Michael Coslo wrote:
Man has no effect upon the weather? Fine, show me the mechanism by which
the retention of heat in the atmosphere is not affect by the percentage
of greenhouse gases and water vapor. We would not exist without the
effect, so discarding the effect is impossible.

Therefore, get rid of all the water and CO2? It
appears from the following graph that C02 density
is a lagging indicator introducing the next ice age.
25000 years from now, those greenhouse gases will
come in really handy.

http://upload.wikimedia.org/wikipedi...core-petit.png
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com

Art Unwin wrote:
We can learn about that and past environments by
examining the different layers of ice.

You're right, Art. The last Global Warming cycle
peaked about 8000 years ago and ever since, the
average temperature has been drifting down toward
the next ice age. That is obvious to anyone who can
read a graph.

http://upload.wikimedia.org/wikipedi...core-petit.png

Global Warming is the second biggest hoax ever
perpetuated upon mankind.
--
73, Cecil, IEEE, OOTC, http://www.w5dxp.com

On Jul 30, 11:35*pm, tom wrote:
J. Mc Laughlin wrote:
Dear Group: * While I attend only now-and-then, it seems as it has been days
since new communications have been posted.

Something might have changed with my ISP or I asserted some secret
instruction.

73, * Mac * N8TT

You're fine. *Sometimes it's just quiet.

Art is in an institution or fresh back with good meds. *Others are
probably busy with it being summer. *Those of us in the upper midwest
haven't had a "normal" summer yet this year which is just fine by me.
Bring on the drought, bring on more cold summers!

tom
K0TAR

Hes back things should pick up.

On Thu, 30 Jul 2009 22:51:24 -0400, "J. Mc Laughlin"
wrote:

Dear Group: While I attend only now-and-then, it seems as it has been days
since new communications have been posted.

Hi Mac,

'tis the nature of things. Participation has been falling from the
peak of 1999-2001, down by about 6dB on average, but 10dB for July (if
posting volume were power, mostly dissipated heat; double that if you
think of postings as lost potential).

The posting count follows the classic battleship curve of emerging
then declining fads, fashion, schools of thought, what-have-you social
trends. We are now as engaged as we were in 1995. Consult:
http://groups.google.com/group/rec.r...na/about?hl=en

I would not speculate or offer that counts indicate quality, however.

73's
Richard Clark, KB7QHC

Dear Richard and Group: Ah so!

Since I have taken to automating the purging of notes from authors-of-noise,
it occurred to me that I might have turned up the squelch too high. I am
relieved to know that is probably not the case.

In the matter of antennas: my esteemed colleague AB8T's EM class' antenna
project was a great success. Students designed UHF TV antennas (Channels
14-51) using EZNEC5+, constructed the antennas, and then had their
performance compared to expected. It was an opportunity for students to
learn-by-doing in several areas. As readers on this group know well,
antennas involve several areas of science and engineering. The one
important area not covered because it was thought too far from EM, was the
issue of survivability in the presence of wind/ice loads.

73, Mac N8TT

--
J. McLaughlin; Michigan, USA
Home:
"Richard Clark" wrote in message
...
On Thu, 30 Jul 2009 22:51:24 -0400, "J. Mc Laughlin"
wrote:

Dear Group: While I attend only now-and-then, it seems as it has been
days
since new communications have been posted.

Hi Mac,

'tis the nature of things. Participation has been falling from the
peak of 1999-2001, down by about 6dB on average, but 10dB for July (if
posting volume were power, mostly dissipated heat; double that if you
think of postings as lost potential).

The posting count follows the classic battleship curve of emerging
then declining fads, fashion, schools of thought, what-have-you social
trends. We are now as engaged as we were in 1995. Consult:
http://groups.google.com/group/rec.r...na/about?hl=en

I would not speculate or offer that counts indicate quality, however.

73's
Richard Clark, KB7QHC

On Fri, 31 Jul 2009 10:11:32 -0400, "J. Mc Laughlin"
wrote:

Dear Richard and Group: Ah so!

Since I have taken to automating the purging of notes from authors-of-noise,
it occurred to me that I might have turned up the squelch too high. I am
relieved to know that is probably not the case.

In the matter of antennas: my esteemed colleague AB8T's EM class' antenna
project was a great success. Students designed UHF TV antennas (Channels
14-51) using EZNEC5+, constructed the antennas, and then had their
performance compared to expected. It was an opportunity for students to
learn-by-doing in several areas. As readers on this group know well,
antennas involve several areas of science and engineering. The one
important area not covered because it was thought too far from EM, was the
issue of survivability in the presence of wind/ice loads.

Hi Mac,

It sounds like you will survive this fading battleship curve by having
secured your own life boat with these class projects - congratulations
to AB8T.

Myself, I find more interesting "antenna" applications being designed
at the nanoscale in a remarkable field called Surface Plasmon
Resonance.

73's
Richard Clark, KB7QHC

"Richard Clark" ha scritto nel messaggio
...

Myself, I find more interesting "antenna" applications being designed
at the nanoscale in a remarkable field called Surface Plasmon
Resonance.

73's
Richard Clark, KB7QHC

Myself, still keep alive the interest on antenna and this group simply with
a rock-stable state of mind that concern in don't ever buy a commercial
antenna.

My 2 cents,

-.-. --.-

"Richard Clark" ha scritto nel messaggio
...

Myself, I find more interesting "antenna" applications being designed
at the nanoscale in a remarkable field called Surface Plasmon
Resonance.

73's
Richard Clark, KB7QHC

Myself, still keep alive the interest on antenna and this group simply with
a rock-stable state of mind that concern in don't ever buy a commercial
antenna.

My 2 cents,

-.-. --.-

well your still here 2 years on....