Re: The phrase 'dark matter'
- From: "tomgee" <tyropress@xxxxxxxxx>
- Date: 24 Jul 2006 23:15:23 -0700
The TimeLord wrote:
On Thu, 20 Jul 2006 22:46:12 -0700, "tomgee" <tyropress@xxxxxxxxx> wroteThen why ask for the evidence if you already knew what it was?
in <1153460772.485123.73670@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>:
The TimeLord wrote:
On Mon, 17 Jul 2006 14:11:25 -0700, "tomgee" <tyropress@xxxxxxxxx> wroteBecause we can see through it, just like we see through light, apparently.
in <1153170685.919021.109060@xxxxxxxxxxxxxxxxxxxxxxxxxxx>:
Randy Poe wrote:[...]
socratus wrote:
Yes, they are. DM is not dark at all, so that term used to describe
it or even define it is clearly a misnomer no matter how hard you wish
upon a star that it isn't. In fact, DM can be more accurately
described as invisible matter because we can see right through it,
obviously.
Through it? How do you know? Generally stars don't resolve below the
Raleigh limit anyway in a telescope. So how would you be able to tell
that dark matter is transparent?
What's the evidence that we can see through it?
We are talking about two states: visible and invisible. Those
researching DM state today state that it is invisible and can only be
detected by its observed effects.
Which is what I said.
Right. Note that my "through" is in quotes, meaning it
We can see "through" light, as explained in my model, because we only see
I'm not sure that seeing through light even makes any
sense.
appears that way. I have explained that we really do
not see through it, since our eyes do not project any-
thing outwardly.
I already responded to that question from you in this
Nevertheless, I don't know your model. Have you
submitted a paper or have a URL you can share?
same thread. I have no URL but I can email you the
free current version, which I am revising at this time,
under your agreement that you will respond to it in
these physics ngs, just as you are doing now. Email
me your email address at typropress@xxxxxxxxxx
I'm sure that is one explanation for it, yes, but that is not
It appears to us that space is empty between objects, so if DM exists,
The reason that space appears empty is because it is
there are so few small particles (1 per cubic meter approx.)
and even fewer larger objects in the space between galaxies.
the only explanation.
Haven't you answered your own question, then?
However, we can tell from the behavior of light if there are
unseen objects/particles between us and stars/galaxies. An
example of this is the North American Nebula in Cygnus or
the Horsehead Nebula in Orion. The starlight behind the dust
is dimmed and reddened by the dust. In some dust clouds there
even seems to be evidence of polarization of the starlight
that comes through it.
we do not "see" it the same way we do not "see" light. They are two
different things that appear to be transparent to our eyes, but for
different reasons. Light is energy as we know it, but DM is not, since
it seems to exist even where there is no light. Recent reports show
that it is everywhere objects are not.
Which reports would that be? If there are no objects to reveal
the dark matter, then how do we know it's there? Remember that
the fundamental definition of dark matter is that it is not
directly seen, but that it exerts a force on another *object*.
In naming invisible matter "dark matter".Yes, it is. Sorry.
Physics is not all that precise in term-usage as you once imagined,
eh?
That statement is moot.
Name something where physics is imprecise.
I agree it may sound that way, but I don't think it is. What IYes, I agree that it would be evidenced in the spectra, but how do we
We assume it has gravitational mass, based on the observed effects,
but that conclusion is only one among others that are possible;
therefore,
If dark matter is not interacting with the stars gravitationally, then
what is the underlying force? It can't be electromagnetic, because that
force would be evidenced in the spectra (Zeeman splitting and/or
synchrotron radiation).
know it is not? The Cherenkov radiation is evidence of the creation of
If we don't know that the evidence is there then how would we
know that it is there? I know this question sounds a bit stupid,
but it goes to the heart of why observable data is so important.
If it's not observed, then it is not really important for
practical application.
meant is that C-radiation is emr, which is part of the light
spectrum, and it is visible as flashes of light when it occurs,
therefore, that is the evidence that you claim is not seen. I
am arguing that it is seen when the muon neutrino interacts
with the tau neutrino and begins to oscillate.
Yes, but it is a one-time event, similar to a sonic boom, that
mass, and my model shows the creation of light in a very similar way,
No. Cherenkov radiation is the evidence that particles are going
faster than the speed of light in a particular medium.
occurs when the neuts first exceed c.
As I understand it, that is the explanation for the creation of the
Example is
electrons in a nuclear reactor going faster than c/1.33. If you
are lookin for mass creation, then the best bet is to look for
absorbtion lines corresponding to that mass creation. An example
would be the 511 keV line for electron-positron events.
If your model shows Cherenkov radiation for mass creation, then
it is faulty, since it does not square with observation.
mass in a neutrino. There can be no oscillations until and unless
there is mass, and it appears that oscillations occur only when a
muon interacts with a tau, which is when the C-radiations occur.
That is my own conclusion, but I don't see where it conflicts with
observation.
Yes, of course blackbodies radiate. I was wrong about all that. It wasit is not a fact yet, as you assert. Also, to say it is call "dark"
because it does not radiate is another phony explanation, since
blackbodies do not radiate either, they only absorb radiation. For
such
Blackbodies do radiate. Example = an incandescent light bulb (3000 degK
black-body radiation). Another example = the sun (5600 degK black-body
radiation).
a bad day for me and I had a hard time concen- trating on what I was
doing. I do not know enough about blackbodies to have tried to use them
as an example, and I should have known better.
No problem.
[...]
Bull. Blackbodies and black holes are completely different. Just lookThat does show how little I know about blackbodies. Sorry.
at their definitions in any basic astronomy book.
No problem.
I am grateful you said no more than that. Others would not be so
It's clear you don't know about this. You should be posting this to
alt.sci.physics.new-theories, which is an NG devoted to crank ideas.
lenient.
As I've said before, I am just as fallible as others, esp. when I try
to
respond to everyone in a single day. I am a skeptic, but I'm not a
pessimist, and tomorrow is another day!
[smile] No problem. I kind of view myself as an intellectual
adventurer too, even though I have degrees in physics and math.
--
// The TimeLord says:
// Pogo 2.0 = We have met the aliens, and they are us!
.
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