Re: Space travel by humans is not possible now

Fred J. McCall wrote:
jacob navia <jacob@xxxxxxxxxx> wrote:
:No explanation where the power for maintaining such a huge temperature
:difference will come.
:

Because it's not a bloody problem. Insulation plus nuclear or stored
solar or fuel cells or...


Nuclear? Nothing less than a nuclear reactor in Mars.
"Stored solar or fuel" cells ?

Solar cells do not provide enough energy for maintaining a
temperature delta of more than 100 Centigrade in Mars.

Mars is much further away from the sun than earth.

"Stored fuel cells" do not last for a year of continuous
use.

These are fact but... who cares about facts?

Again, as has been explained to you over and over and over again, this
is *NOT*, repeat ****NOT****, the insurmountable barrier your lunacy
keeps putting it forward as.


Magic McCall will save the day then.

:> :> Again, not a big deal. Hell, you don't even need 'fuel'. Ever heard
:> of nuclear power? :
:This is a typical "McCall argument". Just throw some keyword without
:even bothering to think about the consequences!
:
:A nuclear reactor is of course a very lightweight technology, you put
:one in your spacesuit and there you go...
:

Strawman. Who said anything about a spacesuit? We were talking about
a VEHICLE.

:
:The problems associated with building a nuclear reactor in Mars,
:maintaining it there etc, are just "engineering problems"
:as he would say.
:
:It is almost comic.
:

It sure is. Did 'build it on Earth and take it with you' not occur to
you?



Yeah. Just like that. We build a nuclear reactor on
Earth, then we build a rocket of a size good enough
to put a NUCLEAR REACTOR in Mars, then we fire it,
well insulated in a huge spaceship (like the one
Buck Rogers hat) and that is it. Problem solved!


:
:> I guess a rover can't work, either, given all that
:> fuel they must carry. And yet they rove.
:> :
:Using solar energy. This will not work (as I stated in a previous
:message) for such huge requirements like life+support. The sun
:doesn't give enough energy for powering all that.
:
:And he continues, without ever advancing any argument.
:

Who said anything about that? I merely pointed out the obvious (to
everyone but you): that 'moving' doesn't required a million pounds of
fuel.


Not a million, no, but surely you will need a lot of fuel to
carry your life support around. You need to avoid freezing
to death in the night, so you need a system that maintains
70 Centigrade delta in the day, and 120 Centigrade delta
in the night. To carry around all the oxygen/atmosphere
recycling support, food, water, etc.
:

I note you offer no cite, no support, and engage in artful editing
into the bargain. You make claims with no support that make no sense
and then demand people act as if you've put forward serious arguments.

--------------------------------------------------------------------------------------
http://www.globeandmail.com/servlet/ArticleNews/TPStory/LAC/20040124/SPACE/TPHealth
Mars mission faces a hurdle: Astronauts may arrive paralyzed
By IAN POPPLE UPDATED AT 6:11 AM EDT Saturday, Jan. 24, 2004

--------------------------------------------------------------------------
Surviving Space: Risks to Humans on the Moon and Mars
By Robert Roy Britt Senior Science Writer posted: 06:00 am ET 20 January 2004
http://www.space.com/scienceastronomy/mars_dangers_040120.html
--------------------------------------------------------------------------
Cosmic rays may prevent long-haul space travel
15:01 01 August 2005 NewScientist.com news service Rob Edwards
http://www.newscientistspace.com/article.ns?id=dn7753
---------------------------------------------------------------------------
National Research Council report:
Safe on Mars
http://www.astrobio.net/news/modules.php?op=modload&name=News&file=article&sid=1432&mode=thread&order=0&thold=0
------------------------------------------------------------------------
Potential cause of rapid kidney stone formation in astronauts on space travels
News-Medical.Net Posted By: News-Medical in Medical Study News Published: Monday, 14-Feb-2005
http://www.news-medical.net/?id=7745
-------------------------------------------------------------------------


--
jacob navia
jacob at jacob point remcomp point fr
logiciels/informatique
http://www.cs.virginia.edu/~lcc-win32
.

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