Dark matter (hijack from EPD model of dark matter)

[Jeff Mitchell]

All matter is dark matter.  If gravity warps space (seems to have been proven back in 1917) then logically all matter is indeed dark matter (yes, even you) depending only on your position in space.  This can be revealed by watching numerous videos where they show weights being laid on spandex and throwing marbles around to show how gravity warps space.  It is watch the pretty marbles go until you put names on the objects.  If there are two weights name one of them Andromeda and the other Milky Way, with a little electron on the back we will call earth.  The little marbles call them: photons, x-rays, gamma rays, or any other electromagnetic wave.  One can see that the vast majority don't hit earth, and there is your dark matter.  And in those distant galaxies where are electromagnetic waves don't go we are dark matter.  Pretty simple huh.

[swansont]

If we can detect it electromagnetically, it is not dark. It doesn't matter that there are photons you don't collect. They don't account for the effects that lead us to conclude that dark matter exists.

[beecee]

2 hours ago, Jeff Mitchell said:

All matter is dark matter.  If gravity warps space (seems to have been proven back in 1917) then logically all matter is indeed dark matter (yes, even you) depending only on your position in space.  This can be revealed by watching numerous videos where they show weights being laid on spandex and throwing marbles around to show how gravity warps space.  It is watch the pretty marbles go until you put names on the objects.  If there are two weights name one of them Andromeda and the other Milky Way, with a little electron on the back we will call earth.  The little marbles call them: photons, x-rays, gamma rays, or any other electromagnetic wave.  One can see that the vast majority don't hit earth, and there is your dark matter.  And in those distant galaxies where are electromagnetic waves don't go we are dark matter.  Pretty simple huh.

Simple but highly inaccurate. The definition of DM  is generally  thought to be a form of non baryonic matter, that interacts only gravitationally with baryonic matter and spacetime and does not reflect,  absorb, or emit light, which sadly  leaves M31, the MW and you and me out in the cold!

Edited February 27, 2019 by beecee

[Jeff Mitchell]

1 hour ago, beecee said:

Simple but highly inaccurate. The definition of DM  is generally  thought to be a form of non baryonic matter, that interacts only gravitationally with baryonic matter and spacetime and does not reflect,  absorb, or emit light, which sadly  leaves M31, the MW and you and me out in the cold!

 

1 hour ago, beecee said:

Simple but highly inaccurate. The definition of DM  is generally  thought to be a form of non baryonic matter, that interacts only gravitationally with baryonic matter and spacetime and does not reflect,  absorb, or emit light, which sadly  leaves M31, the MW and you and me out in the cold!

There is no difference in non baryonic matter and matter you can not detect, and if space warps time there is matter we can not detect.

[Strange]

7 minutes ago, Jeff Mitchell said:

There is no difference in non baryonic matter and matter you can not detect, and if space warps time there is matter we can not detect.

There are differences.

For example, we know how much dark matter there is and how it is distributed, and we know that it would not be distributed like that if it interacted electromagnetically.

We also know that there is enough that it would be detectable if it were visible.

So we know it is not baryonic matter.

[beecee]

8 hours ago, Jeff Mitchell said:

 

There is no difference in non baryonic matter and matter you can not detect, and if space warps time there is matter we can not detect.

Check out the Bullet Cluster anomaly......

I would also suggest that if DM was normal baryonic matter, we would have identified it by now, The facts that after 30 or 40 years of looking and still havn't it, confirms non baryonic DM. https://www.thoughtco.com/cold-dark-matter-3072275

[swansont]

10 hours ago, Jeff Mitchell said:

There is no difference in non baryonic matter and matter you can not detect, and if space warps time there is matter we can not detect.

Space does not warp time.

Spacetime is warped by mass (energy), and we perceive this as gravity.

[beecee]

7 hours ago, swansont said:

Space does not warp time.

Spacetime is warped by mass (energy), and we perceive this as gravity.

How I missed that oh so obvious faux pas, I do not know! 

Edited February 28, 2019 by beecee