Moon Dust Threat?

See this link:

http://www.moondaily.com/reports/Wat...ndust_999.html

Looks like the Space 1999 Eagle Pad is out, (2001 dome covered elev.
pad is in, (LOL)). I have seen the camera on display, (but never read
about the study refer. to in this article).

Have a great day,

Carl

surfduke wrote:
See this link:

http://www.moondaily.com/reports/Wat...ndust_999.html

Looks like the Space 1999 Eagle Pad is out, (2001 dome covered elev.
pad is in, (LOL)). I have seen the camera on display, (but never read
about the study refer. to in this article).

Have a great day,


They may have to build a wall around the landing pad to catch the dust
being blown around or construct a slid metal landing pad in the shape of
a shallow bowl to vector the exhaust upward as the vehicle lands.
There's another problem here they didn't mention...the exhaust gas
itself isn't going to slow down after leaving the engine bell, and is
going to hit the lunar surface at full exit velocity from quite a ways
up; so you could be blowing dust all over the place from several
thousand feet up on approach to the landing site.
What you definitely don't want is a astronaut outside being sandblasted
as a vehicle descends or lifts off.

Pat

This is a problem/opp., that will merit further study for sure. What
about the prop. to bury the structures in lunar soil? You still have a
point with the poor fella walking on the surface during a landing
nearby. The fact that this study, (and evidence), exist should be
enough to shut up the "We faked it town clowns". I wonder if the laser
reflectors had any damage after the depart of the LEM upper section?

On a sep. note, I wonder if the RTG's left on the surface would merit
recovery for refurb./reuse?

Carl

surfduke wrote:
This is a problem/opp., that will merit further study for sure. What
about the prop. to bury the structures in lunar soil?

That does lick the radiation and micrometerrite threat in one fell
swoop, as well as helping the insulation properties against the extremes
of the lunar night and day's temperatures.

You still have a
point with the poor fella walking on the surface during a landing
nearby. The fact that this study, (and evidence), exist should be
enough to shut up the "We faked it town clowns". I wonder if the laser
reflectors had any damage after the depart of the LEM upper section?


What this could really play hob with are lunar outpost concepts that
rely on solar cell arrays or mirrors focused on a closed cycle heat
driven generator for their power needs.

surfduke wrote:

See this link:

http://www.moondaily.com/reports/Wat...ndust_999.html


And there's the issue of keeping moondust out of the lungs of
astronauts. When they go back inside after spending all day digging
around the outpost on the Moon, and come back in all dirty. Then the
dust falling off the suits as the astronauts undress once under air
pressure. It'd be a bit like breathing that dust and grit (containing
micro shards of window glass and gypsum sheetrock just after 911 at
Ground Zero in NYC).

robert casey wrote:
surfduke wrote:

See this link:

http://www.moondaily.com/reports/Wat...ndust_999.html


And there's the issue of keeping moondust out of the lungs of
astronauts. When they go back inside after spending all day digging
around the outpost on the Moon, and come back in all dirty. Then the
dust falling off the suits as the astronauts undress once under air
pressure. It'd be a bit like breathing that dust and grit (containing
micro shards of window glass and gypsum sheetrock just after 911 at
Ground Zero in NYC).

They're quite concerned about that also.
Maybe they can use some sort of high pressure air hose to blow the dust
off the suits and recycle the air from the airlock back through a filter
and into the hose again,, until all the dust is trapped in the filter
rather than on the suits or interior of the airlock.
It would take two astronauts to do it right, but I assume just like in
skindiving they'd use a buddy system for EVAs rather than going outside
solo.
Electrostaticly charging the filter would also let the dust stick to it
better and speed things up.

Pat

"Pat Flannery" wrote in message
...
Maybe they can use some sort of high pressure air hose to blow the dust
off the suits

Why not stand outside and let the vacuum suck it off?

:P

Pat Flannery wrote:
They're quite concerned about that also.
Maybe they can use some sort of high pressure air hose to blow the
dust off the suits and recycle the air from the airlock back through
a filter and into the hose again,, until all the dust is trapped in
the filter rather than on the suits or interior of the airlock.
It would take two astronauts to do it right, but I assume just like
in skindiving they'd use a buddy system for EVAs rather than going
outside solo.

An automated astronaut wash - smallish booth, first a dust-off, then
some gentle bristled rotating brushes, and perhaps some spray-wax at
the end to keep things shiny When/if water gets really abundant
perhaps a hosing-down in there somewhere followed by an air-dry.
PA/radio plays "Carwash" while all this happens.

Sounds like fodder for another NASA challenge.

rick jones
--
Process shall set you free from the need for rational thought.
these opinions are mine, all mine; HP might not want them anyway...
feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH...

"Scott Hedrick" wrote in message
...

"Pat Flannery" wrote in message
...
Maybe they can use some sort of high pressure air hose to blow the dust
off the suits

Why not stand outside and let the vacuum suck it off?

:P

Ok smarty, and where would you plug in the vacuum cleaner?

It's not like 120V is common on the Moon.






--
Greg Moore
SQL Server DBA Consulting Remote and Onsite available!
Email: sql (at) greenms.com http://www.greenms.com/sqlserver.html

n Tue, 27 Nov 2007 02:20:09 +0000 (UTC), Rick Jones
wrote:

An automated astronaut wash - smallish booth, first a dust-off, then
some gentle bristled rotating brushes, and perhaps some spray-wax at
the end to keep things shiny When/if water gets really abundant
perhaps a hosing-down in there somewhere followed by an air-dry.
PA/radio plays "Carwash" while all this happens.

....Nah, there's a cheaper way - just hire a bunch of those bums on the
corner who step out and try to wipe your windows for a buck.

OM
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