> whether Lead-Free petrol has benefited the environment or not, since Lead-Free petrol has caused increases in SO2 emissions which cause H2SO4 acid rain and decimation of forests in Sweden and Norway as well as damage to old and ancient structures in France, Italy and Greece.
It was necessary for the introduction of the catalytic converter to switch to lead-free petrol as the lead deactivates the main catalysator. The cat was necessary to reduce acid rain by NOx-reduction (Transportation accounts for 43percent, industry 32percent, natural 5percent of overall emissions (1993) ) For SO2: Overall, 69.4 percent of sulfur dioxide is produced by industrial combustion. Only 3.7 percent is caused by transportation. And now there is another solution: sulphur-free gasoline.
> His excuse? He was "wrong" back then. So, who's right and who can you believe?
Ignoring that you are sufficiently vague, (What is an athmospheric scientist? Who was it? When did he expect the coming Ice Age? What did he really say?), and ignoring that a theory has to be tested on its facts and reasoning and not on its proponents, I'd rather believe someone who admits his mistakes and learns from them as someone who claims to be always be right and stays by his theory ignoring more recent data.
Re:This is NOT the first self-sustainable house!!!
on
Solar-Hydrogen Eco-House
·
· Score: 2, Informative
Puh, another self-sustaining house. No, not in the Sahara, neither in Texas or South California: Freiburg, Germany, 1992, running with solar power and hydrogen(PDF), (and a picture of it)
I was taking WPO into account. "Whole Program Optimisation", WPO as abbreviated by the Intel Compiler, which IRC introduced that feature in version 7.0. When this feature is activated the object files are in reality just the parsed representation of the files. As you said, the real compilation step is delayed until the linkling step.
But this is disabled by default. So, unless the poster activated it explicitely (and hopefully knew what he/she did) the comparison is relatively fair. Especially, when using dumpbin, as the program would fail on obj-files produced with WPO enabled anyway.
>> Pointers are a datatype. References aren't. > Then what is int & ?
Well, I think I have to correct myself. The correct term for a reference is opaque datatype.
> Would you argue against this statement? Yes. Two things. First, what I write about references is not C++ specific, but it is about the abstract concept. You have no operations on references. All operations happen on the object referenced. The reference has the same semantic as the object itself.
At the very least, you still have to dereference a const-pointer. This is an operation on a pointer.
Re:Qt is almost a like a language
on
A Taste of Qt 4
·
· Score: 4, Informative
Only objects derived from QObject and added as a child to another QObject are deleteted automatically on destruction of the parent. (See QObject)
This means that one doesn't have to delete all widgets which are added to a parent widgets by hand, but that it happens through the ownership-tree when deleteing the parent widget.
I don't feel qualified to play judge between DDJ and Trolltech on wether that is good or bad C++ practice.
Re:Wait... so you're telling me...
on
A New Ice Age?
·
· Score: 1
Actually, the first accord from 1997 already contained the reforestation clause, so quite some time before the US withdraw from it. Only that already existing forest should be included was added fairly late. That was primarily to accommodate Russias and Canadas claims.
I did not know about when the CO2 trading was negotiated, so I didn't comment on that. Surprisingly, then Vice-President Al Gore already negotiated that. Obviously, before the US withdraw from it.
> Frankly, we are better off spending the money trying to come up with newer environmentally friendly technologies than trying to reduce CO2 emissions now.
How about trying to reduce CO2 reductions by spending the money for coming up eco-tech? By levying taxes on CO2 and other greenhouse-gases makes the development of said technologies a more critical concern of companies as it will become a greater part of the costs of production. Said companies will have to invest more money in development and deployment of GG-reducing technology as the competition will drive them to. At the same time, the goverment could either use the money to support the research on said technologies, or, God forbid, reduce the budget deficit.
The difference to now would be that the importance of GG-reduction would be a more pressing matter for companies.
Considering the development of the automobile-industry, I think that would be a good idea.
Coincidentally, at the same time the petrol prices raised extraodinarily in Europe and Japan, European and Japanese companies released economical cars which consume 3l/100km. A little known fact, Volkswagen developed already in the 70s a car (coincidentally shortly after the Energy Crisis) such a car. As there was no market for it, the development was stopped.
> In C, "pointers" are references to variables. [...] > At the machine level, Pascal's 'VAR' keyword to pass arguments by reference just passes pointers around anyway
Actually, no. You can accomplish with pointers in C what you can accomplish with references in other languages. This is not particular surprising and doesn't make pointers references. That every language known on earth implements on machine-level pass-by-references with pointers doesn't make pointers references either. Pointers are a datatype. References aren't. In C (and C++) you can modify a pointer, but you can't modify a reference, because it is merely that, a reference.
Unless using WPO, object files contain almost only the code and data corresponding to the source file it is compiled from. For that reason, WPO is deactivated by default.
So, when comparing object files you compare the result of the compiler and not the whole tool-chain.
Passing by pointer is passing by value. You just pass the value of the pointer. That you have to pass the pointer is the semantical difference. If you'd denote the passing mechanism not with &, but say, INOUT, would be a syntactical difference.
What would interest me is the code size of the object file(s). The difference of code-size could lie in the amount of code that is statically linked in the executable. It wouldn't surprise me that the tool-chain for windows is not optimised for code-size.
Re:Wait... so you're telling me...
on
A New Ice Age?
·
· Score: 1
> Actually, the US does have vast streches of forests (that are growing, not shrinking), though I wouldn't call them secret.
Over the last century the US has almost exactly 300 million hectar of forests. The US claimed in 2000 that their forests absorbs 310 million metric tons of CO2. In 1996, the US emitted 5.000 million metric tons of CO2. Hardly a net minus.
> One of the things the US wanted in Kyoto, but didn't get, was credit for CO2 absorbtion.
The Kyoto Protocol Article 3.3 gives credit for "afforestation, reforestation and deforestation since 1990". And the fact that a (non-growing) forest absorbs CO2 seems to be a temporary effect. They can only puffer an additional amount of CO2.
Re:Wait... so you're telling me...
on
A New Ice Age?
·
· Score: 1
No, you wrote two facts: "considering it was warmer in europe in the middle ages than now and we are about 13 degrees below the global average temperature over time". (emphasis mine)
First, the fact that it was warmer in Europe is quite interesting, but has no great significance for the global temperature. Ice core probes show that changes of the global temperature of more than 1K in the last 10 millenia are unlikely. The second fact, "13 degrees below global average over time". The whole time of existance of earth? Who cares? More important is the fact that we are roughly 4K above average temperature in the last 400 millenia (which were quite unstable). As I said, the last 10 millenia the climate were stable. coincidentally the roughly the same time human civilisation began to develop.
AFAIK, the "Little Ice Age" has only been documented in Europe and NE America.
Re:Wait... so you're telling me...
on
A New Ice Age?
·
· Score: 1
So, you are saying you are knowing yourself that there is a reason why it is currently considerably colder than in the Middle Ages, and accepting the theory that the mechanism works as described. But at the same time you are using it as a counterargument against the seriousness of Global Warming?
I fail to grasp the logic behind it.
Re:Wait... so you're telling me...
on
A New Ice Age?
·
· Score: 2, Troll
> I haven't seen any Oh, an armchair climatologist. Can't wait for the reposte that claims that climatologists are doing it for their own personal agenda.
> It would take a massive development to make this anything other than junk science
Yeah, that is why those things are published in such back-world papers like Science and Nature.
> The U.S. already consumes more CO2 than it produces.
Care to back this up? Is the US secretly growing vast forests? The US has the most CO2 emissions, how do you achieve to have a netto minus? Maybe you can tell the other countries about it.
Re:Wait... so you're telling me...
on
A New Ice Age?
·
· Score: 1
Did it occur to you that the post is writing about Global warming causing slow down of gulf-stream which results in cooling down of Europe?
> I used to be a Mandrake user, but I got sick of the fact that once you install, there are no easely automated ways to update yoyr software
What is wrong with urpmi? Oh, the fact that you don't get the newest revision of all software as soon as it is released as source? Then try using the Cooker, but don't complain about stability.
There is a reason why there are point releases.
> But why couldnt they squeeze in 2.6.4 at the time they were getting ready to relese the ISOs'?
Maybe because they want to test the components before releasing them. And it is not like it is a vanilla 2.6.3 kernel. I'm sure there are several bug-fixes applied from the later releases.
> Once we are used to having it on demand, it's kinda hard to think about conserving.
Some examples I recall, but since they are from my memory, take them with a grain of salt. I can have messed it up.
Berlin, Germany: The people there were so economical with their use of water, the sewers had not enough water to function properly.
In a quarter of Toyko a person built a tank to collect rain-water, to water his garden and WC. He ran into several problems with the administration, which (somewhere in summer last year, IRC) finally supports the idea. Several neighbours were suprised by that idea and asked him to equip their homes with such a tank, too. They do it mainly out of enviromental reasons. The savings on water can barely justify the investment.
So, how do you get people to save water?
Educate them
and make water more expensive
Later on, when you really need a de-salination plant, you could use the savings from the increased fees for water to build it. (Or, considering public spendings, you could use the reduction of increase of debt to build it.)
> 90nm technology has also been undergoing perfection with Prescott, meaning lower voltages, higher yields, less wasted silicion on the wafer.
Not to mention increasing the higher leak current, the possibility to increase the clockrate to 5GHz, and higher power consumption. Oh, the 5GHz was an estimate of Intel. It is their current target for the end of the year. So, no Dothan on the desktop.
The 3.2GHz Prescott consumes even a fair amount more energy than its 3.2Ghz predecessor.
> Ever wonder why Intel's not been cranking out Prescott cored processors that run even faster/hotter? Is it because they couldn't just bolt a jet engine and a copper block to the thing and ship it? No.
No, it is because the mainboards and psu can't deliver the 100A those devices would require. And it is quite a problem to dissipate the heat of such a thing. Remember the new mainboard-layout which shoud cope with that thing? Also an idea of Intel.
> Why do they need to compare anything except clocks? Well, because AMD is wiping the floor with them, that's why.
Quite the contrary. AMD has introduced the X+ rating for that reason. The problem is totally self-made. They've developed a design which has a better performance (Banias/Dothan...) at even lower clock speed. Now they have a problem to place that chip against its own products.
Elevator seeking is looking at the current request queue and bundle requests which are close together to minimise head movement. This is indeed old. IRC, Linux had it since 2.2 something.
The anticipatory scheduler tries to anticipate future requests (who would have guessed that?), and is relatively new
> Additionally, most Nazi imagery is illegal in Germany, regardless of context or medium.
Nazi imagery is not illegal regardless of the context or the medium. It is illegal without appropriate historical context/annotation.
The German government deemed that a game for leisure doesn't provide the appropriate historical context, no matter how many soldiers and Nazis you may kill in it. There are ample German documentations and educational material all containing Nazi imagery. It is the single most important part in German history curricula. However, you'll probably have a hard time finding "Der Ewige Jude" uncut
> If I recall correctly, the military budget is about $400bn.
That is without the supplemental fundings (each roughly $60bn for each fiscal year).
Fun with figures: $521 billion is the projection of the deficit fot the FY 2004. In the year 2003 the U.S. spent $318 billion on interests. NASA: $15 Billion, Education: $61 Billion
I don't think it is a particular ethic, as there research insitutes which concentrate on the facial part alone. IRC, the reasoning for the no-face design is, that when a robot has an actual face, people are trying to interprete its expressions. A hard to read face gives people a bad feeling. So, they are developing independently from the robots faces which can express "feelings".
Robots have a different association in Japanese culture. In Western pop culture the first reference to a robot I can think of is Maria from Metropolis, in Japan Astro Boy. So, I'd say the bad feeling is also partly rooted in culture.
> It is a lot harder to [...] attach [...] emotion to something that's faceless and non-human looking, [...]
Um, I'd like to refer to Tamagotchis. It is not uncommon that people attach feelings to things.
> And what is the reason? The US doesn't have a national ID. And the people (or at least those on Slashdot) are opposed to it because of privacy/security concerns.
Slashdot Mirror
> whether Lead-Free petrol has benefited the environment or not, since Lead-Free petrol has caused increases in SO2 emissions which cause H2SO4 acid rain and decimation of forests in Sweden and Norway as well as damage to old and ancient structures in France, Italy and Greece.
It was necessary for the introduction of the catalytic converter to switch to lead-free petrol as the lead deactivates the main catalysator.
The cat was necessary to reduce acid rain by NOx-reduction (Transportation accounts for 43percent, industry 32percent, natural 5percent of overall emissions (1993) )
For SO2: Overall, 69.4 percent of sulfur dioxide is produced by industrial combustion. Only 3.7 percent is caused by transportation. And now there is another solution: sulphur-free gasoline.
> His excuse? He was "wrong" back then. So, who's right and who can you believe?
Ignoring that you are sufficiently vague, (What is an athmospheric scientist? Who was it? When did he expect the coming Ice Age? What did he really say?), and ignoring that a theory has to be tested on its facts and reasoning and not on its proponents, I'd rather believe someone who admits his mistakes and learns from them as someone who claims to be always be right and stays by his theory ignoring more recent data.
Puh, another self-sustaining house. No, not in the Sahara, neither in Texas or South California:
Freiburg, Germany, 1992, running with solar power and hydrogen(PDF), (and a picture of it)
I was taking WPO into account. "Whole Program Optimisation", WPO as abbreviated by the Intel Compiler, which IRC introduced that feature in version 7.0.
When this feature is activated the object files are in reality just the parsed representation of the files. As you said, the real compilation step is delayed until the linkling step.
But this is disabled by default. So, unless the poster activated it explicitely (and hopefully knew what he/she did) the comparison is relatively fair. Especially, when using dumpbin, as the program would fail on obj-files produced with WPO enabled anyway.
>> Pointers are a datatype. References aren't.
> Then what is int & ?
Well, I think I have to correct myself. The correct term for a reference is opaque datatype.
> Would you argue against this statement?
Yes. Two things. First, what I write about references is not C++ specific, but it is about the abstract concept.
You have no operations on references. All operations happen on the object referenced. The reference has the same semantic as the object itself.
At the very least, you still have to dereference a const-pointer. This is an operation on a pointer.
Only objects derived from QObject and added as a child to another QObject are deleteted automatically on destruction of the parent. (See QObject)
This means that one doesn't have to delete all widgets which are added to a parent widgets by hand, but that it happens through the ownership-tree when deleteing the parent widget.
I don't feel qualified to play judge between DDJ and Trolltech on wether that is good or bad C++ practice.
Actually, the first accord from 1997 already contained the reforestation clause, so quite some time before the US withdraw from it. Only that already existing forest should be included was added fairly late. That was primarily to accommodate Russias and Canadas claims.
I did not know about when the CO2 trading was negotiated, so I didn't comment on that. Surprisingly, then Vice-President Al Gore already negotiated that. Obviously, before the US withdraw from it.
> Frankly, we are better off spending the money trying to come up with newer environmentally friendly technologies than trying to reduce CO2 emissions now.
How about trying to reduce CO2 reductions by spending the money for coming up eco-tech?
By levying taxes on CO2 and other greenhouse-gases makes the development of said technologies a more critical concern of companies as it will become a greater part of the costs of production.
Said companies will have to invest more money in development and deployment of GG-reducing technology as the competition will drive them to.
At the same time, the goverment could either use the money to support the research on said technologies, or, God forbid, reduce the budget deficit.
The difference to now would be that the importance of GG-reduction would be a more pressing matter for companies.
Considering the development of the automobile-industry, I think that would be a good idea.
Coincidentally, at the same time the petrol prices raised extraodinarily in Europe and Japan, European and Japanese companies released economical cars which consume 3l/100km. A little known fact, Volkswagen developed already in the 70s a car (coincidentally shortly after the Energy Crisis) such a car. As there was no market for it, the development was stopped.
> In C, "pointers" are references to variables. [...]
> At the machine level, Pascal's 'VAR' keyword to pass arguments by reference just passes pointers around anyway
Actually, no. You can accomplish with pointers in C what you can accomplish with references in other languages. This is not particular surprising and doesn't make pointers references. That every language known on earth implements on machine-level pass-by-references with pointers doesn't make pointers references either. Pointers are a datatype. References aren't. In C (and C++) you can modify a pointer, but you can't modify a reference, because it is merely that, a reference.
Unless using WPO, object files contain almost only the code and data corresponding to the source file it is compiled from. For that reason, WPO is deactivated by default.
So, when comparing object files you compare the result of the compiler and not the whole tool-chain.
Passing by pointer is passing by value. You just pass the value of the pointer.
That you have to pass the pointer is the semantical difference.
If you'd denote the passing mechanism not with &, but say, INOUT, would be a syntactical difference.
References aren't merely not-null pointers.
What would interest me is the code size of the object file(s).
The difference of code-size could lie in the amount of code that is statically linked in the executable.
It wouldn't surprise me that the tool-chain for windows is not optimised for code-size.
> Actually, the US does have vast streches of forests (that are growing, not shrinking), though I wouldn't call them secret.
Over the last century the US has almost exactly 300 million hectar of forests. The US claimed in 2000 that their forests absorbs 310 million metric tons of CO2. In 1996, the US emitted 5.000 million metric tons of CO2. Hardly a net minus.
> One of the things the US wanted in Kyoto, but didn't get, was credit for CO2 absorbtion.
The Kyoto Protocol Article 3.3 gives credit for "afforestation, reforestation and deforestation since 1990".
And the fact that a (non-growing) forest absorbs CO2 seems to be a temporary effect. They can only puffer an additional amount of CO2.
No, you wrote two facts:
"considering it was warmer in europe in the middle ages than now and we are about 13 degrees below the global average temperature over time". (emphasis mine)
First, the fact that it was warmer in Europe is quite interesting, but has no great significance for the global temperature.
Ice core probes show that changes of the global temperature of more than 1K in the last 10 millenia are unlikely.
The second fact, "13 degrees below global average over time". The whole time of existance of earth? Who cares?
More important is the fact that we are roughly 4K above average temperature in the last 400 millenia (which were quite unstable).
As I said, the last 10 millenia the climate were stable. coincidentally the roughly the same time human civilisation began to develop.
AFAIK, the "Little Ice Age" has only been documented in Europe and NE America.
So, you are saying you are knowing yourself that there is a reason why it is currently considerably colder than in the Middle Ages, and accepting the theory that the mechanism works as described. But at the same time you are using it as a counterargument against the seriousness of Global Warming?
I fail to grasp the logic behind it.
> I haven't seen any
Oh, an armchair climatologist. Can't wait for the reposte that claims that climatologists are doing it for their own personal agenda.
> It would take a massive development to make this anything other than junk science
Yeah, that is why those things are published in such back-world papers like Science and Nature.
> The U.S. already consumes more CO2 than it produces.
Care to back this up? Is the US secretly growing vast forests? The US has the most CO2 emissions, how do you achieve to have a netto minus? Maybe you can tell the other countries about it.
Did it occur to you that the post is writing about Global warming causing slow down of gulf-stream which results in cooling down of Europe?
> I used to be a Mandrake user, but I got sick of the fact that once you install, there are no easely automated ways to update yoyr software
What is wrong with urpmi? Oh, the fact that you don't get the newest revision of all software as soon as it is released as source? Then try using the Cooker, but don't complain about stability.
There is a reason why there are point releases.
> But why couldnt they squeeze in 2.6.4 at the time they were getting ready to relese the ISOs'?
Maybe because they want to test the components before releasing them. And it is not like it is a vanilla 2.6.3 kernel. I'm sure there are several bug-fixes applied from the later releases.
Some examples I recall, but since they are from my memory, take them with a grain of salt. I can have messed it up.
Berlin, Germany: The people there were so economical with their use of water, the sewers had not enough water to function properly.
In a quarter of Toyko a person built a tank to collect rain-water, to water his garden and WC. He ran into several problems with the administration, which (somewhere in summer last year, IRC) finally supports the idea.
Several neighbours were suprised by that idea and asked him to equip their homes with such a tank, too.
They do it mainly out of enviromental reasons. The savings on water can barely justify the investment.
So, how do you get people to save water?
Educate them
and make water more expensive
Later on, when you really need a de-salination plant, you could use the savings from the increased fees for water to build it. (Or, considering public spendings, you could use the reduction of increase of debt to build it.)
> 90nm technology has also been undergoing perfection with Prescott, meaning lower voltages, higher yields, less wasted silicion on the wafer.
Not to mention increasing the higher leak current, the possibility to increase the clockrate to 5GHz, and higher power consumption. Oh, the 5GHz was an estimate of Intel. It is their current target for the end of the year. So, no Dothan on the desktop.
The 3.2GHz Prescott consumes even a fair amount more energy than its 3.2Ghz predecessor.
> Ever wonder why Intel's not been cranking out Prescott cored processors that run even faster/hotter? Is it because they couldn't just bolt a jet engine and a copper block to the thing and ship it? No.
No, it is because the mainboards and psu can't deliver the 100A those devices would require. And it is quite a problem to dissipate the heat of such a thing. Remember the new mainboard-layout which shoud cope with that thing? Also an idea of Intel.
> Why do they need to compare anything except clocks? Well, because AMD is wiping the floor with them, that's why.
Quite the contrary. AMD has introduced the X+ rating for that reason. The problem is totally self-made. They've developed a design which has a better performance (Banias/Dothan...) at even lower clock speed. Now they have a problem to place that chip against its own products.
Elevator seeking is looking at the current request queue and bundle requests which are close together to minimise head movement. This is indeed old. IRC, Linux had it since 2.2 something.
The anticipatory scheduler tries to anticipate future requests (who would have guessed that?), and is relatively new
> Additionally, most Nazi imagery is illegal in Germany, regardless of context or medium.
Nazi imagery is not illegal regardless of the context or the medium. It is illegal without appropriate historical context/annotation.
The German government deemed that a game for leisure doesn't provide the appropriate historical context, no matter how many soldiers and Nazis you may kill in it. There are ample German documentations and educational material all containing Nazi imagery. It is the single most important part in German history curricula. However, you'll probably have a hard time finding "Der Ewige Jude" uncut
> If I recall correctly, the military budget is about $400bn.
That is without the supplemental fundings (each roughly $60bn for each fiscal year).
Fun with figures: $521 billion is the projection of the deficit fot the FY 2004. In the year 2003 the U.S. spent $318 billion on interests. NASA: $15 Billion, Education: $61 Billion
> I believe our current president's plan will be significantly more financially sound.
Because of his administrations previous financially sound budgets? Or their previous exact estimates on financial matters?
I don't think it is a particular ethic, as there research insitutes which concentrate on the facial part alone. IRC, the reasoning for the no-face design is, that when a robot has an actual face, people are trying to interprete its expressions. A hard to read face gives people a bad feeling. So, they are developing independently from the robots faces which can express "feelings".
Robots have a different association in Japanese culture. In Western pop culture the first reference to a robot I can think of is Maria from Metropolis, in Japan Astro Boy. So, I'd say the bad feeling is also partly rooted in culture.
> It is a lot harder to [...] attach [...] emotion to something that's faceless and non-human looking, [...]
Um, I'd like to refer to Tamagotchis. It is not uncommon that people attach feelings to things.
> And what is the reason?
The US doesn't have a national ID. And the people (or at least those on Slashdot) are opposed to it because of privacy/security concerns.