Dark Matter

Nov 19, 2021
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Matter determines the shape of space. Space determines how matter should behave. I think I have the idea correct.
But what if we can modify this a little? What if there could be a pre-existing shape to space? What if the shape of space determines where matter can accumulate? Like a dip in the ground would make a pond. Could the dip shape exist without having attracted our common matter? Would we assume matter existed in that shape...Just a thought. And of course any 'dip shape' would have gravity (without common matter) .
 
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Nov 15, 2021
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Well, our scientists don't know the real size of the space, so how matter could determine the shape of the space?

Don't you agree that the first mission is to verify the size of the space?
A theory for a compact size universe can't fit into infinite size Universe.

With regards to dark matter:
Do we really see any dark matter?
Do we have any real evidence for the existence of dark matter?
 
Nov 19, 2021
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We know Dark Matter exists as it exhibits Gavity. So something exists producing Gravity but without evidence of normal matter as its cause. That is, There is gravity but no identifiable cause , so far discovered.
If there is gravity then space must be shaped, not flat.
Refer to the analogy of a weight on a suspended rubber sheet. The sheet is distorted downwards by the weight. Put a ball in it with a push and the ball orbits the centre of the depression. This is just a simplification in 3 dimensions of 4 dimensional spacetime to illustrate the meaning of "shaped spce".
With regard to the Universe as a whole there is no conclusive evidence for any proposed shape I believe.
 
Nov 15, 2021
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The dark matter is a direct outcome of misunderstanding.

Our scientists can't explain the spiral shape of the galaxy and they can't explain the requested gravity that holds the sun in its orbit.
They clearly observe the Bulge, Bar, spiral arms - but they can't explain how it really works.
So, instead of finding the correct explanation, they have invented this dark matter and the density wave that do not needed in our real Universe.
 
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Nov 19, 2021
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A bit harsh Dav but yes it seems the movement of stars on orbit in the Milky Way can only be explained by assuming a new gravity source of mega magnitude. In our experience gravity is caused by mass. Therefore it is assumed that there is some (loads of ) unidentified mass. The missing mass canot be identified and therefore is alloocated a name "dark matter" (dark mass).
My suggestion is to turn it on it's head and imagine that gravity is caused by the 4 dimensional shape of space rather than mass. That is all 'mass things' cause a shape in space which in it's turn causes gravity and also a 'shape in space' may exist indepenently of mass - and thereby cause gravity. Possibly nonsense but as yet not debunked.
 
Nov 15, 2021
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The key point is that there is no need for extra gravity.

The mass in the galaxy and the spiral structure of the arms are good enough to hold the sun in the Orion arm.
Our scientists don't have a basic clue how the spiral galaxy really works.
Let's look at the spiral arms.
At the based they are connected to the ring that is located at about 3KPC from the center.
At that stage the thickness of the arm is 3 KLY.
At our location which is about 8KPC from the center, the thickness of the arm is 1KLY.
At the edge of the arm (about 12-15 KPC) the thickness is 400 LY.
You can't explain that structure just by center gravity mass.

Please also be aware that there are exactly 512 star in a radius of 100Ly around us and 64 in a radius of 50 Ly.

Hence, the density of stars per 50LY sphere in our location is fixed - 64 stars.
That proves that the arm itself holds the stars by its gravity.
Hence, the arms act as propellers in a plan.
There must be some sort of symmetrical shape between the arms otherwise that structure would fail to work.

Therefore, there is no need for dark matter to explain the shape of spiral galaxy.
The gravity in the spiral arm is good enough to hold the stars in the arm.
However, if any star would dare to shift away from the arm it would be boosted away from the arm and the disc plane.
We call those poor stars Hypervelocity stars.


"Hypervelocity stars zoom through space at speeds exceeding 1 million mph (1.6 million km/h) — more than twice as fast as their "normal" cousins. "
 
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Nov 15, 2021
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Thanks

The density wave can't last for many rotation periods:


"Currently, the theoretical situation is such that quite diverse views co-exist and there is no consensus that a single mechanism is responsible for all of the observed spiral patterns in galaxies. While some experts insist that spiral patterns must last only a galactic rotation or two, other theorists argue that swing amplification can give rise to superposed modes of the system which can last for up to ten rotation periods".

How could it be that the Milky Way last for so long time?
Our scientists claim that it takes 240MY for the sun to set one rotation. In the last 6 BY it had been set about 25 rotation periods.
Hence, how the Milky Way could last for 25 rotation periods while the upper limit of the density wave is just 10 rotation periods.

It also can't explain the full structure of the Milky Way spiral galaxy.
1. Bulge - up to 1KPC
How the density wave could explain the bulge at that specific section?
Why around the SMBH each star orbits at different orbital plan and at different direction?
Why the spiral arms do not start directly from the SMBH?
If the Density wave is real how could it be that there is a bulge at the center?
2. Bar - 1KPC to 3KPC
How the density wave could explain the Bar at that specific section?
3. Ring at 3KPC
How the density wave could explain the ring at that specific section?
4. Spiral arms - 3KPC to 15KPC
Thickness - why at the base (3KPC) the thickness of the arm is 3,000 LY while at the edge (15KPC) it is only 400 LY. This is a contradiction to any real orbital system.
Density - how the density wave could explain the absolutely fixed density in the Orion arm near the solar system? In our location we have found that in each 50 LY sphere there is exactly 64 stars.
So, how could it be that the density wave, which acts as a random activity could set this specific density of stars in our location?
 

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