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GENERAL DISCUSSIONS
The Need for a Frontier...
Tuesday, July 18, 2006 5:59 PM
NANITE1018
Tuesday, July 18, 2006 7:34 PM
Tuesday, July 18, 2006 7:41 PM
CALIFORNIAKAYLEE
Tuesday, July 18, 2006 8:08 PM
Wednesday, July 19, 2006 2:07 AM
PIZ
Quote:Originally posted by nanite1018: You know, the whole idea in Firefly of Earth getting "used up" and people being forced to leave and colonize space is inevitable if we don't destroy ourselves first.
Wednesday, July 19, 2006 5:02 AM
CYBERSNARK
Wednesday, July 19, 2006 5:21 AM
MSG
Wednesday, July 19, 2006 8:21 AM
Quote:Originally posted by msg: I wish I could send him to explore space.
Wednesday, July 19, 2006 8:50 AM
Quote:Originally posted by Piz: Quote:Originally posted by nanite1018: You know, the whole idea in Firefly of Earth getting "used up" and people being forced to leave and colonize space is inevitable if we don't destroy ourselves first.I disagree with much of what you wrote. It's not at all inevitable that Earth will get used up. Just one example: there's a lot of new science that strongly suggests that oil is a renewing resource - it's constantly being produced, and in quantities that will always exceed our use of it. The planet is not even beginning to come close to the start of the edge of overpopulation, and the most reliable forecasts suggest a large downward trend in population over the next few centuries. In economics, there's no such thing as a zero- or negative-sum game, unless irrational brakes are put on human achievement and innovation by repressive governments. Without such brakes, wealth is always expanding: in the U.S. at least, even the poorest people today live better than the kings of just a few centuries ago, and there's no justifiable reason why prosperity like that can't spread across the globe if people are just left to, as Mal said in the BDM, "go [[]their[]] way." As for physical frontiers, there is the ocean, but, again because of governmental restrictions, we are largely prevented from entering that realm. The same is true for vast areas of land that have been declared off-limits to humans - yes, there are still many, many places we could be expanding into on land, but the laws don't allow it. In space, with ventures like Virgin Galactic, we're finally seeing the birth of private space exploration. The best thing that could possibly happen on that front is for the government to get the hell out of the way and let it happen. The accomplishments would be beyond anyone's present ability to imagine them. Consider the advances in computers and the internet - the government regulated almost none of that, and who just twenty years ago could have guessed the wonders we have now? Leave people free and they accomplish great things. Finally, there are huge opportunities in what I'll call "intellectual" frontiers. Some of the possibilities of technology have already been mentioned, and there are many, many more. There's also a philosophical revolution that needs to take place, one that puts the freedom of the individual at the center of all moral and political decisions. That's the only way to achieve the kind of freedom for everyone that someone like Mal Reynolds is fighting to achieve for himself. Fortunately, the right philosophy must eventually win out, because only a philosophy based on actual reality can ultimately survive, since reality and not Man always has the final say. How long it will take there's no way to tell, and there will be fits and starts, advances and setbacks, but long, long term there's no other possible outcome. Mal's descendents-in-spirit will have the sky, and no one will even want to take it from them. -- "That's what government's for: get in a man's way." - Mal
Wednesday, July 19, 2006 12:20 PM
Quote:Originally posted by nanite1018: Yes it is. Inevitable i mean.
Wednesday, July 19, 2006 1:58 PM
CITIZEN
Quote:Originally posted by Piz: Just one example: there's a lot of new science that strongly suggests that oil is a renewing resource - it's constantly being produced, and in quantities that will always exceed our use of it.
Quote:The planet is not even beginning to come close to the start of the edge of overpopulation, and the most reliable forecasts suggest a large downward trend in population over the next few centuries.
Quote:In economics, there's no such thing as a zero- or negative-sum game, unless irrational brakes are put on human achievement and innovation by repressive governments. Without such brakes, wealth is always expanding: in the U.S. at least, even the poorest people today live better than the kings of just a few centuries ago, and there's no justifiable reason why prosperity like that can't spread across the globe if people are just left to
Quote:governmental restrictions
Quote:Fortunately, the right philosophy must eventually win out, because only a philosophy based on actual reality can ultimately survive, since reality and not Man always has the final say.
Wednesday, July 19, 2006 4:45 PM
Thursday, July 20, 2006 3:44 AM
Thursday, July 20, 2006 8:21 AM
ALCON
Thursday, July 20, 2006 8:51 AM
Quote:Originally posted by Alcon: Hey Nanite, I'm about to disagree with you on a couple of things, but before you jump on me: I agree we should go to space. Agree so much that I'm currently training to become an Aerospace Engineer and make it happen. However, some of your ideas I've been over and have substantial problems in em: I'll start with O'Neill Colonies. They have a substantially sized following among space enthusiasts, however they are extremely impractical. Think about it, why in the heck would we move all that material off a planet (which takes a huge amount of energy) when we could just build on the planet itself? The answer is we shouldn't. It'd be cheaper and better to just burrow into the ground and build down there. The moon has just as much access to solar power as an O'Neill colony would and better protection from radiation by burrowing. The only things that would be different would be the gravity (1/6th g's instead of a generated 1 g) and the mobility (but why in the world would you build a drive into an O'Neill colony anyway? If it's any decent size then you won't be able to propell it anywhere at any speed with out using more weight of fuel than the weight of the entire colony with out the drive!) It is far cheaper, more efficient and just better to simply build on the moons and worlds that exist rather than try and build whole new ones. Even more reason to simply build on the existing worlds: we could start now, we have the technology. The manned Mars mission they are currently considering could be used to start a colony. Here how: When they go to Mars the base they use gets left behind. Its capable of supporting five people for several years. When they go again they bring a new one. Again, it gets left behind. Each time they bring a new one, eventually they'll have a colony capable of supporting hundreds of people. The plan was written by Robert Zubrin and others (who's a fanatic, don't get me wrong, but his plan is a good one). The one NASA is considering has been rather modified from it, but the basic idea is the same. If you want to know more about it, check out the Wikipedia article: http://en.wikipedia.org/wiki/Mars_Direct Now as to the orbital solar arrays: no go. Beaming the energy down to Earth you would lose all the advantages of gathering it from orbit. Not to mention that lack of need for structural support, launching the arrays into orbit in the first place would be prohibitively expensive. Its not practical and not worth it. A far better course to travel would be fusion/fission. Fusion is nearing breakeven. The next generation of reactors may pass it. Fission has gotten a whole lot safer (we're talking 100s of times safer) and cleaner since the days of Chernoble (which was a flawed design in the first place anyway) and Three Mile Island (which was more a success story than a failure, the safety mechanisms by and large worked). The radioactive waste we create isn't a whole lot more radioactive than the fuel that went in. The Earth is full of radioactive stuff so really it's not that big a deal. We just need to find a subduction zone (the one in the ocean would work) lower them down (not just dump) and make sure they get sucked back into the Earth. Problem solved. So if we need energy we should go the way of building Fission to replace as much coal as possible now, and work on Fusion. As soon as Fusion is feasable build Fusion reactors. As to the issue of do we need to go to space? Yes! Of course we do! Even if the Earth wasn't starting to groan under our weight we should go to space. Just becuase there's a whole universe out there waiting for us to explore, how can we not? What are we doing sitting on one little rock when we could be spreading life across the cosmos, learning, building and meeting who knows what beyond our wildest imaginations! Yes there's a big hump to getting off the planet right now, but once we're over that hump, once we get established out there its smooth sailing. We just need to push over it. I have more to say on the topic, but I'm sleepy right now and starting to not make sense, so I'm gonna stop.
Thursday, July 20, 2006 8:58 AM
Thursday, July 20, 2006 1:05 PM
Thursday, July 20, 2006 1:37 PM
KANEMAN
Thursday, July 20, 2006 1:53 PM
Quote:Originally posted by kaneman: I have also heard that when they stop pumping oil from a well and go back at a later date its full again...
Quote:As we all know now "fossil fuel" is an out dated word. Oil doesn't come from dead dinosaurs and trees. Bury a cat in your back yard...keep looking no oil!...
Quote:I believe oil is constantly created in the inner earth. A byproduct of plate tectonics? Has anyone else heard this...Don't recall where I heard this...Kind of made sense to me.
Quote:We have been told for years that we will be on the decline of the oil production curve...But that keeps getting revised..."By the year "blank" we will be out of natural gas"...Then it gets changed?
Thursday, July 20, 2006 3:12 PM
Thursday, July 20, 2006 4:24 PM
Quote:Originally posted by citizen: Quote:Originally posted by kaneman: I have also heard that when they stop pumping oil from a well and go back at a later date its full again...This hasn't actually happened, I defy you to bring up an account. As I said this is largely from the Eugene Island wells, which are, I might add, now on a steady decline. Quote:As we all know now "fossil fuel" is an out dated word. Oil doesn't come from dead dinosaurs and trees. Bury a cat in your back yard...keep looking no oil!...
Thursday, July 20, 2006 4:56 PM
ROCKETJOCK
Quote:Originally posted by Alcon:-- Three Mile Island (which was more a success story than a failure, the safety mechanisms by and large worked).
Quote: The radioactive waste we create isn't a whole lot more radioactive than the fuel that went in. The Earth is full of radioactive stuff so really it's not that big a deal.
Friday, July 21, 2006 5:20 AM
Friday, July 21, 2006 5:42 AM
Quote:Originally posted by kaneman: Just went online. From what I'm reading about this debate..Is that the abiotic view is backed by 50 years of scientific data...The renewable fossil fuel opinion is based on no data period..Called an "eighteenth century relic" that we in the west have grasped onto. There seems to be no debate in the eyes of the Scientific community only for journalists, tree huggers, and alarmists. The scientific community has known oil is produced deep in the earth out of crystalline basement rock....They have found and have been pumping it for years we just never hear about it. All data used to support a "Peak oil" argument goes on the assumption oil is made from decaying organisms close to the earth's surface. And I repeat there is no Scientific evidence to back it up.zero..Fossil fuels is a theory. It appears an out dated one at best. As for US oil peaking in the 70s...There hasn't been a refinery built here since when...You guessed it the 70s. coincidence? If you can't drill and can't refine = decline in production.
Friday, July 21, 2006 7:13 AM
RABBIT2
Friday, July 21, 2006 10:25 AM
Quote:Originally posted by Rabbit2: The biggest hurdle to overcome before space colonisation becomes a reality is the fact that, to date nobody has managed to build a life support system that is totally closed. Yes, we can keep people alive in orbit almost indefinately provided we keep resupplying them with food and air but that method is only workable as far as the moon. Mars is a LONG way from Earth if something critical (like a `catalyser`} breaks down or you find that you`ve introduced something in to the colony ecosystem thats going out of control. -------------------------------------------------- Flight Instructor: Son, know what the first rule of flying is? Me: Don`t crash?
Friday, July 21, 2006 11:13 AM
Friday, July 21, 2006 2:48 PM
Friday, July 21, 2006 3:26 PM
Saturday, July 22, 2006 12:17 AM
Quote:Granted, we've tried it with Biosphere 2 and whatnot. But those weren't very large. And technology is getting far better. Plus, their approach was kind of retarded. Mini-ecosystems? Come on. Doesn't make any sense. Why wouldn't you use bioengineered algae to weed out the pollutants (we've got bacteria and algae that can eat pretty much any pollutant, even toxic waste and oil!) in the water, and use algae or photosynthetic bacteria to produce oxygen and scrub CO2 from the air? We can do far better than they did. We only need a little bit of practice (probably not much at all).
Saturday, July 22, 2006 3:46 AM
Quote:Originally posted by citizen: Well we seem to have some hardcore capitalist purists around these parts, people who believe nothing is worth doing unless it makes money. While colonisation of space costs money and merely ensures the survival of the species it's just not worth doing. In the short term there's no profit in the continued survival of our species, and in the long term the money's already been made, so who cares . I'd remind people that before they talk about private space exploration those private companies are not interested in space exploration but exploitation. At the moment that means satellites and trips into low Earth orbit. If NASA or another space agency put colonies on the Moon, Mars or developed technologies to exploit extra terrestrial resources private companies would exploit them, perhaps even make them profitable, but they WILL not come up with them. There's no money in exploration unless you find something, then the money is in what ever you find, not the exploration itself. Space exploration is also on the grand scheme fairly low return on your investment, far better to let someone else (like NASA) to do the actual exploring, then step in and make all the money from whatever has been found. This is how it is, has been and always will be done. More insane ramblings by the people who brought you beeeer milkshakes! No one can see their reflection in running water. It is only in still water that we can see.
Saturday, July 22, 2006 3:49 AM
Quote:Originally posted by Rabbit2: Quote:Granted, we've tried it with Biosphere 2 and whatnot. But those weren't very large. And technology is getting far better. Plus, their approach was kind of retarded. Mini-ecosystems? Come on. Doesn't make any sense. Why wouldn't you use bioengineered algae to weed out the pollutants (we've got bacteria and algae that can eat pretty much any pollutant, even toxic waste and oil!) in the water, and use algae or photosynthetic bacteria to produce oxygen and scrub CO2 from the air? We can do far better than they did. We only need a little bit of practice (probably not much at all). Actually,Biosphere 2 was a good experiment that taught us some of the things NOT to do when setting up a life support system, it was`nt quite the failure the media tended to lable it as. You `re right about using bioengineered algae and bacteria but you are also going to need controls on them otherwise (to use Biosphere 2 as an example) you end up with your colonists spending all their time scraping algae off the windows to allow their food plants to get enough sunlight. Yes we need practice with this, preferably someplace where you dont get killed if something goes wrong. -------------------------------------------------- Flight Instructor: Son, know what the first rule of flying is? Me: Don`t crash?
Saturday, July 22, 2006 3:59 AM
REAVERINA1985RIVIERA
Quote:Originally posted by Rabbit2: Yes we need practice with this, preferably someplace where you dont get killed if something goes wrong.
Saturday, July 22, 2006 4:16 AM
Quote:Originally posted by nanite1018: Well there is already evidence of enormous profit to be had from asteroids.
Saturday, July 22, 2006 4:33 AM
Quote:Originally posted by citizen: Quote:Originally posted by nanite1018: Well there is already evidence of enormous profit to be had from asteroids.And who found that out? NASA? Who will create the technology to exploit it? NASA, ESA or similar organisations. Then the corporations will step in, exploit it and moan about unfair government regulation making it harder for THEM to explore... Corporate Capitalism won't save space exploration, it'll stagnate it. More insane ramblings by the people who brought you beeeer milkshakes! No one can see their reflection in running water. It is only in still water that we can see.
Saturday, July 22, 2006 4:36 AM
Saturday, July 22, 2006 5:22 AM
Saturday, July 22, 2006 11:21 AM
Saturday, July 22, 2006 11:44 AM
SIRIUS
Saturday, July 22, 2006 12:01 PM
Quote:Originally posted by Sirius: My opinion is that NASA and other space agencies really need to start playing with that idea. Move the outdated and crumbling space station to a fixed position on the moon. And from there launch to Mars (so far). Or even send a probe to Mars with say some seeds, water, etc. Needed for plant life. Monitor it and see if it grows. If it takes off, then there is then a potential for the beginning of an atmosphere. It will take some time to establish and atmosphere, and I dont know what Mars atmosphere consists of now but plants need nitrogen and carbon dioxide to grow thus expelling oxygen through photosynthesis. Also the current space ships are outdated and are falling apart. The need for a new space ship is needed. Also, there needs to be some sort of boost to the energy system to make space travel faster. It already takes a probe some years to get to its mission and having a person on board would take even longer due to the resources to sustain that person(s). This is just what im thinking and im sure im totally wrong on some aspects.
Sunday, July 23, 2006 5:22 AM
Sunday, July 23, 2006 10:23 AM
Sunday, July 23, 2006 1:14 PM
Monday, July 24, 2006 6:46 AM
Quote:Anyway, why can't THAT ever happen?
Monday, July 24, 2006 11:45 AM
Tuesday, July 25, 2006 5:06 AM
Tuesday, July 25, 2006 8:14 PM
Quote:Originally posted by nanite1018: Maybe Rutan and Branson will do something. But they don't seem as ambitious as i'd like. They only have real plans up to orbit. And even the orbital part is pretty shaky. Only if the suborbital flights prove profitable. Hey, maybe though. You never know.
Wednesday, July 26, 2006 5:51 AM
Quote:Originally posted by Rabbit2: Quote:Originally posted by nanite1018: Maybe Rutan and Branson will do something. But they don't seem as ambitious as i'd like. They only have real plans up to orbit. And even the orbital part is pretty shaky. Only if the suborbital flights prove profitable. Hey, maybe though. You never know. At the moment though, they seem to be in the best position to do something. Most of the other private groups seem to be big on ambition but severely lacking in funds. Once they get the suborbital passenger flights going and if it turns out profitable then we might see more companies trying to break in to the market and willing to fund other projects. I`ve lost any confidence in the big national space agencies to deliver on the manned spaceflight front. They are all largely dependant on funding from politicians who always have their own agenda so things always end up takeing longer and costing more. It might be a good idea to have another X prize, this time for the first privately owned spacecraft to orbit the earth. Or even have a series of prizes that set out a number of goals to aim for. -------------------------------------------------- Flight Instructor: Son, know what the first rule of flying is? Me: Don`t crash?
Wednesday, July 26, 2006 6:25 AM
Wednesday, July 26, 2006 7:02 PM
Quote:Originally posted by Rabbit2: Its the small groups that need the encouragement most since that`s where most of the new ideas and innovation usually comes from. The bigger companies and other orginisations have to much interest in the status quo. Setting up some smaller prizes with more easily achivable targets might help here and, who knows perhaps lead to Mars long before NASA is likely to try. -------------------------------------------------- Flight Instructor: Son, know what the first rule of flying is? Me: Don`t crash?
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