There is thought to be enough coal to last for several centuries. The question is whether we can accept the environmental consequences of using it.
Re:100,000 years humans did not walk in asia
on
King Kong Lived?
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· Score: 1
Elephants probably have a better memory than you do.
Whales can probably out think you in that and other ways we may not understand yet.
Humans do appear to think differently than our immediate ancestors, as is shown by the sudden blooming of art, e.g. cave paintings, and burial rituals. We think that means we are more intelligent, Neandertals probably thought we were just crazy.
TechnologyX said: 'Yeah, because we all know the L/GPL bullshit would hold up in court. "I wanted my code to be freeee but they STOLE IT!!!111"'
I think that most of our thoughts are more "I wanted my code to be free but they imprisoned it".
Re:Sensationalist Journalism?
on
A Flu Pandemic?
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· Score: 1
If HIV, with its long incubation and high death rate, had been as infectious as the influenza virus it might have killed almost everyone. It's pretty scary if you think about it.
No rest mass, yeah, I knew that. But the EM field has energy, and I was referring to that energy by the mass equivalent, since I felt the center of mass of the entire system should remain stationary. Is that somehow invalid? Maybe it is, I'm not sure.
You could do the same thing with bright flash of light at A and a mirror at B.
I think the electromagnetic field generated in either case has a mass, but with zero average velocity and momentum in either case until it interacts with B. So the momentum of B comes from the EM field, and the two combined still have zero velocity, but B and the EM field are both moving away from their center of mass.
Turn on a flashlight in space and you essentially have a space drive. Your scheme seems to do much the same thing but a lower frequency.
The author is probably quite aware of the likely environmental problems, in fact he mentions them as a possible reason ocean storage should not be done. That was just not the focus of his research. Many people have been suggesting that carbon dioxide from power plants could be sequestered in the ocean and he was looking at some (but not all) of the problems in doing so.
I don't think insulting people based on a short summary of an article about their work is fair.
I never expected the Reform Party to be taken over by right wing extremists, but they were. Just because you don't see how the FSF could be subverted doesn't mean it can't.
I wouldn't want to rely on a court deciding that the BSD license is an unworthy successor to the GPL.
Venus has very little water, around 20 ppm according to one site I checked, and to get that you would have to extract it from sulfuric acid. Venus is thought to have lost almost all of its primordial water to photo dissociation, with the hydrogen then escaping to space. The evidence for this is a greatly elevated deuterium to hydrogen ratio compared to Earth.
It wasn't quite the same, but the USA did have an unbiased group to advise congress, the Congressional Office of Technology Assessment. It was killed in 1995, despite the excellent job almost everyone agreed it was doing, ostensibly for budget reasons. I think too many Congressmen and Senators just got tired of facts getting in the way of their preconceptions.
That was new to me too, and the best information I could find with Google is that there was a reprise of the song done near the end of a preview version of the movie, but not in the released version. The song was shown/heard in previews and ancillary products, so some people remember it and though it should be on the DVD, without realizing it was never part of the theatrical release.
As I said, that's what I found by searching. I don't know if that's the only story.
If it weren't for the moderation system I don't think Slashdot would be viable, and somehow I doubt that even slashcode would keep Hastert's blog from chaos if random people could post comments.
I recall seeing a product announcement (or proposal or something like that) for this decades ago. I don't know what became of it, but there were probably problems along the lines you suggested. Perhaps it is time to revisit the idea.
How can the human body be "orders of magnitude better" than a car when the car is already more than 10% efficient? Anyway, from http://www.uic.edu/aa/college/gallery400/notions/h uman%20energy.htm
"We can view that 90 watts in yet another context. At best, only about one-fourth of the energy in food emerges as useful mechanical work. Thus, laboring on the treadmill--sustaining 90 watts for ten hours--itself requires more than 3,000 Calories. So Bellevue's inmates worked hard enough and long enough to require double the food intake of a normally active adult male."
Not an easy question answer through Google, but http://www.cptips.com/energy.htm also claims 25%.
So it appears that cars are about the same at processing chemical energy as the human body.
You are ignoring the low chemical efficiency of the human body in converting chemical energy into work. I believe the bicycle is more efficient in terms of people miles per calorie, but mostly due to not moving a multi-thousand pound car around.
It has been speculated that Venus may undergo a complete crust turn over at long intervals rather than Earth's gradual spreading-center to subduction-zone process. If this is the norm among Earth sized planets that have NOT have had an early collision that stripped off much of the crust, it could be a reason for intelligent life being rare (as per the Fermi Paradox).
Since this material is sort of an oxide it's not going to be subject to the same pitting as aluminum metal.
Regular aluminum oxide is attacked by either strong acid or strong base (don't try to clean your ruby with oven cleaner or chromerge), so you might suspect that it could have a long term problem with acid rain. I'm sure this has been tested for though and I expect it is not a problem.
The arrangement doesn't have to be parabolic for this to work. Assuming the individual mirrors are flat, each one just needs to be small enough that from the point of view of the target the sun's reflection fills the entire mirror. If you want a smooth surface, you need a parabola, but this is somewhat like the mirror equivalent of a Fresnal lens.
The problem is getting enough mirrors so that, from the point of view of the target, the images of the sun cover several degrees instead of the half degree of the real sun.
I guess you could vote for anyone, but it won't count in any jurisdiction I've ever heard of unless the candidate has registered as a write-in candidate. This is usually the same procedure as getting on the ballot, but has a latter deadline.
Slashdot Mirror
He is not proposing building a tower, rather the tornado IS the tower, with walls of wind as it were.
Not that it really sounds feasible to me anyhow.
The ancestral species for the domestic chicken is the Jungle Fowl, and it still lives.
h tml
See: http://www.geocities.com/hs_wong33/RedJungleFowl.
There is thought to be enough coal to last for several centuries. The question is whether we can accept the environmental consequences of using it.
Elephants probably have a better memory than you do.
Whales can probably out think you in that and other ways we may not understand yet.
Humans do appear to think differently than our immediate ancestors, as is shown by the sudden blooming of art, e.g. cave paintings, and burial rituals. We think that means we are more intelligent, Neandertals probably thought we were just crazy.
TechnologyX said:
'Yeah, because we all know the L/GPL bullshit would hold up in court. "I wanted my code to be freeee but they STOLE IT!!!111"'
I think that most of our thoughts are more "I wanted my code to be free but they imprisoned it".
If HIV, with its long incubation and high death rate, had been as infectious as the influenza virus it might have killed almost everyone. It's pretty scary if you think about it.
No rest mass, yeah, I knew that. But the EM field has energy, and I was referring to that energy by the mass equivalent, since I felt the center of mass of the entire system should remain stationary. Is that somehow invalid? Maybe it is, I'm not sure.
You could do the same thing with bright flash of light at A and a mirror at B.
I think the electromagnetic field generated in either case has a mass, but with zero average velocity and momentum in either case until it interacts with B. So the momentum of B comes from the EM field, and the two combined still have zero velocity, but B and the EM field are both moving away from their center of mass.
Turn on a flashlight in space and you essentially have a space drive. Your scheme seems to do much the same thing but a lower frequency.
A polynomial time factorization algorithm would prove P=NP only if factorization is NP-complete, which it is not known, or conjectured, to be.
If you are using Firefox you can use Spellbound at http://spellbound.sourceforge.net/
Coincidently, it saved me from the same misspelling of speech earlier today.
I think this guy may have posted a link to why DARPA thinks this can be done: http://science.slashdot.org/comments.pl?sid=167428 &cid=13960099
The author is probably quite aware of the likely environmental problems, in fact he mentions them as a possible reason ocean storage should not be done. That was just not the focus of his research. Many people have been suggesting that carbon dioxide from power plants could be sequestered in the ocean and he was looking at some (but not all) of the problems in doing so.
I don't think insulting people based on a short summary of an article about their work is fair.
I never expected the Reform Party to be taken over by right wing extremists, but they were. Just because you don't see how the FSF could be subverted doesn't mean it can't.
I wouldn't want to rely on a court deciding that the BSD license is an unworthy successor to the GPL.
"Diode, not display"
No, it's not a diode!
The way the term is used nowadays, perhaps it could be redefined as a Liquid Crystal Device.
Venus has very little water, around 20 ppm according to one site I checked, and to get that you would have to extract it from sulfuric acid. Venus is thought to have lost almost all of its primordial water to photo dissociation, with the hydrogen then escaping to space. The evidence for this is a greatly elevated deuterium to hydrogen ratio compared to Earth.
It wasn't quite the same, but the USA did have an unbiased group to advise congress, the Congressional Office of Technology Assessment. It was killed in 1995, despite the excellent job almost everyone agreed it was doing, ostensibly for budget reasons. I think too many Congressmen and Senators just got tired of facts getting in the way of their preconceptions.
That was new to me too, and the best information I could find with Google is that there was a reprise of the song done near the end of a preview version of the movie, but not in the released version. The song was shown/heard in previews and ancillary products, so some people remember it and though it should be on the DVD, without realizing it was never part of the theatrical release.
As I said, that's what I found by searching. I don't know if that's the only story.
If it weren't for the moderation system I don't think Slashdot would be viable, and somehow I doubt that even slashcode would keep Hastert's blog from chaos if random people could post comments.
I recall seeing a product announcement (or proposal or something like that) for this decades ago. I don't know what became of it, but there were probably problems along the lines you suggested. Perhaps it is time to revisit the idea.
How can the human body be "orders of magnitude better" than a car when the car is already more than 10% efficient? Anyway, from http://www.uic.edu/aa/college/gallery400/notions/h uman%20energy.htm
"We can view that 90 watts in yet another context. At best, only about one-fourth of the energy in food emerges as useful mechanical work. Thus, laboring on the treadmill--sustaining 90 watts for ten hours--itself requires more than 3,000 Calories. So Bellevue's inmates worked hard enough and long enough to require double the food intake of a normally active adult male."
Not an easy question answer through Google, but http://www.cptips.com/energy.htm also claims 25%.
So it appears that cars are about the same at processing chemical energy as the human body.
You are ignoring the low chemical efficiency of the human body in converting chemical energy into work. I believe the bicycle is more efficient in terms of people miles per calorie, but mostly due to not moving a multi-thousand pound car around.
It has been speculated that Venus may undergo a complete crust turn over at long intervals rather than Earth's gradual spreading-center to subduction-zone process. If this is the norm among Earth sized planets that have NOT have had an early collision that stripped off much of the crust, it could be a reason for intelligent life being rare (as per the Fermi Paradox).
Since this material is sort of an oxide it's not going to be subject to the same pitting as aluminum metal.
Regular aluminum oxide is attacked by either strong acid or strong base (don't try to clean your ruby with oven cleaner or chromerge), so you might suspect that it could have a long term problem with acid rain. I'm sure this has been tested for though and I expect it is not a problem.
The arrangement doesn't have to be parabolic for this to work. Assuming the individual mirrors are flat, each one just needs to be small enough that from the point of view of the target the sun's reflection fills the entire mirror. If you want a smooth surface, you need a parabola, but this is somewhat like the mirror equivalent of a Fresnal lens.
The problem is getting enough mirrors so that, from the point of view of the target, the images of the sun cover several degrees instead of the half degree of the real sun.
I guess you could vote for anyone, but it won't count in any jurisdiction I've ever heard of unless the candidate has registered as a write-in candidate. This is usually the same procedure as getting on the ballot, but has a latter deadline.