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#176 Re: Not So Free Chat » Whistling Past the Graveyard? - Seems this "little problem" is ignored » 2003-07-15 17:00:39

I believe there will always be a few who won't screw around Espically if that is an option, in places like the US of A.  If some don't screw around then it is almost certian that they will not get HIV or AIDs. . .long live absentinice. . .

Sex is not the only way people contract HIV.  It is less likely but always possible to get contact with HIV from other sources, more specifically in the Health Care field.

#177 Re: Not So Free Chat » The Tunguska Explosion - What was it? » 2003-07-15 10:02:46

I do not want to be a complete ass, but I have never read something that was quite so mistaken on the nature of RF energy or Static Electricity.  I had always heard it was an Air-Burst meteorite.

#178 Re: Not So Free Chat » SETI@HOME->NEWMARS - Discussion - newmars seti@home team » 2003-07-15 09:54:52

goto Seti at Home and download the applicable program. 
the graphical is kinda neat but takes between 5-10 times longer to process work-units.  All you do is download it and place it in a directory, then run it.  I run the Command Line on my laptop and desktop.  Laptop can get them in occasionally under 4 hours, desktop under 3 hours per work-unit.

#179 Re: Not So Free Chat » SETI@HOME->NEWMARS - Discussion - newmars seti@home team » 2003-07-14 05:57:25

How many people on this forum would be interested in a New Mars Seti@Home team?  I am sitting aroun 600 work units, so no that many.. I get about 50-60 done a week.

#180 Re: Interplanetary transportation » Weight reduction to reduce fuel need. - weight reduction over greater ISP » 2003-07-13 22:17:38

Thanks Robert,  Do you have any good links for some of that info or any sources?

#181 Re: Interplanetary transportation » Weight reduction to reduce fuel need. - weight reduction over greater ISP » 2003-07-12 23:07:41

Well, just in the different types of steel and ways of forming it, you get some incredible strength differences.  I also imagine you are talking about forged instead of Cast.  Forged steel is much stronger.  It should be possible to get unique steel alloys in space.  but I would say there is atleast a 20-40 fold difference in strength between the different blends and alloys of steel.

#182 Re: Human missions » Why haven't we left for Mars? » 2003-07-11 11:15:45

With the geologic history of Mars being farely slow, a very high resolution photo survey, or, albiet it me to say it, a manned geologic expidition will be able to prove it by stream sedimentation. even without a tide, there will still be wave, these waves will create sandstone sedimintation in such a pattern that is easily recoginable, looks like sand dune only and inch across.  I have seen examples in Wisconsin that are 1.9 billion years old.  The water question will answer itself upon signifcant investigation either byt .25" resolution camera(yes we have the technology) or by manned flight investigation.

#183 Re: Civilization and Culture » The Case Against Space Colonization - Chime in » 2003-07-09 10:23:42

My understanding of this thread is to get our 'ducks in a row' as far as space colonization.  While we may be a bit biased towards space exploration/exploitation in some degree or anothoer, I feel we are are apable of forming a more or less unbiased opinion.  I propose that we hammer out an agreement and send it, every to there congressman, and/or other political representitive since we are not all American.  Just a suggestion.

#184 Re: Planetary transportation » Trains on Mars - Could a rail system provide martian need » 2003-07-09 06:19:41

3.adaptable.  it does not take much effort to lay a railroad bed (although if a mining oparation occured, there would be a need for substaintal reinforcement of beds)  and almost any source of energy could be used to propel the train. .the tracks do not limit the type of train (except electric) on the tracks!

Wouldn't take that much more to do it from the start!  some sort of tie and gravel would work.

This is a good idea, but it would require infrastructure in place to make it worthwhile.  A moot point until there is a need.  But Rail is the most efficient form of mass transit

#185 Re: Civilization and Culture » The Case Against Space Colonization - Chime in » 2003-07-08 22:51:31

The other thing is that now, the corporations involved have recovered hundreds of tons of pure diamond in a single shot, will the diamond mines compagnies and the diamond market survive that ?
Clark suggested to counterbalance the lost of value of diamond on earth by trade agreements, which I am not sure I understand the technicality, because why a russian consortium of private compagnies, for example, running on their own money, should pay a tribute to competitors producing diamond in south africa ? I think the earth producers will just have to lower their price or disapear, this is the rule of capitalism.

Well,  there could also be Earth import Tariffs by the world bank and such.  Countries have been doing it for years.  There is also laws in place in the United States on products such as Sugar and Dairy products to help keep thos industries alive in every state.  Of course the black market might go up.  I really doubt that the price of Diamonds would drop substantial.  I don't even know if it would be possible to find an Asteroid big enough to have diamonds, since they take about a billions years to form in nature under lots of pressure and heat.  I don't think that the ability to get products in mass will significantly reduce the price on Earth, but for Consumers in orbit or on the moon it may be a different story.  If you could get something from an Asteroid, it would require less Delta-V then to send it from Earth, so over time, it would be less expensive then sending it from Earth.  Wouldn't that be true.

#186 Re: Human missions » Why haven't we left for Mars? » 2003-07-08 00:14:12

Maybe NASA isn't as dumb as it looks!       by Shaun Barrett

Hmm, must be a coincidence..   tongue

#187 Re: Not So Free Chat » Anyone else looking forward to August 27th? » 2003-07-07 23:54:35

I will probably miss it, thats in the middle of monsoon season here in Korea!

#188 Re: Civilization and Culture » The Case Against Space Colonization - Chime in » 2003-07-07 19:34:36

1) I've read that even if "we" could discover an asteroid of pure gold, it would still be cheaper to exploit gold on earth (with today's space technology).

Well, I agree with this statement, in such that you keep in mind Todays technology.  But as we continue to develop technology, I expect a drop in price of Space Transportation.  In 100 to 150 years, even with current snail paced development, I see us in a position to be doing some sort of 'Exploitation' of the moon.  The reason I use Exploitation is to represent all non Science based space activity. 

Also,  with companies like Space Island Group and Lift Port Inc. I feel we are beginning to cross the thresh-hold of corprate viability of Space for other then Satellite use.  In other words, we may be a little closer to Space Hotels and such.  I do think these companies are a bit overly ambitious, but I hope that one of two things don't happen.  Which would be Iridium revisited, or some sort of massive scam.  With current attitudes and developements, I think there will be people in Space on a permanent basis by the end of the 21st Century.  By permanent, capable of being born, living and dieing their whole life in Space.

#189 Re: Science, Technology, and Astronomy » Fixing Galileo - Galileo » 2003-07-07 04:49:34

Galileo fix!

Cool article on how the tape recorder was fixed on galileo

#190 Re: Science, Technology, and Astronomy » Cassini - Anyone heard of this? » 2003-07-06 22:06:22

OLD NEWS ON CASSINI

Thats a link that talks about the problem with Huygens to Cassini relay communications.  Has problems compensating for Doppler Shifts in Tx and Rx frequencies.

Sight issues

I believe this one has worked out, but there was some lens fogging issues.

Other then that..  Looks good.  Look at Galileo, it had some issues, but still had a very succesful mission.  I think Cassini Will turn out the same way.   We are batting 5/5 though with our long range probes.  There just must be something about MARS!!!!

#191 Re: Interplanetary transportation » Weight reduction to reduce fuel need. - weight reduction over greater ISP » 2003-07-06 03:35:32

I know the Aerospace industry has been at the forefront of exotic alloys and new matrix and carbon based construction.
Sometimes a fresh idea is a good one. 

Simply put.  Are the materials currently used for space travel the lightest availble at a given cost, and to translate that, if you save 5 lbs on a given payload/satellite, will it net you a savings in cost?

Also, by taking advantage of current chip technology, storage technology, and memory technology, that would lend to reduce space taken up, and possibility for more redundant equipment.

Does anyone else think that this could help, or have other ideas along these lines?

#192 Re: Civilization and Culture » The Case Against Space Colonization - Chime in » 2003-07-06 02:41:26

As most people are on this site, I find myself an extreme advocate of Space Exploitation.  Personally I find it to be an imperative that we increase our foothold into space beyond LEO and Geo-Synch Orbit.  To do this it will take an investment of money, time, and personnel.  Yet, something that this thread has pointed out, being the Devil?s Advocate, is that we should not pull money from one program to ensure that our program does move along at a faster rate.  So, it leads us into a paradox of sorts. 

As long as we have a minimal space budget, I do not believe there will be any major breakthroughs or extreme Apollo like missions in the near future.  We have to achieve a balance in the budget that would allow more progress; but, not compromise other unrelated programs that are important.  That can be accomplished carefully, with the write scrutiny in place.

Some steps that may help, that we are seeing at this time, are the increase of the privatization of Space.  More companies are taking the hefty investment required to do business that is only possible through the use of space, be it LEO or utilization of the Clarke belt.  This does not necessarily help Space travel though.  This is a mere derivative of Space travel.  The one factor this may help with is bringing about less expensive access to Space.  Unfortunately, I don?t see it being in the heavy-lift category which is the current void that needs to be filled.

Another factor that may lead to some cost reductions and further breakthroughs are programs like the X-prize.  If the X-prize is won, and further more challenging competitions arise, it may help fuel smaller companies involvement in Space Access.  While more expensive then time of Charles Lindberg and Amelia Arehart; this could fuel future research, and help to capture the imaginations of another generation.

We can never look away from the Military.  The military has always had a keen interest in Space, as well it should.  It is not impossible that there will be some increase in military projects that deal with Space.  The United States Air Force has committed itself to transition from an Air Force with Space capability to a Space Force with Air Capability.  While I do not desire for the military to be the ground breaker in new territory, I will take what we can get. 

Basically, my point is that instead of instantly saying we have to pull billions out of the budget from programs that may aid poor or underprivileged individuals, there may be other ways.  I am happy with an increase in human activity in space.  I support Zubrin?s view of Space Exploration, but in the same sense, we should not ?rob Peter to pay Paul.


big_smile

#193 Re: Science, Technology, and Astronomy » Cassini - Anyone heard of this? » 2003-07-05 22:12:13

Cassini Launched in 1998 or 1999, will arrive in Saturn orbit in a year or so. Is not 100% functional though.

#194 Re: Not So Free Chat » Sept 11 is now poltician's tool of control - Manipulation, illegal and unethical » 2003-07-05 21:39:49

prometheusunbound Posted on July 03 2003, 22:27

10,000 people in south america die of starvation every day.

With a population of around 400 million, I find this hard to believe.  Specifically since the death rate in South America is 6.75 per 1000.  Your quoted starvation rate is 9.125 per 1000.  This is quoting a study done by Iowa State University.

I find it hard to believe there is a higher rate of Starvation then Death.

#195 Re: Civilization and Culture » The Case Against Space Colonization - Chime in » 2003-07-05 06:56:19

I have a few points I would like to throw out.  These aren?t aimed at anyone in particularly? Really? 

-If we mine the asteroids, won't we be doing it robotically?  No life support systems etc. So, from logic, one would presume that mining on Earth would also be done robotically.  So no workers would be displaced, save a few robot technicians, since they had been displaced earlier.  I imagine by this time, robot maintenance technicians will be in demand. 

-50+ Billion going into a new industry (colonization) would create lots of middle class jobs.  Middle class people consume a higher proportion of there income then upper class, and have more money to spend then the lower class.  This money is then spent again, by the middle class and giving to businesses which make more... etc. This would be good for the economy.  In all reality we live in a Pseudo-Global Economy, our economy affects others.  Like the earlier Tennis Shoe comment. 

-From the Leftist, feed the children in the starving country of 1$ GDP, point of view.  If you drive a car that costs more then $1000, you are a hypocrite.  This argument should attack more then just the Space Program, but a good portion of Capitalism and Americanism as a whole.  It's nice to think about the wouldn't it be nice if we could...

-If we make some sort of economic Viability out of a multi-billion dollar mission, that is a start.  I don't see us getting to Mars before 2020.  I imagine the cost of LEO will drop by at least a factor of 2 by then.  (Will see if LiftPort.Com is a retagged early 80s Savings and Loan scam).

-Bottom Dollar.  The USA is the only nation right now that could do it on our own.  (ESA and European Union could, but then there is France)  Being a Republic, if someone with a bit of Charisma, who isn?t named Adolph, could spur a majority of Support for a program like this, I believe the whole argument becomes null and void.  Then what I would do is open it up, allow other people to participate.  ETC.   But if we have the money, we shouldn't spend it if we don't want to?  When you bought you computer, did it pop into your mind, you could probably feed a few kids in Africa for a year?


???

#196 Re: Human missions » We need to promote the manned Mars trip as ONE WAY » 2003-07-05 01:05:51

I have a slightly different perspective on this, but will make a point.  I think there would people who would love to goto Mars for an extended period of time. (saying extended opposed to permanent) Lets say 4 years.  This would be tremendous for research in a number of areas.  But you would need more then 8 people.  You would need two qualified Doctors, two qualified maintenance technicians, etc.  Of course people can be rdundant, but you need two in case one dies!.  As far as food goes, I think by the time we would do something like this or are going to Mars period, that will be resolved.  Hell.  We can grow food under light, so send a Big RTG or a small reactor with them, all the light they need.  I think this is an interesting idea.  But there is some detail work that needs to be dealt with. Other then that.  I think it could work.

#197 Re: Not So Free Chat » American Moon Base prediction... - tell me what you think » 2003-07-02 10:08:27

A flight version would be capable of generating power levels of about 110 watts by using a radioisotope heat source to drive thermoelectric power converters to create electric power.


My main experience is Satellite Communications, working ground stations with high gain antennas..  I also have worked with Super high bandwidth Common Data Link Terminals.  This is not very much power.  Unless I am missing something big here.  That is barely enough power to power up a super low power Traveling Wave Tube or Klystron.  So, I must be missing something.

#198 Re: Terraformation » no real reason to terraform - title say's it all » 2003-06-30 13:43:29

Just a thought.  We will alter the Martian Atmosphere no matter what we do.  There will be more heat put into the system, and no way about getting aroun emissions.  While not as direct as Terraforming per say.  If we goto Mars we will alter the Climate even if it is a very minor scale.  By the time we get to Mars, on a larger scale other then a few astronauts, with a few flags, look at some rocks for a few months then go home.  When we make a permanent Colony on Mars, we will be much more capable of Adjusting the Climate to something more hospitible.  (Note: The first time a European was on North America in known History was ~1000 CE, the second was ~ 1492 CE) Hopefully it won't take so long for the moon, but look at the difference in Technology.  I think we have already experienced the same amount of Technological shift in spacecraft since Apollo, at least with Capability, but I am going off topic.  I think that this issue will be moot.  By the time it will become and Issue, it will be easier to do then we think!

#199 Re: Life support systems » Another Power System on Mars... - Bio-Generator » 2003-06-27 22:57:12

Ok, I have to make a smart ass post real quick..  has anyone else had flashbacks from Mad Max, Beyond Thunderdome?



Ok.  I just had to say that...

#200 Re: Not So Free Chat » Good books you've just read » 2003-06-26 06:39:13

I have been all ove the place recently.

I have read

Entering Space, by Zubrin
Paramedics by Canning
some books on Buddhism
and Eiger Sanction (adapted into a Clint Eastwood Movie)

I will probably re-read a Pale Blue Dot soon, and when Return of the King is out in the Theatres I will re-read those books.

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