Scott Lurndal wrote:
Serigo writes:
On 9/30/2016 9:22 PM, Cryptoengineer wrote:
http://www.spacex.com/mars
that presentation does not have serious depth of thought in it,
I think it did. The talk did not cover all aspects of an interplanetary
civilization, just the transportation to and the basic requirements for a
self-sustaining colony on Mars; look how long it took to talk about that in
great detail alone. But I bet SpaceX is working on the other aspects, too.
it is a marketing pitch to capture government funds which float and pay
for his other companies, Tesla and SolarCity.
Nonsense. FUD.
It does not address RADIATION at all,
Musk addresses the radiation issue in the Q&A section after the talk.
Basically he says that it is not a problem with a little shielding.
nor food, nor water,
That is not SpaceX’s main department, but that of other players.
NASA is already working on self-sustaining environments. For example, the
air conditioning and sanitation systems on the ISS is amazing, there are
chemical toilets on the planet already (the “Burning Man” guy asking about
the prospect of “****ty Mars” in the Q&A section obviously did not know
that), and they are successfully growing “space salad” on the ISS:
http://www.telegraph.co.uk/news/science/space/11795131/Astronauts-declare-first-space-salad-awesome.html
nor how to wash clothes in space.
Really, who needs clothes in a climate controlled spacecraft?
A climate-controlled spacecraft that could be punctured by a micrometeorite
any moment. Besides, astronauts/passengers are people, too, with a natural
pudency.
Washing clothes: As e.g. NASA astronaut Karen Nyberg, and CSA astronaut
Chris Hadfield demonstrated in a video, respectively, astronauts can wash
their hair and brush their teeth in microgravity with little effort. [1][2]
I can see no great difficulty washing clothes in space in a washing machine
designed for microgravity once you have it there (I think the main problem
is designing it and bringing it there). Only maybe more of the precious
water can be saved by developing alternative washing techniques; AIUI from
my practice, for washing clothes the clothes only have to soak up water,
then the washing agent has to dissolve in the water to get the dirt and
sweat out of the threads, and then the soapy, dirty water has to be removed.
Certainly this can be done in space. But probably the best way to solve
this problem would be using special threads in the clothes that cannot get
dirty or sweaty in the first place. [3]
[1] https://www.youtube.com/watch?v=uIjNfZbUYu8
[2] https://www.youtube.com/watch?v=3bCoGC532p8
[3] https://www.thethreadsmiths.com/
https://youtu.be/rSM2eUDm-84
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