The SpaceShipOne Thread

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Post by Crayz9000 »

Darth Wong wrote:You seriously think it would be cheaper to go to the asteroid belt (which is reeaaallly far away), knock an asteroid back this way, capture it, mine it, construct refining facilities in space, and then refine it than to simply use existing spacelift technologies to lift refined materials into orbit? Are you on drugs?
No, I'm not on drugs, because I never said that it would be cheaper to go to the asteroid belt and send one back here. That would be insane, even using things like plasma engines (not to mention that it would take fucking forever to accelerate the goddamned rock).

All the sane proposals for asteroid mining that I've read have concerned near-Earth asteroids (as in the ones the media panics about). You wait for gravity to send one this way, and when it gets in range you stabilize its orbit through whatever means. Then you can mine it for whatever purposes you want, or hell, you can just tether it and use it as space elevator ballast.
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Post by Darth Wong »

Crayz9000 wrote:
Darth Wong wrote:You seriously think it would be cheaper to go to the asteroid belt (which is reeaaallly far away), knock an asteroid back this way, capture it, mine it, construct refining facilities in space, and then refine it than to simply use existing spacelift technologies to lift refined materials into orbit? Are you on drugs?
No, I'm not on drugs, because I never said that it would be cheaper to go to the asteroid belt and send one back here. That would be insane, even using things like plasma engines (not to mention that it would take fucking forever to accelerate the goddamned rock).

All the sane proposals for asteroid mining that I've read have concerned near-Earth asteroids (as in the ones the media panics about). You wait for gravity to send one this way, and when it gets in range you stabilize its orbit through whatever means. Then you can mine it for whatever purposes you want, or hell, you can just tether it and use it as space elevator ballast.
Well, then you should not have responded dismissively to my rebuttal of McC's post, which specifically addressed the insane idea of actually flying out to the asteroid belt and hauling an asteroid back here.

As for capturing an asteroid, we would need one to come along with precisely the right velocity for low-energy capture operations to be feasible, and that's pretty much tying the future of spaceflight to the whims of fate. Nope, serious spaceflight is still a governmental concern, Spaceship One's 62mile altitude hop notwithstanding.
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Post by McC »

Darth Wong wrote:And McC's notion of generating commercial profit from asteroid-mining is beyond absurd.
In self-defense, it's not my notion. It was from a discussion I had with a friend of mine. If it's wrong, it's wrong. *shrug*
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Post by kojikun »

We'll make it into space eventually because it will become cheap enough to, via space elevators. Once that happens, I can imagine all sorts of touristy attractions in space that could turn a profit, but thats 50+ years from now.
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Post by SirNitram »

kojikun wrote:We'll make it into space eventually because it will become cheap enough to, via space elevators. Once that happens, I can imagine all sorts of touristy attractions in space that could turn a profit, but thats 50+ years from now.
Yes, let's pin all our future space activity on the pipe-dreams of some people with fullerene tubes. I'm not even sure you can physically construct tubes long enough with current technology.
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Post by Gil Hamilton »

Perinquus:
Another thing to note about the colonization of the New World was not only what you noted, but it picked up also because the Spanish found out what a gold mine the New World was, literally and figuratively, and the Caribbean and meso-America in particular. With the Spanish bringing make metric shitloads of gold, silver, and sugar (in one of my history classes in college the teacher read one of the invoices for a Spanish ship from the pre-colonial period... it was insane what they were carting back), everyone suddenly became really excited about the New World and wanted a piece of the action.

I agree with you that the private sector needs to get involved, simple so there is much less bureaucracy and Random Acts of Congress to worry about. I mentioned this in the other thread on SS1, but originally the Space Shuttle was slated to cost 5.5 million per launch... and due to mismanagment, unforeseen costs, and misappropriation ended up costing 70 times that. Congress has also been known to axe projects where it would have actually been cheaper to finish the project and run it for a few years than it cost to dismantle it. That's no way to run a Space Program.

Oddly enough, this is one of the reasons I supported sending that N'Sync guy into space and also support the idea of sending boy bands into space for zero-g concerts. Broadcast it on TV and the stations would claw over each other in a bidding war to be the station to carry the Hot Young Guys concert and can you imagine the amount of money companies like Coca-Cola pay for an advertising deal? It would be a cash cow. Such a thing would cause Neilsson boxes to explode all across America, especially if hyped right. And once the synchronized null gravity acrobatics and music inflames Americas imagination and lines the pockets of wise investors, companies would be creaming their collective shorts to be involved in the next launch. With such a profit to be had, it wouldn't be long before the technology starts getting really refined and real progress is made.
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Post by Gil Hamilton »

SirNitram wrote:Yes, let's pin all our future space activity on the pipe-dreams of some people with fullerene tubes. I'm not even sure you can physically construct tubes long enough with current technology.
Actually, the latest issue of Discover magazine has a really good article about a group that is working out the kinks on a practical space elevator right now that has got the space community and even a few wealthy investors in the private sector buzzing. It's less a pipe-dream than you think.
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Post by Crayz9000 »

Darth Wong wrote:Well, then you should not have responded dismissively to my rebuttal of McC's post, which specifically addressed the insane idea of actually flying out to the asteroid belt and hauling an asteroid back here.
*shrug* I wasn't trying to dismiss your rebuttal, although it seems it came across that way. I was actually agreeing with you about sending an asteroid back here, but trying to clarify that asteroid mining has its place.
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Post by SirNitram »

Gil Hamilton wrote:
SirNitram wrote:Yes, let's pin all our future space activity on the pipe-dreams of some people with fullerene tubes. I'm not even sure you can physically construct tubes long enough with current technology.
Actually, the latest issue of Discover magazine has a really good article about a group that is working out the kinks on a practical space elevator right now that has got the space community and even a few wealthy investors in the private sector buzzing. It's less a pipe-dream than you think.
Pardon my skepticism; the company schismed at least one before a year of existance. I simply don't see that as lasting.
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Post by Darth Wong »

Gil Hamilton wrote:Oddly enough, this is one of the reasons I supported sending that N'Sync guy into space and also support the idea of sending boy bands into space for zero-g concerts.
I also support sending boy bands into space, but only for the purpose of sending them hurtling into the Sun.
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Post by Admiral Valdemar »

SirNitram wrote:
kojikun wrote:We'll make it into space eventually because it will become cheap enough to, via space elevators. Once that happens, I can imagine all sorts of touristy attractions in space that could turn a profit, but thats 50+ years from now.
Yes, let's pin all our future space activity on the pipe-dreams of some people with fullerene tubes. I'm not even sure you can physically construct tubes long enough with current technology.
You can't, but they're getting there. This time 5 years ago tubes a few micrometres in length were amazing. Now we can do several orders of magnitude better and it's improving all the time.
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Post by kojikun »

SirNitram wrote:Yes, let's pin all our future space activity on the pipe-dreams of some people with fullerene tubes. I'm not even sure you can physically construct tubes long enough with current technology.
I never said pin anything on anything. I'm just saying that thats the best bet so far. Other methods, rockets, aren't going to get us into space cheaply, not for a good long while I suspect. Though SpaceDev's Rubber-N2O rocket is a nice improvement because of its low cost.

And this months article in Discover has nothing to do with the company you reference. The company in the article is, actually, a contractor for NASA. They said in the article that the biggest problem right now is getting fullerene saturation high enough in the cable's polymer binder. So it seems they're quite far along and only need to refine a bit more. It doesn't seem to be a problem with the fullerenes themselves but with their ability to succesfully mix with the rest of the cable. So we're close. Predictions put the first elevator at about 2020, if funding isn't an issue. But this is what I'm getting from articles and company websites. I trust it and have high hopes tho ;)
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Post by kojikun »

Admiral Valdemar wrote:You can't, but they're getting there. This time 5 years ago tubes a few micrometres in length were amazing. Now we can do several orders of magnitude better and it's improving all the time.
The Discovery article had ribbon coming off at a few kilometres length, and it was supposedly very very close to Elevator grade, with certain non-fullerene related differences. It's getting better and better every day.
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Post by kojikun »

Darth Wong wrote:I also support sending boy bands into space, but only for the purpose of sending them hurtling into the Sun.
You could always just send them to my house. I'm sure I could find a few interesting ways to stop them from singing.. :twisted:
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Post by Crayz9000 »

kojikun wrote:You could always just send them to my house. I'm sure I could find a few interesting ways to stop them from singing.. :twisted:
If you could make them choke in the process, and stay that way for about five minutes, I'm all in favor of it.
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Post by kojikun »

Crayz9000 wrote:If you could make them choke in the process, and stay that way for about five minutes, I'm all in favor of it.
Oh they'll choke on something all right..
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Post by McC »

...getting back on topic (sorta...)

Mike, I passed your comments along to the aforementioned friend, and his reply was:
Asteroids would be lucrative because we're scraping the surface of the Earth for heavy metals and the like, when asteroids are made of heavy metals, by and large.

And all I can say is that it is inevitable. If mankind survives, the asteroids will be mined. They'll have to be. It'll almost certainly involve an established base in the asteroids, and travelling work crews that break off pieces that look promising, attach PAM rockets, and give them a nudge downwell to Earth orbit.
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Post by Perinquus »

The_Nice_Guy wrote:It's still not as simple to think that the private market could have done as well as the government, especially just after Apollo. Many of the technologies used right now in Rutan's project had their origins in government projects, and some of these technologies were initiated solely for the purpose of waging war(like guidance systems for ICBMs).
You still are not getting my point. I don't dispute that developing the initial technology was a task so expensive that probably only the government could have done it. Nevertheless, the continued expansion into space will only happen when it becomes profitable. And for that you need private enterprise to get involved. That doesn't require cutting the government out of space exploration entirely. Why do you seem to think that's what I am saying? Let's go back to the age of discovery that I referred to earlier. Even Columbus needed government funding to get his project started. He bugged Ferdinand and Isabella of Spain incessantly, and finally, the same year the reconquista was completed, they bankrolled him and he went. Couldn't have been done without the government - just like Mercury, and Apollo, etc.. And the exploreres and Conquistadors that followed - Cortes, Pizarro, et al. - were also supported by the Spanish crown. Even so, it was when merchants got involved, and started to set up profit making ventures that ensured the Spanish colonies wouldn't die out once they'd looted all the Aztec gold they could get their hands on.
The_Nice_Guy wrote:I am not convinced that private companies or any combination of investors back then could afford the sheer amount of funds to research the thousand-and-one possible engineering paths to space back then, even considering the immense profit. The replication of effort by different units could perhaps be as wasteful as the government's own efforts(probably not though).
And again, how does this negate the fact that we need to get private enterprise involved in the future?
The_Nice_Guy wrote:Getting to space is a very big and incredibly expensive hump. Sadly enough, if the technologies and scientific expertise isn't readily available or cheap enough, the state is often the only agent capable of amssing enough funds(through coercive power) to push the whole thing through, for whatever reason you can think of, some of them silly as hell.
This will only remain true until we discover something that we can get out there that cannot be made or acquired here on earth. Private enterprise is already involved in space. Who do you think owns most of the satellites orbitting earth? We need to encourage private involvement in space and develop it. And people are already coming up with ideas for manufacturing certain things in microgravity, which means space, private business will handle that sort of thing too. As in the age of the discovery, the government will blaze the trail, and entrepreneurs will eventually come after them and find ways to make a profit.

I draw your attention to another historical example. The English crown also got into the race for land in the western hemisphere. Initially, it was hoped that the English would find civilizations in North America like the Spaniards had in south and central America. There was nothing like that up here, however. And because there was no ready source of loot, the English colonies were failing economically, and probably would have died out. The English crown would not have continued to pour money into a losing proposition indefinitely. The English colonies were probably headed for inevitable extinction. And then, certain people discovered tobacco. As a demand in Europe grew for it, entrepreneurs stepped up to meet that demand, and when tobacco began arriving in European ports, the economy of Virginia and other tobacco growing colonies began to take off. Soon it was going along like gangbusters. It's ironic that tobacco, which everybody is so down on today, more than anything else, is really what made the colonization of North America possible from an economic standpoint.

Earlier attempts at colonizing North America failed because they did not justify themselves economically. The Norse colony in Vinland failed because at that time there was nothing Europeans could get from North America that they couldn't get easier and cheaper closer to home. Tobacco existed, of course, as did potatoes, rubber, and lots of other things that the Americas would eventually supply, but no one in Europe knew about those things at the time, and there was thus no demand for them. A demand for tobacco was eventually created, but before that could happen, enterprising people had to go to America, and see what was there that could be made to profit them.

This is why we need to get private enterprise involved in space today. Doubtless there are things out there for which a demand can be made to exist, and space can turn a profit. We just don't know what they are yet, any more than merchants of Henry VIII's time knew that there was this stuff called tobacco in North America that could make them boatloads of money. We need to get private enterprise into space so that we can find what will pay and make it do so.
The_Nice_Guy wrote:Now that the technologies and science is there, and pretty cheap enough, the government can step out. But let's not forget the state made it possible first.

TWG
And again, I never disputed that for an instant. I even agree with you. What's your point?
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Post by The_Nice_Guy »

Uhm, Perin, I was just making a commentary on the topic as a whole, and not exactly replying to your points... If I did, I would've quoted you.

More to the point, I was just reminding the die-hard free marketeers(you know who you guys are :wink: ) about the role that the state had to play, at least at the beginning.

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Post by The_Nice_Guy »

Oh, and before I forget, I agree wth you completely.

This point of contention is also why I find myself a bit wary whenever the ultra-libertarian free market folks(Austrian school types) start espousing the market and non-interventional governments as a cure-all. There's not enough evidence to suggest that the market in the absence of the government could have pushed humanity into the initial era of the space age as quickly as we did(say back in the 60s).

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Post by Darth Wong »

McC wrote:...getting back on topic (sorta...)

Mike, I passed your comments along to the aforementioned friend, and his reply was:
Asteroids would be lucrative because we're scraping the surface of the Earth for heavy metals and the like, when asteroids are made of heavy metals, by and large.
Wrong. According to NASA, more than 3/4 of all asteroids are carbonaceous junk, followed by some S-types, and only a small fraction are metallic (mostly iron), never mind heavy-metal. I don't know where he heard about these heavy-metal asteroids, but I suspect it was sci-fi. And yes, I'll take NASA's word over that of your friend.
And all I can say is that it is inevitable. If mankind survives, the asteroids will be mined. They'll have to be. It'll almost certainly involve an established base in the asteroids, and travelling work crews that break off pieces that look promising, attach PAM rockets, and give them a nudge downwell to Earth orbit.
Nice circular logic; prove that it will be used in the future by saying that it will be a good idea. Then prove that it will be a good idea by pointing out that according to Mr. Prophet, they will use it in the future :roll:
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Post by McC »

He replies:
The percentage he's after is 7%. 7% of asteroids are type M, metallic nickel-iron. Multiply that by the number of asteroids, and it's a significant number. Type E asteroids are considered "heavy-metal" asteroids and while extremely rare, and there in numbers sufficient to make the endeavor worthwhile.
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Post by McC »

Damn, forgot this place didn't have an edit. Also this:
The albedo and other data coming off NEO 3554 Amun, a near-Earth type E asteroid, indicates that it could be composed of a good percentage of platinum.
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Post by Darth Wong »

McC wrote:He replies:
The percentage he's after is 7%. 7% of asteroids are type M, metallic nickel-iron. Multiply that by the number of asteroids, and it's a significant number. Type E asteroids are considered "heavy-metal" asteroids and while extremely rare, and there in numbers sufficient to make the endeavor worthwhile.
So he feels that this is a valid defense of the bullshit statement that "asteroids are made of heavy metals, by and large."? :roll:

And how does he establish that they are present in sufficient numbers to make the endeavour worthwhile, when the project would be infeasible if the asteroid is massive, and not worth it unless the asteroid is both massive and rich in rare minerals?
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Post by McC »

He's not actually talking about a present-day endeavor, but rather something within the next 100 years.
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