You are not logged in.
I think Mr. or Ms. Guest could use a few beers themself to lighten up a bit. God forbid if we aren't allowed to goof off and be critical at times on the way to Mars. I enjoyed reading the weblog and am grateful that Adrian took time to write it when he didn't have to.
I thought I'd point out that the image on the MS main site is not the Orion Nebula. That's a galaxy. Someone might fix the error.
OMG! Phobos actually advocating anarchism!?!? WTF???
LOL, I'm big on getting rid of the state which anarchists seek to do. I differ though from a lot of anarchists in that, for various reasons, I'm not a big supporter of hardcore state socialism in lieu of capitalism if the state continues to exist. A lot of anarchists might call me a traitor for saying that but oh well.
think ANARCHYISM is a good thing i mean we dont need no rules unless yer one of those people who use wepeons to fight but other than the use of guns and knifes it would be cool to have NO RULES. My brother and one of my friends who post oin this forum claim to be a anarchist.
Don't equate anarchism with chaos. A lot of people make that mistake. Go read that article I pointed to if you want to see how anarchism could work.
I was thinking if we did build maglev type trains on Mars a lot of new settlements would probably spring up next to the tracks over time in the same fashion that old west towns often propped up next to railroads. The train could keep these settlements supplied. I'd like to see a section of the tubes that the maglev trains would use sectioned off and pressurized so people could actually walk in them from settlement to settlement. It might be a good cure for claustrophobia especially if they use big radiation resistant windows. The tubes would be huge but I think it would be worth it in the long run.
There's a number of problems with producing anti-matter on Earth. One is that to produce anti-matter in commercial quantities would draw off a lot our power generating capacity and two I wouldn't want to live within a 1000 miles of an anti-matter plant that produced enough anti-matter that you could see it with your bare eyes. Any kind of industrial accident that releases anti-matter into the environment would reduce the number of zipcodes in existence. Mercury is the perfect place in my opinion. It's just tortured with solar energy and we could put the critical parts of the plant far beneath Mercury's crust so that it's well shielded against meteorite impacts. And if the things blows on Mercury at least most of us will still be intact.
supersymmetry has to do with being able to renoralize theories that combine general relativity with quantum mechanics. Supersymmetry seems to be the only way to do so(string theory uses supersymmetry).
I'm still waiting for somebody to find a giant string floating around in space. Hey, it's theoretically possible if the string is made energetic enough and I think I'll put my new scope the challenge. I hope physicists make a lot of technological breakthroughs so they can test a lot of this stuff experimentally. Imagine the technology we might be able to create if we could unlock and test more of the aspects of string theory, etc. We might gain insight into how to tamper with space-time in ways we couldn't even think of before hand.
To get back to dark matter, there's a Boston Globe article http://www.boston.com/dailyglobe2/365/s … shtml]here about some evidence the Chandra x-ray scope found concerning darkmatter.
Cindy and anyone else who might be interested you can read some of the ideas of how an anarchist society might work by going http://www.anarchosyndicalism.org/theor … o.htm]here. I think this type of gov't would do well on Mars because of the small population it would likely have. At least it wouldn't be a totalitarian nightmare.
also, space elevators would never really replace SSTOs in terms of flexibility-a spaceplane could go anywhere on earth, or in orbit. if they combined the two, we'd really be going.
True, I think space elevators in the long run will prove primarily useful for carrying huge payloads the way freight trains do now. People don't really rely on them for transportation but there essential for getting goods around. If we want to make large space settlements a reality I really think we're going to need space elevators to get goods to them. I think to that elevators might be good forms of transportation for people who couldn't withstand the high g=forces imposed by a rocket. Since I'll prolly be a 100 before I get to go into space I'll prolly be taking the elevator.
One of these days we should build a big anti-matter factory on Mercury. It's the perfect place, lots of solar power and easy to produce the vaccuum you need and it won't be anywhere near Earth where terrorist groups could sabotage the plant.
Even if it becomes feasible to build one in the next few years, what are we going to do, build it from the bottom up?
Actually you won't need a new big heavy lift rocket for putting up the space elevator. The plan is to launch a small counter weight and a minimal amount of ribbon. For the first year or so climbers would ride the ribbon and reinforce it with additional ribbon until the ribbon is at it's intended width. And the extended climbers from that operation would park themselves up at the counterweight location until it was sufficient for commercial operation. The Russians already have the rockets needed for putting up the elevator.
Has anyone else here read about NASA's research into building small spider bots that would be released onto the surface of Mars and could do double duty as both scientific research instruments and also act a planet wide communications network for crewed Mars missions? Here's the http://www.sciencedaily.com/releases/20 … 2.htm]link.
I bet that idea of using a sail might work great at a place like Titan. If Titan actually has oceans of liquid and strong winds it might be the first place we send an extraterrestrial sailboat. I like the idea of a sailboat probe that would scale the depths beneath. Anyone wanna go sailing on Titan?
I think the first mass transit on Mars would be something akin to a diesel truck pulling a lot of passenger cars. Building a maglev train seems like it might be beyond the capabilities of small settlements since there probably wouldn't be enough labor available to lay down all of the track, tunnel segments, etc. But maybe by that time there will be robotic technology that could do it all autonomously. Generating the power for something like that might be a luxury early Mars colonies might not be able to afford.
A lot of scientists think dark matter is just an exotic form of matter that only interacts with normal matter in a minimal number of ways like exerting a gravitational influence. I remember reading somewhere that dark matter might interact with nuetrinos(?) somehow and that that relationship might shed light on dark matter in the future. I don't remember if it was nuetrinos exactly but I think that was it.
CNT materials have a huge range of potential. CNTs have been found to be excellent for fuel cell hydrides, hydrides that would be significantly lighter than current fuel cells of similiar designs. Automotive manufacturers are researching them as a replacement for steel in a lot of applications since they would make cars lighter and thus more economical to operate. They also have a lot of potential in electronics. I think there's going to be a CNT revolution before we know it.
Here's some abbreviations I can think of, add more if I left anything off:
ISS - International Space Station (also known as International Budget Buster or IBB)
LEO - Low Earth Orbit
GEO - Geosynchronous orbit
HLLV - Heavy Lift Launch Vehicle
ISP - Specific Impulse
VASMIR - Variable Specific Magnetoplasma Rocket
MPD - magnetoplasmadynamic rocket
MDRS - Mars Direct Research Station (I think )
Let's break this down: You like strawberry daquiris better than martinis, but your first reference was indeed to the martini...what else have you tried to grow in a flower pot, besides strawberries??
LOL, I think someone spiked my flower pots, cuz you know, I'd never do anything illegal.
Now, how would they shield these ships from the atmosphere? would the "elevator capsules" be shielded?
Yeah, the capsules would have to be completely enclosed life support systems with leg room because it would take several days to get to GEO a 100,000km high. I'm thinking the capsule could be largely inflatable since that would make attaching it to the climber a lot easier. Some people think sending an Apollo command module type vehicle up the elevator might fit the bill.
another great idea would be to buld another elevator, coil up the ribbon, and send it in pieces to mars. then they could launch stuff back.
I agree. A Martian elevator would probably be more complicated because it would need to avoid the Martian moons but I doubt if that's insurmountable considering that Brad Edward's design for Earth's elevator can actively avoid orbital debris.
I agree with Soph. Rockets in their current incarnations will never open the possibilities of space the way elevators could at least as far as getting off the surface of Earth and into space goes. But then again Shaun Barrett is still holding out hope for anti-grav so maybe we're all wrong about the next technological revolution in spaceflight.
rocket ships havent done anything for us for 40 years. sapce elevators are genius. they would allow a whole new generation of space development, exploration, and settelement.
that is, if they are built.
I believe they'll be built eventually. Even if Highlift doesn't pull it off, NASA or ESA, don't remember which, said they planned to get into serious space elevator research around 2020 which is way too late in my opinion, but like they say, better late than never.
Imagine if you had all the knowledge that ever was; you knew the history of both the past, the present, the future - not just for you, but for every person, animal, mineral, vegetable... every star, every speck of hydrogen. And on top of that, you created the whole shebang. Now, you decide to write this book.... to teach your creations about how they were created, and to give them some pointers and tips and hints (and laws) on how to live.
When you speak of the future are you speaking of it as an alterable state? If the future as God has seen it can't be altered than giving people tips on how to live is pointless and the concept of freewill meaningless since our paths would essentially be pre-determined or known. Before quantum mechanics came along a lot of scientists used to believe that it was theoretically possible to determine the fate of everything in the universe if we could plot with precision the location and speed of every atom and subatomic particle. In that kind of universe,where everything can be predetermined in advance, freewill is an illusion.
That looks like a good site to visit if anyone's just interested in the physics of spaceflight. The orbit finder wouldn't load up for me though.
*Strawberry daquiri for me, thanks. Yes, we need to grow strawberries on Mars...or else I'm -not- going.
I second that. What the hell was I thinking when I mentioned martinis. I'm like strawberry daquiris a lot more myself. I've tried growing strawberries in flower pots before. They didn't do very well but then again anything that live by photosynthesis seems doomed under my care.
*Yeah. Hmmmm, maybe we'd better make everything super-duper rustproof on Mars.
Agreed, I don't want to spend all my of time picking rust flakes out of the water when kicking back.
Well SPACE ELEVATORS cmon now why use those things we have rocket ships and what not to take us to space hmmm but price!
Space elevators have a lot of advantages over rockets. For one thing they don't subject payloads to high g-forces or a lot of vibration. Two, they're a lot simpler, no need for the complex engines, volatile fuels, or guidance systems used by rockets. Three, elevators don't spew toxic exhaust into the atmosphere if the lasers use environmentally friendly power sources. And most importantly, they have the potential to reduce launch costs drastically over those of rockets.
phobos, would 20 tonnes be enough to support a mars direct launch? i dont remember the number he gave for weight, and im too tired to look it up again
The elevator would be supremely useful for resupplying a Martian base and cheaply sending inflatable habs etc to Mars to augment the existing quarters of the crews. I'm thinking with modifications to the Mars Direct plan the elevator could be used for most functions. We'd simply send people up the elevator in a capsule and have them rendevouz with a cycler. And I believe the current plan is to send up three climbers spread some distance apart at a time so the capacity would be tripled even though you'd have to wait a bit longer for everything to come together. I think things could even get simpler and less expensive if we built the counterweight of the elevator up as a giant space station where the assembly of ships and equipment could take place after being sent up the elevator.
Cernan seems to be making waves lately. The last I heard he was approached by some physicists asking about the possibilities of obtaining He3 from the moon for use in fusion experiments and he himself has long advocated extracting this fuel from the moon. If physicists could get a good amount of He3 to experiment with we might find ourselves with a fusion breakthrough before we know it. And since that material doesn't exist on Earth (except as a byproduct in nukes) it could be a powerful factor in motivating us to get back to the moon.
He and Dobbs both expressed a desire for further moon exploration, and strongly emphasized the need to get humans to Mars. Great interview, and a great way to wrap up the 30th anniversary commemoration of Apollo 17.
Awesome idea about sending 17 year olds up on the Shuttle. Maybe NASA could have high school students propose experiments to be done in space and pick as the winner the one with the most interesting experiments. I think we should send up high school students with every mission. I can't think of a better way to motivate high school students to consider space related careers. Of course there'd be a lot of objections because of the danger and no doubt the opponents of such a plan would bring the fate of McAuliffe, so I'm not sure how far such an idea would actually get.
I was thoroughly exposed to every evil act ever committed by the USA while in college and it's not so much the fact that people bring up such information but rather that it seems some people want to use this info as propaganda to help their aims of overthrowing the system and completely revising it's governmental and political structure. I had some professors who were keen to bring up the things that Josh often does but in a manner that was decidedly anti-American. The info was presented in such a way that it often made all other countries look as innocent as a newborn while all problems of significance are the direct consequence of evil American intentions. Perhaps this is why I start getting paranoid everytime people start bringing up these types of issues. I agree that such info should be brought out into the open but I'm suspicious when its used as propaganda to fuel anti-American hatred. I'm not necessarily saying Josh and Alttowar is using it in that way but I just wanted to point out, which Shaun did a lot better, that the USA is certainly not the only country out there that has engaged in devious and destructive behaviour.