Clearly this is a generic requirement, Ueli, bearing in mind the dependency on water in these systems. In gravity fields, convection serves to circulate the...
I have been thinking about mining oxygen at the upper edge of our atmosphere. Then I recently came onto a paper proposing that. It was in the AIAA September...
I was looking for something else after catching up with some other things and noticed I did not finish responding. I have not studied the Sputnik 2 Laika dog...
Yes I finally got to go back and see the rotor with no boom. It acts as I would expect. The hammer like habitats are turned to give maximum drag in the...
There are no thermal heat flows without gravity. On Earth if you strike a match the hot expanding flame goes up drawing new oxygen air in at the bottom. In...
Yes, as I stated, Jim, gravity drives convection. In the case I cited, we could use pressure differentials in a jacket to create water jets with sufficient...
Hi Jan, The ESAs ATV a viable alternative to the shuttle? Maybe, if they manage to put crew in there. What is really stunning is that they throw this all away,...
Jim, I am intrigued by the water freezing ideas you are mentioning here. I guess you mean water "would freeze at the poles" of a large tank orbiting Earth that...
Hi Jim, Hm, trawling oxygen in the upper atmosphere? Well, there would have to be a number of technologies that would have to be mastered and we don't really...
The bottle would tend to stay just above freezing. It could have spots that freeze, but unless there was no water movement or some greenhouse effect it would...
My thoughts before reading the article were to have a collecting bucket with special equipment to dip down at the edge of the atmosphere, quickly scoop up and...
Okay Jim, but I don't expect the bottle to freeze on one end and stay liquid at the other end, simply because materials also transfer heat even if they don't...
Okay Jim, so it's a bucket on a cable and not a hosepipe - well, actually probably a molecule pump with a pressurized vessel instead of a bucket. But that...
What I ran across indicates water will freeze about a third of the way from Earth to Mars, but water will very slowly sublime in the vacuum until much colder....
Two points: Have you seen a picture of this or are you assuming that it is using a hosepipe like you describe? I assumed it was scooping oxygen from its own ...
Debi-Lee, I have not seen the picture. Furthermore, I do seem to remember that yes, the idea was something like the ISS being able to collect oxygen at its...
Jim, Hm, that takes getting used to: You mean a chunk of water ice out in Jupiters orbit will not sublime into the vacuum of space even when it is exposed to...
Yes I said the one collects the gas about level with the ISS. Oxygen does not burn with itself. Even liquid oxygen will not burn or explode like ozone and...
Yes the sunlight is so weak that is stays frozen solid and harder than steel. Even an occasional cosmic ray normally will not be knocked free. Jim Brown Ueli...
Ueli, I have never been clear on how O2 explodes but I am sure it was the source of the Apollo explosion and I believe it was the source of the discovery of...
It was the oxygen reacting or burning the mostly carbon based things like Velcro strips. clothing, padding, and many things in the cabin at six times normal...
Yes Debi-Lee, What happened in Apollo 1 was a spontaneous combustion between Oxygen and Carbon, which happens when Oxygen is in very high concentration. As for...
Ueli, Thought you might find this exchange interesting, as it has drawn me into considering immediate practicalities, while I am still very much involved in...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the NEAmines group. File :...
NEAmines@yahoogroups....
Mar 13, 2008 9:49 am
1341
Hi all, I've finally managed to put in some time to attempt a first milestone on the LEOstation, based on the discussions we had in the "Habitats" Yahoo. I...
Hi Ueli, as always a robust and declarative summary of the story so far. It has been interesting to follow the processes of elimination that have been gone...
from James Wilson spacetrader.net Lets ask the question the other way, where does it go bang from superheated steam?...
gems@...
Mar 14, 2008 5:24 pm
1344
Close to Venus. Venus has an incredibly powerful greenhouse effect so the surface hotter than an oven on broil, but water would boil in modest pressure. Jim...
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