SFTP is fundamentally and intimately tied to the SSH protocol which is rather maddening if you do not trust your clients. You can offer SFTP access without SSH access to someone, but it involves getting all the settings right (make sure you do not allow port forwardings!). It is not so bad if you can throw an extra IP + an extra chroot'ed (or virtualized/jailed) SSH daemon at the problem, but without that, you need to get the settings right for each individual user.
Give me HTTPS WebDAV any day with its readable configuration files and fine-grained permissions.
At US$0.10 / kilowatt hour, that would be $120 worth of juice in a new laptop.
At wholesale untaxed rates (we are talking developing countries after all), you should be able to get electricity at significantly lower prices than that, and the price for heating should be even lower.
You don't replace wings. Gearboxes are only replaced if they fail; their design life time is supposed to be as long as the life time of the entire turbine (at least 20 years).
In my native Denmark, format shifting for personal use is legal; it's even legal to circumvent copy protection if that's the only way you can listen to the music you've purchased.
This may sound sane, but you forget that it is illegal to receive help when copying digital data. Basically Denmark is discriminating against the technically inept.
Precisely where the border is has not been established in case law, AFAIK. Am I allowed to tell you what CSS is, if I know you'll be using the knowledge to rip DVD's? Does the clause only trigger if I actually put your DVD into your DVD drive and click copy?
Analog copying is a bit more sane; you are allowed to help a friend photocopy a book. Assuming that you are using an analog photocopier, of course.
A Molniya orbit has the disadvantage that the apogee is over the area you want to watch. The X-37B seems to prefer being quite low; I do not believe you could construct a useful Molniya orbit with such a low apogee. At perigee it would be extremely low and quite fast, which means lots of air resistance.
The reason that most buildings in cold climates don't use heat pumps is that other forms of heating are cheaper or that the investment does not pay off.
Even Greenland is implementing air-air heat pumps, and thermodynamically they would do much better by using sea water. In Sweden, they use "bergvärme" (drilling down ~100m to get to temperatures constantly above 0C). In Denmark direct electric heating is not legal as the primary heat source for a home (with some exceptions).
The amount of people living in climates colder than Greenland is insignificant, and the population density in such places is often low enough that they can get by entirely on cheap renewable energy anyway, so efficiency is not something worth worrying about.
I guess the only reasonable thing would have been to move the plants further away from the sea, but then you don't have the emergency source of cooling water.
You are also missing the non-emergency cooling. Relatively old-fashioned reactors like the ones at Fukushima run at a mere 500K or so. In order to extract electricity from steam at such a low temperature, you need effective cooling, preferably down to perhaps 300K. Coal-fired power plants and some newer nuclear designs run at higher temperatures and so need comparatively less cooling. If you are running at 1000K, it does not matter so much if your cooling sucks and you only get down to 400K. That is why most nuclear power plants are placed near large rivers or the sea, and part of the reason why the waste heat is very rarely used for district heating.
If the reactors kept running, they would have had no trouble keeping themselves cool just as they were before the Quake. In other words, business would have continued as normal.
The generators of almost all large power stations shut down if they lose connection to the grid. Typically, only smaller power stations can run their own power "island".
You can argue that the power stations should have been built to run in island mode, but there are a lot of other things which are done better on more modern reactor designs.
If companies don't have to pay taxes in the US, then it's a HUGE incentive for them to move as much as possible to the US.
This applies to people too. Which leads to the race to the bottom, where all countries slash the taxes to zero except for those too poor to be able to easily escape taxation.
It will get those who have millions and want to spend it.
Except if a person pretends that their company bought something and used it, when they are actually using it privately. It can be quite difficult to tell whether something was a legitimate business expense.
SSL is fundamentally broken. It only allows one signature of a certificate. If it allowed multiple signatures, anyone could sign the certificate, and you could do stuff like check if your friends trust this certificate, or whether your bank does, and so on. Just like PGP/GPG.
Sensible sites would get their certificates signed by multiple authorities, and this would make it possible for browser users to disable e.g. Comodo certificates without losing access to a significant part of the WWW.
I believe it depends on whether you count projects in general or add weight to them depending on how much the projects are used. The vast majority of Free Software projects are tiny and driven by at most a handful of developers, and used by hardly anyone. Almost all of those developers would likely be willing to offer you the code under a proprietary license, if you pay enough.
There are much fewer high profile projects, and they tend to have many developers. Only a few of them offer proprietary licenses.
The caveat though is that DC at higher voltages (~120VDC) is dangerous, and not exactly something you want in a residential setting.
Whereas 120VAC is completely harmless? The reality is that both are dangerous. Still, most of the world uses AC 230V or higher, making 120VDC seem rather feeble.
As well you'd need one hell of a transformer to do the ac to dc conversion for the large motors in washers, dryers etc.
The washers and so on tend to have variable speed motors these days, and therefore frequency conversion. If you're frequency converting anyway, you are better off starting with DC.
With DC, your muscles tighten in one direction. So if you get your hand on something and the current starts flowing through you, you can't let go. It's a death sentence.
With AC, if the current hits your heart, your heart fibrillates. It's a death sentence.
Either way, the number of direct deaths from electricity is insignificant. The real danger from electricity is fire.
Refrigerator, dishwasher, clothes washer, clothes dryer, heat pump etc all use AC motors.
AC yes, 50Hz or 60Hz no. Not unless they're old and should be replaced with something efficient. For motors you want variable frequency to easily and efficiently change speed, and variable frequency is easier to get from DC.
Creating copies of desirable cars has a long history. If you only do it for yourself you are unlikely to be sued, and in some cases it may even be legal.
Slashdot Mirror
SFTP is fundamentally and intimately tied to the SSH protocol which is rather maddening if you do not trust your clients. You can offer SFTP access without SSH access to someone, but it involves getting all the settings right (make sure you do not allow port forwardings!). It is not so bad if you can throw an extra IP + an extra chroot'ed (or virtualized/jailed) SSH daemon at the problem, but without that, you need to get the settings right for each individual user.
Give me HTTPS WebDAV any day with its readable configuration files and fine-grained permissions.
At US$0.10 / kilowatt hour, that would be $120 worth of juice in a new laptop.
At wholesale untaxed rates (we are talking developing countries after all), you should be able to get electricity at significantly lower prices than that, and the price for heating should be even lower.
You don't replace wings. Gearboxes are only replaced if they fail; their design life time is supposed to be as long as the life time of the entire turbine (at least 20 years).
I only wonder how long it will take for theaters to upgrade their equipment. I understand it's quite expensive.
Theatres have mostly made the digital switch by now. Doubling frame rate in a digital setup should not cost much, if anything.
So if you destroy the CD after ripping it then it's okay?
No.
Aren't all digital move actions from one storage device to another copies (after which the original may or may not be erased/reallocated)
Yes.
Format shifting is not forbidden by UK law, but copying is. Format shifting can so far only be achieved by copying, which is illegal.
The GP wanted to avoid the law by not format shifting and doing a pure copy instead. This does not work.
In my native Denmark, format shifting for personal use is legal; it's even legal to circumvent copy protection if that's the only way you can listen to the music you've purchased.
This may sound sane, but you forget that it is illegal to receive help when copying digital data. Basically Denmark is discriminating against the technically inept.
Precisely where the border is has not been established in case law, AFAIK. Am I allowed to tell you what CSS is, if I know you'll be using the knowledge to rip DVD's? Does the clause only trigger if I actually put your DVD into your DVD drive and click copy?
Analog copying is a bit more sane; you are allowed to help a friend photocopy a book. Assuming that you are using an analog photocopier, of course.
The UK law does not forbid format shifting, it forbids copying.
A Molniya orbit has the disadvantage that the apogee is over the area you want to watch. The X-37B seems to prefer being quite low; I do not believe you could construct a useful Molniya orbit with such a low apogee. At perigee it would be extremely low and quite fast, which means lots of air resistance.
Tell that to Iceland. Idiot.
The reason that most buildings in cold climates don't use heat pumps is that other forms of heating are cheaper or that the investment does not pay off.
Even Greenland is implementing air-air heat pumps, and thermodynamically they would do much better by using sea water. In Sweden, they use "bergvärme" (drilling down ~100m to get to temperatures constantly above 0C). In Denmark direct electric heating is not legal as the primary heat source for a home (with some exceptions).
The amount of people living in climates colder than Greenland is insignificant, and the population density in such places is often low enough that they can get by entirely on cheap renewable energy anyway, so efficiency is not something worth worrying about.
I guess the only reasonable thing would have been to move the plants further away from the sea, but then you don't have the emergency source of cooling water.
You are also missing the non-emergency cooling. Relatively old-fashioned reactors like the ones at Fukushima run at a mere 500K or so. In order to extract electricity from steam at such a low temperature, you need effective cooling, preferably down to perhaps 300K. Coal-fired power plants and some newer nuclear designs run at higher temperatures and so need comparatively less cooling. If you are running at 1000K, it does not matter so much if your cooling sucks and you only get down to 400K. That is why most nuclear power plants are placed near large rivers or the sea, and part of the reason why the waste heat is very rarely used for district heating.
If the reactors kept running, they would have had no trouble keeping themselves cool just as they were before the Quake. In other words, business would have continued as normal.
The generators of almost all large power stations shut down if they lose connection to the grid. Typically, only smaller power stations can run their own power "island".
You can argue that the power stations should have been built to run in island mode, but there are a lot of other things which are done better on more modern reactor designs.
But if the plant had continued running would there have been power to run the cooling system?
No. The generators are linked to the grid. The reactor was not built to work as an "island" power system.
Good luck trying to improve the efficiency of a space heater.
That is completely trivial. It's called a heat pump. Direct electric heating is almost always stupid.
If companies don't have to pay taxes in the US, then it's a HUGE incentive for them to move as much as possible to the US.
This applies to people too. Which leads to the race to the bottom, where all countries slash the taxes to zero except for those too poor to be able to easily escape taxation.
It will get those who have millions and want to spend it.
Except if a person pretends that their company bought something and used it, when they are actually using it privately. It can be quite difficult to tell whether something was a legitimate business expense.
Sales tax can be gamed too. For one thing, the US still has that Internet sales loophole, which seems to have broad support on Slashdot.
The youtube video doesn't really prove anything. The lag could just as easily be introduced by the TV or the game.
SSL is fundamentally broken. It only allows one signature of a certificate. If it allowed multiple signatures, anyone could sign the certificate, and you could do stuff like check if your friends trust this certificate, or whether your bank does, and so on. Just like PGP/GPG.
Sensible sites would get their certificates signed by multiple authorities, and this would make it possible for browser users to disable e.g. Comodo certificates without losing access to a significant part of the WWW.
I believe it depends on whether you count projects in general or add weight to them depending on how much the projects are used. The vast majority of Free Software projects are tiny and driven by at most a handful of developers, and used by hardly anyone. Almost all of those developers would likely be willing to offer you the code under a proprietary license, if you pay enough.
There are much fewer high profile projects, and they tend to have many developers. Only a few of them offer proprietary licenses.
The caveat though is that DC at higher voltages (~120VDC) is dangerous, and not exactly something you want in a residential setting.
Whereas 120VAC is completely harmless? The reality is that both are dangerous. Still, most of the world uses AC 230V or higher, making 120VDC seem rather feeble.
As well you'd need one hell of a transformer to do the ac to dc conversion for the large motors in washers, dryers etc.
The washers and so on tend to have variable speed motors these days, and therefore frequency conversion. If you're frequency converting anyway, you are better off starting with DC.
With DC, your muscles tighten in one direction. So if you get your hand on something and the current starts flowing through you, you can't let go. It's a death sentence.
With AC, if the current hits your heart, your heart fibrillates. It's a death sentence.
Either way, the number of direct deaths from electricity is insignificant. The real danger from electricity is fire.
Refrigerator, dishwasher, clothes washer, clothes dryer, heat pump etc all use AC motors.
AC yes, 50Hz or 60Hz no. Not unless they're old and should be replaced with something efficient. For motors you want variable frequency to easily and efficiently change speed, and variable frequency is easier to get from DC.
So much more reason to applaud when we happen to be on the right side. Otherwise it just gets too depressing.
Creating copies of desirable cars has a long history. If you only do it for yourself you are unlikely to be sued, and in some cases it may even be legal.