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#776 Re: Science, Technology, and Astronomy » Idea: Give the ISS a hab AND an ERV - Kill three birds with one stone » 2004-07-17 20:05:19

How long can a space shuttle soak in space? 

One reason (of several) why the ISS can't maintain a full crew compliment is a lack of sufficient escape capability.  When a space shuttle is on hand, ISS can have ten people floating around inside, but when the space shuttle leaves, seven of them have to go home.  If we could just leave one up there, running off of ISS power supply and on standby, that would be useful.

How long can a space shuttle be left docked with the station and still be relied on for re-entry?

#777 Re: Intelligent Alien Life » Aliens Shmaliens - ...why not ask THE question?? » 2004-07-16 11:58:26

Shoot.  We already knew this.  Every MIB fan knows that supermarket tabloids are the best investigative reporting on the planet.   :sleep:

#778 Re: Science, Technology, and Astronomy » ESA:  Move an Asteroid - ...Sancho & Hidalgo/"Don Quijote" » 2004-07-16 11:35:22

But they might be giants, and that makes all the difference!  :laugh:

Seriously, the sheer extent to which spanish literature is maimed and rewritten to find an excuse for the name is an argument against this mission.  Surely they know that Don Quixote's faithful squire should come riding up _after_ the damage is done...   roll

#779 Re: Intelligent Alien Life » Methane based life forms » 2004-07-15 15:50:08

For all we know, a primitive civilization of intelligent beings could exist on Titan today.  The first analysis capable of telling otherwise began mere days ago with the arrival of the Cassini probe.

The only thing we have to suggest otherwise is a series of assumptions about biochemistry.  A long series of assumptions.

#781 Re: Science, Technology, and Astronomy » Everything but the water » 2004-07-15 15:19:11

Actually, it's easier to just leave out the minerals rather than make filters deal with them.  Thus, the only mineral in the water from standard US life support systems is tincture of iodine.

Yuck!  tongue   No wonder the Russian water tastes better.

#782 Re: Life on Mars » ammonia in mars atmosphere - mars express found it » 2004-07-15 13:58:09

Well, well, the little space probe that could!   big_smile

If the halflife of gaseous ammonia in the Martian atmosphere is really as short as this article implies, it should be relatively easy to find out where it's coming from.  (Surely a single cloud of it can't circumnavigate Mars in a few hours.) 

Volcanoes aren't everywhere.  If the ammonia is everywhere, then there are only two possible explanations for it:

1) the halflife is dramatically longer than predicted.

2) life.

#783 Re: Human missions » Europe goes to the moon and Mars! - Human space flight.... » 2004-07-14 15:06:40

Hmm...

The claim was made earlier that $10 billion US of NASA's budget is spent on the Space Shuttle and International Space Station.  That leaves NASA about $5 billion for other projects.  As long as NASA is tightly saddled with Shuttle and ISS, that $5 billion seems a better indication of NASA's capabilities than the $15 billion gross value, of which 66% arrives already spent.

I don't think $3 billion compares too unfavorably to $5 billion.

#784 Re: Human missions » A Night in the Hab - ...and your neighbor snores LOUDLY » 2004-07-13 15:53:13

See?  Another problem solved through engineering.

Just don't use that wimpy polyvinyl pipe.  You want aluminum or really heavy gauge PVC.   :;):

#785 Re: Human missions » The Kerry Factor - John Kerry's Views of PlanBush » 2004-07-13 14:44:58

Of course, Bush might get some help again from the massively confused nose-picking/booger eating voters down in a state I won't mention by name (orange groves) like he did last time.  tongue

--Cindy

Take it from someone who lives in a state where Huey Pierce Long is a folk hero: Every state has its booger eaters.

Florida just came to attention in 2000 because of its potential for statistical advantage in a very tight race.  There is no evidence to indicate that nose picking is more prevalent per capita there.

#786 Re: Human missions » Cloth Diapers - Yes...you heard me right -- Diapers. » 2004-07-13 07:35:48

I believe we were discussing child care for Marsian settlers. 

... which inspired a discussion of diapers and laundering diapers...

... which led naturally enough to a discussion of hazardous waste.

#787 Re: Human missions » Cloth Diapers - Yes...you heard me right -- Diapers. » 2004-07-12 13:11:16

You know, that's a good point.  There are no hazardous waste disposal professionals on Mars.  This means there are no hazardous waste handling licenses on Mars.  Which in turn means that Marsians will need to know what is actually physically harmful for them to handle and not just what they're forbidden to touch by law.

The mercury from your example, is most immediately toxic in its water soluble chemical compounds and not in the pure form that your brother was playing with.  Same with lead.  But either metal will eventually oxidize into toxic forms if left in a landfill, so both are regulated as hazardous materials in any form here in the States.  Since that isn't a resonable expectation on Mars, I wonder if the US environmental regulations would apply to a US colony there?

#788 Re: Human missions » Cloth Diapers - Yes...you heard me right -- Diapers. » 2004-07-11 12:56:06

Risk of death in childbirth - for mother or baby - is fairly high when without recourse to modern fetal monitoring, surgical techniques, etc.  It's about 5% - relatively high for something people do as a normal part of their lives.  Prior centuries' birth mortality rates in excess of 25% were due to poor sanitation and other easily controlled factors unrelated to the presence or absence of a doctor.  But if you want to get rid of that last 5%, you need medical support on call. 

About the prevalence of disease:
I think vaccines played a role in eliminating them from developed countries, but I think the most important thing was sanitation.  Draining swamps, modern sewage treatment, clean drinking water -- these are what really led to better health.

Yes, control of disease vectors is what we really have to thank for modern disease control.  If you're 150 million kilometers from the closest disease vector, vaccination isn't worth the risk. 

However, vaccination is one such control mechanism for disease vectors.  It should not be utterly neglected, any more than mosquito spraying or washing your hands.

#789 Re: Martian Politics and Economy » Well why not? - (...my "constitution") » 2004-07-10 15:09:24

I foresee that bathtub gin will become a thriving martian industry...

#790 Re: Human missions » A Night in the Hab - ...and your neighbor snores LOUDLY » 2004-07-10 11:00:15

Rebuild the HAB - it should come with a full toolkit - and solve the problem through engineering.

Walls can be insulated.  Bedrooms can be moved.  Restraints can be rigged. 

It could be a source of fun for the crew.

#791 Re: Human missions » The Kerry Factor - John Kerry's Views of PlanBush » 2004-07-10 10:22:57

Hello All.

Yes, Cobra, I'll admit it.  My primary motivations in deciding to vote the Kerry ticket in the US Presidential race are: 1) I believe that the conduct of President Bush's cabinet and administration in general has been reprehensible for no good reason too many times, and I can't just give approval for more of the same; 2) Kerry appears to be breathing OK and is officially registered to run for president; and 3) I can't abstain again and go another four years without any moral justification to complain about the president.  I just can't do it!  I don't side with the commies or the libertarians, and only agree with 8.5 out of 10 key Green Party values.  That leaves Kerry.

If you have a better candidate-that's-not-Bush, I'm open to suggestions.

Shaun and Cindy, I agree that problems with social structure are increasing in the world at large, and not just in our own countries.  The causes are related to overpopulation with a correspondingly increased ease of travel and communication.  No, homosexual marriage isn't a symptom of overpopulation; society could adapt to one such change.  But today we have billions of people requiring millions of such changes.  It's no surprise that some institutions, like marriage, just can't change to keep up as smoothly as we'd like.

#793 Re: Human missions » The Kerry Factor - John Kerry's Views of PlanBush » 2004-07-09 10:37:47

I know Kerry isn’t the best possible choice.  But I know he’s better than Bush.

Judging by your post it seems you feel he's better than Bush. There's a difference.

All (Okay, most) of the pro-Bush arguments are weak, flawed, or both.

And there are no pro-Kerry arguments, only anti-Bush arguments. Rhetoric, mostly.

No, I can't give you as much as I'd like to in the way of pro-Kerry arguments.  However, a sufficient number of anti-Bush arguments DOES make a pro-Kerry argument.

Personally, I'm going to cast my vote mostly on local issues, such as which candidate gives my favorite answer to questions like "How likely am I to be hauled in for checking out my local library's copy of BushWhacked! ?" and "How long can the cops throw me in the hole with a pair of panties on my head before they have to let the district attorney know where I am?"  My favorite answer is an authoritative, unqualified "NEVER!", preferrably given from loudspeakers and later cast in a stone monument.  But that hasn't been forthcoming from the Bush administration.

#794 Re: Human missions » The Kerry Factor - John Kerry's Views of PlanBush » 2004-07-08 16:24:34

Years ago, here in Louisiana, we had an election for governor in which the main candidates were Buddy Roemer (our unpopular but relatively straight-laced governor), Edwin Edwards (our popular but known to be crooked former governor, who later went to prison on an investigation begun eight years before the election), and David Duke (a known former Grand Dragon of a Ku-Klux-Klan splinter group, who also later went to jail for tax evasion and bilking his bigot buddies).  Roemer was so unpopular that he didn’t make the run-off, so we were left voting for either Edwards or Duke. 

This led to the amusing campaign slogan: “Vote for the Crook.  It’s Important.”

That’s rather the way I feel about the Bush vs. Kerry situation.

I know Kerry isn’t the best possible choice.  But I know he’s better than Bush. 

The vigorous support for USAPATRIOT Act is just one of many problems I have with the current US administration.  (FYI: Real patriots don’t need an act.)

So, I’ve finally made up my mind to vote for the Waffler.

It’s important.

PS. Cindy can wait till the next election.

#795 Re: Not So Free Chat » Settle Tau Ceti? - 12 light years isn't that far folks. » 2004-07-08 15:34:12

True. 

And you'd want to pick some dim little star, too.  Preferably something not even visible to the naked eye.

"Save the Earth!" is too catchy a slogan for the opposition.  You'll want to avoid that. 

"Save Zilwickie 2359-8999 19!" sounds like more of an international phone number than a planet.

#796 Re: Human missions » The Kerry Factor - John Kerry's Views of PlanBush » 2004-07-08 14:58:50

Ok, I've thought long and hard about this, I think I'll vote for Cindy.

We should start our own political party. 

It's too late to register Cindy to run for US President or Senate in the coming national election, but the good news is we won't need a criminal background check.

Just wait till 2008.  Hillary Clinton's got a thing or two coming!    :angry:   

Cindy for President!  :realllymad:
Cindy for President!  :realllymad:
Cindy for President!  :realllymad:

:laugh:

(Note: At the time of this posting, Cindy has neither confirmed nor denied her candidacy - the mark of the consumate modern political strategist...)

#797 Re: Not So Free Chat » Settle Tau Ceti? - 12 light years isn't that far folks. » 2004-07-08 14:48:13

You mean you're not even going to name the poor lil' ol' Jupiter-class planet before you blow it to smithereens?   ???

#798 Re: Martian Politics and Economy » Well why not? - (...my "constitution") » 2004-07-08 14:39:40

Just allow polygamy/polyandry and marry your inlaws, too!

:laugh:

#799 Re: Human missions » Cloth Diapers - Yes...you heard me right -- Diapers. » 2004-07-08 13:42:03

My wife had two of our children at home, the second one unassisted.  Just me, her, and our baby -- beautiful.  Our baby has never seen a doctor, never been poked with a needle, never been vaccinated, never been happier!

Not for us! 

My wife has already informed me to have the drugs ready and she's not even pregnant yet.  I quite agree with her, and if she didn't want any I'd appreciate it if the doctor would ask me next. 

Having just been through a preventable illness with a child in my care, I don't see the value in leaving the child open to another.  Please don't get me wrong: children need to build immunity on their own.  Too little exposure to infectious material is just as bad as too much.  Every child should have a little taste of dirt every day.  However, the list of illnesses preventable by vaccine isn't so long that it makes a difference to their overall health.  Children are going to get sick whether vaccinated or not.  I simply find it worth the expense to know that it isn't diptheria.

#800 Re: Human missions » Cloth Diapers - Yes...you heard me right -- Diapers. » 2004-07-07 08:16:19

Regarding washing clothes:

Some compromise will be needed, true.  Not washing will only save weight during the shorter transit times.  If you can get working fluid (water or liquid CO2) without a weight penalty, it makes more sense to wash regularly over long term missions.

I believe that on the ISS, they currently use the no-wash approach _and_ dispose of the clothing afterward.  Wasteful!

Regarding potty training:

I wasn't aware that children could start potty training before they could even lift their heads.  However, it does make a great deal of sense to start as early as possible.  I say, if that kid can successfully crawl to the toilet, it's time to begin.   :;):

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