Reserve your copy now! <http://www.moviesonline.ca/movienews_6139.html> Fred Kiesche (FPK3) My books are water; those of great geniuses are wine. Everybody...
If it's true that it's very expensive to boost materials and foodstuffs from earth (or any gravity well/planet), then I propose that it would be far cheaper to...
... to lunar ... defensive 'weapon'. I do believe they call this an O'Neill Colony. :) The trick is to build it from lunar materials, which are cheaper to...
What? You're expecting an argument? On this list? I don't know about anyone else, but this is exactly the kind of thing that I would love to see. Too bad the...
... He'll get one from me. :> ... foodstuffs from ... be far ... Here's the underlying hitch. In order to have a large number of people in space who need to...
... The trick is the quantity of raw materials which you need to boost from earth in order to build such a habitat. Once you have it, it is a cheaper source of...
Hmm. Sounds like a bootstrap problem. What is the minimum tool set needed to build the infrastructure? Can we build the infrastructure on the moon and catapult...
... Also the construction cost. This is a big piece of civil engineering - conceptually equivalent to a bridge, 3 km long by 5 km wide, plus the end caps, and...
In 2004, world production per hectare for rice reached 3.96 Mt - a new record. The growth rate has been declining, still I'm willing to suggest 5 Mt/ha per ...
... I remember a family of four could be fed on an acre in medieval Britain. However, here... http://dieoff.org/page40.htm Suggests that it takes 1.2 acres per...
Greetings: Well, you've described, pretty much, the L5 Society/Gerard K. O'Neill system (other than the solar power satellites). Take a look at the two David...
Greetings: I'd also recommend a look at several of Niven's earlier "Known Space" (earlier in the chronology, not necessarily when they were written) tales that...
pi 3.141592654 radius 500 metres height 5000 metres Surface Area 15,707,963.27 sq metres 15,707.96 sq km I just double-checked my math: 15,707,963 sq mt or...
My math skills suck, sometimes, especially when jumping back and forth between metric and non-metric. Let's use a different method instead. Current estimates...
G'day, The biggest issue would be getting the system ecologically stable in the first place. If you don't then you'll be shipping up fertiliser etc and in...
... new record. Thanks! Does Mt = metric ton? ... Mt/ha per ... able to have ... At least in principle the cycle should be almost perfectly closed - nutrients...
... That sounds very high to me, though I can't cite direct information. Great Britain has a land area of about 230,000 km2, and the population before the...
... (controlled ... Which is my gut feeling, especially presuming a lift-to-orbit technology that allows a space population of several thousand people. -- Rick...
... gotta feed ... Pretty much yes! But this discussion implies not just "humans" in space, but LOTS of them - several thousand. That implies lift-to-orbit...
Ultimately it is a question of biomass savings, and that is a question of how much conversion of sunlight energy to biomass is there? Everything else had to ...
... Assuming you're going to have thousands of people in orbit, you want to give them a regenerative biosystem, which means you've got to have plants...
... In space, might it be cheaper to crack oxygen back out of CO2 by brute force, rather than bioregeneration? (I have no idea; I'm just tossing this out.)...
Just in time for the new book! <http://www.movie-trailers.com/weber/Honorpedia/honorpedia.html> Fred Kiesche (FPK3) My books are water; those of great geniuses...
... Well, you'll have some system loss if you just crack the CO2; not all of the oxygen we use goes into CO2 (some of it goes into water; some of it goes into...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
