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Why do physicists continue to pursue answers to sigma when if you use Eeinstiens theories and equations rather than the outdated Newtonian gravitational equations, there is no need for Dark Matter ot explain sigma at all.

2007-10-27 06:00:32 · 4 answers · asked by DannyB 2 in Science & Mathematics Physics

I am not speaking about dark energy.

I am specifically talking about the so called missing mass in our galaxy Dr. R.

My contention is that there is no missing mass. Merely an error in the interpretation of the data. Most need a missing mysterious mass in our galaxy that would explain sigma, which is the orbital speeds of the stars in a galaxy. As you move away from the galactic center the speeds drop until a certain distance where the curve of the plot distance vs speed plateaus.

Before you pontificate read the question.

When you use the proper equations you dont have to make up all that so called missing mass (Dark Matter)

Dark Energy is another animal all together.

2007-10-27 09:42:40 · update #1

My point is this.
This is my point.

Is there Dark Matter? Or is it more likely that in 1000 years we will have updated physics from v1 Newton, v2 General Relativity to a unified theory that I am sure will make Dark Matter a footnote.

It is hilarious that Physicists have to make up ghosts to explain their shortcomings, and sad that all this grant money is spent defending it.
To preach the good word, when we don't even have a unified theory in physics is rediculous.

Every dollar spent trying to prove dark matter and dark energy and every other fudge factor that keeps us beholden to our current theory of the universe is wasted.

That grant money needs to go to Theoretical Physicists and mathematical geniuses interested in replacing General Relativity as the be all and end all, and the building of the next generation particle accelerators.

2007-10-27 10:15:43 · update #2

4 answers

You are confused (surprise!). Dark *energy* is consistent with Einstein's equations, if you blow the dust off the cosmological constant). Now, this is very interesting in itself, but already recognized widely (no Nobel for you). Unfortunately, this constant is embarrassingly phenomenological. That means, like the charge on the electron and the speed of light, one must measure it to know its value. One can always come up with a theory with myriad free parameters set by past observations in order to "explain" everything already seen. Copernicus excelled at this (hence the expression "wheels within wheels"). What one would prefer is to come up with an explanation that unifies such observations by explaining them in terms of very few (or no) free parameters, and predicts new observations which can then be looked for to vailidate the theory. That's called the scientific method.

2007-10-27 06:45:40 · answer #1 · answered by Dr. R 7 · 0 1

There can be no doubt that dark matter exists, the universe is littered with black holes and the dark, non radiating remains of white dwarf stars that have cooled into cinders. Newton's equations are not outdated, they hold true for objects like these, they all have mass, therefore they have gravitational fields. Science estimates that up to 90% of the mass in the universe consists of this dark matter, but they are puzzled as to why it has not slowed the expansionof the universe.

2007-10-27 13:25:05 · answer #2 · answered by johnandeileen2000 7 · 0 1

Dark matter does exist, but in very little amounts it is made by speeding up particles so fast that they seem to stop, I am not sure about the rest but it does exist, and 1 oz of Matter + 1 oz of Dark Matter= Enough force to perpell a space shuttle at almost the speed of light, why not use all the dark matter for that? Kinks like:
-Inursha killing everone aboard
-And the fact that less then a bilionth of a gram of Dark Matter has been produced on Earth!

Also Dark matter could save energy if we find a way to produce a lot of it, and we could send Areonots in deep space and back in only a few seconds!

2007-10-27 13:14:51 · answer #3 · answered by shacka t 2 · 0 2

I didnt know that dark matter used newtonian equations... it seems interesting do you have a source? Thanks in advance!

2007-10-27 13:09:23 · answer #4 · answered by Anonymous · 0 0

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