Re: Space travel by humans is not possible now
- From: Fred J. McCall <fmccall@xxxxxxxxxxxxx>
- Date: Tue, 22 Jan 2008 21:20:31 -0700
jacob navia <jacob@xxxxxxxxxx> wrote:
:Fred J. McCall wrote:
:> jacob navia <jacob@xxxxxxxxxx> wrote:
:>
:> :Ian Parker wrote:
:> :> I want to move hundreds of kilometers. I want to move out of the
:> :> Meridian Planum. To do that you require agility. AI is needed to avoid
:> :> obstacles. This AI is the sort of AI that we saw driving round Las
:> :> Vegas. I want to be cable of moving at Las Vegas type speeds on Mars.
:> :>
:> :
:> :Yes, that is possible with robots driving slowly. For faster speeds you
:> :can send a balloon and travel dozens of kilometers per day. The balloon
:> :would inflate in the day, and stop in the night.
:> :
:>
:> Or you can send men and travel more than "dozens of kilometers per
:> day" and not be just flying over stuff at random and ignoring
:> everything between touchdowns.
:>
:
:Men CAN'T TRAVEL IN MARS.
:
Well, not without digging, at any rate.
:
:As I have explained to you over and over again, they need a VERY heavy
:life support system, that maintains a temperature differential of more
:than 100 Centigrade between the Mars surface and the insides of their
:home.
:
And 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.
:
:The HUGE energy requirements needs an isolated "home" for them, that can
:be heated to the right temperature without too much loss. This implies
:absence of windows since they would lose too much heat when outside is
:-100 Centigrade.
:
Poppy***! I guess Gemini and Apollo and the Shuttle couldn't have
windows, then. And yet they do.
:
:The equivalent in earth would be to maintain a temperature as in the
:hottest Sahara desert in a house in the south pole.
:
:Warming is (of course) only ONE of the requirements of the life
:support system. THEN there is breathing, i.e. humans need oxygen
:that doesn't exist in the marsian atmosphere. So they have to carry
:an oxygen producing and maintaining circuit. The CO2 must be
:eliminated too. Add that to the "vehicle".
:
Go look up the numbers. This is pretty much nothing, given a vehicle
to carry it around for you.
:
:Then, humans need food, and waste disposal. If they are going
:in a field trip they would need a VERY heavy vehicle, that would
:take a LOT of energy just to move around. They can't go just
:in spacesuits since at night they would FREEZE OVER in a few hours.
:
And they can't dance in their underwear, either. So far there is
nothing convincing at all about your 'argument' (and I use the term as
loosely as possible, since you've done nothing to support your claims
other than to use uppercase words).
:
:All this makes completely IMPOSSIBLE to use a balloon. You would
:need an enormous and heavy vehicle in MARS.
:
Who the hell would want to use a balloon?
:
:Another problem is fuel. Since there is no oxygen, they would need to
:carry the oxidant AND the fuel.
:
Again, not a big deal. Hell, you don't even need 'fuel'. Ever heard
of nuclear power? I guess a rover can't work, either, given all that
fuel they must carry. And yet they rove.
:
:Another interesting problem is the radiation level. Because of the thin
:atmosphere, the Mars surface is bombarded with highly energetic
:particles that make rocks radioactive. Humans need to be shielded
:from that.
:
Horse manure! Cite?
:
:Since the vehicle is so heavy that it is impossible to fly, they have
:to drive. The problem is, such a heavy vehicle can't easily be supported
:by the mostly sand marsian surface and would sink or make heavy tracks
:in the terrain.
:
Preposterous claim!
:
:A light robot like spirit or opportunity could get free from the
:treacherous sand. Not so with such a heavy vehicle that would be
:needed to carry the human's life support!
:
:There are no highways in Mars. No roads that could support a very
:heavy thing rolling around. Traveling by surface would be much
:SLOWER than a lightweight robot or a robotic balloon.
:
Ridiculous assertion!
:
:And yet another interesting problem: The redundancy and spare parts of
:the life support system would stay at the "home base". The humans
:can't go VERY far away from the spare parts since they would risk dying
:at the first problem with the life support system.
:
Stupid remark!
:
:And these are the most evident problems. Other problems aren't even
:mentioned.
:
:I repeat:
:
:HUMANS can't move in Mars.
:
I repeat:
You're an IGNORANT GIT who LIES at the drop of a manned space idea.
--
"False words are not only evil in themselves, but they infect the
soul with evil."
-- Socrates
.
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