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Mars flyover from orbiter images.



 
 
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  #11  
Old March 24th 17, 03:46 PM posted to sci.astro.amateur
Mike Collins[_4_]
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Posts: 2,824
Default Mars flyover from orbiter images.

Chris L Peterson wrote:
On Fri, 24 Mar 2017 06:17:28 -0700 (PDT), "Chris.B"
wrote:

On Friday, 24 March 2017 01:13:18 UTC+1, Chris L Peterson wrote:

I'm not sure a dust storm on Mars poses much risk to someone on the
surface. The dust grains themselves could be abrasive and do some
surface damage to a suit, but otherwise, you'd hardly notice the
fastest winds on Mars, which have less energy than a mild breeze on
Earth.


That's an interesting point.

Conversely, the slightest breeze on Venus is equivalent to a hurricane on Earth.


Although you'd probably not be worrying about the force of the wind so
much as the fact that it consisted of 800° sulfuric acid!


Fahrenheit?
Hang your head in shame.


  #12  
Old March 24th 17, 04:19 PM posted to sci.astro.amateur
Chris L Peterson
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Posts: 10,007
Default Mars flyover from orbiter images.

On Fri, 24 Mar 2017 14:46:15 -0000 (UTC), Mike Collins
wrote:

Chris L Peterson wrote:
On Fri, 24 Mar 2017 06:17:28 -0700 (PDT), "Chris.B"
wrote:

On Friday, 24 March 2017 01:13:18 UTC+1, Chris L Peterson wrote:

I'm not sure a dust storm on Mars poses much risk to someone on the
surface. The dust grains themselves could be abrasive and do some
surface damage to a suit, but otherwise, you'd hardly notice the
fastest winds on Mars, which have less energy than a mild breeze on
Earth.

That's an interesting point.

Conversely, the slightest breeze on Venus is equivalent to a hurricane on Earth.


Although you'd probably not be worrying about the force of the wind so
much as the fact that it consisted of 800° sulfuric acid!


Fahrenheit?
Hang your head in shame.


Not that the units really matter at that point. 800 has a nice ring to
it. But if you prefer, we could go with 800 K, which is pretty close
to the mark.
  #13  
Old March 25th 17, 07:44 AM posted to sci.astro.amateur
Chris.B[_3_]
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Posts: 1,001
Default Mars flyover from orbiter images.

On Friday, 24 March 2017 14:40:52 UTC+1, Chris L Peterson wrote:

Although you'd probably not be worrying about the force of the wind so
much as the fact that it consisted of 800° sulfuric acid!


I wouldn't be surprised if they had their own version of Scrumpy when people became worried about climate change.

According to Venusian legend their version of Ivanky said:

"They have no Aspirin? Then let them eat Glybera!" ;-)
  #14  
Old March 25th 17, 06:00 PM posted to sci.astro.amateur
Paul Schlyter[_3_]
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Posts: 1,344
Default Mars flyover from orbiter images.

On Fri, 24 Mar 2017 09:19:33 -0600, Chris L Peterson
wrote:
On Fri, 24 Mar 2017 14:46:15 -0000 (UTC), Mike Collins
wrote:


Chris L Peterson wrote:
On Fri, 24 Mar 2017 06:17:28 -0700 (PDT), "Chris.B"
wrote:

On Friday, 24 March 2017 01:13:18 UTC+1, Chris L Peterson

wrote:

I'm not sure a dust storm on Mars poses much risk to someone

on the
surface. The dust grains themselves could be abrasive and do

some
surface damage to a suit, but otherwise, you'd hardly notice

the
fastest winds on Mars, which have less energy than a mild

breeze on
Earth.

That's an interesting point.

Conversely, the slightest breeze on Venus is equivalent to a

hurricane on Earth.

Although you'd probably not be worrying about the force of the

wind so
much as the fact that it consisted of 800° sulfuric acid!


Fahrenheit?
Hang your head in shame.


Not that the units really matter at that point. 800 has a nice ring

to
it. But if you prefer, we could go with 800 K, which is pretty close
to the mark.


On Mars, - 40 degrees would not be an unusual temperature. C or F
does not matter in this case, but it cannot be K. :-)
  #15  
Old March 26th 17, 12:49 AM posted to sci.astro.amateur
Mike Collins[_4_]
external usenet poster
 
Posts: 2,824
Default Mars flyover from orbiter images.

Paul Schlyter wrote:
On Fri, 24 Mar 2017 09:19:33 -0600, Chris L Peterson
wrote:
On Fri, 24 Mar 2017 14:46:15 -0000 (UTC), Mike Collins
wrote:


Chris L Peterson wrote:
On Fri, 24 Mar 2017 06:17:28 -0700 (PDT), "Chris.B"
wrote:

On Friday, 24 March 2017 01:13:18 UTC+1, Chris L Peterson

wrote:

I'm not sure a dust storm on Mars poses much risk to someone

on the
surface. The dust grains themselves could be abrasive and do

some
surface damage to a suit, but otherwise, you'd hardly notice

the
fastest winds on Mars, which have less energy than a mild

breeze on
Earth.

That's an interesting point.

Conversely, the slightest breeze on Venus is equivalent to a

hurricane on Earth.

Although you'd probably not be worrying about the force of the

wind so
much as the fact that it consisted of 800° sulfuric acid!


Fahrenheit?
Hang your head in shame.


Not that the units really matter at that point. 800 has a nice ring

to
it. But if you prefer, we could go with 800 K, which is pretty close
to the mark.


On Mars, - 40 degrees would not be an unusual temperature. C or F
does not matter in this case, but it cannot be K. :-)


He was writing about Venus.


  #16  
Old March 26th 17, 02:01 AM posted to sci.astro.amateur
Chris L Peterson
external usenet poster
 
Posts: 10,007
Default Mars flyover from orbiter images.

On Sat, 25 Mar 2017 23:49:20 -0000 (UTC), Mike Collins
wrote:


On Mars, - 40 degrees would not be an unusual temperature. C or F
does not matter in this case, but it cannot be K. :-)


He was writing about Venus.


Yes, but he was comparing another place where two different
temperature units could be used for the same value.
 




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