mass. Graviton, if it exists, ought to be massless.

Is this graviton predicted in the standard model?

(May 7, 2013 at 12:30 am)Chuck Wrote:

(May 6, 2013 at 12:54 pm)Luminox Wrote: In other words, is there something that is not affected by the gravitational force, no matter how strong the latter is?

None that we know.

This is not surprising because our only really successful model for modeling and predicting elementary makeup of the universe - known as the standard model of particle physics - does not give a description of how gravity fit into the scheme of interaction between different constituents of the universe. As a result we don't have any theoretical foundation to say where we should even look,of we were to try to find something that is totally uneffected by gravity.

---

(May 7, 2013 at 12:20 am)Polaris Wrote: http://science.nasa.gov/astrophysics/foc...rk-energy/

http://www.universetoday.com/84934/antig...expansion/

http://www.dailygalaxy.com/my_weblog/201...time-.html

Did you even read any of these?

Dark energy menifest itself as a negative pressure intrinsic to space. By relativity Gravity interacts with pressure just as it interacts with any energy such as mass. It is only because of this that Einstein had anything to say about "cosmological constant" and why we can say that dark energy excert its effect as "negative gravity" and propels the acceleration in the expansion of the universe.

If it weren't for the fact dark energy interacts with gravity, we would have absolutely nothing to say about it.

That's like saying a feather affects the wind and is responsible for the wind because it is showing wind exists. You are mistaking the effect for the cause.

(May 8, 2013 at 8:34 pm)A_Nony_Mouse Wrote:

(May 8, 2013 at 7:38 pm)Chuck Wrote: It is not the graviton. It is the excited state of a field whose interaction with some elementary particles gives those particles their mass. Higgs boson itself has mass. Graviton, if it exists, ought to be massless.

Is this graviton predicted in the standard model?

No, it doesn't say anything about gravitons.

But beyond the stadard model, there has been a strong suspicion since Einstein that gravity at a deep level is symmetrical with the three forces covered by the standard model. So by analogy with those other three forces, gravity would be expected to also be carried by its own messenger particle, the graviton. Although standard model doesn't predict a graviton, particles fitting the necessary characteristics of gravitons doesn't conflict with the standard model.

So at this point existence of the graviton is a well educated guess, but not a strongly supported fact. The gravitational wave experiments planned can potentially verify the existence of gravitons.

---

(May 8, 2013 at 9:27 pm)Polaris Wrote: That's like saying a feather affects the wind and is responsible for the wind because it is showing wind exists.

No, it's not. It's like saying you can't change the flow of the air with a feather if the feather doesn't interact with the air. Dark energy won't come out as a residual terms in einstein's equations if it didn't interact with gravity.

(May 8, 2013 at 11:40 pm)Chuck Wrote:

(May 8, 2013 at 8:34 pm)A_Nony_Mouse Wrote: Is this graviton predicted in the standard model?

No, it doesn't say anything about gravitons.

But beyond the stadard model, there has been a strong suspicion since Einstein that gravity at a deep level is symmetrical with the three forces covered by the standard model. So by analogy with those other three forces, gravity would be expected to also be carried by its own messenger particle, the graviton. Although standard model doesn't predict a graviton, particles fitting the necessary characteristics of gravitons doesn't conflict with the standard model.

So at this point existence of the graviton is a well educated guess, but not a strongly supported fact. The gravitational wave experiments planned can potentially verify the existence of gravitons.

But the Higgs Boson does provide mass. And mass is the cause of GR bending space which is gravity. It would appear the standard model has been satisfied without the need for some "graviton" which has no place in the standard model. And that is the disappointing thing about it. No new physics either hinted at or needed.

Gravitational wave experiments are not related to any graviton. They are an attempt to detect the energy carried away by the interaction of massive object. I Boinc the project.

You obey your laws - I'll obey mine.

(May 9, 2013 at 2:29 am)Minimalist Wrote:


You obey your laws - I'll obey mine.

That's Katy Perry, you know?

I don't have a clue who that is.