|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Could a human walk on Titan's surface?
Given current spacesuit technology, how long
could a person survive on the surface of that moon? -Rich |
#2
|
|||
|
|||
-290F deg? Not very long, if Huygens survived only a few hours.
JS "RichA" wrote in message ... Given current spacesuit technology, how long could a person survive on the surface of that moon? -Rich |
#3
|
|||
|
|||
RichA wrote: Given current spacesuit technology, how long could a person survive on the surface of that moon? -Rich that's a question for NASA space suit people! my guess is that a person couldn't last long in a 'current' suit. the extreme low temperatures would be one factor, the other more dramatic ones being unpredictable surface density (seems the probe landed on a crust over a slushier material) and whatever the atmosphere might do. A suit could probably be designed with current technologies to do the job though, it would be getting someone there over a 7 year period that would be more difficult (as well as bringing the person back!) |
#4
|
|||
|
|||
wrote in message oups.com... RichA wrote: Given current spacesuit technology, how long could a person survive on the surface of that moon? At -180°C, a few minutes maximum... then you froze and if you don't slip on organic matter frozen you will be asphyxiated :-(( Thierry http://www.astrosurf.com/lombry/titan-brumes.htm -Rich that's a question for NASA space suit people! my guess is that a person couldn't last long in a 'current' suit. the extreme low temperatures would be one factor, the other more dramatic ones being unpredictable surface density (seems the probe landed on a crust over a slushier material) and whatever the atmosphere might do. A suit could probably be designed with current technologies to do the job though, it would be getting someone there over a 7 year period that would be more difficult (as well as bringing the person back!) |
#5
|
|||
|
|||
"Thierry" . wrote in message ...
wrote in message oups.com... RichA wrote: Given current spacesuit technology, how long could a person survive on the surface of that moon? At -180°C, a few minutes maximum... then you froze and if you don't slip on organic matter frozen you will be asphyxiated :-(( well now, Moon suits must have been designed to work in -200 F degrees, with probably some margin Just In Case, are these really going to be useless on Titan? |
#6
|
|||
|
|||
Algomeysa2 wrote:
"Thierry" . wrote in message ... wrote in message oups.com... RichA wrote: Given current spacesuit technology, how long could a person survive on the surface of that moon? At -180=B0C, a few minutes maximum... then you froze and if you don't slip on organic matter frozen you will be asphyxiated :-(( well now, Moon suits must have been designed to work in -200 F degrees, with probably some margin Just In Case, are these really going to be useless on Titan? While it gets that cold in the shade on the Moon, the vast majority of the moonwalkers time was spent in the sunlight, at closer to +250 degrees. The suits were white to reflect most of the radiation, and the internals included a "liquid cooled garment" to remove excess heat from the astronauts. Suits designed for Titan would need heat generators. --=20 JJN |
#7
|
|||
|
|||
While it gets that cold in the shade on the Moon, the vast majority of
the moonwalkers time was spent in the sunlight, at closer to +250 degrees. The suits were white to reflect most of the radiation, and the internals included a "liquid cooled garment" to remove excess heat from the astronauts. Suits designed for Titan would need heat generators. --=20 JJN Also...being surrounded by a "cold" vacuum isnt nearly as bad as being surrounded by a cold gas... trying to keep warm in a vacuum vs a dense atmosphere is like trying to keep warm in cold air vs cold water.... being in titans dense and chilly atmosphere would suck the heat out pretty fast...but I would be surprised if decent insulation and a heat source couldnt keep a titan vistor warm take care Blll |
#8
|
|||
|
|||
Algomeysa2 wrote:
"Thierry" . wrote in message ... wrote in message oups.com... RichA wrote: Given current spacesuit technology, how long could a person survive on the surface of that moon? At -180°C, a few minutes maximum... then you froze and if you don't slip on organic matter frozen you will be asphyxiated :-(( well now, Moon suits must have been designed to work in -200 F degrees, with probably some margin Just In Case, are these really going to be useless on Titan? The difference is that on the moon you are in vacuum, heat exchanges only rely on radiation, which is a very ineffective way of exchanging energy. In that case this is a plus of course, vacuum provides excellent thermal insulation. That is far from being the case on Titan where heat transfer will be dramatically accelerated by the contact with the atmosphere. And the moon or space suits at least will require far more power than what's needed in vacuum. -- francois meyer http://dulle.free.fr/alidade/galerie.php?maxim=12 |
#9
|
|||
|
|||
"BllFs6" wrote in message
... While it gets that cold in the shade on the Moon, the vast majority of the moonwalkers time was spent in the sunlight, at closer to +250 degrees. The suits were white to reflect most of the radiation, and the internals included a "liquid cooled garment" to remove excess heat from the astronauts. Suits designed for Titan would need heat generators. --=20 JJN Also...being surrounded by a "cold" vacuum isnt nearly as bad as being surrounded by a cold gas... trying to keep warm in a vacuum vs a dense atmosphere is like trying to keep warm in cold air vs cold water.... being in titans dense and chilly atmosphere would suck the heat out pretty fast...but I would be surprised if decent insulation and a heat source couldnt keep a titan vistor warm take care Blll -Just an observation- I brought and read many books to work all relating to the different sciences of astronomy and physics and someone asked a question about space, I don't recall the specific question but it mentioned the vacuum of space. I stated as a matter of fact that he should be thinking the other way around, Space is not a vacuum, planets and stars are just points that have higher pressure then outer space. I'm positive that I'm right but yet I see people here and other space related places that should know better suggesting space is a vacuum. So, am I right and if so why do the people that should know better don't know better? And, If I'm wrong, could someone enlighten me why? -- Michael A. Barlow |
#10
|
|||
|
|||
Michael Barlow wrote:
"BllFs6" wrote in message ... While it gets that cold in the shade on the Moon, the vast majority of the moonwalkers time was spent in the sunlight, at closer to +250 degrees. The suits were white to reflect most of the radiation, and the internals included a "liquid cooled garment" to remove excess heat from the astronauts. Suits designed for Titan would need heat generators. --=20 JJN Also...being surrounded by a "cold" vacuum isnt nearly as bad as being surrounded by a cold gas... trying to keep warm in a vacuum vs a dense atmosphere is like trying to keep warm in cold air vs cold water.... being in titans dense and chilly atmosphere would suck the heat out pretty fast...but I would be surprised if decent insulation and a heat source couldnt keep a titan vistor warm take care Blll -Just an observation- I brought and read many books to work all relating to the different sciences of astronomy and physics and someone asked a question about space, I don't recall the specific question but it mentioned the vacuum of space. I stated as a matter of fact that he should be thinking the other way around, Space is not a vacuum, planets and stars are just points that have higher pressure then outer space. I'm positive that I'm right but yet I see people here and other space related places that should know better suggesting space is a vacuum. So, am I right and if so why do the people that should know better don't know better? And, If I'm wrong, could someone enlighten me why? It is all relative. And compared to the atmosphere of Titan, interplanetary space definetely is a vacuum; while it is not if compared to intersidereal space, which is not a vacuum if compared to intergalactic space... http://www.findarticles.com/p/articl...07/ai_20517887 -- francois meyer http://dulle.free.fr/alidade/galerie.php?maxim=12 |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
WORST CASE SCENARIO | charles vind | Misc | 22 | October 22nd 04 10:19 PM |
GLOBAL EMERGENCY ON PLANET EARTH--GLOBAL HOLOCAUST | charles vind | Misc | 8 | October 14th 04 11:55 AM |
Apollo | Buzz alDredge | Astronomy Misc | 5 | July 28th 04 10:05 AM |
The Apollo Hoax FAQ | darla | Astronomy Misc | 15 | July 25th 04 02:57 PM |
Breakthrough in Cosmology | Kazmer Ujvarosy | Space Shuttle | 3 | May 22nd 04 09:07 AM |