The parliament can enact a law and say "this law comes into effect on January 1st 2017, provided the public votes yes to referendum foo before that date".
That way the referendum is binding, sort of.
Nothing stops parliament from repealing that law on January 2nd, of course. (Or even on December 31st).
How extreme energies? Supernovas are pretty mainstream, and still much more powerful than anything achievable with current technology and a few billions.
Exactly. And the code for high energies can't the that buggy, orthe whole Big Bang thing would have fizzled.
And VM guests can't break out of the hypervisor... Oh wait, they can, if the hypervisor is buggy.
If the universe is a simulation, it is a pretty complex one. Bugs would be expected.
However, humanity has access to such a infinitesimal fraction of the universe, it would be unexpected to find bugs in simple parts like ours. The bugs would seem more likely in less tested parts of the code, like at extreme energies or very small distances.
Yes, you didn't read the thread. The argument was that the last mile providers who don't implement BCP38 should be blocked from the Internet. Last mile providers can only be blocked by the large backhaul providers, and they are never going to do that.
You don't implement BCP38 and any new DDoS prevention and mitigation standards, you become the first to be blocked upstream
The only ones who can do that are the large backhaul providers. Why would they annoy their customers by enforcing a policy that means they have to move less data? That would be a daft business move.
Even if they document the tests, if they can be gamed in a test representative of "normal usage", then the same gaming will kick in on actual "normal usage", and so the test will not have been gamed.
Normal usage will be viewing a different movie than the one they test with. If you can get viewers to only watch the test signal, over and over, then sure there is no variance between expected use and actual use. However, I did not buy my TV to watch a specific set of video clips in a specific sequence, repeatedly.
Your sound bar would be only using max 20 to 30 Watts, Peak is a useless measure because it is a measure the power the sound bar can pump out for a moment, if you try to drive it hard continuously it will just crap it self and you will very soon find yourself pushing the volume down to a level it can actually handle.
The AC has it right. 180W is marketing. It will never take that from the socket.
My supposedly "smart" Samsung TV detects when power saving activates on the attached device and puts up a bright white logo to inform me. The logo does not go away. At least it moves around, so the wear on the screen is somewhat even.
The only way to do power saving with modern TV's is to use ARC, and ARC support is just not very widespread yet.
But Power Companies, who rely on Energy Usage Tests to forecast demand and allow for it, do care.
You imply that power companies try to guess which items people buy, and how much they use them, and then use the Energy Usage Tests to figure out aggregate demand. This sounds highly improbable.
Absolute thrust does not matter all that much, as long as the thrust can actually lift the rocket + payload off the ground. Lower thrust means gentler acceleration which is nicer for cargo but especially for crew, if you want to man-rate one day.
Higher thrust also means you go faster before you escape the atmosphere. This increases maximum aerodynamic load.
F1 is a funny example. F1 tires are deliberately crap; it's part of the contract that the manufacturer isn't allowed to deliver good tires.
If Formula 1 teams could buy any tires they want, the tires would have better grip, work over a wider range of temperatures, and there would be no tire changes during a race. But that would be boring.
Any energy released comes from the chemical reactions which are the bonds between electrons being broken and created.
The reaction products have a mass that is ever so slightly lower than the mass was before the reaction.
A lot of online explanations get this wrong. Like this one: from the BBC, explaining conservation of mass in chemical reactions. It would probably unnecessarily confuse the students who focus on all the mass that a fire "loses" as CO2 and water vapour and such, which is not lost at all.
The mass loss is extremely small of course. For an energy release of 1J, you lose 11 femtogram (1J/c^2). Good luck measuring that on your high school scales, or indeed any scales at all.
That would not work though. Deuterium fusion reactors work by turning mass into energy; they are just not very effective at it. Most of the mass is still there after the fuel has been burned. Using energy from them to produce deuterium would be rathercounter-productive.
(Coal fired power plants turn mass into energy as well, but they are even worse at it).
No it is not. The acceleration is constant, hence the energy gain is constant.
No. That is not how energy works. If you accelerate 1kg from 0 to 1 m/s, you have gained 1/2 * 1kg * (1m/s)^2, or half a Joule. If you accelerate from 1m/s to 2m/s, you go from half a joule to 1/2 * 1kg * (2m/s)^2, or 2 Joule. You have gained 1.5 Joule. From there it only gets worse.
The balance is that Tesla will learn from this accident. They will change the software on the existing vehicles to try to detect this situation better, and they will undoubtedly outfit the next generation of cars with improved sensors to avoid this specific accident.
In contrast, in a human-driven car, the only one who learned anything is dead, so the next person who gets in the same situation will likely react the same way and end up just as dead. At best, there might be a slight change to driver education because of it, but it isn't worth adding e.g. an extra lesson to the curriculum to avoid one specific accident.
A Danish driver was convicted forDUI after sharing a smoking area with marijuana smokers. In Denmark, the acceptable level is the detection limit, and blood tests are really really effective for marijuana. He was sentenced to lose his license for 3 years and 6 months.
However, it is worth noting that the police had stopped him for suspected drunk driving, and then decided to do a drug test since the alcohol level was below the legal limit and he seemed to be impaired.
I do not think you are aware how Netflix actually distributes content.
Every reasonably-large ISP is offered a Netflix-cache which is a physical box they provide. The ISP then installs the box in their network, and the Netflix customers in that ISP now get their content from the box. Unless the content is too rare to be in the cache, in which case it flows over the regular network, like before. Now, for many smaller ISP's this is not worth it, since the box itself eats quite a large amount of bandwidth just to keep its cache updated. But for the medium-sized ISPs it is a great way to save on transit bandwidth, and Netflix loves it because they get the bandwidth for free as well.
The neat thing is that for participating ISPs, Netflix has no extra expenses when a customer picks a high bandwidth stream, and for the ISP it is great as well because they only have to transport the stream in their own network, which in many cases is close to free. As an extra bonus for the ISP, the customer might have a data quota or even pay per gigabyte.
There has been research showing that people previously thought to be brain dead could actually be communicated with using fMRI's combined with very specific setups (basically telling the person to think of something specific for yes and of something completely different for no, then analyzing the scans to determine the answer).
No. No there has not. Brain dead people really are brain dead, their brains are not showing activity on scans. Otherwise they wouldn't be brain dead.
There has been studies showing that locked-in people can actually communicate using fMRI scans. But they're locked-in, not brain dead.
LTE-U would have allowed yourphone to do 4G on unlicensed bands. That means you could legally make your own cell phone provider at home, and make your phone roam there for cheap calls.
LAA is a way for carriers to steal bandwidth from the public, without having to give anything back. They just squat on the public bandwidth for the actual data, but all control traffic is on licensed bands. This means you cannot set up a carrier without licensing.
On the upside, traditional USB is so simple that it can be made reasonably secure, if anyone cares to do so. Devices can't really initiate anything, they can just wait for the host computer to get around to listening to them or assert a flag that they need servicing, hoping that the host computer cares. It is also slow enough that you can play microkernel and sandbox the USB device drivers, preventing them from messing up too badly. Once that is done, you "just" have to audit your USB host controller driver and make sure that you do not use native file systems on USB devices (instead going through FUSE or similar, with sandboxing).
This is a great situation compared to e.g. FireWire where you are owned by anything, even if you don't have a device driver for it.
Alas, with USB 3 comes DMA, and that means you need the same defences as FireWire -- IOMMU and such. Good luck getting that right.
Slashdot Mirror
The parliament can enact a law and say "this law comes into effect on January 1st 2017, provided the public votes yes to referendum foo before that date".
That way the referendum is binding, sort of.
Nothing stops parliament from repealing that law on January 2nd, of course. (Or even on December 31st).
You can break out of emulators too. I present you with: the Java sandbox.
How extreme energies? Supernovas are pretty mainstream, and still much more powerful than anything achievable with current technology and a few billions.
Exactly. And the code for high energies can't the that buggy, orthe whole Big Bang thing would have fizzled.
And VM guests can't break out of the hypervisor... Oh wait, they can, if the hypervisor is buggy.
If the universe is a simulation, it is a pretty complex one. Bugs would be expected.
However, humanity has access to such a infinitesimal fraction of the universe, it would be unexpected to find bugs in simple parts like ours. The bugs would seem more likely in less tested parts of the code, like at extreme energies or very small distances.
Yes, you didn't read the thread. The argument was that the last mile providers who don't implement BCP38 should be blocked from the Internet. Last mile providers can only be blocked by the large backhaul providers, and they are never going to do that.
You don't implement BCP38 and any new DDoS prevention and mitigation standards, you become the first to be blocked upstream
The only ones who can do that are the large backhaul providers. Why would they annoy their customers by enforcing a policy that means they have to move less data? That would be a daft business move.
The source IP of the traffic is spoofed. This would not be possible if all ISP's implemented BCP38, but some don't, so it is.
Even if they document the tests, if they can be gamed in a test representative of "normal usage", then the same gaming will kick in on actual "normal usage", and so the test will not have been gamed.
Normal usage will be viewing a different movie than the one they test with. If you can get viewers to only watch the test signal, over and over, then sure there is no variance between expected use and actual use. However, I did not buy my TV to watch a specific set of video clips in a specific sequence, repeatedly.
Your sound bar would be only using max 20 to 30 Watts, Peak is a useless measure because it is a measure the power the sound bar can pump out for a moment, if you try to drive it hard continuously it will just crap it self and you will very soon find yourself pushing the volume down to a level it can actually handle.
The AC has it right. 180W is marketing. It will never take that from the socket.
My supposedly "smart" Samsung TV detects when power saving activates on the attached device and puts up a bright white logo to inform me. The logo does not go away. At least it moves around, so the wear on the screen is somewhat even.
The only way to do power saving with modern TV's is to use ARC, and ARC support is just not very widespread yet.
But Power Companies, who rely on Energy Usage Tests to forecast demand and allow for it, do care.
You imply that power companies try to guess which items people buy, and how much they use them, and then use the Energy Usage Tests to figure out aggregate demand. This sounds highly improbable.
English politics are strange.
Conservatives and Lib Dems set up a coalition, Conservatives do a lot of bad things and Lib Dems only prevent some of them: Lib Dems collapse.
Conservatives and Labour jointly try to run a campaign to stay in the EU, to deal with the mess that the Conservatives created: Labour collapse.
Absolute thrust does not matter all that much, as long as the thrust can actually lift the rocket + payload off the ground. Lower thrust means gentler acceleration which is nicer for cargo but especially for crew, if you want to man-rate one day.
Higher thrust also means you go faster before you escape the atmosphere. This increases maximum aerodynamic load.
F1 is a funny example. F1 tires are deliberately crap; it's part of the contract that the manufacturer isn't allowed to deliver good tires.
If Formula 1 teams could buy any tires they want, the tires would have better grip, work over a wider range of temperatures, and there would be no tire changes during a race. But that would be boring.
For quality tires, look at endurance racing.
Any energy released comes from the chemical reactions which are the bonds between electrons being broken and created.
The reaction products have a mass that is ever so slightly lower than the mass was before the reaction.
A lot of online explanations get this wrong. Like this one: from the BBC, explaining conservation of mass in chemical reactions. It would probably unnecessarily confuse the students who focus on all the mass that a fire "loses" as CO2 and water vapour and such, which is not lost at all.
The mass loss is extremely small of course. For an energy release of 1J, you lose 11 femtogram (1J/c^2). Good luck measuring that on your high school scales, or indeed any scales at all.
That would not work though. Deuterium fusion reactors work by turning mass into energy; they are just not very effective at it. Most of the mass is still there after the fuel has been burned. Using energy from them to produce deuterium would be rathercounter-productive.
(Coal fired power plants turn mass into energy as well, but they are even worse at it).
No it is not. The acceleration is constant, hence the energy gain is constant.
No. That is not how energy works. If you accelerate 1kg from 0 to 1 m/s, you have gained 1/2 * 1kg * (1m/s)^2, or half a Joule. If you accelerate from 1m/s to 2m/s, you go from half a joule to 1/2 * 1kg * (2m/s)^2, or 2 Joule. You have gained 1.5 Joule. From there it only gets worse.
Acceleration is not relative.
The balance is that Tesla will learn from this accident. They will change the software on the existing vehicles to try to detect this situation better, and they will undoubtedly outfit the next generation of cars with improved sensors to avoid this specific accident.
In contrast, in a human-driven car, the only one who learned anything is dead, so the next person who gets in the same situation will likely react the same way and end up just as dead. At best, there might be a slight change to driver education because of it, but it isn't worth adding e.g. an extra lesson to the curriculum to avoid one specific accident.
It is even so convenient that said coal is already stored safely in the ground, so the only thing humanity has to do is, tada, not dig it up.
Alas, something so sensible seems to be entirely beyond us.
A Danish driver was convicted forDUI after sharing a smoking area with marijuana smokers. In Denmark, the acceptable level is the detection limit, and blood tests are really really effective for marijuana. He was sentenced to lose his license for 3 years and 6 months.
However, it is worth noting that the police had stopped him for suspected drunk driving, and then decided to do a drug test since the alcohol level was below the legal limit and he seemed to be impaired.
I do not think you are aware how Netflix actually distributes content.
Every reasonably-large ISP is offered a Netflix-cache which is a physical box they provide. The ISP then installs the box in their network, and the Netflix customers in that ISP now get their content from the box. Unless the content is too rare to be in the cache, in which case it flows over the regular network, like before. Now, for many smaller ISP's this is not worth it, since the box itself eats quite a large amount of bandwidth just to keep its cache updated. But for the medium-sized ISPs it is a great way to save on transit bandwidth, and Netflix loves it because they get the bandwidth for free as well.
The neat thing is that for participating ISPs, Netflix has no extra expenses when a customer picks a high bandwidth stream, and for the ISP it is great as well because they only have to transport the stream in their own network, which in many cases is close to free. As an extra bonus for the ISP, the customer might have a data quota or even pay per gigabyte.
There has been research showing that people previously thought to be brain dead could actually be communicated with using fMRI's combined with very specific setups (basically telling the person to think of something specific for yes and of something completely different for no, then analyzing the scans to determine the answer).
No. No there has not. Brain dead people really are brain dead, their brains are not showing activity on scans. Otherwise they wouldn't be brain dead.
There has been studies showing that locked-in people can actually communicate using fMRI scans. But they're locked-in, not brain dead.
You are right and I am wrong. Sorry.
LAA is terrible, but LTE-U is even worse.
LTE-U would have allowed yourphone to do 4G on unlicensed bands. That means you could legally make your own cell phone provider at home, and make your phone roam there for cheap calls.
LAA is a way for carriers to steal bandwidth from the public, without having to give anything back. They just squat on the public bandwidth for the actual data, but all control traffic is on licensed bands. This means you cannot set up a carrier without licensing.
The demise of LTE-U is very sad.
On the upside, traditional USB is so simple that it can be made reasonably secure, if anyone cares to do so. Devices can't really initiate anything, they can just wait for the host computer to get around to listening to them or assert a flag that they need servicing, hoping that the host computer cares. It is also slow enough that you can play microkernel and sandbox the USB device drivers, preventing them from messing up too badly. Once that is done, you "just" have to audit your USB host controller driver and make sure that you do not use native file systems on USB devices (instead going through FUSE or similar, with sandboxing).
This is a great situation compared to e.g. FireWire where you are owned by anything, even if you don't have a device driver for it.
Alas, with USB 3 comes DMA, and that means you need the same defences as FireWire -- IOMMU and such. Good luck getting that right.