| Topic: |
Science > Physics |
| User: |
"Robert Clark" |
| Date: |
13 Mar 2005 08:56:28 AM |
| Object: |
Dense fogs in Valles Marineris Mars. |
Presentations from the First Mars Express conference held in February
are available here:
First Mars Express Conference Presentations.
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=3D36537
These reports are longer than the 2-page abstracts seen from the Lunar
and Planetary Science Conference, some over 30 pages long.
A great image of dense fog in Valles Marineris is shown in this
report:
Reflectance of fog in Valles Marineris.
A=2E Inada
http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=3D36724
And this report has a beautiful full-color image of this very dense
fog:
Adsorption water driven processes on Mars.
D=2E M=F6hlmann
http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=3D36779
This article speculates on how adsorbed layers of water might be used
by microbes on Mars.
Valles Marineris is both low altitude and low latitude so should be
within the pressure and temperature range to permit liquid water for
this fog close to the surface.
cf.,
From: Robert Clark (rgregoryclark@yahoo.com)
Subject: Supercooled liquid water can occur in clouds below 0 degrees
C=2E
Newsgroups: sci.astro, alt.sci.planetary, sci.geo.meteorology,
sci.geo.geology, sci.geo.mineralogy
Date: 2004-07-30 06:53:02 PST
http://groups.google.co.uk/groups?th=3D5bba314873613fde&
Bob Clark
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| User: "Robert Clark" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
15 Mar 2005 04:56:46 AM |
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Here's the link to that dense fog over Marineris:
http://sciforums.com/attachment.php?attachmentid=3D3999
Bob Clark
Robert Clark wrote:
Presentations from the First Mars Express conference held in February
are available here:
First Mars Express Conference Presentations.
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=3D36537
These reports are longer than the 2-page abstracts seen from the
Lunar
and Planetary Science Conference, some over 30 pages long.
A great image of dense fog in Valles Marineris is shown in this
report:
Reflectance of fog in Valles Marineris.
A. Inada
http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=3D36724
And this report has a beautiful full-color image of this very dense
fog:
Adsorption water driven processes on Mars.
D. M=F6hlmann
http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=3D36779
This article speculates on how adsorbed layers of water might be used
by microbes on Mars.
Valles Marineris is both low altitude and low latitude so should be
within the pressure and temperature range to permit liquid water for
this fog close to the surface.
cf.,
From: Robert Clark (rgregoryclark@yahoo.com)
Subject: Supercooled liquid water can occur in clouds below 0 degrees
C.
Newsgroups: sci.astro, alt.sci.planetary, sci.geo.meteorology,
sci.geo.geology, sci.geo.mineralogy
Date: 2004-07-30 06:53:02 PST
http://groups.google.co.uk/groups?th=3D5bba314873613fde&
=20
=20
Bob Clark
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| User: "Mitchell Jones" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
17 Mar 2005 12:49:09 AM |
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In article <1110884206.940776.184270@g14g2000cwa.googlegroups.com>,
"Robert Clark" <rgregoryclark@yahoo.com> wrote:
Here's the link to that dense fog over Marineris:
http://sciforums.com/attachment.php?attachmentid=3999
***{Wow! Has that been retouched? If not, that's one of the most
spectacular Mars photos I've ever seen! Of especial interest is what
appears to be a pool of liquid water showing at the far right of the
photo. Using the scale shown, the location of the pool is 129 km down
from the top edge, and 22 km in from the right edge. It looks like a
nice blue pool of water! And I see other apparent pools elsewhere, all
of them down in the low areas, some obscured by fog. The NASA folks, of
course, will explain it all away. "It's just another one of them pesky
false color photos," they will say. That's their standard comment
whenever lots of green or blue jumps out at the "lay" observer. --MJ}***
Bob Clark
Robert Clark wrote:
Presentations from the First Mars Express conference held in February
are available here:
First Mars Express Conference Presentations.
http://sci.esa.int/science-e/www/object/index.cfm?fobjectid=36537
These reports are longer than the 2-page abstracts seen from the
Lunar
and Planetary Science Conference, some over 30 pages long.
A great image of dense fog in Valles Marineris is shown in this
report:
Reflectance of fog in Valles Marineris.
A. Inada
http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=36724
And this report has a beautiful full-color image of this very dense
fog:
Adsorption water driven processes on Mars.
D. Möhlmann
http://sci.esa.int/science-e/www/object/doc.cfm?fobjectid=36779
This article speculates on how adsorbed layers of water might be used
by microbes on Mars.
Valles Marineris is both low altitude and low latitude so should be
within the pressure and temperature range to permit liquid water for
this fog close to the surface.
cf.,
From: Robert Clark (rgregoryclark@yahoo.com)
Subject: Supercooled liquid water can occur in clouds below 0 degrees
C.
Newsgroups: sci.astro, alt.sci.planetary, sci.geo.meteorology,
sci.geo.geology, sci.geo.mineralogy
Date: 2004-07-30 06:53:02 PST
http://groups.google.co.uk/groups?th=5bba314873613fde&
Bob Clark
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| User: "Jarmo Korteniemi" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
30 Mar 2005 03:31:28 PM |
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I have to raise a couple of points which haven't been taken into account yet.
At least I haven't noticed them - I have to admit that I didn't read through
all the stuff you wrote, Mitchell. The messages were loooong. :)
Anyway: The sensitivity of the different HRSC color channels varies. You might
notice that if you look at the raw images (available somewhere in the ESA web
chaos*) from which the 'color' images are derived from. You get the appr.
wavelength curves from the HRSC portion of ESA SP-1240, available at
h€ttp://sci.esa.int/science-e/www/object/index.cfm?fobjectid=34885
But still, this doesn't give you the correlation between the color channels.
I should be aware of any such c€orrelatios, since I am working in the HRSC
Science team, and to my knowledge no accuate correlations have been achieved.
In other words, the colors in the images have not been retouched as such, but
the "blue" you see in the imges is just _bluer_ than the rest. I bet there is
considerable stretching in the histograms of the original images for PR
purposes, i.e. to _emphasize_ the features seen in the image. Thus, the fog in
Valles Marineris is, yes, bluer and brighter than the ground. And yes, the
Reull Vallis center is brighter in blue channel and darker in red and green
channels. But no, it is NOT as blue in real life as shown in the PR image, and
no, I can not see any kind of lake in the close-up images. You have to
remember that the original HRSC images (which I am looking at as I write this)
are up to 20 meters/pixel in that region, and even better resolution MOC
narrow angle images* go up to 2 m/pixel. And there is no indication of a
liquid surface in those images. There are indications of formations carved or
otherwise created by liquid flowing matter, however.
* If you want the web addresses for these, I'll give you them. Don't have time
to search the idiotically arranged web sites now... :)
Jarmo
--------------------------------------------------------------------
Jarmo Korteniemi * http://www.student.oulu.fi/~jkorteni *
Planetology group, Astronomy, University of Oulu, Finland
s-posti / email: jarmo DOT#1 korteniemi AT oulu DOT#2 fi
puhelin / phone: +358 (45) 6362264
huone / room: TÄ215 (klo 12-20, ajoittain aiemminkin)
--------------------------------------------------------------------
--
Do you believe in astrology? Jupiter exerts less gravitational influence
over a human body than does an angry rhino less than two meters away...
.
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| User: "Mitchell Jones" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
30 Mar 2005 07:13:44 PM |
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In article <d2f5rg$47g$1@news.oulu.fi>,
Jarmo Korteniemi <aa.bee@see.dee.ee> wrote:
I have to raise a couple of points which haven't been taken into account yet.
At least I haven't noticed them - I have to admit that I didn't read through
all the stuff you wrote, Mitchell. The messages were loooong. :)
Anyway: The sensitivity of the different HRSC color channels varies. You might
notice that if you look at the raw images (available somewhere in the ESA web
chaos*) from which the 'color' images are derived from. You get the appr.
wavelength curves from the HRSC portion of ESA SP-1240, available at
h€ttp://sci.esa.int/science-e/www/object/index.cfm?fobjectid=34885
But still, this doesn't give you the correlation between the color channels.
I should be aware of any such c€orrelatios, since I am working in the HRSC
Science team, and to my knowledge no accuate correlations have been achieved.
In other words, the colors in the images have not been retouched as such, but
the "blue" you see in the imges is just _bluer_ than the rest. I bet there is
considerable stretching in the histograms of the original images for PR
purposes, i.e. to _emphasize_ the features seen in the image. Thus, the fog in
Valles Marineris is, yes, bluer and brighter than the ground. And yes, the
Reull Vallis center is brighter in blue channel and darker in red and green
channels. But no, it is NOT as blue in real life as shown in the PR image, and
no, I can not see any kind of lake in the close-up images. You have to
remember that the original HRSC images (which I am looking at as I write this)
are up to 20 meters/pixel in that region, and even better resolution MOC
narrow angle images* go up to 2 m/pixel. And there is no indication of a
liquid surface in those images. There are indications of formations carved or
otherwise created by liquid flowing matter, however.
* If you want the web addresses for these, I'll give you them. Don't have time
to search the idiotically arranged web sites now... :)
Jarmo
***{The issue regarding the colors is not about your camera, which I am
sure was as accurate as was available for the money budgeted at the time
of purchase. What this is about is physics. Specifically, it is about
the physics of light absorption in water.
Let me try to explain by means of an analogy. Suppose we are about to
have a footrace. The race requires you to run dead out. If you fall
behind the pack, you are disqualified. There are 5 world-class runners
lined up. The runner on the left is wearing a red uniform. The guy next
to him is wearing orange. The next guy wears yellow. Then there is a
runner wearing green. And next to him there is a guy wearing blue. Now
the guy in red is weakest. He will fall on his face after running 5000
meters. The guy in orange is only a little better. He can only run 6000
meters. The guy in yellow is still better. He can go 7000 meters. The
guy in green is pretty stout: he can go 8000 meters. And the guy in blue
is the strongest. He can run 9000 meters.
The requirements of the race are to run to a wall, grab a flag the same
color as your uniform, and carry it back to the finish line. Who will
complete the race? The answer: it depends on the distance to the wall.
Since the runners have to run to the wall and then back, the total
distance is twice the distance to the wall. Thus if the wall is less
than 5000/2 = 2500 meters, then all the runners will finish. But if the
distance is a bit less than 6000/2 = 3000 meters, then everybody will
finish but the guy in red. And if the distance to the wall is a bit less
than 7000/2 =3500 meters, then red and orange will drop out, and only
yellow, green, and blue will finish. And if the distance is a bit less
than 8000/2 = 4000 meters, then only green and blue will finish. And,
finally, if the distance to the wall is a bit less than 9000/2 = 4500
meters, then only blue will finish.
Now imagine that the race is between photons instead of people, and that
they are running through water toward the bottom of a lake. We know that
the absorption coefficients are higher for the longer wavelengths. It's
basic physics. Result: if the bottom of the lake is close enough, all
wavelengths will make it to the bottom and back to the surface again,
and thence to the camera. But if it is a bit deeper, the red won't make
it, so only the orange, yellow, green, and blue will come back to the
camera. And, deeper still, only yellow, green, and blue will make it
back. And then, even deeper, only green and blue will make it back, then
only blue (actually blueviolet, since violet and blue have pretty much
the same absorption coefficients), then, even deeper, no light will make
it back from the lake bottom, and you will see only black.
What this means is that when the lake is fairly shallow, the full
spectrum, or almost the full spectrum, will make it back to the camera,
and the bottom will show an approximation of its true color, which is
yellow, in this case. But as the water gets deeper and deeper,
absorption will cause the longer wavelengths of light streaming in from
the sun to be progressively eliminated. Result: the color of the bottom
will gradually change as the lake gets deeper and deeper, appearing to
be yellow-blue-green, then bluegreen, then blue, then black, as the
bottom drops off into the depths.
And, of course, that is exactly what the image shows.
Are you going to tell me that your camera is designed to deliberately
color code depth in that way? If so, why did it not do that elsewhere in
the photo? Why did the depths get color coded only in the area that
looks like a lake?
The answer, obviously, is that your camera was not designed to color
code depth. Indeed, your camera has no idea of the distance traveled by
the individual photons that enter its lens, and no such automatic color
coding of depth is even possible. Instead, mother nature took care of
the color coding, by invoking absorption coefficients for water that
were directly proportional to the wavelengths of the incident light.
Mother nature ensured that water would absorb red most strongly of all,
then orange, then yellow, then green, and then blue. The result is the
gradual change in the color of the bottom with increasing depth which we
see in the photo. And the color coding only appears in the area that
looks like a lake, because that's where the water is in the photo. That
pattern, in fact, is like a fingerprint, a smoking gun if you will,
indicating the absorption of light due to passage through water.
Bottom line: Witches will ride brooms before that's anything other than
a lake on Mars.
--Mitchell Jones}***
--------------------------------------------------------------------
Jarmo Korteniemi * http://www.student.oulu.fi/~jkorteni *
Planetology group, Astronomy, University of Oulu, Finland
s-posti / email: jarmo DOT#1 korteniemi AT oulu DOT#2 fi
puhelin / phone: +358 (45) 6362264
huone / room: TÄ215 (klo 12-20, ajoittain aiemminkin)
--------------------------------------------------------------------
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| User: "Bob Harrington" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
31 Mar 2005 01:47:09 AM |
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Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice floating on
water, the simple test would be to look for specular surface reflections
from the sun. Shouldn't be hard for NASA or ESA to arrange a photo pass
or two looking for same.
Lack of such reflections would surely put a small dent in your theory,
unless Mars has some new form of "matte" water...
Or would it just be another government coverup?
.
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| User: "chosp" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
31 Mar 2005 03:10:02 PM |
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"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote in message
news:UJ6dnQwD2PliN9bfRVn-ow@giganews.com...
Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice floating on
water, the simple test would be to look for specular surface reflections
from the sun. Shouldn't be hard for NASA or ESA to arrange a photo pass
or two looking for same.
It has been done. There have no specular surface reflections detected in
the area in question.
Lack of such reflections would surely put a small dent in your theory,
Essentially, it rules it out.
unless Mars has some new form of "matte" water...
Or would it just be another government coverup?
.
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| User: "Mitchell Jones" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
31 Mar 2005 07:44:58 PM |
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In article <JGZ2e.62982$le4.7506@fed1read04>, "chosp" <chosp@cox.net>
wrote:
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote in message
news:UJ6dnQwD2PliN9bfRVn-ow@giganews.com...
Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice floating on
water, the simple test would be to look for specular surface reflections
from the sun. Shouldn't be hard for NASA or ESA to arrange a photo pass
or two looking for same.
It has been done. There have no specular surface reflections detected in
the area in question.
***{Nor are any possible. Even at the height of summer, Reull Vallis is
16 degrees from the plane of Mar's orbit--which means: it is physically
impossible for the sun to be almost directly overhead when a photo is
snapped, as it would have to be in order for Mars Express to capture its
reflection on the surface of the lake. (A reflected solar image on the
surface of the lake could be no more than about 10 km north of the
center of the photo without being out of the lake and on dry land. Thus
the angle from Mars Express to the spot, call it angle A, would be such
that tan A = 10/273 = .0366, and so A = 2.1 degrees. Thus the reflection
angle is insufficient, and any putative solar image would fall far from
the lake, on dry ground.) --MJ}***
Lack of such reflections would surely put a small dent in your theory,
Essentially, it rules it out.
***{No, it is entirely to be expected.
Look, you naysayers are determined to have your way with this, so why
not stop spinning your wheels and focus on the weak points? Basically,
this discussion has been veering back and forth between two different
photos, and treating them as if they are one and the same. But they
aren't the same, and that fact is the source of whatever uncertainty may
remain in my analysis.
The probative value of the fog photo stems from (a) the fact that it can
be plausibly connected to a known source of vulcanism (the Tharsis
volcanos), (b) the fact that the depth below datum at that location is
known to be 5 km (see pg. 1 of Dr. Moehlmann's paper), (c) the thickness
of the fog and the indications of what may be blue pools of water within
it. However, the pattern of color variation indicating the absorption of
light in water, and the plainly visible hydrothermal vent, are absent
from the fog photo, or, at least, are not clearly and unarguably
present.
The probative value of the Reull Vallis photo stems from (a) the pattern
of color variation indicative of light absorption in water, (b) the
plainly visible hydrothermal vent running along the bottom of the lake,
(c) the brightly colored mineral deposits around the margins of the
lake, (d) the blurry spot that suggests the presence of a plume of warm,
rising water. Note, however, that while I have been assuming that the
depth below datum at that location is sufficient to support the
existence of liquid water, I don't know that for a fact. And note also
that I have been assuming a connection to some plausible underground
heat source, despite the fact that I don't really know that either, in
this case.
To sum up: the Reull Vallis lake photo is *not* in the same location as
the photo showing fog in Valles Marineris. Hence all of the arguments
that apply at one location do not necessarily apply at the other.
Nevertheless, witches will ride brooms before that's anything other than
a lake on Mars. :-)
--Mitchell Jones}***
unless Mars has some new form of "matte" water...
Or would it just be another government coverup?
.
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| User: "Vendicar Decarian" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
01 Apr 2005 08:48:36 AM |
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"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-69A17F.19465231032005@spectator.sj.sys.us.xo.net...
Nevertheless, witches will ride brooms before that's anything other than
a lake on Mars. :-)
Mitchell Jones has a powerful NEED to believe there is a lake on mars, even
though here in the reality based community we know that this is quite
impossible.
Mitchell Jones suffers from a host of other faith based delusions which a
quick web search will readily illustrate.
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| User: "Jarmo Korteniemi" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
01 Apr 2005 10:09:52 AM |
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In alt.sci.planetary <52d3e.12881$RM2.1765@read1.cgocable.net> stated that:
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-69A17F.19465231032005@spectator.sj.sys.us.xo.net...
Nevertheless, witches will ride brooms before that's anything other than
a lake on Mars. :-)
Mitchell Jones has a powerful NEED to believe there is a lake on mars, even
though here in the reality based community we know that this is quite
impossible.
Mitchell Jones suffers from a host of other faith based delusions which a
quick web search will readily illustrate.
Come on, behave nice. Mitchell does have many good points on the
possibility of water existing there. I bought that, I know it is a
possibility, even though a remote one.. If somebody doesn't think it's a
possibility, then he doesn't look at all the evidence. You shouldn't
act like a know-it-all, but look at everything. In the process, you can,
will, and should make assumptions. But also, you should be able to admit
that the assumptions you've made were wrong when you know better. I know
I've done that.
There are indications that small amounts of water have recently been
flooded onto the surface, and the planet experiences some very odd
conditions once in a while - now we _are_ in a cold period. I wouldn't
be so surprised if there was some liquid water on the surface at some
point somewhere, even now (though covered by ice or dust or whatever).
Here, at Reull Vallis, however, it does not seem to be the case.
If you want to have a decent discussion about this stuff, don't
start picking on somebody. That's idiotic to say the least. And since
you didn't have anything else to say.. well think about it.
Jarmo
--------------------------------------------------------------------
Jarmo Korteniemi * http://www.student.oulu.fi/~jkorteni *
Planetology group, Astronomy, University of Oulu, Finland
s-posti / email: jarmo DOT#1 korteniemi AT oulu DOT#2 fi
puhelin / phone: +358 (45) 6362264
huone / room: TÄ215 (klo 12-20, ajoittain aiemminkin)
--------------------------------------------------------------------
--
Do you believe in astrology? Jupiter exerts less gravitational influence
over a human body than does an angry rhino less than two meters away...
.
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| User: "Vendicar Decarian" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
01 Apr 2005 08:21:25 PM |
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Mitchell Jones suffers from a host of other faith based delusions which
a
quick web search will readily illustrate.
"Jarmo Korteniemi" <aa.bee@see.dee.ee> wrote in message
news:d2jrog$f7s$1@news.oulu.fi...
Come on, behave nice. Mitchell does have many good points on the
possibility of water existing there. I bought that, I know it is a
possibility, even though a remote one..
Sorry. The pressure is too low, and should any liquid water exist it would
readily sublimate. Further, no body of water would be liquid in the cold
temperatures on the surface. This would necessarily mean that the sourface
of the water would not be clear but covered in dust. In addition, any ice
would similarly be muddied by dust throuout, and hence would not be
transparent.
Sorry to burst your bubble.
"Jarmo Korteniemi" <aa.bee@see.dee.ee> wrote in message
news:d2jrog$f7s$1@news.oulu.fi...
There are indications that small amounts of water have recently been
flooded onto the surface, and the planet experiences some very odd
conditions once in a while - now we _are_ in a cold period.
Apparently. Although no one seems to know how subsurface water can be so
close to the surface.
However, it isn't really relevant, for water wouldn't be emitted as nice,
blue, clean, perfectly clear water. But emitted as silt infused sludge or
mud.
This is all too clear for anyone of us living in the Reality Based
Community.
The Faithful Fanatics and fools, whine about conspiracy.
.
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| User: "Mitchell Jones" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
04 Apr 2005 05:08:06 PM |
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In article <d2jrog$f7s$1@news.oulu.fi>,
Jarmo Korteniemi <aa.bee@see.dee.ee> wrote:
In alt.sci.planetary <52d3e.12881$RM2.1765@read1.cgocable.net> stated that:
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-69A17F.19465231032005@spectator.sj.sys.us.xo.net...
Nevertheless, witches will ride brooms before that's anything other than
a lake on Mars. :-)
Mitchell Jones has a powerful NEED to believe there is a lake on mars, even
though here in the reality based community we know that this is quite
impossible.
Mitchell Jones suffers from a host of other faith based delusions which a
quick web search will readily illustrate.
Come on, behave nice.
***{That's the notorious Scott Nudds, trying to escape from his odious
and well-deserved reputation as a venomous, scientifically illiterate,
left-wing troll, by calling himself "Vendicar Decarian." Your excellent
advice is thoroughly wasted on him, because he is not here to discuss
and learn. Discussion, to him, involves nothing more than his telling us
the way it is, and calling us names if we dare to disagree. What you
should do is killfile him and be done with him, as I did years ago.
--MJ}***
Mitchell does have many good points on the
possibility of water existing there. I bought that, I know it is a
possibility, even though a remote one.. If somebody doesn't think it's a
possibility, then he doesn't look at all the evidence. You shouldn't
act like a know-it-all, but look at everything. In the process, you can,
will, and should make assumptions. But also, you should be able to admit
that the assumptions you've made were wrong when you know better. I know
I've done that.
There are indications that small amounts of water have recently been
flooded onto the surface, and the planet experiences some very odd
conditions once in a while - now we _are_ in a cold period. I wouldn't
be so surprised if there was some liquid water on the surface at some
point somewhere, even now (though covered by ice or dust or whatever).
Here, at Reull Vallis, however, it does not seem to be the case.
***{I disagree, for the following reasons:
(1) If that's not a lake in the ESA photo we have been discussing, then
the fact that the pattern of colors mimics the pattern of light
absorption in water, and that by means of it we can correctly calculate
the depth of the bottom, becomes something akin to a miracle.
(2) The fact that the declivity running along the bottom of the lake
hasn't filled up with dust over the ages is also akin to a miracle, if
the declivity isn't a hydrothermal vent. Bare patches at high elevations
can be swept clean by wind, but the other side of that coin is the
accumulation of windborn debris at lower levels, where wind has no
access. When we don't see such accumulations in a deep declivity such as
this one, an explanation is required. And the obvious explanation, in
this case, is episodic flooding.
(3) The bright yellow minerals around the lake, which appear to be
encrustations laid down over the surface by a "salting out" process
(akin to lime buildup in a teakettle), are unexplained, unless we admit
that they are due to episodic flooding, followed by boiling
off/evaporation of the water, leaving behind the minerals that were
dissolved therein.
(4) The various impact craters in the photo would show the effects of
impact shock, fragmentation, and the uncovering of subsurface deposits
that are different from those nearer the surface, if they had not been
covered over by mineral deposits that precipitated out of water. But
they don't. Instead, the surface variation which is invariably present
after a meteoric impact has been covered over by thick, yellow mineral
encrustations. And the source of those encrustations is plainly evident:
there is an enormous hydrothermal vent running along the bottom of the
lake
To sum up, we have the color pattern of light absorption in water, the
fact that the depth of the lake was correctly predicted based on that
color pattern, the unfilled declivity running along the bottom, and the
yellow mineral encrustations, all of which are unexplained if what we
see in the photo is not a lake. To explain it all, we need merely to
postulate episodic flooding, rising up from what is plainly a
hydrothermsl vent. Whether the cyclicality of that flooding is seasonal
or controlled by variations in geothermal heating deeper down, remains
to be determined. The question of whether it happens, however, has been
definitively answered: it does.
--Mitchell Jones}***
If you want to have a decent discussion about this stuff, don't
start picking on somebody. That's idiotic to say the least. And since
you didn't have anything else to say.. well think about it.
***{As I said, he is scientifically illiterate. He can't win on the
merits, and he knows it. Result: he piles up unsupported assertions in
mountainous heaps, and spews venom at those who disagree. Hanson deals
with him in the only way he can be dealt with, if you choose to interact
with him at all, which I do not. He is nothing but a bad smell, and is a
living illustration of the problem that killfiles were invented to
solve. --MJ}***
Jarmo
--------------------------------------------------------------------
Jarmo Korteniemi * http://www.student.oulu.fi/~jkorteni *
Planetology group, Astronomy, University of Oulu, Finland
s-posti / email: jarmo DOT#1 korteniemi AT oulu DOT#2 fi
puhelin / phone: +358 (45) 6362264
huone / room: TÄ215 (klo 12-20, ajoittain aiemminkin)
--------------------------------------------------------------------
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| User: "Vendicar Decarian" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
04 Apr 2005 10:22:04 PM |
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"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
That's the notorious Scott Nudds, trying to escape from his odious
and well-deserved reputation as a venomous, scientifically illiterate,
left-wing troll, by calling himself "Vendicar Decarian." Your excellent
advice is thoroughly wasted on him, because he is not here to discuss
and learn.
Now I know that Mitchell Jones held the view that <Da Gubberment is Pure
Evil, and Pure Violence>.
I knew that he held the view that <Global Warming is a Hoax>.
I knew that he held the view that <Towel heads should be expelled from
America.>
I knew that he held the view that <WMD Biological, Chemical, Nuclear, have
been found in Iraq>
But I had no idea that Mitchell Jones was also a MARS Crank.
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
Discussion, to him, involves nothing more than his telling us
the way it is, and calling us names if we dare to disagree. What you
should do is killfile him and be done with him, as I did years ago.
There is no better way to remain ignorant than to refuse to listen to
reason.
Mitchell Jones proves that every waking moment of his pathetic life.
As I regularly say. Conservatives will die as they live..... In a state
of self imposed ignorance.
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
(1) If that's not a lake in the ESA photo we have been discussing, then
the fact that the pattern of colors mimics the pattern of light
absorption in water, and that by means of it we can correctly calculate
the depth of the bottom, becomes something akin to a miracle.
Holes are dark Mitchell. The deeper you go, they darker they get.
Eventually they look black.
No miracle there. Just check the ones in your head and you will see what
I mean.
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
(2) The fact that the declivity running along the bottom of the lake
hasn't filled up with dust over the ages is also akin to a miracle, if
the declivity isn't a hydrothermal vent. Bare patches at high elevations
can be swept clean by wind, but the other side of that coin is the
accumulation of windborn debris at lower levels, where wind has no
access. When we don't see such accumulations in a deep declivity such as
this one, an explanation is required. And the obvious explanation, in
this case, is episodic flooding.
Flooding isn't going to prevent the accumulation of dust either. In fact
it would speed it's accumulation Water has this nasty habit of holding on
to what touches it's surface.
Now since in the picture I can't see the bottom of the depression, I would
not be so quick to assume that there is no dust there.
Perhaps you should find another image... Snicker.... That would have been
the first thing I would have done before posting a stream of Nonsense as you
have done.
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
(3) The bright yellow minerals around the lake, which appear to be
encrustations laid down over the surface by a "salting out" process
(akin to lime buildup in a teakettle), are unexplained, unless we admit
that they are due to episodic flooding, followed by boiling
off/evaporation of the water, leaving behind the minerals that were
dissolved therein.
I'm sorry, no such pattern of bright yellow anything is seen in the image.
You still smoking dope Mitchell?
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
(4) The various impact craters in the photo would show the effects of
impact shock, fragmentation, and the uncovering of subsurface deposits
that are different from those nearer the surface, if they had not been
covered over by mineral deposits that precipitated out of water.
Or covered by dust, or processed to some neutral color by weathering...
Presuming that there is a layerd surface in this area.
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
But
they don't. Instead, the surface variation which is invariably present
after a meteoric impact has been covered over by thick, yellow mineral
encrustations.
Odd. there isn't even a single yellow pixel in the image.
Oxycotin?
"Mitchell Jones" <mjones@21cenlogic.com> wrote in message
news:mjones-6B353E.17100104042005@spectator.sj.sys.us.xo.net...
To sum up,
Fools see what fools whish to see.
Meanwhile, back in the reality based community, we strive to see what is
there.
.
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| User: "Jarmo Korteniemi" |
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| Title: Re: Dense fogs in Valles Marineris Mars. |
02 Apr 2005 06:51:59 PM |
|
|
In alt.sci.planetary <mjones-69A17F.19465231032005@spectator.sj.sys.us.xo.net> stated that:
The probative value of the Reull Vallis photo stems from (a)
[snip]
(c) the brightly colored mineral deposits around the margins of the
lake,
Please, could you show these to me? I've somehow managed to bypass
this bit of info/proof.. :)
(d) the blurry spot that suggests the presence of a plume of warm,
rising water. Note, however, that while I have been assuming that the
depth below datum at that location is sufficient to support the
existence of liquid water, I don't know that for a fact. And note also
that I have been assuming a connection to some plausible underground
heat source, despite the fact that I don't really know that either, in
this case.
The depth of Reull Vallis at that spot is at maximum -2.5 km below MPR
(mean planetary radius).
Jarmo
--------------------------------------------------------------------
Jarmo Korteniemi * http://www.student.oulu.fi/~jkorteni *
Planetology group, Astronomy, University of Oulu, Finland
s-posti / email: jarmo DOT#1 korteniemi AT oulu DOT#2 fi
puhelin / phone: +358 (45) 6362264
huone / room: TÄ215 (klo 12-20, ajoittain aiemminkin)
--------------------------------------------------------------------
--
Do you believe in astrology? Jupiter exerts less gravitational influence
over a human body than does an angry rhino less than two meters away...
.
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| User: "Mitchell Jones" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
31 Mar 2005 10:44:55 AM |
|
|
In article <UJ6dnQwD2PliN9bfRVn-ow@giganews.com>,
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote:
Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice floating on
water, the simple test would be to look for specular surface reflections
from the sun. Shouldn't be hard for NASA or ESA to arrange a photo pass
or two looking for same.
Lack of such reflections would surely put a small dent in your theory,
unless Mars has some new form of "matte" water...
***{How reflective is the surface of water at a pressure of 10 to 12
millibars? Myself, I don't know. I do know, however, that a lot more
molecules are going to be jumping through the surface in the upwards
direction, per unit area, than is the case for water at 1013 millibars,
which is sea level air pressure on Earth. Will those differences alter
the reflectivity of the surface? Do you know the answer? If so, let's
see your reference. And if not I would suggest less sarcasm and a more
open mind. --MJ}***
Or would it just be another government coverup?
***{I don't see it as a coverup. I see it as institutional memory
operating. The last time NASA stirred up a lot of excitement vis-a-vis
space exploration was when their astronauts were walking on the moon.
Naturally, NASA supporters used the publicity to go for a bigger budget.
Result: other groups in Washington who wanted that money turned on them.
Those groups included welfare recipients, "environmentalists,"
"education," and a lengthy laundry list of well organized groups who
could put a lot of bodies on the streets on short notice, as well as
lots of lobbyists in the halls of congress. The result was a massacre in
which NASA not merely didn't get a budget increase, but actually got its
budget cut, and almost ceased to exist altogether. What they learned
from the experience was simple: don't pick a fight with groups that,
when push comes to shove, are much more powerful than you are. Instead,
always step off the sidewalk and into the gutter when your betters come
walking by. Always accept your intrinsic inferiority, where pressure
group warfare in Washington is concerned, and never attempt to be more
than you can be.
The reality, however, was that NASA had lots of fervent supporters whom
it could not control. If, in fact, a lot of public excitement developed
due to some event related to space exploration, then the reality was
that those supporters would lobby congress for a bigger NASA budget,
whether NASA administrators wanted them to do that or not. In other
words, if *excitement* developed in the press and the public due to some
event related to space exploration, whether it was an accomplishment of
NASA, ESA, or someone else, it was a threat to the very existence of the
agency, because supporters who did not understand the political
realities would pick another fight that NASA could not win. Result: for
decades, NASA administrators have had an unstated policy of discouraging
excitement vis-a-vis space exploration, by cutting off the flow of funds
to any researchers who were prone to generate excitement.
For example, do you remember the early Mars mission which put out a
scoop into the Martian soil, pulled back a lump of dirt, perfused it
with sterile nutrients, and measured byproduct gases to see if the
emanations were of the sort that might indicate life? In particular, do
you recall that the results were precisely what had been publicly
announced, prior to the mission, was to be taken as indicative of life?
I certainly do. And I also remember that, rather than make such an
announcement, NASA bigwigs went into a huddle for several days, and then
announced that the results proved that there was, in fact, no life on
Mars!
The point of all this is that institutional memory of the funding
disaster which resulted from the spectacular success associated with the
Apollo program has taken the form of a NASA culture that is
ultraconservative to the verge of insanity. They are ultracautious and
prone to downplay anything that might engender excitement, because
researchers who were not ultraconservative have been systematically
culled by means of denial of funding. The result is a form of madness,
and it is doing damage to one of the most important goals of mankind:
the goal of spreading ourselves to other places in the solar system,
and, ultimately, to other other systems around other stars. That goal is
important for a very simple and obvious reason: as long as we are
confined to Earth, we are subject to extinction. Numerous possibilities,
including asteroid impacts, large increases or decreases in solar
luminosity, nearby supernovas, erupting supervolcanos, a global collapse
of civilization due to economic blunders by governments, and Zeus only
knows what else, offer a virtual guarantee that, if we remain only on
Earth, we will eventually be wiped out.
--Mitchell Jones}***
.
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| User: "Bob Harrington" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
31 Mar 2005 03:25:12 PM |
|
|
Mitchell Jones wrote:
In article <UJ6dnQwD2PliN9bfRVn-ow@giganews.com>,
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote:
Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice
floating on water, the simple test would be to look for specular
surface reflections from the sun. Shouldn't be hard for NASA or ESA
to arrange a photo pass or two looking for same.
Lack of such reflections would surely put a small dent in your
theory, unless Mars has some new form of "matte" water...
***{How reflective is the surface of water at a pressure of 10 to 12
millibars? Myself, I don't know. I do know, however, that a lot more
molecules are going to be jumping through the surface in the upwards
direction, per unit area, than is the case for water at 1013
millibars, which is sea level air pressure on Earth. Will those
differences alter the reflectivity of the surface? Do you know the
answer? If so, let's see your reference. And if not I would suggest
less sarcasm and a more open mind. --MJ}***
If the surface is indeed boiling, then you lose a lot of the clarity you
claim to be seeing - try reading the date on a coin on the bottom of a
pot of boiling water. If it is merely rapid evaporation, then the
surface is still smooth enough to cast specular reflections.
As to open minds, there is such a thing as ~too~ open... for example:
making assumptions about something that one does not have all available
information for (i.e. how much manipulation has been done on the image
in question?), and then making concrete conclusions based on those
assumptions (your definitive claim that this can ~only~ be open, clear
water.)
I took this photo of the moon that proves it has been attacked by clowns
with paint cans:
http://home.comcast.net/~bobqatphotos/2004-12-27_Moon_Saturated.jpg
Or not. It is actually just this natural color image of the moon -
http://home.comcast.net/~bobqatphotos/2004-12-27_Moon.jpg
- that I used Photoshop's saturation tool to absurdly stretch the very
subtle color variations on the moon (and likely some camera sensor noise
as well).
Most images produced for public consumption by NASA and ESA have had
some - or much - color and contrast manipulation applied, both for
enhancement of details, and for just plain 'wow factor' intended to
attract the very public interest you suggest they disdain below... The
details of that manipulation are not always made clear, and sometimes
omitted entirely - a pet peeve I've held for decades.
From my own experience in image manipulation, the Mars image in question
shows obvious signs of both contrast and saturation enhancement. Were
you able to view the same Martian scene with your own unaided eyes, you
would most likely see little more than variations in reddish rock and
dust, with some slightly darker, coarser sands in the lowest parts of
the valley just as occur in many other places on Mars.
Or would it just be another government coverup?
***{I don't see it as a coverup. I see it as institutional memory
operating. The last time NASA stirred up a lot of excitement vis-a-vis
space exploration was when their astronauts were walking on the moon.
Naturally, NASA supporters used the publicity to go for a bigger
budget. Result: other groups in Washington who wanted that money
turned on them. Those groups included welfare recipients,
"environmentalists," "education," and a lengthy laundry list of well
organized groups who could put a lot of bodies on the streets on
short notice, as well as lots of lobbyists in the halls of congress.
The result was a massacre in which NASA not merely didn't get a
budget increase, but actually got its budget cut, and almost ceased
to exist altogether. What they learned from the experience was
simple: don't pick a fight with groups that, when push comes to
shove, are much more powerful than you are. Instead, always step off
the sidewalk and into the gutter when your betters come walking by.
Always accept your intrinsic inferiority, where pressure group
warfare in Washington is concerned, and never attempt to be more than
you can be.
The reality, however, was that NASA had lots of fervent supporters
whom it could not control. If, in fact, a lot of public excitement
developed due to some event related to space exploration, then the
reality was that those supporters would lobby congress for a bigger
NASA budget, whether NASA administrators wanted them to do that or
not. In other words, if *excitement* developed in the press and the
public due to some event related to space exploration, whether it was
an accomplishment of NASA, ESA, or someone else, it was a threat to
the very existence of the agency, because supporters who did not
understand the political realities would pick another fight that NASA
could not win. Result: for decades, NASA administrators have had an
unstated policy of discouraging excitement vis-a-vis space
exploration, by cutting off the flow of funds to any researchers who
were prone to generate excitement.
But wouldn't 'definitive proof' of a huge standing body of liquid water
on Mars be just the thing to upstage one's 'betters'? I now begin to
doubt your understanding of the bureaucratic mindset as well... ;^}
For example, do you remember the early Mars mission which put out a
scoop into the Martian soil, pulled back a lump of dirt, perfused it
with sterile nutrients, and measured byproduct gases to see if the
emanations were of the sort that might indicate life? In particular,
do you recall that the results were precisely what had been publicly
announced, prior to the mission, was to be taken as indicative of
life? I certainly do. And I also remember that, rather than make such
an announcement, NASA bigwigs went into a huddle for several days,
and then announced that the results proved that there was, in fact,
no life on Mars!
I recall that there were slightly ambiguous results from the test,
subsequent study showing that there were non-biological processes that
could also have produced the same outcome. It's been a while, I don't
have links to those studies handy.
The point of all this is that institutional memory of the funding
disaster which resulted from the spectacular success associated with
the Apollo program has taken the form of a NASA culture that is
ultraconservative to the verge of insanity. They are ultracautious and
prone to downplay anything that might engender excitement, because
researchers who were not ultraconservative have been systematically
culled by means of denial of funding. The result is a form of madness,
and it is doing damage to one of the most important goals of mankind:
the goal of spreading ourselves to other places in the solar system,
and, ultimately, to other other systems around other stars. That goal
is important for a very simple and obvious reason: as long as we are
confined to Earth, we are subject to extinction. Numerous
possibilities, including asteroid impacts, large increases or
decreases in solar luminosity, nearby supernovas, erupting
supervolcanos, a global collapse of civilization due to economic
blunders by governments, and Zeus only knows what else, offer a
virtual guarantee that, if we remain only on Earth, we will
eventually be wiped out.
I also recall a 'scientist' back in 1996 or so who saw a blob on a photo
of the then inbound comet Hale-Bopp, neglected to use his sky mapping
software properly so as to identify the fact that it was merely a faint
star his software didn't show - and instead made several amazing leaps
of logic to conclude that since the blob was adjacent to the comet in
his image, it was therefore also at the same distance - and thus must be
an alien craft following the comet into the solar system. Subsequently,
three dozen and change other 'open-minded' folks in San Diego bought new
athletic shoes and thumbed a ride on the mothership via sedatives,
vodka, and plastic bags over their heads...
Even if humanity spreads from Earth, we only postpone our final
annihilation as the Universe approaches absolute entropy and our very
protons decay... ;^)
In the meanwhile, I support enthusiastic but logical expansion of our
exploration of the solar system and beyond. NASA and ESA are already
providing some spectacular results from Mars and Saturn, and via the
Great Observatories, glimpses of the wonders beyond.
Bob ^,,^
.
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| User: "Mitchell Jones" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
31 Mar 2005 08:35:03 PM |
|
|
In article <OLSdnSY0Z68n99HfRVn-pA@giganews.com>,
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote:
Mitchell Jones wrote:
In article <UJ6dnQwD2PliN9bfRVn-ow@giganews.com>,
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote:
Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice
floating on water, the simple test would be to look for specular
surface reflections from the sun. Shouldn't be hard for NASA or ESA
to arrange a photo pass or two looking for same.
Lack of such reflections would surely put a small dent in your
theory, unless Mars has some new form of "matte" water...
***{How reflective is the surface of water at a pressure of 10 to 12
millibars? Myself, I don't know. I do know, however, that a lot more
molecules are going to be jumping through the surface in the upwards
direction, per unit area, than is the case for water at 1013
millibars, which is sea level air pressure on Earth. Will those
differences alter the reflectivity of the surface? Do you know the
answer? If so, let's see your reference. And if not I would suggest
less sarcasm and a more open mind. --MJ}***
If the surface is indeed boiling, then you lose a lot of the clarity you
claim to be seeing - try reading the date on a coin on the bottom of a
pot of boiling water. If it is merely rapid evaporation, then the
surface is still smooth enough to cast specular reflections.
***{I don't really know that. I would have to see some experimental
data. In any case it doesn't matter, because the Reull Vallis Lake is
never positioned where a direct, overhead photo would show a reflection.
--MJ}***
As to open minds, there is such a thing as ~too~ open... for example:
making assumptions about something that one does not have all available
information for
***{Such as assuming water at 10 mb has the same reflectivity as water
at 1013 mb? :-) --MJ}***
(i.e. how much manipulation has been done on the image
in question
***{I'm partially guilty there, I guess. Dr. Moehlmann told me there
hadn't been any special manipulation done on the fog photo--i.e.,
nothing other than what is routinely done to all color photos from that
source--and I did generalize: I assumed that is also true of the Reull
Vallis photo. But nothing has been said here so far that contradicts
that assumption. --MJ}***
?), and then making concrete conclusions based on those
assumptions (your definitive claim that this can ~only~ be open, clear
water.)
***{Hey, I had to make an extreme claim. Nobody was responding to the
thread! Don't you know nothin'? :-) --MJ}***
I took this photo of the moon that proves it has been attacked by clowns
with paint cans:
***{I saw 'em do it. :-) --MJ}***
http://home.comcast.net/~bobqatphotos/2004-12-27_Moon_Saturated.jpg
Or not. It is actually just this natural color image of the moon -
http://home.comcast.net/~bobqatphotos/2004-12-27_Moon.jpg
- that I used Photoshop's saturation tool to absurdly stretch the very
subtle color variations on the moon (and likely some camera sensor noise
as well)
***{Seriously, are you suggesting that something similar has been done
to the photos we are discussing? If so, I hope you plan to cite some
sort of evidence. I am very much *not* willing to simply assume that on
your say so, because it doesn't make any sense that ESA would do such a
thing. (Hell, I don't even think NASA would deliberately doctor a photo
in that way, though in their case I would be a lot more receptive to the
idea. :-) --MJ}***
..
Most images produced for public consumption by NASA and ESA have had
some - or much - color and contrast manipulation applied, both for
enhancement of details, and for just plain 'wow factor' intended to
attract the very public interest you suggest they disdain below... The
details of that manipulation are not always made clear, and sometimes
omitted entirely - a pet peeve I've held for decades.
***{OK, so you *are* saying they doctor their pictures for spin control
purposes. Are you aware that would constitute scientific fraud? Are you
aware that a number of people in recent years have had their careers
wrecked when such allegations came to light? I'm not saying you are
wrong, mind you. I've seen some pretty funny looking stuff myself, over
the years. However, I have never seen indications that NASA, to be very
specific, tried to *create* excitement. Quite the opposite: they seem to
go out of their way to pour cold water on everything. --MJ}***
From my own experience in image manipulation, the Mars image in question
shows obvious signs of both contrast and saturation enhancement. Were
you able to view the same Martian scene with your own unaided eyes, you
would most likely see little more than variations in reddish rock and
dust, with some slightly darker, coarser sands in the lowest parts of
the valley just as occur in many other places on Mars.
***{Are you talking about the fog photo, or Reull Vallis? --MJ}***
Or would it just be another government coverup?
***{I don't see it as a coverup. I see it as institutional memory
operating. The last time NASA stirred up a lot of excitement vis-a-vis
space exploration was when their astronauts were walking on the moon.
Naturally, NASA supporters used the publicity to go for a bigger
budget. Result: other groups in Washington who wanted that money
turned on them. Those groups included welfare recipients,
"environmentalists," "education," and a lengthy laundry list of well
organized groups who could put a lot of bodies on the streets on
short notice, as well as lots of lobbyists in the halls of congress.
The result was a massacre in which NASA not merely didn't get a
budget increase, but actually got its budget cut, and almost ceased
to exist altogether. What they learned from the experience was
simple: don't pick a fight with groups that, when push comes to
shove, are much more powerful than you are. Instead, always step off
the sidewalk and into the gutter when your betters come walking by.
Always accept your intrinsic inferiority, where pressure group
warfare in Washington is concerned, and never attempt to be more than
you can be.
The reality, however, was that NASA had lots of fervent supporters
whom it could not control. If, in fact, a lot of public excitement
developed due to some event related to space exploration, then the
reality was that those supporters would lobby congress for a bigger
NASA budget, whether NASA administrators wanted them to do that or
not. In other words, if *excitement* developed in the press and the
public due to some event related to space exploration, whether it was
an accomplishment of NASA, ESA, or someone else, it was a threat to
the very existence of the agency, because supporters who did not
understand the political realities would pick another fight that NASA
could not win. Result: for decades, NASA administrators have had an
unstated policy of discouraging excitement vis-a-vis space
exploration, by cutting off the flow of funds to any researchers who
were prone to generate excitement.
But wouldn't 'definitive proof' of a huge standing body of liquid water
on Mars be just the thing to upstage one's 'betters'? I now begin to
doubt your understanding of the bureaucratic mindset as well... ;^}
***{Do you try to upstage someone who has proven that he can beat the
living crap out of you? I think not. Well, that's the situation NASA is
in. The reality is that, in a democracy, the winos, retards,
degenerates, "teachers," blue collar workers, homeowners, the elderly,
and most of the others who have their hands in the public trough, taken
singly or taken all together, have the rocket scientists outvoted. Major
discoveries in space exploration simply do not come quickly enough to
sustain the support that they elicit immediately after they occur.
Result: if you take advantage of such an opportunity to get your budget
raised, your support will not be there when the counterattack occurs,
and at that point you will give back all of your gains, and then give up
some more. Result: if it happens to you once, as it did to NASA, you
learn, and you don't repeat that mistake again. From their perspective,
such a modus operandi is necessary. It is not, however, in the best
interests of the human race. --MJ}***
For example, do you remember the early Mars mission which put out a
scoop into the Martian soil, pulled back a lump of dirt, perfused it
with sterile nutrients, and measured byproduct gases to see if the
emanations were of the sort that might indicate life? In particular,
do you recall that the results were precisely what had been publicly
announced, prior to the mission, was to be taken as indicative of
life? I certainly do. And I also remember that, rather than make such
an announcement, NASA bigwigs went into a huddle for several days,
and then announced that the results proved that there was, in fact,
no life on Mars!
I recall that there were slightly ambiguous results from the test,
subsequent study showing that there were non-biological processes that
could also have produced the same outcome. It's been a while, I don't
have links to those studies handy.
***{There is always ambiguity in science. The point, however, was this:
they agreed in advance what a positive result would be, and, based on
what they agreed, the result they got was a positive one--which means:
indicative of the presence of life on Mars. However, that came as a
shock to those in charge, because it was not what they wanted. Result:
they changed their standards after the fact, to kill the excitement.
--MJ}***
The point of all this is that institutional memory of the funding
disaster which resulted from the spectacular success associated with
the Apollo program has taken the form of a NASA culture that is
ultraconservative to the verge of insanity. They are ultracautious and
prone to downplay anything that might engender excitement, because
researchers who were not ultraconservative have been systematically
culled by means of denial of funding. The result is a form of madness,
and it is doing damage to one of the most important goals of mankind:
the goal of spreading ourselves to other places in the solar system,
and, ultimately, to other other systems around other stars. That goal
is important for a very simple and obvious reason: as long as we are
confined to Earth, we are subject to extinction. Numerous
possibilities, including asteroid impacts, large increases or
decreases in solar luminosity, nearby supernovas, erupting
supervolcanos, a global collapse of civilization due to economic
blunders by governments, and Zeus only knows what else, offer a
virtual guarantee that, if we remain only on Earth, we will
eventually be wiped out.
I also recall a 'scientist' back in 1996 or so who saw a blob on a photo
of the then inbound comet Hale-Bopp, neglected to use his sky mapping
software properly so as to identify the fact that it was merely a faint
star his software didn't show - and instead made several amazing leaps
of logic to conclude that since the blob was adjacent to the comet in
his image, it was therefore also at the same distance - and thus must be
an alien craft following the comet into the solar system. Subsequently,
three dozen and change other 'open-minded' folks in San Diego bought new
athletic shoes and thumbed a ride on the mothership via sedatives,
vodka, and plastic bags over their heads...
***{It's always possible to embrace something because it's what you want
to believe, even if the evidence doesn't support it. But the way to
avoid that is to do what we are doing here: argue out the pros and cons
in a public forum, and, if the stronger case is made by the other side,
you change your mind. --MJ}***
Even if humanity spreads from Earth, we only postpone our final
annihilation as the Universe approaches absolute entropy and our very
protons decay... ;^)
***{I'm a steady state guy myself, so I don't have to worry about that
scenario. :-) --MJ}***
In the meanwhile, I support enthusiastic but logical expansion of our
exploration of the solar system and beyond. NASA and ESA are already
providing some spectacular results from Mars and Saturn, and via the
Great Observatories, glimpses of the wonders beyond.
Bob ^,,^
.
|
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| User: "Bob Harrington" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
01 Apr 2005 03:08:12 AM |
|
|
Mitchell Jones wrote:
In article <OLSdnSY0Z68n99HfRVn-pA@giganews.com>,
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote:
Mitchell Jones wrote:
In article <UJ6dnQwD2PliN9bfRVn-ow@giganews.com>,
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote:
Mitchell Jones wrote:
Bottom line: Witches will ride brooms before that's anything other
than a lake on Mars.
If that ~is~ liquid water, or even a thin sheet of clear ice
floating on water, the simple test would be to look for specular
surface reflections from the sun. Shouldn't be hard for NASA or
ESA to arrange a photo pass or two looking for same.
Lack of such reflections would surely put a small dent in your
theory, unless Mars has some new form of "matte" water...
***{How reflective is the surface of water at a pressure of 10 to 12
millibars? Myself, I don't know. I do know, however, that a lot more
molecules are going to be jumping through the surface in the upwards
direction, per unit area, than is the case for water at 1013
millibars, which is sea level air pressure on Earth. Will those
differences alter the reflectivity of the surface? Do you know the
answer? If so, let's see your reference. And if not I would suggest
less sarcasm and a more open mind. --MJ}***
If the surface is indeed boiling, then you lose a lot of the clarity
you claim to be seeing - try reading the date on a coin on the
bottom of a pot of boiling water. If it is merely rapid
evaporation, then the surface is still smooth enough to cast
specular reflections.
***{I don't really know that. I would have to see some experimental
data. In any case it doesn't matter, because the Reull Vallis Lake is
never positioned where a direct, overhead photo would show a
reflection. --MJ}***
Both Mars Global Surveyor and Mars Express are in polar orbits, and are
capable of pointing their cameras off nadir. The calculations would be
trivial compared to what got them there in the first place; similar
oblique viewing techniques are used by NASA's Terra and Aqua Earth
Observers to measure cloud heights, atmospheric aerosols, etc.
As to open minds, there is such a thing as ~too~ open... for
example: making assumptions about something that one does not have
all available information for
***{Such as assuming water at 10 mb has the same reflectivity as water
at 1013 mb? :-) --MJ}***
Haven't done the experiment, the cat gets rather annoyed when I pump
more than half the air out of the apartment. But I have never seen any
evidence showing a marked change in the reflectance of liquid water tied
to atmospheric pressure. Others here have shown that just ~having~ free
standing liquid water at 10 mb is rather a challenge.
(i.e. how much manipulation has been done on the image
in question
***{I'm partially guilty there, I guess. Dr. Moehlmann told me there
hadn't been any special manipulation done on the fog photo--i.e.,
nothing other than what is routinely done to all color photos from
that source--and I did generalize: I assumed that is also true of the
Reull Vallis photo. But nothing has been said here so far that
contradicts that assumption. --MJ}***
I am referring to the ESA image of Reull Vallis that you have been
describing in great detail. It sure looks contrast and color stretched
to me, but I haven't gone and looked for non-manipulated "nekkid eye"
imagery of the same location.
?), and then making concrete conclusions based on those
assumptions (your definitive claim that this can ~only~ be open,
clear water.)
***{Hey, I had to make an extreme claim. Nobody was responding to the
thread! Don't you know nothin'? :-) --MJ}***
I've forgotten more than I ever knew... Bobheimers, dontchaknow.
I took this photo of the moon that proves it has been attacked by
clowns with paint cans:
***{I saw 'em do it. :-) --MJ}***
http://home.comcast.net/~bobqatphotos/2004-12-27_Moon_Saturated.jpg
Or not. It is actually just this natural color image of the moon -
http://home.comcast.net/~bobqatphotos/2004-12-27_Moon.jpg
- that I used Photoshop's saturation tool to absurdly stretch the
very subtle color variations on the moon (and likely some camera
sensor noise as well)
***{Seriously, are you suggesting that something similar has been done
to the photos we are discussing? If so, I hope you plan to cite some
sort of evidence. I am very much *not* willing to simply assume that
on your say so, because it doesn't make any sense that ESA would do
such a thing. (Hell, I don't even think NASA would deliberately
doctor a photo in that way, though in their case I would be a lot
more receptive to the idea. :-) --MJ}***
"Doctor" wouldn't be my first choice of words... as I said below, it is
done to enhance visibility of details, both for scientific value and
because such an image will impress the taxpayer a lot more than a bland
picture of sand. I can see that any time I want in the cat's litter
box... Our eyes would never see the "Towers of Creation" in Messier 16
as HST could, we can't integrate hours of light into a single glimpse;
nor can we see in the wavelengths that NICMOS or Chandra can.
Most images produced for public consumption by NASA and ESA have had
some - or much - color and contrast manipulation applied, both for
enhancement of details, and for just plain 'wow factor' intended to
attract the very public interest you suggest they disdain below...
The details of that manipulation are not always made clear, and
sometimes omitted entirely - a pet peeve I've held for decades.
***{OK, so you *are* saying they doctor their pictures for spin
control purposes. Are you aware that would constitute scientific
fraud? Are you aware that a number of people in recent years have had
their careers wrecked when such allegations came to light? I'm not
saying you are wrong, mind you. I've seen some pretty funny looking
stuff myself, over the years. However, I have never seen indications
that NASA, to be very specific, tried to *create* excitement. Quite
the opposite: they seem to go out of their way to pour cold water on
everything. --MJ}***
No. I'm saying that too often the method and amount of manipulation -
for whatever reason - are not included with the released image. But not
always, and more and more I ~do~ see satisfying explanations and "before
and after" comparisons. The trend is in the right direction.
From my own experience in image manipulation, the Mars image in
question shows obvious signs of both contrast and saturation
enhancement. Were you able to view the same Martian scene with your
own unaided eyes, you would most likely see little more than
variations in reddish rock and dust, with some slightly darker,
coarser sands in the lowest parts of the valley just as occur in
many other places on Mars.
***{Are you talking about the fog photo, or Reull Vallis? --MJ}***
The latter.
Or would it just be another government coverup?
***{I don't see it as a coverup. I see it as institutional memory
operating. The last time NASA stirred up a lot of excitement
vis-a-vis space exploration was when their astronauts were walking
on the moon. Naturally, NASA supporters used the publicity to go
for a bigger budget. Result: other groups in Washington who wanted
that money turned on them. Those groups included welfare recipients,
"environmentalists," "education," and a lengthy laundry list of well
organized groups who could put a lot of bodies on the streets on
short notice, as well as lots of lobbyists in the halls of congress.
The result was a massacre in which NASA not merely didn't get a
budget increase, but actually got its budget cut, and almost ceased
to exist altogether. What they learned from the experience was
simple: don't pick a fight with groups that, when push comes to
shove, are much more powerful than you are. Instead, always step off
the sidewalk and into the gutter when your betters come walking by.
Always accept your intrinsic inferiority, where pressure group
warfare in Washington is concerned, and never attempt to be more
than you can be.
The reality, however, was that NASA had lots of fervent supporters
whom it could not control. If, in fact, a lot of public excitement
developed due to some event related to space exploration, then the
reality was that those supporters would lobby congress for a bigger
NASA budget, whether NASA administrators wanted them to do that or
not. In other words, if *excitement* developed in the press and the
public due to some event related to space exploration, whether it
was an accomplishment of NASA, ESA, or someone else, it was a
threat to the very existence of the agency, because supporters who
did not understand the political realities would pick another fight
that NASA could not win. Result: for decades, NASA administrators
have had an unstated policy of discouraging excitement vis-a-vis
space exploration, by cutting off the flow of funds to any
researchers who were prone to generate excitement.
But wouldn't 'definitive proof' of a huge standing body of liquid
water on Mars be just the thing to upstage one's 'betters'? I now
begin to doubt your understanding of the bureaucratic mindset as
well... ;^}
***{Do you try to upstage someone who has proven that he can beat the
living crap out of you? I think not.
If I had done nothing to earn such a beating, I would do my best to
arrange an immediate audience for him with his maker.
Well, that's the situation NASA
is in. The reality is that, in a democracy, the winos, retards,
degenerates, "teachers," blue collar workers, homeowners, the elderly,
and most of the others who have their hands in the public trough,
taken singly or taken all together, have the rocket scientists
outvoted. Major discoveries in space exploration simply do not come
quickly enough to sustain the support that they elicit immediately
after they occur. Result: if you take advantage of such an
opportunity to get your budget raised, your support will not be there
when the counterattack occurs, and at that point you will give back
all of your gains, and then give up some more. Result: if it happens
to you once, as it did to NASA, you learn, and you don't repeat that
mistake again. From their perspective, such a modus operandi is
necessary. It is not, however, in the best interests of the human
race. --MJ}***
Very few bureaucracies ever "give back" ~any~ of their gains, for any
reason. Rather, they will call a slightly smaller gain "a massive cut".
NASA's biggest black eyes have been the Shuttle disasters.
For example, do you remember the early Mars mission which put out a
scoop into the Martian soil, pulled back a lump of dirt, perfused it
with sterile nutrients, and measured byproduct gases to see if the
emanations were of the sort that might indicate life? In particular,
do you recall that the results were precisely what had been publicly
announced, prior to the mission, was to be taken as indicative of
life? I certainly do. And I also remember that, rather than make
such an announcement, NASA bigwigs went into a huddle for several
days, and then announced that the results proved that there was, in
fact, no life on Mars!
I recall that there were slightly ambiguous results from the test,
subsequent study showing that there were non-biological processes
that could also have produced the same outcome. It's been a while,
I don't have links to those studies handy.
***{There is always ambiguity in science. The point, however, was
this: they agreed in advance what a positive result would be, and,
based on what they agreed, the result they got was a positive
one--which means: indicative of the presence of life on Mars.
However, that came as a shock to those in charge, because it was not
what they wanted. Result: they changed their standards after the
fact, to kill the excitement. --MJ}***
That sounds awfully cynical...
The point of all this is that institutional memory of the funding
disaster which resulted from the spectacular success associated with
the Apollo program has taken the form of a NASA culture that is
ultraconservative to the verge of insanity. They are ultracautious
and prone to downplay anything that might engender excitement,
because researchers who were not ultraconservative have been
systematically culled by means of denial of funding. The result is
a form of madness, and it is doing damage to one of the most
important goals of mankind: the goal of spreading ourselves to
other places in the solar system, and, ultimately, to other other
systems around other stars. That goal is important for a very
simple and obvious reason: as long as we are confined to Earth, we
are subject to extinction. Numerous possibilities, including
asteroid impacts, large increases or decreases in solar luminosity,
nearby supernovas, erupting supervolcanos, a global collapse of
civilization due to economic blunders by governments, and Zeus only
knows what else, offer a virtual guarantee that, if we remain only
on Earth, we will eventually be wiped out.
I also recall a 'scientist' back in 1996 or so who saw a blob on a
photo of the then inbound comet Hale-Bopp, neglected to use his sky
mapping software properly so as to identify the fact that it was
merely a faint star his software didn't show - and instead made
several amazing leaps of logic to conclude that since the blob was
adjacent to the comet in his image, it was therefore also at the
same distance - and thus must be an alien craft following the comet
into the solar system. Subsequently, three dozen and change other
'open-minded' folks in San Diego bought new athletic shoes and
thumbed a ride on the mothership via sedatives, vodka, and plastic
bags over their heads...
***{It's always possible to embrace something because it's what you
want to believe, even if the evidence doesn't support it. But the way
to avoid that is to do what we are doing here: argue out the pros and
cons in a public forum, and, if the stronger case is made by the
other side, you change your mind. --MJ}***
So, here's another chance to prove your hypothesis: Both current Mars
orbiters have infrared imaging capabilities allowing them to "see" the
night side of the planet. A post or two up you were giving us a -10 to
+12 degrees Celsius value for the lake water; on a typical cold Martian
night, that's gonna stand out like a sore, but very warm thumb in IR!
Even if humanity spreads from Earth, we only postpone our final
annihilation as the Universe approaches absolute entropy and our very
protons decay... ;^)
***{I'm a steady state guy myself, so I don't have to worry about that
scenario. :-) --MJ}***
Then we will run out of DVDs and potato chips and resort to sending each
other to the cornfield out of sheer boredom... Note that Hollywood is
~already~ pretty much out of original ideas for films; in far less than
a few billion years, racial suicide will be infinitely preferable to
"Ishtar 271: A New Beginning"...
In the meanwhile, I support enthusiastic but logical expansion of our
exploration of the solar system and beyond. NASA and ESA are
already providing some spectacular results from Mars and Saturn, and
via the Great Observatories, glimpses of the wonders beyond.
Bob ^,,^
.
|
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|
| User: "Vendicar Decarian" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
04 Apr 2005 12:26:45 AM |
|
|
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote in message
news:HpWdnQecr-ziktDfRVn-qQ@giganews.com...
Haven't done the experiment, the cat gets rather annoyed when I pump
more than half the air out of the apartment.
I see the problem.... The solution I prefer is to pump about half the air
out of the cat first.
.
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| User: "Bob Harrington" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
04 Apr 2005 06:40:49 AM |
|
|
Vendicar Decarian wrote:
"Bob Harrington" <rch.NOS-PAM@blarg.net> wrote in message
news:HpWdnQecr-ziktDfRVn-qQ@giganews.com...
Haven't done the experiment, the cat gets rather annoyed when I pump
more than half the air out of the apartment.
I see the problem.... The solution I prefer is to pump about half
the air out of the cat first.
You haven't met my cat. I choose life...
.
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| User: "Jarmo Korteniemi" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
01 Apr 2005 03:36:25 AM |
|
|
In alt.sci.planetary <HpWdnQecr-ziktDfRVn-qQ@giganews.com> stated that:
Both Mars Global Surveyor and Mars Express are in polar orbits, and are
capable of pointing their cameras off nadir. The calculations would be
trivial compared to what got them there in the first place; similar
oblique viewing techniques are used by NASA's Terra and Aqua Earth
Observers to measure cloud heights, atmospheric aerosols, etc.
FYI: Mars Express takes those off-nadir images by default, to get the
stereo effect. The stereo 1 channel images the terrain 18.9 degrees
"ahead" of nadir, and stereo 2 18.9 degrees "behind". So what you get
is a set of nine images, taken within this 37.8 window below the
spacecraft. In my opinion, the sun should be visible on the surface,
if there were any lakes around. No such things have been sighted yet.
Jarmo
--------------------------------------------------------------------
Jarmo Korteniemi * http://www.student.oulu.fi/~jkorteni *
Planetology group, Astronomy, University of Oulu, Finland
s-posti / email: jarmo DOT#1 korteniemi AT oulu DOT#2 fi
puhelin / phone: +358 (45) 6362264
huone / room: TÄ215 (klo 12-20, ajoittain aiemminkin)
--------------------------------------------------------------------
--
Do you believe in astrology? Jupiter exerts less gravitational influence
over a human body than does an angry rhino less than two meters away...
.
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| User: "Mitchell Jones" |
|
| Title: Re: Dense fogs in Valles Marineris Mars. |
01 Apr 2005 11:40:53 AM |
|
|
In article <d2j4mp$8kf$1@news.oulu.fi>,
Jarmo Korteniemi <aa.bee@see.dee.ee> wrote:
In alt.sci.planetary <HpWdnQecr-ziktDfRVn-qQ@giganews.com> stated that:
Both Mars Global Surveyor and Mars Express are in polar orbits, and are
capable of pointing their cameras off nadir. The calculations would be
trivial compared to what got them there in the first place; similar
oblique viewing techniques are used by NASA's Terra and Aqua Earth
Observers to measure cloud heights, atmospheric aerosols, etc.
FYI: Mars Express takes those off-nadir images b | | | | | | | | | | | |