| Topic: |
Science > Physics |
| User: |
"Wilson" |
| Date: |
24 Oct 2003 05:03:53 PM |
| Object: |
Temperature of Space. |
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
So why all this CMBR/BB crap?
Henri Wilson.
Read all about my H-aether theory and see the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
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| User: "Pmb" |
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| Title: Re: Temperature of Space. |
24 Oct 2003 05:20:50 PM |
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"Henri Wilson" <HW@..> wrote in message
news:j68jpv0reddd98kgdsej67o2b46vdatng0@4ax.com...
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
The copper will come to thermal equilibrium with the backgroud radiation.
That is to say that the rate of thermal radiation which is emitted as black
body radiation will be the same as the rate at which the body absorbs the
thermal radiation. The CMBR has a distribution which is nearly identical to
a black body radiation. It's for that reason that the final temp will be 3K.
So why all this CMBR/BB crap?
What are you refering to? What is crap about it?
Pmb
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
25 Oct 2003 04:44:12 AM |
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On Fri, 24 Oct 2003 22:20:50 GMT, "Pmb" <somenone@somewhere.com> wrote:
"Henri Wilson" <HW@..> wrote in message
news:j68jpv0reddd98kgdsej67o2b46vdatng0@4ax.com...
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
The copper will come to thermal equilibrium with the backgroud radiation.
That is to say that the rate of thermal radiation which is emitted as black
body radiation will be the same as the rate at which the body absorbs the
thermal radiation. The CMBR has a distribution which is nearly identical to
a black body radiation. It's for that reason that the final temp will be 3K.
So why all this CMBR/BB crap?
What are you refering to? What is crap about it?
Pmb
Obviously the small amount of matter that exists in space has a temperature.
That temp averages 3K.
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out there.
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
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| User: "Jean-Christophe MATHAE" |
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| Title: Re: Temperature of Space. |
25 Oct 2003 05:31:55 AM |
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"Henri Wilson" <HW@..> a écrit dans le message de
news:oahkpv807g6albf94m3jd435j5trujkd25@4ax.com...
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out
there.
And how does all this matter have got its temperature from ???
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
25 Oct 2003 06:09:49 PM |
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On Sat, 25 Oct 2003 12:31:55 +0200, "Jean-Christophe MATHAE"
<jch.mathae@free.fr> wrote:
"Henri Wilson" <HW@..> a écrit dans le message de
news:oahkpv807g6albf94m3jd435j5trujkd25@4ax.com...
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out
there.
And how does all this matter have got its temperature from ???
You could ask the same question if the temperature of space was 500C!
Where did any energy come from originally? Violation of first law.
Don't try to make out you know the answer.
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
.
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| User: "Mark Martin" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 12:59:20 PM |
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HW@..(Henri Wilson) wrote in message news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
On Sat, 25 Oct 2003 12:31:55 +0200, "Jean-Christophe MATHAE"
<jch.mathae@free.fr> wrote:
"Henri Wilson" <HW@..> a écrit dans le message de
news:oahkpv807g6albf94m3jd435j5trujkd25@4ax.com...
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out
there.
And how does all this matter have got its temperature from ???
You could ask the same question if the temperature of space was 500C!
The real question here & now is: How did *you* arrive at a
temperature estimate of 3K? Just asserting that you've come to that
number by some independent route tells us nothing of your methodology.
Show your work, then announce that everyone's been alseep at the
switch. Meanwhile, there's more to BB cosmology than ONLY the
temperature of background radiation. You have to factor in EVERYTHING,
including isotropic redshift measurements and Olber's problem. Of
course it's possible for you to come up with some isolated
hypothetical alternative way to arrive at 3K. But do you have one
which incorporates ALL the data seamlessly?
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero. Yet, at any point on the
number line aside the origin you'll find a non-zero number, plain as
day. "Something" is a subset of "nothing".
-Mark Martin
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| User: "Rich" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 01:12:07 PM |
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Mark Martin replied:
HW@..(Henri Wilson) wrote in message news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
Rich
Yet, at any point on the
number line aside the origin you'll find a non-zero number, plain as
day. "Something" is a subset of "nothing".
-Mark Martin
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| User: "Gregory L. Hansen" |
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| Title: Re: Temperature of Space. |
29 Oct 2003 09:17:12 AM |
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In article <3F9EBF87.7070502@someplace.com>,
Rich <someone@someplace.com> wrote:
Mark Martin replied:
HW@..(Henri Wilson) wrote in message
news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
\sum_{i=-N}^{N} i/N
and let N->inf.
(... - 4 - 3 - 2 - 1 + 0 + 1 + 2 + 3 + 4 + ...) / inf
= 0 / inf
inf/inf may be undefined, and 0/0 may be undefined, but 0/inf has an
answer.
--
"Let us learn to dream, gentlemen, then perhaps we shall find the
truth... But let us beware of publishing our dreams before they have been
put to the proof by the waking understanding." -- Friedrich August Kekulé
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| User: "AaronB" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 07:13:50 PM |
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Rich <someone@someplace.com> wrote in message news:<3F9EBF87.7070502@someplace.com>...
Mark Martin replied:
HW@..(Henri Wilson) wrote in message news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
Rich
Rich, set theory is very odd, especially when you deal with infinite
sets (since some infinities are larger than others... yet other
illogical things happen, for instance: the set of all odd numbers is
the same size as the set of all even numbers (makes sense) which is
the same size as the set of all integers (good luck on that one)) The
average of all real numbers being zero does makes, but not exactly
from the mathematical approach you're trying to take. Think of it this
way: for every positive real number on one side of the number line,
you will ALWAYS be able to find a negative number on the opposite side
of equal magnitude. Hence, by adding those two numbers, you will
always produce a zero result, regardless of how many terms you choose,
so long as you always choose terms of identical magnitude from each
side.
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| User: "Mark Martin" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 11:26:03 PM |
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Rich <someone@someplace.com> wrote in message news:<3F9EBF87.7070502@someplace.com>...
Mark Martin replied:
HW@..(Henri Wilson) wrote in message news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
0/0 is itself undefined. Division by zero is accomplished only by
taking the limit of the denominator as it approaches zero.
But as for the field of all integers, the elements are
characterised by the operations that are defined for them. For every
element, e, there is an inverse element -e. e + (-e) = 0. The sum of
all integers equals zero (This is how I should've said it before.),
and this is the way that the Universe can have zero total energy, by
each local incidence of energy having an exact inverse right from its
inception, which is the case due to the conservation of energy. That
the whole Universe may have zero energy isn't a new idea. It goes at
least back to 19th century thermodynamics.
-Mark Martin
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| User: "The Ghost In The Machine" |
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| Title: Sum Of All Integers |
29 Oct 2003 10:59:59 AM |
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Note subject change. Followups to sci.math only.
In sci.physics, Mark Martin
<qed100@hotmail.com>
wrote
on 28 Oct 2003 21:26:03 -0800
<7d087978.0310282126.7ea08776@posting.google.com>:
Rich <someone@someplace.com> wrote in message
news:<3F9EBF87.7070502@someplace.com>...
Mark Martin replied:
HW@..(Henri Wilson) wrote in message
news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
0/0 is itself undefined. Division by zero is accomplished only by
taking the limit of the denominator as it approaches zero.
But as for the field of all integers, the elements are
characterised by the operations that are defined for them. For every
element, e, there is an inverse element -e. e + (-e) = 0. The sum of
all integers equals zero (This is how I should've said it before.),
and this is the way that the Universe can have zero total energy, by
each local incidence of energy having an exact inverse right from its
inception, which is the case due to the conservation of energy. That
the whole Universe may have zero energy isn't a new idea. It goes at
least back to 19th century thermodynamics.
-Mark Martin
Pedant point: I'm not sure if the sum of integers is well-defined.
I'm assuming you're referring to some sort of infinite series
such as
S = 0 + 1 - 1 + 2 - 2 + 3 - 3 + 4 - 4 + 5 - 5 + ....
which would indeed sum to 0 if one groups it
S = 0 + (1 - 1) + (2 - 2) + (3 - 3) + (4 - 4) + (5 - 5) + ....
= 0 + 0 + 0 + 0 + 0 + 0 + ....
but what if one groups it
S = (0 + 1) + (-1 + 2) + (-2 + 3) + (-3 + 4) + (-4 + 5) + (-5 + ....
= 1 + 1 + 1 + 1 + 1 + ...
?
Because the underlying series generated by changing - to +
S' = 0 + 1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + ....
is obviously divergent the adept mathematician (or me :-) ) can
do all sorts of silliness with this particular sum in a manner
similar to the harmonic series.
Or one can simply observe that the partial sums
S_0 = 0
S_1 = 0 + 1
S_2 = 0 + 1 - 1
S_3 = 0 + 1 - 1 + 2
S_4 = 0 + 1 - 1 + 2 - 2
....
S_k = 0 + 1 - 1 + 2 - 2 ... + n
where there are (k+1) terms, is 0 if k is odd but k/2 if k is even.
--
#191,
It's still legal to go .sigless.
.
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| User: "Mark Martin" |
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| Title: Re: Sum Of All Integers |
29 Oct 2003 03:53:49 PM |
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The Ghost In The Machine <ewill@sirius.athghost7038suus.net> wrote in message news:<gkv471-3p7.ln1@lexi2.athghost7038suus.net>...
Note subject change. Followups to sci.math only.
In sci.physics, Mark Martin
<qed100@hotmail.com>
wrote
on 28 Oct 2003 21:26:03 -0800
<7d087978.0310282126.7ea08776@posting.google.com>:
Rich <someone@someplace.com> wrote in message
news:<3F9EBF87.7070502@someplace.com>...
Mark Martin replied:
HW@..(Henri Wilson) wrote in message
news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
0/0 is itself undefined. Division by zero is accomplished only by
taking the limit of the denominator as it approaches zero.
But as for the field of all integers, the elements are
characterised by the operations that are defined for them. For every
element, e, there is an inverse element -e. e + (-e) = 0. The sum of
all integers equals zero (This is how I should've said it before.),
and this is the way that the Universe can have zero total energy, by
each local incidence of energy having an exact inverse right from its
inception, which is the case due to the conservation of energy. That
the whole Universe may have zero energy isn't a new idea. It goes at
least back to 19th century thermodynamics.
-Mark Martin
Pedant point: I'm not sure if the sum of integers is well-defined.
I'm assuming you're referring to some sort of infinite series
such as
S = 0 + 1 - 1 + 2 - 2 + 3 - 3 + 4 - 4 + 5 - 5 + ....
which would indeed sum to 0 if one groups it
S = 0 + (1 - 1) + (2 - 2) + (3 - 3) + (4 - 4) + (5 - 5) + ....
= 0 + 0 + 0 + 0 + 0 + 0 + ....
but what if one groups it
S = (0 + 1) + (-1 + 2) + (-2 + 3) + (-3 + 4) + (-4 + 5) + (-5 + ....
= 1 + 1 + 1 + 1 + 1 + ...
?
Because the underlying series generated by changing - to +
S' = 0 + 1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + ....
is obviously divergent the adept mathematician (or me :-) ) can
do all sorts of silliness with this particular sum in a manner
similar to the harmonic series.
Or one can simply observe that the partial sums
S_0 = 0
S_1 = 0 + 1
S_2 = 0 + 1 - 1
S_3 = 0 + 1 - 1 + 2
S_4 = 0 + 1 - 1 + 2 - 2
...
S_k = 0 + 1 - 1 + 2 - 2 ... + n
where there are (k+1) terms, is 0 if k is odd but k/2 if k is even.
Interesting, but really irrelevant to the original point. The point
was only to serve up an illustration of the zero-ness of the energy
content. If integers in the abstract don't turn out to serve so well,
then all one has to do is cite energy conservation directly.
-Mark Martin
.
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| User: "Robert J. Kolker" |
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| Title: Re: Sum Of All Integers |
29 Oct 2003 07:32:36 PM |
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Mark Martin wrote:
Interesting, but really irrelevant to the original point. The point
was only to serve up an illustration of the zero-ness of the energy
content. If integers in the abstract don't turn out to serve so well,
then all one has to do is cite energy conservation directly.
Here is a fact you might find useful some day: A series does not
converge if its n-th term does not have zero as a limit as n goes to
infinity.
Bob Kolker
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| User: "J 891" |
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| Title: Re: Sum Of All Integers |
02 Nov 2003 08:56:43 AM |
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The Ghost In The Machine <ewill@sirius.athghost7038suus.net> wrote in message news:<gkv471-3p7.ln1@lexi2.athghost7038suus.net>...
Note subject change. Followups to sci.math only.
In sci.physics, Mark Martin
<qed100@hotmail.com>
wrote
on 28 Oct 2003 21:26:03 -0800
<7d087978.0310282126.7ea08776@posting.google.com>:
Rich <someone@someplace.com> wrote in message
news:<3F9EBF87.7070502@someplace.com>...
Mark Martin replied:
HW@..(Henri Wilson) wrote in message
news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
[...]
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero.
Does it? Let's see, average is sum over number, so we end up with
oo/oo.
Is oo/oo = 0?
0/0 is itself undefined. Division by zero is accomplished only by
taking the limit of the denominator as it approaches zero.
But as for the field of all integers, the elements are
characterised by the operations that are defined for them. For every
element, e, there is an inverse element -e. e + (-e) = 0. The sum of
all integers equals zero (This is how I should've said it before.),
and this is the way that the Universe can have zero total energy, by
each local incidence of energy having an exact inverse right from its
inception, which is the case due to the conservation of energy. That
the whole Universe may have zero energy isn't a new idea. It goes at
least back to 19th century thermodynamics.
-Mark Martin
Pedant point: I'm not sure if the sum of integers is well-defined.
I'm assuming you're referring to some sort of infinite series
such as
S = 0 + 1 - 1 + 2 - 2 + 3 - 3 + 4 - 4 + 5 - 5 + ....
which would indeed sum to 0 if one groups it
S = 0 + (1 - 1) + (2 - 2) + (3 - 3) + (4 - 4) + (5 - 5) + ....
= 0 + 0 + 0 + 0 + 0 + 0 + ....
but what if one groups it
S = (0 + 1) + (-1 + 2) + (-2 + 3) + (-3 + 4) + (-4 + 5) + (-5 + ....
= 1 + 1 + 1 + 1 + 1 + ...
?
Because the underlying series generated by changing - to +
S' = 0 + 1 + 1 + 2 + 2 + 3 + 3 + 4 + 4 + 5 + 5 + ....
is obviously divergent the adept mathematician (or me :-) ) can
do all sorts of silliness with this particular sum in a manner
similar to the harmonic series.
Or one can simply observe that the partial sums
S_0 = 0
S_1 = 0 + 1
S_2 = 0 + 1 - 1
S_3 = 0 + 1 - 1 + 2
S_4 = 0 + 1 - 1 + 2 - 2
...
S_k = 0 + 1 - 1 + 2 - 2 ... + n
where there are (k+1) terms, is 0 if k is odd but k/2 if k is even.
[Accuracy warning, I am working from memory of my university days long
ago.]
In any sequence, this series does not converge in the standard sense
at all. But even if it did, it is not surprising that you can
rearrange it and get different answers.
A series is said to be "absolutely convergent" if the sum of the
absolute values of the terms also converges (not necessarily to the
same value). If the terms of an absolutely convergent series are
rearranged then it will still converge and to the same value. If the
terms of a convergent series are all positive (e.g. the power series
of exp(x) for any positive x) then the series is obviously absolutely
convergent. But there are many series which are not all positive that
are also absolutely convergent. The power series exp(x) for negative
x or sin(x) and cos(x) for any x are examples. The convergence of
exp(x) can be used to easily prove the convergence of these series.
If a series converges but is not absolutely convergent, then it is
said to be "conditionally convergent". These are odd beasts. You can
rearrange the terms to make them diverge, and more surprisingly, you
can rearrange the terms to arrive at any desired answer.
The series 1 - 1/2 + 1/3 - 1/4 + 1/5 etc is an example of a
conditionally convergent series. It is easy to prove that it
converges but if you make all the terms positive then it diverges. So
you can rearrange it to come to any answer you like.
For the meaning of the terms as I am using them and some more detail,
see http://mathworld.wolfram.com/AbsoluteConvergence.html and links on
that page. This is a great site.
J
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| User: "The Ghost In The Machine" |
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| Title: Re: Sum Of All Integers |
02 Nov 2003 04:36:49 PM |
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In sci.physics, J 891
<j_891@hotmail.com>
wrote
on 2 Nov 2003 06:56:43 -0800
<386aaf52.0311020656.9936f73@posting.google.com>:
The Ghost In The Machine <ewill@sirius.athghost7038suus.net> wrote in message news:<gkv471-3p7.ln1@lexi2.athghost7038suus.net>...
Note subject change. Followups to sci.math only.
[snip for brevity]
Pedant point: I'm not sure if the sum of integers is well-defined.
[snip]
Or one can simply observe that the partial sums
S_0 = 0
S_1 = 0 + 1
S_2 = 0 + 1 - 1
S_3 = 0 + 1 - 1 + 2
S_4 = 0 + 1 - 1 + 2 - 2
...
S_k = 0 + 1 - 1 + 2 - 2 ... + n
where there are (k+1) terms, is 0 if k is odd but k/2 if k is even.
[Accuracy warning, I am working from memory of my university days long
ago.]
In any sequence, this series does not converge in the standard sense
at all. But even if it did, it is not surprising that you can
rearrange it and get different answers.
A series is said to be "absolutely convergent" if the sum of the
absolute values of the terms also converges (not necessarily to the
same value). If the terms of an absolutely convergent series are
rearranged then it will still converge and to the same value. If the
terms of a convergent series are all positive (e.g. the power series
of exp(x) for any positive x) then the series is obviously absolutely
convergent. But there are many series which are not all positive that
are also absolutely convergent. The power series exp(x) for negative
x or sin(x) and cos(x) for any x are examples. The convergence of
exp(x) can be used to easily prove the convergence of these series.
If a series converges but is not absolutely convergent, then it is
said to be "conditionally convergent". These are odd beasts. You can
rearrange the terms to make them diverge, and more surprisingly, you
can rearrange the terms to arrive at any desired answer.
The series 1 - 1/2 + 1/3 - 1/4 + 1/5 etc is an example of a
conditionally convergent series. It is easy to prove that it
converges but if you make all the terms positive then it diverges. So
you can rearrange it to come to any answer you like.
For the meaning of the terms as I am using them and some more detail,
see http://mathworld.wolfram.com/AbsoluteConvergence.html and links on
that page. This is a great site.
You are correct as far as *my* memory goes (I graduated in 1983) :-).
In any event, good explanation; also, I've found mathworld.wolfram.com
is chock full of stuff.
J
--
#191,
It's still legal to go .sigless.
.
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| User: "G=EMC^2 Glazier" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 01:45:22 PM |
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The interior of a BH is colder than space. Bert
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| User: "Double-A" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 05:33:56 PM |
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(G=EMC^2 Glazier) wrote in message news:<2251-3F9EC752-107@storefull-2356.public.lawson.webtv.net>...
The interior of a BH is colder than space. Bert
Makes sense, Burt, since everyone falling in becomes "frozen" at the event horizon.
Double-A
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 04:54:40 PM |
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On Tue, 28 Oct 2003 14:45:22 -0500 (EST), (G=EMC^2
Glazier) wrote:
The interior of a BH is colder than space. Bert
Did you measure it personally?
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
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| User: "G=EMC^2 Glazier" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 05:16:39 PM |
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Hi Henri Did not have to go inside a BH.(you ask) Makes good thinking
to realize a BH has no moving parts,and motion creates friction,and
friction is transformed into heat. Henri our minds can go to
infinity,and a BH might be infinite. Bert
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| User: "Sam Wormley" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 10:11:27 PM |
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G=EMC^2 Glazier wrote:
Hi Henri Did not have to go inside a BH.(you ask) Makes good thinking
to realize a BH has no moving parts,and motion creates friction,and
friction is transformed into heat. Henri our minds can go to
infinity,and a BH might be infinite. Bert
Interior can't be measured Herb--What you probably read was that black holes
formed by collapsed stars are indeed millions of times colder than the
2.7 K of interstellar space. My point is that nano black holes are hot.
Whether there are any about at this point in the history of the universe
is another matter.
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 04:53:56 PM |
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On 28 Oct 2003 10:59:20 -0800, (Mark Martin) wrote:
HW@..(Henri Wilson) wrote in message news:<1i0mpv8ncoona0er9g0ko5d92a3csqbvdp@4ax.com>...
On Sat, 25 Oct 2003 12:31:55 +0200, "Jean-Christophe MATHAE"
<jch.mathae@free.fr> wrote:
"Henri Wilson" <HW@..> a écrit dans le message de
news:oahkpv807g6albf94m3jd435j5trujkd25@4ax.com...
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out
there.
And how does all this matter have got its temperature from ???
You could ask the same question if the temperature of space was 500C!
The real question here & now is: How did *you* arrive at a
temperature estimate of 3K? Just asserting that you've come to that
number by some independent route tells us nothing of your methodology.
it's an educated suggestion Mark.
Show your work, then announce that everyone's been alseep at the
switch. Meanwhile, there's more to BB cosmology than ONLY the
temperature of background radiation. You have to factor in EVERYTHING,
including isotropic redshift measurements and Olber's problem. Of
course it's possible for you to come up with some isolated
hypothetical alternative way to arrive at 3K. But do you have one
which incorporates ALL the data seamlessly?
I have explained all these things elsewhere. Tired light explains the galactic
red shift.
Where did any energy come from originally? Violation of first law.
Good question. The answer in BB cosmology is that a total energy in
the cosmos of zero isn't ruled out by observations. On the other hand,
it's already known that the total change in any system's energy tends
toward zero. The Universe probably has zero energy on average, just as
the set of all integers average out to zero. Yet, at any point on the
number line aside the origin you'll find a non-zero number, plain as
day. "Something" is a subset of "nothing".
In other words, you have no idea either.
But I partly agree. 'Nothing' can have certain properties.
-Mark Martin
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
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| User: "Mark Martin" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 09:42:13 PM |
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HW@..(Henri Wilson) wrote in message news:<6mstpvoav6bjo332f2u3v1pe0fng28ckpt@4ax.com>...
The real question here & now is: How did *you* arrive at a
temperature estimate of 3K? Just asserting that you've come to that
number by some independent route tells us nothing of your methodology.
it's an educated suggestion Mark.
So that's your whole methodology? Wow, how impressive. Beats the
hell out of Gamow.
-Mark Martin
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| User: "Sam Wormley" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 10:26:43 PM |
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Henri Wilson wrote:
I have explained all these things elsewhere. Tired light explains the galactic
red shift.
Some Scientifically Inaccurate Claims Concerning Cosmology and Relativity
http://math.ucr.edu/home/baez/RelWWW/wrong.html
http://www.astro.ucla.edu/~wright/Stolmar_Errors.html
WMAP data
http://www.astro.ucla.edu/~wright/cosmolog.htm#News
Ref: Volume 292, Number 5526, Issue of 29 Jun 2001, p. 2414.
Copyright © 2001 by The American Association for the Advancement of Science
ASTROPHYSICS: 'Tired-Light' Hypothesis Gets Re-Tired
Charles Seife
The "tired-light" hypothesis, mainstay of a dwindling band
of contrarians who deny the big bang and its corollary, the
expanding universe, has suffered a one-two punch.
Observations of supernovae and of galaxies provide the best
direct evidence that the universe is truly expanding and
promise to shed light on the evolution of galaxies to boot.
"The expansion is real. It's not due to an unknown physical
process. That is the conclusion," says Allan Sandage, an
astrophysicist at the Carnegie Observatories in Pasadena,
California, and leader of the galaxy study.
It's a conclusion that most astronomers reached long ago. In
1929, Edwin Hubble announced that light from distant
galaxies is redder than light from nearby ones. Hubble and
others took the redshifts as evidence that the universe is
expanding, causing distant galaxies to speed away faster
than nearby ones. To an observer on Earth, they reasoned,
this would appear to stretch the wavelength of their light,
just as the sound of a police-car siren seems to drop in
frequency as it speeds away. However, within a few months of
the publication of Hubble's paper, astrophysicist Franz
Zwicky came up with an alternative explanation: that
galaxies' light reddens because it loses energy as it passes
through space. In Zwicky's tired-light scenario, the
universe doesn't expand at all. Distant galaxies are red not
because they are moving, but because their light has
traveled farther and gotten pooped along the way.
Beyond the fringe. "Tired light"--a radical alternative to
the standard expanding-universe model of the cosmos--has
just failed two crucial tests.
When experimenters first measured the cosmic microwave
background more than 30 years ago, they found that the
radiation was too dim to be explained by Zwicky's
hypothesis. That realization relegated "tired light" firmly
to the fringe of physics, but scientists still sought more
direct proofs of the expansion of the cosmos.
Two new papers provide the best direct evidence yet. The
first, slated to appear in Astrophysical Journal, measures
the brightening and dimming of a certain type of supernova.
Thanks to Einstein's theory of relativity, if distant
supernovae are speeding away from us, they will appear to
flare and fade at a more leisurely pace than close-by ones.
A team of scientists led by Gerson Goldhaber of the Lawrence
Berkeley National Laboratory (LBNL) in Berkeley, California,
has shown that this is, indeed, the case with 42 recently
analyzed supernovae. "It's such a clean-looking curve," says
Saul Perlmutter, a member of the LBNL team. "It's very
unambiguous."
In the second study, Sandage and Lori Lubin of Johns Hopkins
University in Baltimore analyzed space-based measurements of
the surface brightness of galaxies. Both the standard
expanding-universe and the tired-light theory, they
realized, agree that redshifted light should make distant
galaxies look dimmer than they really are. In an expanding
universe, however, time dilation and other relativistic
distortions will also dim distant galaxies, making them
appear much fainter than tired-light theory dictates. What's
more, young stars--and thus young galaxies--tend to be
considerably brighter than old ones. When that extra
brightness is taken into account, the observations match
expanding-universe predictions, as Lubin and Sandage will
report in Astronomical Journal. For the tired-light theory
to be correct, young galaxies would have to be dimmer,
rather than brighter, than old ones. "There's no way to
explain that," says Lubin.
Although not surprising in themselves, the results are
useful for "tidying things up in our cosmology," says
Michael Pahre, an astronomer at the Harvard-Smithsonian
Center for Astrophysics in Cambridge, Massachusetts, who
performed a similar surface-brightness experiment in the
mid-1990s. By comparing the expanding-universe theory's
predictions with observed values of the surface brightness
of distant galaxies, scientists can work backward and figure
out how much brighter those galaxies must have been earlier
in the history of the universe.
Even so, researchers doubt whether the results will convert
tired-light diehards. "I don't think it's possible to
convince people who are holding on to tired light," says Ned
Wright, an astrophysicist at the University of California,
Los Angeles. "I would say it is more a problem for a
psychological journal than for Science."
.
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
30 Oct 2003 11:53:26 AM |
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On Wed, 29 Oct 2003 04:26:43 GMT, Sam Wormley <swormley1@mchsi.com> wrote:
Henri Wilson wrote:
I have explained all these things elsewhere. Tired light explains the galactic
red shift.
Some Scientifically Inaccurate Claims Concerning Cosmology and Relativity
http://math.ucr.edu/home/baez/RelWWW/wrong.html
http://www.astro.ucla.edu/~wright/Stolmar_Errors.html
WMAP data
http://www.astro.ucla.edu/~wright/cosmolog.htm#News
Ref: Volume 292, Number 5526, Issue of 29 Jun 2001, p. 2414.
Copyright © 2001 by The American Association for the Advancement of Science
ASTROPHYSICS: 'Tired-Light' Hypothesis Gets Re-Tired
Charles Seife
The "tired-light" hypothesis, mainstay of a dwindling band
of contrarians who deny the big bang and its corollary, the
expanding universe, has suffered a one-two punch.
Observations of supernovae and of galaxies provide the best
direct evidence that the universe is truly expanding and
promise to shed light on the evolution of galaxies to boot.
"The expansion is real. It's not due to an unknown physical
process. That is the conclusion," says Allan Sandage, an
astrophysicist at the Carnegie Observatories in Pasadena,
California, and leader of the galaxy study.
It's a conclusion that most astronomers reached long ago. In
1929, Edwin Hubble announced that light from distant
galaxies is redder than light from nearby ones. Hubble and
others took the redshifts as evidence that the universe is
expanding, causing distant galaxies to speed away faster
than nearby ones. To an observer on Earth, they reasoned,
this would appear to stretch the wavelength of their light,
just as the sound of a police-car siren seems to drop in
frequency as it speeds away. However, within a few months of
the publication of Hubble's paper, astrophysicist Franz
Zwicky came up with an alternative explanation: that
galaxies' light reddens because it loses energy as it passes
through space. In Zwicky's tired-light scenario, the
universe doesn't expand at all. Distant galaxies are red not
because they are moving, but because their light has
traveled farther and gotten pooped along the way.
Beyond the fringe. "Tired light"--a radical alternative to
the standard expanding-universe model of the cosmos--has
just failed two crucial tests.
When experimenters first measured the cosmic microwave
background more than 30 years ago, they found that the
radiation was too dim to be explained by Zwicky's
hypothesis. That realization relegated "tired light" firmly
to the fringe of physics, but scientists still sought more
direct proofs of the expansion of the cosmos.
Two new papers provide the best direct evidence yet. The
first, slated to appear in Astrophysical Journal, measures
the brightening and dimming of a certain type of supernova.
Thanks to Einstein's theory of relativity, if distant
supernovae are speeding away from us, they will appear to
flare and fade at a more leisurely pace than close-by ones.
A team of scientists led by Gerson Goldhaber of the Lawrence
Berkeley National Laboratory (LBNL) in Berkeley, California,
has shown that this is, indeed, the case with 42 recently
analyzed supernovae. "It's such a clean-looking curve," says
Saul Perlmutter, a member of the LBNL team. "It's very
unambiguous."
In the second study, Sandage and Lori Lubin of Johns Hopkins
University in Baltimore analyzed space-based measurements of
the surface brightness of galaxies. Both the standard
expanding-universe and the tired-light theory, they
realized, agree that redshifted light should make distant
galaxies look dimmer than they really are. In an expanding
universe, however, time dilation and other relativistic
distortions will also dim distant galaxies, making them
appear much fainter than tired-light theory dictates. What's
more, young stars--and thus young galaxies--tend to be
considerably brighter than old ones. When that extra
brightness is taken into account, the observations match
expanding-universe predictions, as Lubin and Sandage will
report in Astronomical Journal. For the tired-light theory
to be correct, young galaxies would have to be dimmer,
rather than brighter, than old ones. "There's no way to
explain that," says Lubin.
Although not surprising in themselves, the results are
useful for "tidying things up in our cosmology," says
Michael Pahre, an astronomer at the Harvard-Smithsonian
Center for Astrophysics in Cambridge, Massachusetts, who
performed a similar surface-brightness experiment in the
mid-1990s. By comparing the expanding-universe theory's
predictions with observed values of the surface brightness
of distant galaxies, scientists can work backward and figure
out how much brighter those galaxies must have been earlier
in the history of the universe.
Even so, researchers doubt whether the results will convert
tired-light diehards. "I don't think it's possible to
convince people who are holding on to tired light," says Ned
Wright, an astrophysicist at the University of California,
Los Angeles. "I would say it is more a problem for a
psychological journal than for Science."
Why bother quoting this circular stuff Wormsley?
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
.
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| User: "Paul B. Andersen" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 03:13:07 PM |
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"Henri Wilson" <HW@..> skrev i melding news:oahkpv807g6albf94m3jd435j5trujkd25@4ax.com...
On Fri, 24 Oct 2003 22:20:50 GMT, "Pmb" <somenone@somewhere.com> wrote:
"Henri Wilson" <HW@..> wrote in message
news:j68jpv0reddd98kgdsej67o2b46vdatng0@4ax.com...
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
The copper will come to thermal equilibrium with the backgroud radiation.
That is to say that the rate of thermal radiation which is emitted as black
body radiation will be the same as the rate at which the body absorbs the
thermal radiation. The CMBR has a distribution which is nearly identical to
a black body radiation. It's for that reason that the final temp will be 3K.
So why all this CMBR/BB crap?
What are you refering to? What is crap about it?
Pmb
Obviously the small amount of matter that exists in space has a temperature.
That temp averages 3K.
Indeed.
(Most of) It will be in thermal equilibrium with the CMBR.
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out there.
Oooops, Henry.
Most of the "cold matter out there" is hydrogen.
Forgotten the spectrum from a thin hydrogen gas?
This is basic stuff for the author of a physics book, isn't it?
Or doesn't that book cover Kirchoff's laws of radiation?
Paul
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
28 Oct 2003 04:59:47 PM |
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On Tue, 28 Oct 2003 22:13:07 +0100, "Paul B. Andersen" <paul.b.andersen@hia.no>
wrote:
"Henri Wilson" <HW@..> skrev i melding news:oahkpv807g6albf94m3jd435j5trujkd25@4ax.com...
On Fri, 24 Oct 2003 22:20:50 GMT, "Pmb" <somenone@somewhere.com> wrote:
"Henri Wilson" <HW@..> wrote in message
news:j68jpv0reddd98kgdsej67o2b46vdatng0@4ax.com...
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
The copper will come to thermal equilibrium with the backgroud radiation.
That is to say that the rate of thermal radiation which is emitted as black
body radiation will be the same as the rate at which the body absorbs the
thermal radiation. The CMBR has a distribution which is nearly identical to
a black body radiation. It's for that reason that the final temp will be 3K.
So why all this CMBR/BB crap?
What are you refering to? What is crap about it?
Pmb
Obviously the small amount of matter that exists in space has a temperature.
That temp averages 3K.
Indeed.
(Most of) It will be in thermal equilibrium with the CMBR.
and if the CMBR happened to be at 100K you would still come up with BB
nonsense.
The CMBR has nothing whatsoever to do with any bloody 'expansion of the
universe'. It is just black body radiation from all the cold matter out there.
Oooops, Henry.
Most of the "cold matter out there" is hydrogen.
Forgotten the spectrum from a thin hydrogen gas?
This is basic stuff for the author of a physics book, isn't it?
Or doesn't that book cover Kirchoff's laws of radiation?
Ther is a lot more to it than that. The equilibrium state is probably more
influenced by the light from all the stars than from the rare gases in space.
Then you have to take into account the 'tired light' affect because thisapplies
to the cold radiation as well as the hot star light.
Paul
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
.
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| User: "Sam Wormley" |
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| Title: Re: Temperature of Space. |
24 Oct 2003 05:14:58 PM |
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Henri Wilson wrote:
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
So why all this CMBR/BB crap?
Yeah... a little less that 3K now, but in the past it was higher.
See Frequently Asked Questions in Cosmology, Henri
http://www.astro.ucla.edu/~wright/cosmology_faq.html
Some Scientifically Inaccurate Claims Concerning Cosmology and Relativity
http://math.ucr.edu/home/baez/RelWWW/wrong.html
http://www.astro.ucla.edu/~wright/Stolmar_Errors.html
.
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
24 Oct 2003 05:20:02 PM |
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On Fri, 24 Oct 2003 22:14:58 GMT, Sam Wormley <swormley1@mchsi.com> wrote:
Henri Wilson wrote:
If I take a copper sphere into deep space, what be its final temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
So why all this CMBR/BB crap?
Yeah... a little less that 3K now, but in the past it was higher.
Why is it the about the same everywhere?
See Frequently Asked Questions in Cosmology, Henri
http://www.astro.ucla.edu/~wright/cosmology_faq.html
Some Scientifically Inaccurate Claims Concerning Cosmology and Relativity
http://math.ucr.edu/home/baez/RelWWW/wrong.html
http://www.astro.ucla.edu/~wright/Stolmar_Errors.html
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
.
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| User: "Mark Folsom" |
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| Title: Re: Temperature of Space. |
24 Oct 2003 10:03:27 PM |
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"Henri Wilson" <HW@..> wrote in message
news:t89jpv88ksho4ug9rtj61bpe5u255f9of3@4ax.com...
On Fri, 24 Oct 2003 22:14:58 GMT, Sam Wormley <swormley1@mchsi.com> wrote:
Henri Wilson wrote:
If I take a copper sphere into deep space, what be its final
temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
So why all this CMBR/BB crap?
Yeah... a little less that 3K now, but in the past it was higher.
Why is it the about the same everywhere?
It isn't. If you put the thing in space about 93000000 miles from the sun,
it will be much warmer.
Mark Folsom
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| User: "Pmb" |
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| Title: Re: Temperature of Space. |
25 Oct 2003 06:03:03 AM |
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"Mark Folsom" <folsom_snip_man@redshift.com> wrote in message
news:vpjqd4h4b5iq60@corp.supernews.com...
"Henri Wilson" <HW@..> wrote in message
news:t89jpv88ksho4ug9rtj61bpe5u255f9of3@4ax.com...
On Fri, 24 Oct 2003 22:14:58 GMT, Sam Wormley <swormley1@mchsi.com>
wrote:
Henri Wilson wrote:
If I take a copper sphere into deep space, what be its final
temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
So why all this CMBR/BB crap?
Yeah... a little less that 3K now, but in the past it was higher.
Why is it the about the same everywhere?
It isn't. If you put the thing in space about 93000000 miles from the
sun,
it will be much warmer.
Quite true - I was ignoring the sun and considering only CMBR - from the
sound of his post that's what he sounded like he was interested in. When the
sun is included then the temp can get huge on one side while at the same
time freezing on the other side.
Pmb
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| User: "Wilson" |
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| Title: Re: Temperature of Space. |
25 Oct 2003 04:41:17 AM |
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On Fri, 24 Oct 2003 20:03:27 -0700, "Mark Folsom"
<folsom_snip_man@redshift.com> wrote:
"Henri Wilson" <HW@..> wrote in message
news:t89jpv88ksho4ug9rtj61bpe5u255f9of3@4ax.com...
On Fri, 24 Oct 2003 22:14:58 GMT, Sam Wormley <swormley1@mchsi.com> wrote:
Henri Wilson wrote:
If I take a copper sphere into deep space, what be its final
temperature?
There isn't much out there but it still has a temperature.
My guess is about 3K.
So why all this CMBR/BB crap?
Yeah... a little less that 3K now, but in the past it was higher.
Why is it the about the same everywhere?
It isn't. If you put the thing in space about 93000000 miles from the sun,
it will be much warmer.
There is an awful lot of space between stars.
I reckon it averages 3K.
Big Bang, Big BULL!!
Mark Folsom
Henri Wilson.
See the funny side of relativity:
http://www.users.bigpond.com/HeWn/index.htm
.
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