Can't they measure the cloud cover by satellites? And bring that in corellation with the solar activity?
These experiments are good to understand WHY the cloud cover changes, which is interesting of course. But to determine the actual cchange of cloud cover, it should be measured.
What do you mean? This sounds interesting. In my area everything seems to be published in these journals, some things from industry only in patents, or it is not published at all. Ok some information could be found in old PhD thesises, which could only be found at the university where they were published. Are there other sources?
Like this or this? Nearly every major historic scientific publication can be found on the internet nowadays. Biology is not my area though, so I will not try to dig deeper in this.
Are you suggesting that every harmful substance can be sold in the supermarket? I prefer that I can go shopping and that I can just try whatever looks good, without needing to be worried that one of these things is a big health risk.
I would not deny that CO2 has an effect on climate. But something is really wrong with the way the result of these models are communicated.
In the public media we read that the model predicts an increase of the average global temperature by 1 dot something degrees. But what these people don't say is that there is an uncertainty in these values. Stating a range of uncertainty might be unscientific because there are too many known systematic errors and most likely other unknown systematic errors in the model. But without stating such a range people are taking these predictions as absolutely certain values. Climatologists should state clearly that, while it is obvious that there is an effect, their preditions are not certain, and that we do not really know what the earth will be like in the future.
Yes but as someone working in physics I also have my doubt in their modelling of the whole planet Earth. In physics we develop theoretical models trying to reproduce experimental results. Often these models re wrong, and have to be adapted to better fit the experimental results. And these are much more primitive models than one describing the whole Earth. I can't imagine how long it would take to prove that such a model really resembles reality. And I don't know, did they ever go through this, by simulating real states of the planet and comparing the development in the model to that in reality? How could you do that in a satisfying manner?
The earth seems way too complex to me to really model it. It is an unstable chaotic system, with lots of processes emphasizing and others counteracting changes. This can easily be simulated wrong.
But of course the absorption of CO2 is a simple measurable fact. It is obvious that this will cause changes to the climate, and that we should be wary about this. I just say that I don't believe that we can predict the resulting changes.
Yeah well that Desertec project was proposed before the revolutions in Northern Africa. These plants in Northern Africa are not really a good solution, their security has been a point of criticism from the beginning.
A project like this would fit much better for the USA or China. It is something that people should think about there.
There is a lot going on about nuclear plants in Germany. Maybe I missed it, but I did not read anything about it on Slashdot.
Germany plans to completely phase out off nuclear power over the next 11 years, and to massively build up renewable energy power plants.
Germany has 17 nuclear reactors, producing about 20% of total produced power. The seven oldest reactors were shut down after the Fukushima incident. Out of the remaining 10 reactors, 6 are currently shut down for scheduled mainenance, leaving only 4 nuclear reactors running.
Normally Germany is mostly exporting power. During the last 2 months the power import/export was about balanced, with 7-8 reactors running.
Italy turned off the last nuclear power plant in 1990. The Swiss are really not the only ones doing this. On a sidenote, Italy now imports lots of power from France, mostly through the nights. It is not that Italy could not produce enough power on its own, it is just that France nearly gives away the power through the night because of their high number of nuclear reactors that just keep running.
Related to this, Desertec should also be mentioned. This is a renewable energy project targeted at providing 15% of Europe's power. A lot of it should come from solar power plants in northern Africa.
Of course you can not read a CD if the reflective metal layer is removed. But the data is stored in tiny pits that are printed into the polycarbonate layer. If the polycarbonate is not damaged too much, the CD might be readable when a new metal layer is applied.
Yes his numbers are totally off. But increasing this by a factor of 1000 makes it a square with 630km length coverede with solar cells to supply the whole world. Supplying the whole world with solar power is NOT a problem of the area needed.
Yes and where did the I-134 come from last week? It's half-life period is about 54 minutes. Same problem as Cl-38. It must have formed short before, and it can only be a product of fission or of neutron absorption.
These can NOT be remainings from 2 weeks ago. With a half live of 54 minutes for I-134, the number of I-134 atoms would go down by a factor of 10^113 within 2 weeks. If there is just one atom left, the original amount must have been more than the mass of the whole universe.
I am not sure how I-134 is produced. If it comes directly from the fission, I would say the fission is definately still going on.
Dunno what they sell you, but the scratch-proof anti-glare coating of my glasses is still finee after 3 years. And I am not treating my glasses well.
Might be a result of German customer rights. If these coatings would not last for two years, this would fall under waranty and I would demand a replacement for the glasses.
No, it's about killing the cell, since a cell does not survive an electron microscope, and it's probably no possible to see a living cell with a scanning near-field microscope or an atomic fore microscope. For a scanning tunneling microscope it would have to be covered with a conducting layer,so that one is out too.
A while ago I was reading an article about these brain activity scans. It was saying that it is not really known what is measured in these scans. And it was said that it is likely that these scans just show an increased blood flow, which is a reaction to increased heat. The purpose of this blood flow is to cool that part of the brain down. So the brain scans just show the increased cooling activity of the blood flow in active brain parts, not the activity itself.
It is known that mobile phone radiation causes a slight heating. So it would make sense if the brain reacts with increased cooling by a stronger blood flow.
I did not read TFA though.
That is not so useful to fire on one ship from another since you cannot shoot over the horizon. Missiles can sink your ship before you get in range. Unless you get down all of them with the laser, of course.
Slashdot Mirror
Can't they measure the cloud cover by satellites? And bring that in corellation with the solar activity?
These experiments are good to understand WHY the cloud cover changes, which is interesting of course. But to determine the actual cchange of cloud cover, it should be measured.
What do you mean? This sounds interesting. In my area everything seems to be published in these journals, some things from industry only in patents, or it is not published at all. Ok some information could be found in old PhD thesises, which could only be found at the university where they were published. Are there other sources?
Like this or this? Nearly every major historic scientific publication can be found on the internet nowadays. Biology is not my area though, so I will not try to dig deeper in this.
"I wish he was dead" might be seen as incitement to murder in some Western countries, which would get you into jail.
Are you suggesting that every harmful substance can be sold in the supermarket? I prefer that I can go shopping and that I can just try whatever looks good, without needing to be worried that one of these things is a big health risk.
An infection with a usb stick is much easier to do than a hidden manipulation of an analog control unit though.
I would not deny that CO2 has an effect on climate. But something is really wrong with the way the result of these models are communicated.
In the public media we read that the model predicts an increase of the average global temperature by 1 dot something degrees. But what these people don't say is that there is an uncertainty in these values. Stating a range of uncertainty might be unscientific because there are too many known systematic errors and most likely other unknown systematic errors in the model. But without stating such a range people are taking these predictions as absolutely certain values. Climatologists should state clearly that, while it is obvious that there is an effect, their preditions are not certain, and that we do not really know what the earth will be like in the future.
Yes but as someone working in physics I also have my doubt in their modelling of the whole planet Earth. In physics we develop theoretical models trying to reproduce experimental results. Often these models re wrong, and have to be adapted to better fit the experimental results. And these are much more primitive models than one describing the whole Earth. I can't imagine how long it would take to prove that such a model really resembles reality. And I don't know, did they ever go through this, by simulating real states of the planet and comparing the development in the model to that in reality? How could you do that in a satisfying manner?
The earth seems way too complex to me to really model it. It is an unstable chaotic system, with lots of processes emphasizing and others counteracting changes. This can easily be simulated wrong.
But of course the absorption of CO2 is a simple measurable fact. It is obvious that this will cause changes to the climate, and that we should be wary about this. I just say that I don't believe that we can predict the resulting changes.
Yeah well that Desertec project was proposed before the revolutions in Northern Africa. These plants in Northern Africa are not really a good solution, their security has been a point of criticism from the beginning.
A project like this would fit much better for the USA or China. It is something that people should think about there.
There is a lot going on about nuclear plants in Germany. Maybe I missed it, but I did not read anything about it on Slashdot.
Germany plans to completely phase out off nuclear power over the next 11 years, and to massively build up renewable energy power plants.
Germany has 17 nuclear reactors, producing about 20% of total produced power. The seven oldest reactors were shut down after the Fukushima incident. Out of the remaining 10 reactors, 6 are currently shut down for scheduled mainenance, leaving only 4 nuclear reactors running.
Normally Germany is mostly exporting power. During the last 2 months the power import/export was about balanced, with 7-8 reactors running.
Italy turned off the last nuclear power plant in 1990. The Swiss are really not the only ones doing this. On a sidenote, Italy now imports lots of power from France, mostly through the nights. It is not that Italy could not produce enough power on its own, it is just that France nearly gives away the power through the night because of their high number of nuclear reactors that just keep running.
Related to this, Desertec should also be mentioned. This is a renewable energy project targeted at providing 15% of Europe's power. A lot of it should come from solar power plants in northern Africa.
Of course you can not read a CD if the reflective metal layer is removed. But the data is stored in tiny pits that are printed into the polycarbonate layer. If the polycarbonate is not damaged too much, the CD might be readable when a new metal layer is applied.
Just look at the map
Yes his numbers are totally off. But increasing this by a factor of 1000 makes it a square with 630km length coverede with solar cells to supply the whole world. Supplying the whole world with solar power is NOT a problem of the area needed.
It's just 3 mirrors for 3d, in the form of the corner of a cube.
Yes and where did the I-134 come from last week? It's half-life period is about 54 minutes. Same problem as Cl-38. It must have formed short before, and it can only be a product of fission or of neutron absorption.
These can NOT be remainings from 2 weeks ago. With a half live of 54 minutes for I-134, the number of I-134 atoms would go down by a factor of 10^113 within 2 weeks. If there is just one atom left, the original amount must have been more than the mass of the whole universe.
I am not sure how I-134 is produced. If it comes directly from the fission, I would say the fission is definately still going on.
The use of encrypting the login is that the passwords are save from being sniffed. Too many people use the same password for multiple sites.
Dunno what they sell you, but the scratch-proof anti-glare coating of my glasses is still finee after 3 years. And I am not treating my glasses well.
Might be a result of German customer rights. If these coatings would not last for two years, this would fall under waranty and I would demand a replacement for the glasses.
I think that scanning tunneling microscope does not make sense. Bah no edit
No, it's about killing the cell, since a cell does not survive an electron microscope, and it's probably no possible to see a living cell with a scanning near-field microscope or an atomic fore microscope. For a scanning tunneling microscope it would have to be covered with a conducting layer,so that one is out too.
You think wealth is not defined by economic strength, but by its 1st derivative, the economic growth?
A while ago I was reading an article about these brain activity scans. It was saying that it is not really known what is measured in these scans. And it was said that it is likely that these scans just show an increased blood flow, which is a reaction to increased heat. The purpose of this blood flow is to cool that part of the brain down. So the brain scans just show the increased cooling activity of the blood flow in active brain parts, not the activity itself.
It is known that mobile phone radiation causes a slight heating. So it would make sense if the brain reacts with increased cooling by a stronger blood flow.
I did not read TFA though.
I don't have any of these problems with this software.
No idea how good it is though. I hardly notice that it is running, even on my old 1GHz laptop.
If someone gives away his facebook login just to get a job, I would agree with you.
That is not so useful to fire on one ship from another since you cannot shoot over the horizon. Missiles can sink your ship before you get in range. Unless you get down all of them with the laser, of course.