| |
Main
Date: 11 Nov 2006 03:18:49
From: Loser
Subject: The tread of choice
|
http://antwrp.gsfc.nasa.gov/apod/image/0611/mcmurdopan_spirit_big.jpg
Moonboots and rover treads go hand in hand.
Incidently, how did those treads come about in the immediate foreground?
Wind?
|
|
| |
Date: 11 Nov 2006 09:08:50
From: HeyJP
Subject: Re: The tread of choice
|
Loser wrote:
>
> Incidently, how did those treads come about in the immediate foreground?
> Wind?
>
According to NASA notes, the tread mark in the foreground (left of
center) and the "trenching" near it was created when the right front
tire rubbed into the surface (this tire no longer rotates due to a
wheel motor failure.) Six wheels total on the rover.
The white coloration that is revealed is thought to be due to the
sulphur-rich salty minerals in the substrate. The whole planet isn't
red, just the very thin surface area exposed to sun and atmosphere.
Current thinking is that the overall red color of Mars is due to the
oxidation of labradorite whichi is prevalent in martian soil.
Labradorite has been shown to oxidize when exposed to the gases in Mars
atmosphere at very low temperatures in the presence of harsh UV light
which is a typical day in the life of a beach going martian. ;-)
Amazing photos though, eh?
Jim
|
| | |
Date: 11 Nov 2006 17:31:55
From: Loser
Subject: Re: The tread of choice
|
"HeyJP" <jp.pollock@gmail.com > wrote in message
news:1163264930.650196.280510@b28g2000cwb.googlegroups.com...
>
> Loser wrote:
>
>>
>> Incidently, how did those treads come about in the immediate foreground?
>> Wind?
>>
>
> According to NASA notes, the tread mark in the foreground (left of
> center) and the "trenching" near it was created when the right front
> tire rubbed into the surface (this tire no longer rotates due to a
> wheel motor failure.) Six wheels total on the rover.
>
> The white coloration that is revealed is thought to be due to the
> sulphur-rich salty minerals in the substrate. The whole planet isn't
> red, just the very thin surface area exposed to sun and atmosphere.
>
> Current thinking is that the overall red color of Mars is due to the
> oxidation of labradorite whichi is prevalent in martian soil.
> Labradorite has been shown to oxidize when exposed to the gases in Mars
> atmosphere at very low temperatures in the presence of harsh UV light
> which is a typical day in the life of a beach going martian. ;-)
That process is abysmally slow to produce negatively charged O2. Why all
the planet
is reddish is still a mystery.
|
| | | |
Date: 11 Nov 2006 17:43:21
From: Chris L Peterson
Subject: Re: The tread of choice
|
On Sat, 11 Nov 2006 17:31:55 GMT, "Loser" <loser@tloasy.net > wrote:
>That process is abysmally slow to produce negatively charged O2. Why all
>the planet
>is reddish is still a mystery.
Abysmally slow processes operating over extremely long time periods can
produce significant results.
_________________________________________________
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
|
| | | | |
Date: 11 Nov 2006 18:25:11
From: Loser
Subject: Re: The tread of choice
|
"Chris L Peterson" <clp@alumni.caltech.edu > wrote in message
news:0r2cl29o5irrk7bsnvq9bqegm6hjbbjesv@4ax.com...
> On Sat, 11 Nov 2006 17:31:55 GMT, "Loser" <loser@tloasy.net> wrote:
>
>>That process is abysmally slow to produce negatively charged O2. Why all
>>the planet
>>is reddish is still a mystery.
>
> Abysmally slow processes operating over extremely long time periods can
> produce significant results.
True..but only an idiot would make a final iron clad conclusion at this
point.
|
| | | | | |
Date: 11 Nov 2006 19:20:55
From: Chris L Peterson
Subject: Re: The tread of choice
|
On Sat, 11 Nov 2006 18:25:11 GMT, "Loser" <loser@tloasy.net > wrote:
>> Abysmally slow processes operating over extremely long time periods can
>> produce significant results.
>
>True..but only an idiot would make a final iron clad conclusion at this
>point.
However, nobody here has come to such a conclusion. The most widely
accepted theory was given, that's all.
_________________________________________________
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
|
| | | | | | |
Date: 11 Nov 2006 20:12:07
From: Loser
Subject: Re: The tread of choice
|
"Chris L Peterson" <clp@alumni.caltech.edu > wrote in message
news:ri8cl2dnhrcdb3e0do6g9ispnfkljvcen7@4ax.com...
> On Sat, 11 Nov 2006 18:25:11 GMT, "Loser" <loser@tloasy.net> wrote:
>
>>> Abysmally slow processes operating over extremely long time periods can
>>> produce significant results.
>>
>>True..but only an idiot would make a final iron clad conclusion at this
>>point.
>
> However, nobody here has come to such a conclusion. The most widely
> accepted theory was given, that's all.
it isn't that widely accepted. it's been widely refuted if anything. but it
does offer some
explanation.
|
| | | | | | | |
Date: 11 Nov 2006 20:17:22
From: Chris L Peterson
Subject: Re: The tread of choice
|
On Sat, 11 Nov 2006 20:12:07 GMT, "Loser" <loser@tloasy.net > wrote:
>it isn't that widely accepted. it's been widely refuted if anything. but it
>does offer some
>explanation.
Since you are apparently aware of more widely accepted theories, perhaps
you could enlighten us? A post offering alternative theories would be
far more useful than one that simply challenges (without support) one
particular well accepted theory.
_________________________________________________
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
|
| | | | | | | | |
Date: 11 Nov 2006 17:03:59
From: Joe S.
Subject: Re: The tread of choice
|
"Chris L Peterson" <clp@alumni.caltech.edu > wrote in message
news:9obcl29drv4960t4s67k52tttup4i0imtp@4ax.com...
> On Sat, 11 Nov 2006 20:12:07 GMT, "Loser" <loser@tloasy.net> wrote:
>
>>it isn't that widely accepted. it's been widely refuted if anything. but
>>it
>>does offer some
>>explanation.
>
> Since you are apparently aware of more widely accepted theories, perhaps
> you could enlighten us? A post offering alternative theories would be
> far more useful than one that simply challenges (without support) one
> particular well accepted theory.
>
> _________________________________________________
>
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
Never wrassle with a pig.
You solve nothing, everyone gets muddy, but the pig loves it.
|
| |
Date: 11 Nov 2006 06:18:41
From: Loser
Subject: As a geologist
|
As a geologist would say...why the white stratum on a reddish Mars?
http://antwrp.gsfc.nasa.gov/apod/image/0611/mcmurdopan_spirit_big.jpg
|
| |
Date: 11 Nov 2006 10:42:54
From: HeyJP
Subject: Re: The tread of choice
|
Loser wrote:
>
> True..but only an idiot would make a final iron clad conclusion at this
> point.
>
ha ha ha. Good one. "Iron clad conclusion" would explain the red
color!!
Jim
|
|
