For all the whining about how this makes it so easy for script kiddies, consider that it also makes it so easy for admins who are not in tune with the latest script kiddy 'sploits. This allows them to quickly test their networks in click-n-drool fashion. This can be a very useful tool.
Don't forget to pick hardware that won't require lots of care. My suggestion is to get one of those VIA fanless jobbers and net boot it. That way, there's no fans do die, no hard drive to die, and no noise to disturbe library patrons.
Do all four sides of the sears tower get direct sunlight? How many hours of full sunlight? The generating numbers for photovoltaic panels are always full sunlight output. Notice in the article how only the top and one side (the south side in the nothern hemisphere) is clad. Aiming photovoltaics east or west or north is not cost effective.
And how much energy does it take to produce a single square foot. There is a basic falicy that a lot of folks seem to miss... The same thing holds for all current forms of solar energy.
Yes, I did RTFA. The bomb is in US territorial waters. The Navy doesn't have to put it under a visable guard patrol. If a foreign vessle enters US territorial waters without permission, they will intercept it and sink it. Furthermore, I doubt very much the bomb has the detonation capsule on board. Without it, the bomb presents little intelligence value. Why would you ever fly a practice mission with an armed bomb? The Air Force is very careful with nuclear weapons, I see no reason that they would expose themselves to risks they didn't have to take. Furthermore, the government doesn't have to worry about this guy getting it off the sea floor. Tthe Navy never has to worry about this guy doing it on his own. For one, inside US territorial waters, the US owns the wreck. For another, his possession of the material is illegal.
The Navy decided that this bomb was not worth the risks, and they have no challenger to take it away from them.
There's a big differnence between the one of the coast of Georgia and the one that was off the coast of Spain. The bomb is in US territorial waters, and the Navy can effectively guard that position. However, it was not certain that the bomb off the coast of Spain was in their territorial waters. By the international laws of the sea, the first person to tie a line to salvage is entitled to it. Both the US and the Soviets were desperately looking for that bomb. It represented an intelligence goldmine. The Soviets were relegated to looking outside Spanish territorial waters, whereas the US had the run of both. The US Navy salvage team was able to secure and grab the bomb from the bottom of the ocean. It was just inside Spanish territorial waters. It is exactly for this reason that the US Navy salvage team is one of the elite parts of the Navy. They could very easily be called on to find and recover a sunken ballistic missile submarine in international waters.
Likewise, those who think that Navy deep diving vessels, such as Alvin, are purely for research are kidding themselves.
An advantage you have is the financial resources to make support arrangements for open source software. These arrangements can be standard, such as purchasing support from a company that expressly supports the OSS project. Or, it could be less traditional, such as finding the authors and making arrangements with them in advance. If you have the financial resources to do so, I would strongly suggest making support a criteria of selection.
The author's a complete dickhead, but the book is short and gets the point across. The material can by quite boring and the author doesn't exactly spice it up. Anyway, it's by Streetman and Banerjee; amazon it.
Also there are a few graduate course materials at MIT's courseware that may be helpful.
If I apply the right to work argument, then the stupendous salaries that they are always bitching about should go way down, right? It's supply and demand, right? Is there something I'm missing here?
I completely agree with you. The public school system need only spend on football what it spends on other electives like language or art. If the art students can go on to be professional artists for such a nominal extra investment, why can't the football players do the same? In fact, I'll bet the success ratio of art students being able to be professional artists is greater than that of football players. Perhaps there would be even more professional football players if we cut the funding of football!
In Austin, at least you're wrong. Austin conducted a large survey where they asked citizens to describe their desired future scenario for growth. The largest group said they wanted a radical shift from the status quo. See:
The Austin Chronical
Urbanism is more than just making high density housing development, though. If you'd like to learn more about sububarnism and urbanism, I suggest a book. There's a great one called Suburban Nation. There's also the more academic The Geography of Nowhere.
I highly recommend reading one of these books. Even if you come away thinking that the idea within are crap, it at least makes you think of the built environment in a critical way, instead of just accepting it as a given.
And one last question. Think to yourself of your fondest memory of a town or city. Were you on foot, bike, public transit, or in car? Everyone I have ever asked that to responds that they were walking.
While you may doubt the real difference between a traditional supercomputer and a cluster, let me assure you that it is not industry bull. A cluster can efficiently deal with tasks that are easily parallelizable and don't require much communication between the nodes. There are problems that are not easily parallelizable and/or require lots of communication between nodes. A cluster will not do in this case. There is more to the super in supercomputer than just MFLOPs.
In previous years, clusters weren't nearly as cost effective, and it kept many commercial customers buying supercomputers. However, the current market presents very few commercial buyers. The majority buyers are research institutions and government. From a commercial perspective, the death of this expertise can be problematic. However, the US government has a national security interest in keeping the supercomputer industry alive. The government uses these computers for classified cryptographic and weapons work. It is widely believed that in the past, the NSA gave contracts out to Cray simply to keep them in business and perserve a viable American supercomputer industry.
Although one could simply argue that if that is the case, the government should undertake this effort on their own. However, it is unlikely to be cost effective. The costs involved may simply be too large for the government to handle alone.
Making an example out of somebody is an injustice. The guilty has a right to be judged and sentenced on the merits of their particular case. Making an example of somebody relates not to the accused but to the population at large. If more drastic sentances are needed, this is an issue for legislation, not prosecution.
Additionally, it takes energy to grow food. In fact, the embodied energy in food has been steadily rising over time. This energy goes to fertilizer, trucks, pumping irrigation water, etc. In fact, according to some research, currently you put almost as much energy into growing food as you get out. One has to be careful with these bio sources of fuel; you can end up in a net energy loss situation.
Hydrogen can just as easily be produce through renewable resources such as wind, solar, tidal, and hydro power, as well as nuclear.
It is true that you can electrolyze water, but it's far cheaper to catalyze natural gas.
Centralizing the generation of the fuel at a hydrogen-generating station (even if run by fossil fuels) is still far better for the environment than spreading a bunch of fuel-burners all over our highways, as is the situation we currently have.
A centralized electrolyzer will operate at a lower efficiency than a conventional engine. The hydrogen then needs to transported to the hydrogen vehicle. This is much less efficient than just burning the fossil fuels in the vehicle.
Perhaps a solution to our problems involves driving less and using less energy.
This hydrogen thing will solve all of our problems. It must be a silver bullet for air pollution. I just can't imagine why hydrogen couldn't fix everything. I mean, hydrogen burns with zero emissions, right? Hrmm. I wonder where hydrogen comes from...
The hydrogen economy is a farce promogulated by existing energy companies who stand to make lots of money providing hydrogen by burning more and more fossil fuels.
They won't deprive you of any of your freedoms over that alone...
Government investigations of this sort are harmful. The government is investigating, with no probable cause of a crime, a person for simple act of civic life. This person simply wanted to use their rights under the FOIA to see some information.
The idea that you may be the subject of government investigations for activities such as citizen government oversight has a chilling effect on democracy. The questions that the agents were asking also has a chilling effect. Being a member of activist organizations is not suspicous activity. The actions of government in these cases have the effect of sending a message: Don't try to use your rights to investigate us or change our policies, or we will come down on you. These tactics are not theoretical. Why do you think people like MLK had FBI files?
Don't use carpet glue. I use hot-glue (second in power only to duct-tape). I have noticed no fumes from the installation. IIRC, it is the adhesives fixing carpet to the floor that outgass, not the padding.
Re:SIlence is a pipe dream for me
on
A Silent PC Solution?
·
· Score: 4, Informative
Glue carpet padding all over the inside the case. It costs about $1. It makes a big difference. It won't make your case really hot; your computer is cooled by forcing air through it, not radiation.
Evaporation refridgeration has been used in Africa for hundreds if not thousands of years. Typically, it consists of a plate and an inverted pot on top of it. The inverted pot is made of ceramic and is pourous. The plate has water on it. The space inside gets cool.
Slashdot Mirror
For all the whining about how this makes it so easy for script kiddies, consider that it also makes it so easy for admins who are not in tune with the latest script kiddy 'sploits. This allows them to quickly test their networks in click-n-drool fashion. This can be a very useful tool.
Don't forget to pick hardware that won't require lots of care. My suggestion is to get one of those VIA fanless jobbers and net boot it. That way, there's no fans do die, no hard drive to die, and no noise to disturbe library patrons.
Methanol comes from petroleum
How much coal do we really have left in the world?
A lot. Just the US reserves alone are estimated to last at least 300 more years.
Do all four sides of the sears tower get direct sunlight? How many hours of full sunlight? The generating numbers for photovoltaic panels are always full sunlight output. Notice in the article how only the top and one side (the south side in the nothern hemisphere) is clad. Aiming photovoltaics east or west or north is not cost effective.
And how much energy does it take to produce a single square foot. There is a basic falicy that a lot of folks seem to miss ... The same thing holds for all current forms of solar energy.
Actually, this is a basic falacy that you have missed. While what you say is true for ethanol, it is not true for modern photovoltaics (and hasn't been for some time). As for photothermal, you are also dead wrong.
Yes, I did RTFA. The bomb is in US territorial waters. The Navy doesn't have to put it under a visable guard patrol. If a foreign vessle enters US territorial waters without permission, they will intercept it and sink it. Furthermore, I doubt very much the bomb has the detonation capsule on board. Without it, the bomb presents little intelligence value. Why would you ever fly a practice mission with an armed bomb? The Air Force is very careful with nuclear weapons, I see no reason that they would expose themselves to risks they didn't have to take. Furthermore, the government doesn't have to worry about this guy getting it off the sea floor. Tthe Navy never has to worry about this guy doing it on his own. For one, inside US territorial waters, the US owns the wreck. For another, his possession of the material is illegal.
The Navy decided that this bomb was not worth the risks, and they have no challenger to take it away from them.
There's a big differnence between the one of the coast of Georgia and the one that was off the coast of Spain. The bomb is in US territorial waters, and the Navy can effectively guard that position. However, it was not certain that the bomb off the coast of Spain was in their territorial waters. By the international laws of the sea, the first person to tie a line to salvage is entitled to it. Both the US and the Soviets were desperately looking for that bomb. It represented an intelligence goldmine. The Soviets were relegated to looking outside Spanish territorial waters, whereas the US had the run of both. The US Navy salvage team was able to secure and grab the bomb from the bottom of the ocean. It was just inside Spanish territorial waters. It is exactly for this reason that the US Navy salvage team is one of the elite parts of the Navy. They could very easily be called on to find and recover a sunken ballistic missile submarine in international waters.
Likewise, those who think that Navy deep diving vessels, such as Alvin, are purely for research are kidding themselves.
becasue it's easy to take your dog, 3 kids, and pull you boat from a Bike.
You've obviously never been to the Netherlands.
An advantage you have is the financial resources to make support arrangements for open source software. These arrangements can be standard, such as purchasing support from a company that expressly supports the OSS project. Or, it could be less traditional, such as finding the authors and making arrangements with them in advance. If you have the financial resources to do so, I would strongly suggest making support a criteria of selection.
The author's a complete dickhead, but the book is short and gets the point across. The material can by quite boring and the author doesn't exactly spice it up. Anyway, it's by Streetman and Banerjee; amazon it.
Also there are a few graduate course materials at MIT's courseware that may be helpful.
If I apply the right to work argument, then the stupendous salaries that they are always bitching about should go way down, right? It's supply and demand, right? Is there something I'm missing here?
I completely agree with you. The public school system need only spend on football what it spends on other electives like language or art. If the art students can go on to be professional artists for such a nominal extra investment, why can't the football players do the same? In fact, I'll bet the success ratio of art students being able to be professional artists is greater than that of football players. Perhaps there would be even more professional football players if we cut the funding of football!
In Austin, at least you're wrong. Austin conducted a large survey where they asked citizens to describe their desired future scenario for growth. The largest group said they wanted a radical shift from the status quo. See: The Austin Chronical
Urbanism is more than just making high density housing development, though. If you'd like to learn more about sububarnism and urbanism, I suggest a book. There's a great one called Suburban Nation. There's also the more academic The Geography of Nowhere.
I highly recommend reading one of these books. Even if you come away thinking that the idea within are crap, it at least makes you think of the built environment in a critical way, instead of just accepting it as a given.
And one last question. Think to yourself of your fondest memory of a town or city. Were you on foot, bike, public transit, or in car? Everyone I have ever asked that to responds that they were walking.
While you may doubt the real difference between a traditional supercomputer and a cluster, let me assure you that it is not industry bull. A cluster can efficiently deal with tasks that are easily parallelizable and don't require much communication between the nodes. There are problems that are not easily parallelizable and/or require lots of communication between nodes. A cluster will not do in this case. There is more to the super in supercomputer than just MFLOPs.
In previous years, clusters weren't nearly as cost effective, and it kept many commercial customers buying supercomputers. However, the current market presents very few commercial buyers. The majority buyers are research institutions and government. From a commercial perspective, the death of this expertise can be problematic. However, the US government has a national security interest in keeping the supercomputer industry alive. The government uses these computers for classified cryptographic and weapons work. It is widely believed that in the past, the NSA gave contracts out to Cray simply to keep them in business and perserve a viable American supercomputer industry.
Although one could simply argue that if that is the case, the government should undertake this effort on their own. However, it is unlikely to be cost effective. The costs involved may simply be too large for the government to handle alone.
Making an example out of somebody is an injustice. The guilty has a right to be judged and sentenced on the merits of their particular case. Making an example of somebody relates not to the accused but to the population at large. If more drastic sentances are needed, this is an issue for legislation, not prosecution.
Additionally, it takes energy to grow food. In fact, the embodied energy in food has been steadily rising over time. This energy goes to fertilizer, trucks, pumping irrigation water, etc. In fact, according to some research, currently you put almost as much energy into growing food as you get out. One has to be careful with these bio sources of fuel; you can end up in a net energy loss situation.
Then perhaps we should be pouring money into higher density energy storage such as flywheels.
Hydrogen can just as easily be produce through renewable resources such as wind, solar, tidal, and hydro power, as well as nuclear.
It is true that you can electrolyze water, but it's far cheaper to catalyze natural gas.
Centralizing the generation of the fuel at a hydrogen-generating station (even if run by fossil fuels) is still far better for the environment than spreading a bunch of fuel-burners all over our highways, as is the situation we currently have.
A centralized electrolyzer will operate at a lower efficiency than a conventional engine. The hydrogen then needs to transported to the hydrogen vehicle. This is much less efficient than just burning the fossil fuels in the vehicle.
Perhaps a solution to our problems involves driving less and using less energy.
This hydrogen thing will solve all of our problems. It must be a silver bullet for air pollution. I just can't imagine why hydrogen couldn't fix everything. I mean, hydrogen burns with zero emissions, right? Hrmm. I wonder where hydrogen comes from...
The hydrogen economy is a farce promogulated by existing energy companies who stand to make lots of money providing hydrogen by burning more and more fossil fuels.
get a PDA with 802.11 and a compact flash card (toshiba e740). Upload the pictures wirelessly. Very small. Can be had real cheap.
They won't deprive you of any of your freedoms over that alone...
Government investigations of this sort are harmful. The government is investigating, with no probable cause of a crime, a person for simple act of civic life. This person simply wanted to use their rights under the FOIA to see some information.
The idea that you may be the subject of government investigations for activities such as citizen government oversight has a chilling effect on democracy. The questions that the agents were asking also has a chilling effect. Being a member of activist organizations is not suspicous activity. The actions of government in these cases have the effect of sending a message: Don't try to use your rights to investigate us or change our policies, or we will come down on you. These tactics are not theoretical. Why do you think people like MLK had FBI files?
Don't use carpet glue. I use hot-glue (second in power only to duct-tape). I have noticed no fumes from the installation. IIRC, it is the adhesives fixing carpet to the floor that outgass, not the padding.
Glue carpet padding all over the inside the case. It costs about $1. It makes a big difference. It won't make your case really hot; your computer is cooled by forcing air through it, not radiation.
Evaporation refridgeration has been used in Africa for hundreds if not thousands of years. Typically, it consists of a plate and an inverted pot on top of it. The inverted pot is made of ceramic and is pourous. The plate has water on it. The space inside gets cool.