International Space Station Turns Two 233
RedWolves2 writes "Today is ISS's second anniversary of Operations. Two years ago today NASA astronaut Bill Shepherd and Russian cosmonauts Yuri Gidzenko and Sergei Krikalev first boarded the ISS. In two years the station has grown to more then 200,000 pounds and has had 112 visitors."
lance (Score:4, Funny)
Its a shame it won't last...
Re:lance (Score:1)
Re:lance (Score:4, Funny)
The worst part? The client that we were doing this job for went belly up right after we were done.
All that staring at Joey "phat one" Fatone for naught!
Pity me
You have my pity. (Score:2, Funny)
Re:lance (Score:3, Funny)
and still (Score:4, Informative)
Re:and still (Score:4, Funny)
That's because they spent all out tax money on the space station and not on elementary school grammar. We have also seen the death of the adverb.
Lolly Lolly Lolly Get your adverbs here...
Re:and still (Score:2)
But we also have the bornification of the neologism to take up the slack.
Re:and still (Score:2, Funny)
Whats it for? (Score:4, Interesting)
Re:Whats it for? (Score:1)
Re:Whats it for? (Score:5, Interesting)
1) Research Investements
2) Engineering Investments
3) Inspirational Exploration
4) Inspirational Art
5) Occasionally Profitable
and for the space station in particular,
6) The one place Americans have restrained themselves and not taken "unilateral action".
-Paul Komarek
Re:Whats it for? (Score:2, Flamebait)
It's good that you said in general, because Items 1 through 6 you listed are only true of *other* space projects, not the ISS.
1) Research Investements It looks increasingly unlikely that any significant research will ever be performed on the ISS; extremely unlikely that $100 billion dollars-worth of research will be. What research is done probably could have been done more cheaply by other means.
2) Engineering Investments
OK, we have a works program, which is actually corporate welfare.
3) Inspirational Exploration
I think we need to get our inspiration along more practical lines.
4) Inspirational Art
5) Occasionally Profitable
ISS is never going to be profitable.
and for the space station in particular,
6) The one place Americans have restrained themselves and not taken "unilateral action".
That could be a reason that the project is such a gross waste of money, time and effort.
Re:Whats it for? (Score:2, Informative)
I'd like to remind the poster of the above that most countries "participating" in the ISS have been defaulting on their share of it, leaving the US to pay up for a capsule that has THEIR flag on it. Then they insult us because we can't afford National Health Care.
Re:Whats it for? (Score:2)
-Paul Komarek
Space exploration (Score:2)
The ISS is just a feeble first step at researching how we can live outside of the womb of mother Earth... did you really expect to jump right to the Moon or to Mars? Of course, it might be a waste of time and money, but that's how many "operational prototypes" are. It would be even more of a failure if we attempted to colonize the moon and it went bust because we didn't have simple stuff like the operations and project management skills that could only be developed by running this ISS business. It would be a real shame if the entire human civilization was wiped out in a few millenia simply because we couldn't be bothered to take the first few baby steps out of our atmosphere.
But I guess more to answer your question, I used to work on a research project that investigated the granular flow of particles in microgravity. There's presumably a lot you can do with forming new materials and pharmaceuticals by developing manufacturing processes in the absence of a gravitational potential always fooling around with you. Our project was relatively pure research... stick a bunch of plastic BBs in a chamber with a circular conveyor belt and see if you could sort them by size, surface friction, or elasticity by merely using a kinetic energy gradient instead of a gravitational energy gradient. Not much practical use, but the point was to develop theoretical models and simulations to predict what would happen for more practical applications. Our conveyor belt had been tested a few times on NASA's KC-135 "vomit comet" aircraft (simulates micrgravity by flying a parabolic trajectory for a few tens of seconds), and was bound for the ISS when I graduated.
you have the secret to eternal life? (Score:2)
Do you really plan to be stuck on this planet for the next 4 billion years?
Well I kind of assumed I'd be dead within the next hundred, can you let me into your secret of near eternal life?
Congrats to World!!! (Score:2)
Re:Congrats to World!!! (Score:3, Interesting)
Re:Congrats to World!!! (Score:2, Insightful)
Sadly we now have an enormously expensive station that requires the crew to spend almost all their time maintaining it instead of doing science experiments. The amount of money spent on the station and the shuttle is so enormous that many other valuable missions have been cancelled.
200,000 pounds ? (Score:3, Funny)
Re:200,000 pounds ? (Score:1)
Re:200,000 pounds ? (Score:1)
An alternative view is that a pound is neither a unit of weight nor of mass, but of currency..
Weight is a force, and it should strictly be measured in N (newtons) in the SI scheme used in most of the world.
Mass is independent of gravity, and its SI unit (and also the normal non-scientific unit in metricised countries) is the kilogram. A kilogram is roughly 2 of your old imperial pounds.
Oh, this is getting boring now. I shouldn't have taken the bait. Curse you, Anonymous Coward, you got me again...
Anyway, alternative units of force to the Newton include "kilogram force" and "pound force", but a kilogram weighs different amounts depending on the gravity in your location.
Sorry, but the same applies to pounds. You don't get around it by being awkward and non-metric.
Re:200,000 pounds ? (Score:2)
You mass the same everywhere (kilograms), but you will weigh (Newtons or pounds) a different amount in every different gravity field.
I'll even post with my real user-name.
Of course, all of this is kind of meaningless, since the space station is in a gravity field. I just wanted to clear up your mis-conception.
Re:200,000 pounds ? (Score:3, Informative)
LOL--It really is true. The slug is the British unit of mass--pound is the unit of force.
You are all wrong! (Score:3, Informative)
Weight (force due to gravity) = -G*M*m/(r^2)
show me what part of that equation is zero...
For instance, an astronaut is weightless relative to the shuttle or ISS, but still weighs 200lb or so relative to the Earth. The apparent weightless is simply due to the fact that the vehicle and the astronaut are both being accelerated toward the Earth with exactly the same magnitude, thus no RELATIVE acceleration and no perceivable weight.
Another misconception is that object are easy to move around in "zero-g". Not so,... a large object still has the same mass as on Earth which corresponds to a lot of inertia so it is very difficult to get moving and stop again. The big difference is that there is no surface friction so once the object is moving, you don't have to apply a non-conservative force to keep it moving.
Not Totally Wrong (Score:1)
Re:Not Totally Wrong (Score:1)
So assuming the author was using one significant digit... 200,000lb is exactly right.
Re:You are all wrong! (not) (Score:2)
That's an interesting form of logic you have there. The "this doesn't follow from my pre-conceived notion of how things work, and therefore must be wrong". Curious.
And yes, you do have to account for the moon, sun, and every other mass in the universe to calculate your weight with complete precision. It's normally safe not to bother, though. Which I guess is why you thought it would be idiotic, and thus somehow wrong, to do so.
What's you're weight on the Moon? 1/6th of what you weigh on Earth. You don't add up the far-away Earth's contribution.
You would if you wanted to be accurate. Just because something is small doesn't mean it doesn't exist, right? And for the ISS, the earth -is- the most significant source of gravity (and thus weight), so you would count it.
Re:You are all wrong! (not) (Score:2)
I wouldn't call it by anything but "weight". That's what weight means. Err, except the "perceived" part, depending on what you meant by that...
but then why are you wasting the term "weight" for a useless technicality that deserves a technical term "the total gravitational force felt assuming a pre-general-relativity model of physics".
Those two statements are the same. Your downward acceleration depends on the total gravitational force.
I guess I can't see what is confusing you.
Re:You are all wrong! (not) (Score:2)
The other definition gives 0.9g*m.
Out of curiosity, how do you figure that?
If you sum all gravitational forces acting on a body, you get a single force vector. Divide that by the mass, and you get the acceleration. Multiply the acceleration by the mass, and you get the gravitational force. They are the same.
Re:You are all wrong! (not) (Score:2)
You read the number on the scale and you're done.
"The number on a scale" is not a definition of weight, that is a measurement of weight. Just like velocity isn't defined as "the number that appears on your speedometer". Velocity is defined as the derivative of position with respect to time. Just because your speedometer says "0" doesn't mean you have no velocity -- if you drive off a cliff, you will have quite a bit of velocity, no? Similarly, you weigh something even though you're in free-fall and thus the scale reads "0". The limitations of your measurement device should not be folded into your definition.
You've confused defining a thing with measuring it -- perhaps that is the problem.
Out of curiosity, is there a way to measure the sum of all gravitational forces acting on a body "locally", meaning that you don't know how far the asteroid is from Earth, your laboratory is windowless, and you can't communicate with the outside?
Of course! Stand on a scale. Or better yet, drop an object and measure the time it takes to fall and from that derive the acceleration it experienced (one of the limitations of a scale is that it can measure force in only one direction, that perpendicular to it's surface). What is it that makes you think that a scale wouldn't also be measuring the effects of other bodies such as earth on you?
Re:You are all wrong! (Score:2)
Weight is a measure of force, and when we say that we usually mean the force exerted by the Earth's gravity on an object. I think a lot of the confusion in this thread over whether weight is a measure of force or mass has to do with the fact that weight is often used to mean mass. The reason for this is that within a constant gravitational field, weight is directly proportional to the mass of an object. So, since we are all near the Earth's surface, weight can be used to mean mass since the gravity we all experience while sitting on the Earth's crust is approximately the same.
The problem with the article stating that the ISS weighs 200,000 pounds is that it is not clear if this means the weight on the ground or the weight in orbit. I assume they mean weight on the ground since for many scientifically illiterate Americans pounds == mass.
Also, the weight of the ISS in orbit with respect to the Earth is certainly not zero. The ISS may be several hundred kilometers above the Earth, but this distance is dwarfed by the radius of the planet. The Earth still exerts considerable gravitational pull (ie, weight) on the ISS. The only reason it stays in orbit is that it has a considerable horizontal velocity with respect to the Earth's surface, so it "falls around" the planet rather than just falling down.
Also, the ISS's orbit is continually decaying. I think that this is a result of the weight being slightly larger than is compensated for by the horizontal velocity, in combination with friction from some gas that is present at that altitude. That's why they have to boost it to a higher orbit every now and then.
Re:200,000 pounds ? (Score:1)
Re:200,000 pounds ? (Score:3, Informative)
Next on Jerry Springer (Score:3, Funny)
Well Lets bring out ISS...
JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY JERRY
umm (Score:2, Funny)
Two years old! (Score:2, Funny)
Mmmmm...free taco....*drool*
---
Yea.. (Score:2)
Re:Yea.. (Score:3, Interesting)
Re:Yea.. (Score:1)
Re:Yea.. (Score:5, Insightful)
GW Bush's propsed 2003 military budget is US$378bn, which is something like US$43bn more than last year.
And what do we have to show for our military spending? We successfully (?) bombed Serbia during peace-time. The Pentagon couldn't even protect itself from relatively slow-moving passenger aircraft, even when given a 30 minute warning. We bombed the hell out of Afghanistan, including first aid warehouses and wedding parties, and it appears that terrorist organizations still have the upper hand.
At least with the space station there are many nations *talking* and *cooperating* to at least some extent. That is, ISS does much more to make friends than the B2 stealth bomber does.
Why do we spend so much money to protect ourselves from enemies when making friends is so cheap? I think the ISS is a damn good investment.
-Paul Komarek
Re:Yea.. (Score:2, Troll)
And what do we have to show for our military spending? We successfully (?) bombed Serbia during peace-time.
FYI, Bush had nothing to do with the US bombing Serbia, and Bush's proposed 2003 budget certainly had nothing to do with it.
The Pentagon couldn't even protect itself from relatively slow-moving passenger aircraft, even when given a 30 minute warning.
If Bill Clinton had done his job as President, the attacks on the US would not have happened (at least not in 2001). Bill Clinton drastically cut the US military budget. It will take years for the military to recover from that. Thus, it is outrageous for you to blame Bush's 2003 budget for the 2001 attack.
We bombed the hell out of Afghanistan, including first aid warehouses and wedding parties, and it appears that terrorist organizations still have the upper hand.
The Taliban is out of power and the US has full access to any part of Afghanistan it desires to explore. OBL hasn't been seen or heard from in months, and is presumed dead.
As for destroying al Quada and worldwide terrorism, that won't be accomplished until Socialism has been destroyed. The terrorists of the world are Socialists, and that includes Iraq (which is the reason Socialist nations--such as France and Germany--oppose effective action against Iraq).
At least with the space station there are many nations *talking* and *cooperating* to at least some extent.
You seem to think the ISS is the reason, instead of just one product. The nations building ISS have been talking and cooperating long before ISS came together.
That is, ISS does much more to make friends than the B2 stealth bomber does.
ISS isn't making friends. It isn't converting enemies. It is just a waste of money and a serious burden on everyone's economy. Even the idiot Socialists know that when an economy gets dragged under by boondoggle programs, it makes the world less friendly. In that way, ISS is hurting friendships.
Why do we spend so much money to protect ourselves from enemies when making friends is so cheap?
Iraq doesn't care about ISS. The Taliban would not care about the ISS. Al Quada does not care about ISS. Your argument is senseless.
I think the ISS is a damn good investment.
I think you are wrong.
Re:Yea.. (Score:4, Insightful)
While it is true that $270 billion is drastically less than $380 billion, it does not necessarily follow that $270 billion is insufficient.
Unless it can be demonstrated that another $100 billion would have prevented the destruction of the towers, the point stands.
George's current buget is simply the most recent figure in a long line of military bugets that can best be summarized by the word "large". I think you read too much into the fact that the quoted value was for the current budget.
Re:Yea.. (Score:2)
As for destroying al Quada and worldwide terrorism, that won't be accomplished until Socialism has been destroyed. The terrorists of the world are Socialists, and that includes Iraq (which is the reason Socialist nations--such as France and Germany--oppose effective action against Iraq).
This is why I find myself more and more afraid to go outside. People make painfully broad generalizations and use them as evidence why anything that is not American is bad.
I personally think the US military budget should be heavily cut, we should never go to war with anyone who doesn't attack us first (war is really just a scare tactic, actual fighting it really, really stupid). And the terrorist attack on America is not just cause to go to war with an entire country.
and you look like one too.... :p
Re:Yea.. (Score:2)
Now this thread might be going offtopic... but, if we do go to war with Irag... would this be the first in American history where we took the initiative?
I went to a talk recently where the speaker (Jello Biafra of DK fame) suggested that this would be the first event in US history where we have to "get" the other guys before they could get us. Jello also filled us in on the striking (and frightening) similiarites between this mentality and Hitlers reasons for the invasion of Poland and most of Europe.
Whatever you believe, this is certainly an interesting time to live, I just wish people didn't have to die as our country flexes and makes other nations quite aware of our overall might.
Re:Yea.. (Score:4, Insightful)
i lived in denmark for 6 months - it describes itself as a "socialist democracy", which could be best paraphrased as "we look after the people first". seriously, you do not see the poverty and crummy state of civil infrastructure that are commonplace in certain parts of the states, you just don't. everyone has automatic access to health care, noone starves on the streets, violent crime is incredibly low. how is that bad?
the US spends more money on defense than the next 9 in the top ten list combined. i would think that equitable access to healthcare is more important than having the most bombs, wouldn't you agree?
Re:Yea.. (Score:2)
I spent 2 years in Guam, 3 months in Italy, 2 weeks in France, 2 weeks in Israel, 2 weeks in Spain, 2 weeks in Mexico and about a day in Canada. None of those places are even half as good as the US.
i lived in denmark for 6 months - it describes itself as a "socialist democracy", which could be best paraphrased as "we look after the people first". seriously, you do not see the poverty and crummy state of civil infrastructure that are commonplace in certain parts of the states, you just don't. everyone has automatic access to health care, noone starves on the streets, violent crime is incredibly low. how is that bad?
You want to compare Denmark to the US, fine, let's compare them:
Denmark - Total area: 43k square kilometers
US - Total area: 9629k square kilometers
Denmark - GDP: $128 billion
US - GDP: $9255 billion
Denmark - Unemployment (1999): 5.7%
US - Unemployment (1999): 4.2%
You have chosen to compare the worst areas of the US with the few areas of Denmark you saw. Can you tell me why your comparison might not be reasonable?
Tell me; what has Denmark done in, say, the last 300 years that is of world-wide significance? Ask the same question of the US, then compare the two lists. The US easily overwhelms anything that Denmark has done. Denmark could fall off the face of the Earth today, and it wouldn't make any difference to almost anyone outside Europe. If the US disappeared, however, the world's largest economy would disappear with it, along with the world's primary source of invention and innovation. Frankly, the world would be plunged into another Dark Ages without the US.
the US spends more money on defense than the next 9 in the top ten list combined.
Whose planes are patrolling the UN no-fly zones in Iraq? Which nation had the largest military in Bosnia during the war? Whose military protected Kuwait when Iraq invaded? Whose military restored a free society to Afghanistan? Whose military provides the primary protection of the UN Headquarters?
i would think that equitable access to healthcare is more important than having the most bombs, wouldn't you agree?
That is not the role of government. The US Constitution spells out that one role of government is to provide for national defense. There is not a word about health care.
Re:Yea.. (Score:2)
How conveniant for you that the items you listed do not lend themselves to objective measure, and so you can feel safe in your opinion, no matter how absurd your opinion might be.
Re:Yea.. (Score:2)
Have you ever even left the town in which you were born? How many countries outside of Europe have *you* visited?
(Europe counts as one, because it is close to impossible to travel 1000 miles in a straight line path and remain inside a single European country, unless you count Russia as a European country, or you travel from tip-to-tip of Sweden.)
Your complaint is empty, because the fact remains that I *have* gotten out and seen a lot more of the world than 98% of either Europeans or Americans ever will, much less the rest of the world, and you still throw stones and me.
Why is it... (Score:2)
For the record, I agree with you on most of those points, and I'm glad someone had the courage to articulate them.
Don't forget to vote today!
Re:Yea.. (Score:2)
-Paul Komarek
Re:Yea.. (Score:2)
Pooua: "I think you are wrong."
Then why do you have a picture of the ISS on your home page?
Technically, that's not a picture of the ISS; it is a picture of Space Station "Freedom."
Leaving the technicality aside, I have the picture for the ideals it connotes. I have always supported space exploration, and I even favor a space station. What bothers me is the uselessness of the current station, and the severe cost over-runs that likely will render the station useless for several years. Even before the station launched, many scientists questioned its usefulness, but now that such things as the centrifuge and enlarged crew compartments have been cut, even the station's proponents have largely stopped talking about meaningful science from the project.
Really, I can not belive the ignorance and downright stupidity of your posts.
Those who couldn't hear the music thought those who danced were crazy.
Equating socialism with terrorism??? Really, give me a break.
Why do you find the idea so difficult to believe? The Arab world is entirely Socialistic, despite its religious orientation. Iraq, itself, its ruled by the Ba`th Arab Socialist Party, of which Saddam Hussein is the Party Leader. Throughout the 19th and 20th Centuries, Socialists were the primary instigators of civil unrest, and, even today, it is likely that any group that encourages civil unrest or hostility has Socialistic leanings.
You might want to have a look at:
Arab Socialism. [Al-IshtirakIyah Al-Arabiyah] (Romanized Form): A Documentary Survey [questia.com]
Saying that the US is better than any other country in the world based on vacations to a handful of countries which lasted two weeks or less??? Again, give me a break.
Do not make the mistake of thinking that I have no other exposure to the dimensions of other countries than just my own brief visits.
If you can name a greater nation than the US, please make your case for it. Otherwise, your sneering is nothing more than your own shock at meeting a different idea.
[snip]
Re:Yea.. (Score:2)
But at least you wouldn't be spending too much money on weapons.
Re:Yea.. (Score:2)
I'm actually in the U.S. military, and I agree with most of this sentiment. From a financial statement, the Space Station makes a far more worthwhile investment than a military which overpowers any five other nations'. Especially given that the cost given is the total cost of the International Space Station, as opposed to the annual cost.
That said, I think the station as it stands now is being horribly mismanaged. What are we doing with it up there? The station should be a scientific tool, not a diplomatic one. We have a platform for large-scale experimentation and research, with the potential to develop zero-g manufacturing methods that might interest companies on the ground enough to invest in space themselves. How much of that are we doing, really?
The space revolution awaits us, but it won't happen until we can make it profitable. The ISS can help us make that happen. In the meantime, it's all I can do to hope and dream that the Department of Defense will one day create a separate Space Force into which I might enlist.
Re:Yea.. (Score:2)
As far as military in space goes, I'm hoping we'll have a stronger Corp of Engineers presence than Airborne presence. No offense intended to Airborne personell.
-Paul Komarek
Re:Yea.. (Score:2)
You want to send the Army into space? I can deal with that, but can we leave them up there? ;)
Re:Yea.. (Score:2)
I guess those dirty rottrn Serb bastards had to go without microwave-ready meals for a while.....
Re:Yea.. (Score:2)
So how long (Score:2, Interesting)
Seriously, I wonder how soon the technology will advance enough to make it feasible to establish a permanent station on another planet or moon, one that could be self-supporting?
Learning things that have practical implications here on Earth (such as improving crops) is pretty cool by itself, but don't you want to visit the moons of Jupiter?
Re:So how long (Score:3, Insightful)
You wouldn't want to live in a space station for 10 years and go back to earth to find out your bones have dissolved, because you didn't need them.
zero gravoty might sound fun, but it's a killer in the long term
Re:So how long (Score:1)
But yes, if you're planning on being off Earth for an extended period (and coming back) then you'll need a significant amount of gravity wherever you're staying.
Of course, I suppose people might choose to emigrate to the moon permanently. Although, if they don't do that AFTER having families, thier children might get a bit annoyed at them..
Re:So how long (Score:2)
Wasn't that where the rotation came in? That's why most of the big Earth-based ships and stations were constantly spinning. I haven't worked out the physics, so I don't know if it's practical outside of B5.
Re:So how long (Score:2)
"the shining star of international co-operation" (Score:3, Insightful)
Yes, maybe - but imagine that it took over an half century of space travel to get these guys working together. Ofcourse it is better now that 3 years ago - but just think if for example US and USSR could have co-operated before the USSR space program and the whole country collapsed. We would be much more far away now.
***plug: Here's an analysis of the slashdot effect [openchallenge.org].
Re:"the shining star of international co-operation (Score:2, Insightful)
also Buran.. (Score:2)
And we might have had two shuttle fleets not one, by all acccounts Buran was a better vehicle with greater potential. Whether that's true or not the two different engineering teams could have learnt a hell of a lot from each other. I reallllly hope the Buran team's knowledge and expertise is being used by somebody right now.
Space programs (Score:2)
Funny.. Because if they were cooperating earlier, there wouldnt have been space programs worthy of cooperation. I think we all know that both space programs were a result of the tension between the formere USSR and the USA.
Re:"the shining star of international co-operation (Score:2)
In 1975 Apollo 18 [nasa.gov] and Soviet Soyuz 19. This was the the last manned American space mission before the first shuttle flight.
And what is there to show for it?? (Score:2)
Re:And what is there to show for it?? (Score:1)
(Which, from reading the links, they seem to think is not that infeasible)
Re:And what is there to show for it?? (Score:2)
Re:And what is there to show for it?? (Score:2)
Typical capitalist yankees. Just because you pay for the majority of something doesn't mean you own it! It's called subsidies, sort of like welfare. See, poorer humans and nations deserve to get wealth redistributions from more wealthy nations. It's their right in a modern PC world.
Coincidence... (Score:5, Funny)
I thought Slashdot posted a story about my ex-girlfriend.
Excellent. (Score:1)
Taking bets on how long it'll be before the station is reduced to a burning mass thanks to our server-stopping/melting/frying/BANG-ability.
Great ISS-related site (Score:4, Informative)
http://heavens-above.com/ [heavens-above.com] has location-based information about the flight path of the ISS, among other things. Worth a visit.
You can't measure objects in space in lbs. (Score:3, Informative)
Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object.
Therefore, you cannot measure the weight of the ISS in pounds, since the force of gravity exerted upon it is miniscule.. so it doesn't really weigh 200,000 lbs.. it just has a mass of the kilogram equivalent of 200,000 lbs!
The ISS would only weight 200,000 lbs if it were on Earth... but it can be 90,909 kgs in space or on Earth since kgs is a measurement of mass not weight!
Re:You can't measure objects in space in lbs. (Score:2, Informative)
Go back to physics class. Gravity still has a very profound effect on the spacestation and on the astronauts (cosmonauts) inside it. The 'weightlessness' is only because they're in perpetual free fall, not because of a lack of gravity. If the effect of gravity were miniscule, they would fly off into space, not orbit the planet.
Re:You can't measure objects in space in lbs. (Score:2, Informative)
refer to lbs mass (this from aerospace class)
-- the more common unit of mass in the customary
system though is the slug (32.2 lbs mass)
Re:You can't measure objects in space in lbs. (Score:2, Informative)
Re:You can't measure objects in space in lbs. (Score:2)
Kaboom is quite right.
The earth has a radius of 6,300 km (roughly.)
The ISS is a measly 361 km up.
Since gravity falls off as the square of the distance from the center of mass (which is the center of the earth) gravity in the ISS is
(6,300 / 6,660) squared = about 0.89.
89% of gravity at sea level.
It could very well weigh 200,000 lbs, although, in a sense, I suspect the original poster is right and that it actually weighs 180,000 lbs.
If you're tempted to mod me up mod up my immediate parent.
What do you want for your birthday? (Score:5, Funny)
Astronaut David A. Wolf [nasa.gov]: Heh. Yeah, right.
Station: Well.... how about understanding between all peoples and religions?
Wolf: Damn programmers. Filthy hippies.
Station: An end to social injustice?
Wolf: Those pinko bastards programmed you for that! Disregard it!
Station: Could you tell everyone that a sentient computer in orbit has found aliens and carries a message of peace and love from the cosmos?
Wolf: We'd be a laughing stock! Look, why don't you ask for something that we can give you up here, right now?
Station: I'm sorry, Dave, I'm afraid I can't do that.
Wolf: Uh-oh.
112 visitors huh? (Score:1)
112 Visitors? (Score:2)
Has anyone noticed all of those ads for freedomofinfo.org? Do a whois and you will understand why.
Powered by NetBSD (Score:2, Interesting)
http://www.netbsd.org/gallery/research.html#sams-
Yep. The daemon went to space before tux.
Story straight from Nasa (Score:3, Informative)
Have you seen the I. S. Station? I have... (Score:2)
You just tell it where you live. [heavens-above.com]
Imagine (Score:3, Funny)
wait to celebrate? (Score:2)
Is it worth ... what? (Score:3, Interesting)
Unmanned probe programs from Cassini [nasa.gov] back to the ancient Mariner [nasa.gov], on the other hand, have produced reams of data for a fraction of the cost and danger. The 25 y.o. Voyager program [nasa.gov] is still working, and they were done on a shoestring compared to ISS. That sort of thing makes me go "wow!" more than several people orbiting the Earth in a claustrophobic tin can.
Congress cries poverty at unsexy robotic probes, yet relatively easily goes for the big-ticket man-in-space programs. This is due to the public as much as the politicians; it's hard to care about a ream of data as much as pictures of an astronaut. Yet I know people in the industry who talked a great deal of how the expensive Shuttle devastated virtually all other programs, in a period when our interplanetary probes were at their zenith -- Voyager, Viking, etc.
This is just to speak of pure research. The greatest practical application of spaceflight has been the launching of satellites for communications, weather observation, and so on. If anything the U.S. lags in this area, as more and more launches go to rockets from France, China, and Russia. My engineer friend's American company has several launches planned on Russian rockets of ancient but reliable technology.
Certainly the people who frequent this site appreciate the power of technology. We're moving to a level of computational power, AI, robotics, etc. whose primary emphasis is to relieve humans of repetitive, demanding, or dangerous tasks. And if our technology fails with a probe, we lose a machine and not a life. Why not apply our emphasis here?
I don't discount the amazing achievements of manned spaceflight -- and it's a cheap part our trillion+ budget with lots of bang for the buck -- but I do question the allocation of these funds. I think we are many years behind what we could have achieved, and what the space program might have driven our engineering to achieve. As for interplanetary travel, I would love to see humans do it but know that unmanned missions can get there much sooner and return more information for less money and without the compromises forced by life support. Ultimately, who cares whether man of machine collects the data?
Thoughts?
What's the Blue Book value on that puppy? (Score:2)
Re:What's the Blue Book value on that puppy? (Score:3, Funny)
No doubt about that, especially with all the miles they've put on it in just two years!
Would it be too much to ask... (Score:2, Insightful)
This is supposed to be a reasonably technical site after all, and most other countries did away with imperial measurements years ago.
Its people like you that get mars probes crashed.
Re:Could someone enlighten me? (Score:1)
Re:Could someone enlighten me? (Score:1, Informative)
Re:So what good is it? (Score:3, Insightful)
If we hope to ever estabilish a permanent moon base or go to Mars (or beyond) we will certainly be building upon the lessons learned in constructing the ISS (pun inteneded).
ISS -- first step to Mars or not? (Score:4, Informative)
The above is a common misconception. Richard Zubrin's Mars Direct [nw.net] proposal shows how to send humans to mars without the ISS. Of course, ISS keeps earthbound contractors fat, and happy.
Lessons learnt in ISS (Score:2)
The ISS relatively convenient place to test the effects and problems of living in space. I'm certainly a lot happier to know that we have somewhere to put theory into practive.
Re:So what good is it? (Score:2)
Re:So what good is it? (Score:5, Interesting)