Banning sex with people who said something that could suggest they pretend to be a child or pretend their mate is a child, or think about something child-related during sex.
Perhaps, but, consider that you want heat and cool at different times. In the right place, during the day you would have spare heat (sunlight, environment) to heat the gas again, because during the day is when you want to use the gas to push your turbine.
And, during the evening, when it's not so hot out, you'll be compressing the air, and that's when you generate heat to do everything else.
Just like we timeshift the usage of cheap night time energy into storage for use in the daytime, we also timeshift the usage of heat.
Why indeed. I guess "critical thinking" isn't quite up your alley.
And I guess having a rational discussion without ad-homs is beyond you. So, allow me to stoop to your level.
Your proposal suggests either every vehicle has a camera and access to this database (huge risk) Or that every inch of every highway and road has camera coverage (huge cost, huge privacy concerns) and network access to this database (back to that darn hack risk thing again).
My proposal doesn't suggest squat, you're the fool who decided to start trying to implement the policy with a faulty mechanism. But, since we're about suggestions right now, how about this suggestion? Speed trap cameras already exist, and they're already attached to the network. Outfit them to detect these broadcasts, and take snapshots when these broadcasts occur.
They don't need to be everywhere. They just need a sufficient density to deter the typical honest person from considering this as a feasible option.
Huge cost? If the person is broadcasting like this frequently, they will get found, eventually, so you don't need cameras on every inch. Besides, cameras can see more than an inch, dumbass.
(Yes, I know you weren't being literal. As I mentioned before, though, I'm in ad-hom mode now because you're talking like a fuckwit)
Huge privacy concerns? That didn't stop the speed trap cameras from getting put up.
Network access? Gee, they have to get the info off the cameras somehow...
As to why unmarked cars might be forcing their way through traffic. Hm. Dunno about that one. Can't think of a reason. Oh, wait, maybe there is an emergency situation that they need to get to?
I think you missed the part about the "don't want to draw attention to themselves." After all, that is the implication of your original post, with the comment "Why yes, we do want criminals to use the database to identify law enforcement." - that the identity of unmarked law enforcement vehicles should remain a secret. If they're so worried about secrecy, they shouldn't force their way through traffic. If they do force their way through traffic, I guess they're not that concerned with secrecy.
Likewise they better not pull anyone over for some infraction or another, they might give themselves away! What an asanine comment.
Yes, your comment is asinine. (btw, learn2spell, it's a useful skill after you graduate high school) Again, you seem to be under the impression that these vehicles' identities should be hidden. But, then you openly admit that these vehicles cannot maintain a hidden identity. Talk about fucking dissonance, man.
And all anyone has to do to fool this brilliant system of yours is: Tape a printed copy of a known emergency vehicle license plate over their own.
And when the system says that suddenly vehicle AFH-4F2H is in downtown LA and then 2 seconds later in uptown SF, I imagine they're just going to send them a speeding ticket.
*shakes head* Fucking moron.
The system will tell everyone that you're a valid emergency vehicle and no one will be the wiser.
Yeah, til the po-po sees an obviously non-emergency vehicle running around like it's an emergency vehicle, and he pulls you over and then you get fucked BIG TIME because you've got false plates on.
I hope my system does come to pass, so you try to outsmart it like that, and you get caught and turned into Bubba's girlfriend down at the State Pen.
Because law enforcement never uses unmarked cars for anything at all ever.
But, the database will know what law enforcement cars are unmarked.
Besides, if they're unmarked and don't want to draw attention to themselves...forcing their way through traffic isn't very helpful, is it?
Why yes, we do want criminals to use the database to identify law enforcement.
I assumed such a database already exists. I also assume that it's not open to the public. I don't see how criminals could use it to identify law enforcement. If you're concerned about hacking, I wonder...why hasn't it been hacked already, if identifying law enforcement is so useful?
Now, we have to discuss how you do it. The idea proposed is based on incorrect understandings of thermodynamics and is, therefore, suspect.
But, didn't you originally state that the incorrect understanding was the >100% efficiency claim? So, which part of his idea disagrees with thermodynamics?
Keep in mind, I'm no M.E. and I only know a bit about the subjects at hand because of some college physics. I only chimed in on this discussion in the first place because I saw that OP was discussing efficiency relative to the dollar, and a lot of people started flipping out over his efficiency claim.
The only thing that seems shakey to me is decompressing the air to cool your house. Is it really possible to give the air enough energy to drive the turbine by letting it cool your house? I would assume it would be more beneficial to try to superheat the air to increase its pressure, assisting it in the process of driving the turbine.
If you broadcast that you're an emergency vehicle, the other vehicles probably need to know who in question is the emergency vehicle in order to give that vehicle passage. Therefore, you do need to broadcast some sort of identifying information.
Combine this broadcast with, say, a camera that can read license plates, and if you see some vehicle say it's an emergency vehicle, you can snap a shot of its license plate and cross-check it with a database. The vehicle should be easy to identify by eye, since it's being given a priority over other vehicles.
While you are correct to be concerned for potential abuses, you are assuming that there is no combination of surveillance techniques to monitor for these abuses.
Oh, and re: flashing firmware, I'm sure there's some combination of checksums and authentication and handshaking etc that could make this more difficult (keeping the honest man honest, and all that)
Whether you can realize enough savings on the differential cost between AM and PM power usage, is a different issue
And OP replied to one of your comments with sufficient numbers for you to crunch to determine this issue.
The OP also mentioned using the "waste" heat to heat water. OK, that's fine. But if that's what you're after, why not use a gas burner, or a (wait for it!) solar water heater?
Because cooling the gas is necessary to store more of it. The necessity means that the heat will be generated whether or not you need it. If you have a sufficient source of heat already, why would you (wait for it!) want ANOTHER source of heat?
However, there is NOT NOT NOT free energy produced. The claim was an over-unity efficiency, and that's my issue: That is not possible. Period.
I agree with you, no free energy is produced. However, I think you misinterpreted the OP.
For one, did you completely miss the point where the efficiency in question is relative to the fucking dollar? He didn't explicitly state it but that was the gist I got when I read his post. Though, I read it without the intent on attacking him, and perhaps that allowed me to interpret his words in a manner different than yours.
This is how I interpret what he said.
We store energy when it's cheap, and use it when it's not. Part of this storage process generates heat. If we use the excess heat from this storage process, that is LESS energy that we need to use to create heat. Part of the unstoring process also absorbs heat. If we use this heat absorbing bit of the process to cool our house, that is LESS energy that we need to use to cool the house.
So, the reason dollar efficiency is higher is three-fold. The electricity itself is rendered less expensive via the storage mechanism, and they use two of the byproducts of the storage process for effects that we would normally use electricity for.
But you're storing more gas, which is the goal. And, when you pull the cool gas out of the tank, you can heat it back up to normal temperature (by, say, using it to cool the air in your house). Cooling the air in the house gives the air the energy that you stole from it when you cooled it down. Since you now have plenty of excess gas (since lowering the pressure allows you to store more moles of gas), assuming that you have sufficient heat to bring the air back to normal temperature, you should be able to recover the energy.
By letting it cool down (T down), while holding the piston volume (V) and quantity of gas (n) fixed (you did claim no leakage as a stipulation), according to PV=nRT, the pressure (P) will indeed decrease.
Let's say the cooling caused the pressure to go from 6000 psi to 4000 psi. Now, you're well under the pressure spec for the cylinder, and you can now fit more gas (n goes up, P goes up) into it without violating the pressure limit.
When the tank has no pressure, there are x moles of gas in it. As you start adding more gas to the tank (you know, storing the compressed air) there's now y moles of gas in it, where y > x. In order to fit more moles of gas into the tank, the gas is cooled, which results in the gas exerting less pressure, and now you can fit more gas into the storage tank without violating the pressure spec on the tank.
Again, we are not pulling energy out of nowhere. There's a lot of translating energy, though. Taking cheap electrical energy to store energy and suck heat off in order to allow us to store more air, and use that excess heat where we want it. Take the stored energy and use it when electrical energy isn't so cheap, and it just so happens that the decompression sucks heat out of the house.
It's not about free energy! Yes, you expend more energy putting more gas into the tank, but you will recoup some/most of that energy when it comes time for it to be released.
Not 100% energy efficient, but more than 100% dollar efficient. If off-peak electricity is one-third of the cost of peak electricity, and your system is overall 50% efficient at converting off-peak electricity to peak electricity, you have more than 100% dollar efficiency.
If you cool the gas, the pressure goes down, and you can jam more gas into the same volume while still meeting the pressure spec of the tank. This effectively increases the storage capacity of the tank, allowing you to add more compressed gas (up to the pressure limit of your tank).
I think the trick is to compress the gas while holding volume and quantity fixed, resulting in an increase in temperature. Then, pull the heat from the gas, cooling it and causing the temperature to go down. Pressure goes down now, too, and this should make it easier to store the air in the tank.
I guess you missed the part where this isn't about 100% energy efficiency, but about taking advantage of the cheaper cost of electricity during off-peak hours to get better than 100% efficiency in terms of the dollar.
I said that in order to not violate it, you decrease temperature, T, you decrease pressure, P, because the ideal gas law states that pressure and temperature are directly proportional in a fixed volume for a fixed amount of gas.
There, fixed that for ya.
PV = nRT, yes, thank you. T goes down, n goes up, P stays the same.
Wow, you're not only ignorant, but you're a prick too!
You entered a discussion on solar energy, and then took a left turn into not-solar-energy without specifying such.
Uh...wrong? The beginning of the post stated "compressed air storage". The only mention of solar panels is at the very end, "add a few solar panels and you are laughing"
But, after you pressurize the tanks, you want to cool them with water. Ideal Gas Law says that if you decrease temperature, you decrease pressure.
The tank itself keeps the volume constant. The water cooling is meant to keep the temperature constant (pressure up, temperature up, right?). Add moles of gas, get an increase in pressure. I don't see what part of the Ideal Gas Law is being violated.
In the context of "encryption key", I do believe the number represents something. Also, I glanced at Wikipedia (yeahyeah, whatever) and it lists three criteria for a trade secret. I do believe it fits the bill...
a trade secret is some sort of information that:
* is not generally known to the relevant portion of the public;
* confers some sort of economic benefit on its holder (where this benefit must derive specifically from its not being generally known, not just from the value of the information itself);
* is the subject of reasonable efforts to maintain its secrecy.
If I remember right, the original guy who discovered the key didn't actually reverse-engineer anything, per se. No debuggers or anything. He just managed to take dumps of the contents of memory at the right time, and managed to find the spot in memory where the key was placed when it was there.
Now, it sounds kinda like reverse engineering, but I'm sure there's some grey area involved there.
I agree, though, the number is a trade secret. Only when combined with an implementation of AACS does it become a circumvention device.
Hi. You're going to stop issuing DMCA takedown notices. You're going to publicly announce that DRM will never work. Or, these guys here are going to plaster your AACS Processing Key all over the Internet, Digg-style.
Look, the people you are after are your customers. We watch your movies, we listen to your music, we buy your merchandise. We pay you while you sleep.
Yeah, but instead of writing one driver to support one chipset, he wrote one driver to support eight chipsets. Being able to get that right was probably annoying; consider how hard it is to get any driver right. Especially considering that these drivers were all reverse engineered.
Slashdot Mirror
Banning sex with people who said something that could suggest they pretend to be a child or pretend their mate is a child, or think about something child-related during sex.
Who's your daddy!
Perhaps, but, consider that you want heat and cool at different times. In the right place, during the day you would have spare heat (sunlight, environment) to heat the gas again, because during the day is when you want to use the gas to push your turbine.
And, during the evening, when it's not so hot out, you'll be compressing the air, and that's when you generate heat to do everything else.
Just like we timeshift the usage of cheap night time energy into storage for use in the daytime, we also timeshift the usage of heat.
Why indeed. I guess "critical thinking" isn't quite up your alley.
And I guess having a rational discussion without ad-homs is beyond you. So, allow me to stoop to your level.
Your proposal suggests either every vehicle has a camera and access to this database (huge risk)
Or that every inch of every highway and road has camera coverage (huge cost, huge privacy concerns) and network access to this database (back to that darn hack risk thing again).
My proposal doesn't suggest squat, you're the fool who decided to start trying to implement the policy with a faulty mechanism. But, since we're about suggestions right now, how about this suggestion? Speed trap cameras already exist, and they're already attached to the network. Outfit them to detect these broadcasts, and take snapshots when these broadcasts occur.
They don't need to be everywhere. They just need a sufficient density to deter the typical honest person from considering this as a feasible option.
Huge cost? If the person is broadcasting like this frequently, they will get found, eventually, so you don't need cameras on every inch. Besides, cameras can see more than an inch, dumbass.
(Yes, I know you weren't being literal. As I mentioned before, though, I'm in ad-hom mode now because you're talking like a fuckwit)
Huge privacy concerns? That didn't stop the speed trap cameras from getting put up.
Network access? Gee, they have to get the info off the cameras somehow...
As to why unmarked cars might be forcing their way through traffic. Hm. Dunno about that one. Can't think of a reason. Oh, wait, maybe there is an emergency situation that they need to get to?
I think you missed the part about the "don't want to draw attention to themselves." After all, that is the implication of your original post, with the comment "Why yes, we do want criminals to use the database to identify law enforcement." - that the identity of unmarked law enforcement vehicles should remain a secret. If they're so worried about secrecy, they shouldn't force their way through traffic. If they do force their way through traffic, I guess they're not that concerned with secrecy.
Likewise they better not pull anyone over for some infraction or another, they might give themselves away! What an asanine comment.
Yes, your comment is asinine. (btw, learn2spell, it's a useful skill after you graduate high school) Again, you seem to be under the impression that these vehicles' identities should be hidden. But, then you openly admit that these vehicles cannot maintain a hidden identity. Talk about fucking dissonance, man.
And all anyone has to do to fool this brilliant system of yours is: Tape a printed copy of a known emergency vehicle license plate over their own.
And when the system says that suddenly vehicle AFH-4F2H is in downtown LA and then 2 seconds later in uptown SF, I imagine they're just going to send them a speeding ticket.
*shakes head* Fucking moron.
The system will tell everyone that you're a valid emergency vehicle and no one will be the wiser.
Yeah, til the po-po sees an obviously non-emergency vehicle running around like it's an emergency vehicle, and he pulls you over and then you get fucked BIG TIME because you've got false plates on.
I hope my system does come to pass, so you try to outsmart it like that, and you get caught and turned into Bubba's girlfriend down at the State Pen.
Because law enforcement never uses unmarked cars for anything at all ever.
But, the database will know what law enforcement cars are unmarked.
Besides, if they're unmarked and don't want to draw attention to themselves...forcing their way through traffic isn't very helpful, is it?
Why yes, we do want criminals to use the database to identify law enforcement.
I assumed such a database already exists. I also assume that it's not open to the public. I don't see how criminals could use it to identify law enforcement. If you're concerned about hacking, I wonder...why hasn't it been hacked already, if identifying law enforcement is so useful?
Now, we have to discuss how you do it. The idea proposed is based on incorrect understandings of thermodynamics and is, therefore, suspect.
But, didn't you originally state that the incorrect understanding was the >100% efficiency claim? So, which part of his idea disagrees with thermodynamics?
Keep in mind, I'm no M.E. and I only know a bit about the subjects at hand because of some college physics. I only chimed in on this discussion in the first place because I saw that OP was discussing efficiency relative to the dollar, and a lot of people started flipping out over his efficiency claim.
The only thing that seems shakey to me is decompressing the air to cool your house. Is it really possible to give the air enough energy to drive the turbine by letting it cool your house? I would assume it would be more beneficial to try to superheat the air to increase its pressure, assisting it in the process of driving the turbine.
If you broadcast that you're an emergency vehicle, the other vehicles probably need to know who in question is the emergency vehicle in order to give that vehicle passage. Therefore, you do need to broadcast some sort of identifying information.
Combine this broadcast with, say, a camera that can read license plates, and if you see some vehicle say it's an emergency vehicle, you can snap a shot of its license plate and cross-check it with a database. The vehicle should be easy to identify by eye, since it's being given a priority over other vehicles.
While you are correct to be concerned for potential abuses, you are assuming that there is no combination of surveillance techniques to monitor for these abuses.
Oh, and re: flashing firmware, I'm sure there's some combination of checksums and authentication and handshaking etc that could make this more difficult (keeping the honest man honest, and all that)
Whether you can realize enough savings on the differential cost between AM and PM power usage, is a different issue
And OP replied to one of your comments with sufficient numbers for you to crunch to determine this issue.
The OP also mentioned using the "waste" heat to heat water. OK, that's fine. But if that's what you're after, why not use a gas burner, or a (wait for it!) solar water heater?
Because cooling the gas is necessary to store more of it. The necessity means that the heat will be generated whether or not you need it. If you have a sufficient source of heat already, why would you (wait for it!) want ANOTHER source of heat?
However, there is NOT NOT NOT free energy produced. The claim was an over-unity efficiency, and that's my issue: That is not possible. Period.
I agree with you, no free energy is produced. However, I think you misinterpreted the OP.
For one, did you completely miss the point where the efficiency in question is relative to the fucking dollar? He didn't explicitly state it but that was the gist I got when I read his post. Though, I read it without the intent on attacking him, and perhaps that allowed me to interpret his words in a manner different than yours.
This is how I interpret what he said.
We store energy when it's cheap, and use it when it's not. Part of this storage process generates heat. If we use the excess heat from this storage process, that is LESS energy that we need to use to create heat. Part of the unstoring process also absorbs heat. If we use this heat absorbing bit of the process to cool our house, that is LESS energy that we need to use to cool the house.
So, the reason dollar efficiency is higher is three-fold. The electricity itself is rendered less expensive via the storage mechanism, and they use two of the byproducts of the storage process for effects that we would normally use electricity for.
But you're storing more gas, which is the goal. And, when you pull the cool gas out of the tank, you can heat it back up to normal temperature (by, say, using it to cool the air in your house). Cooling the air in the house gives the air the energy that you stole from it when you cooled it down. Since you now have plenty of excess gas (since lowering the pressure allows you to store more moles of gas), assuming that you have sufficient heat to bring the air back to normal temperature, you should be able to recover the energy.
By letting it cool down (T down), while holding the piston volume (V) and quantity of gas (n) fixed (you did claim no leakage as a stipulation), according to PV=nRT, the pressure (P) will indeed decrease.
Let's say the cooling caused the pressure to go from 6000 psi to 4000 psi. Now, you're well under the pressure spec for the cylinder, and you can now fit more gas (n goes up, P goes up) into it without violating the pressure limit.
When the tank has no pressure, there are x moles of gas in it. As you start adding more gas to the tank (you know, storing the compressed air) there's now y moles of gas in it, where y > x. In order to fit more moles of gas into the tank, the gas is cooled, which results in the gas exerting less pressure, and now you can fit more gas into the storage tank without violating the pressure spec on the tank.
Again, we are not pulling energy out of nowhere. There's a lot of translating energy, though. Taking cheap electrical energy to store energy and suck heat off in order to allow us to store more air, and use that excess heat where we want it. Take the stored energy and use it when electrical energy isn't so cheap, and it just so happens that the decompression sucks heat out of the house.
It's not about free energy! Yes, you expend more energy putting more gas into the tank, but you will recoup some/most of that energy when it comes time for it to be released.
Not 100% energy efficient, but more than 100% dollar efficient. If off-peak electricity is one-third of the cost of peak electricity, and your system is overall 50% efficient at converting off-peak electricity to peak electricity, you have more than 100% dollar efficiency.
If you cool the gas, the pressure goes down, and you can jam more gas into the same volume while still meeting the pressure spec of the tank. This effectively increases the storage capacity of the tank, allowing you to add more compressed gas (up to the pressure limit of your tank).
I think the trick is to compress the gas while holding volume and quantity fixed, resulting in an increase in temperature. Then, pull the heat from the gas, cooling it and causing the temperature to go down. Pressure goes down now, too, and this should make it easier to store the air in the tank.
IANARS but more than 100% is automatic wacko.
I guess you missed the part where this isn't about 100% energy efficiency, but about taking advantage of the cheaper cost of electricity during off-peak hours to get better than 100% efficiency in terms of the dollar.
I said that in order to not violate it, you decrease temperature, T, you decrease pressure, P, because the ideal gas law states that pressure and temperature are directly proportional in a fixed volume for a fixed amount of gas.
There, fixed that for ya.
PV = nRT, yes, thank you. T goes down, n goes up, P stays the same.
Wow, you're not only ignorant, but you're a prick too!
You entered a discussion on solar energy, and then took a left turn into not-solar-energy without specifying such.
Uh...wrong? The beginning of the post stated "compressed air storage". The only mention of solar panels is at the very end, "add a few solar panels and you are laughing"
But, after you pressurize the tanks, you want to cool them with water. Ideal Gas Law says that if you decrease temperature, you decrease pressure.
The tank itself keeps the volume constant. The water cooling is meant to keep the temperature constant (pressure up, temperature up, right?). Add moles of gas, get an increase in pressure. I don't see what part of the Ideal Gas Law is being violated.
This is about handing over call records to the government, not NSA wiretaps.
In the context of "encryption key", I do believe the number represents something. Also, I glanced at Wikipedia (yeahyeah, whatever) and it lists three criteria for a trade secret. I do believe it fits the bill...
a trade secret is some sort of information that:
* is not generally known to the relevant portion of the public;
* confers some sort of economic benefit on its holder (where this benefit must derive specifically from its not being generally known, not just from the value of the information itself);
* is the subject of reasonable efforts to maintain its secrecy.
If I remember right, the original guy who discovered the key didn't actually reverse-engineer anything, per se. No debuggers or anything. He just managed to take dumps of the contents of memory at the right time, and managed to find the spot in memory where the key was placed when it was there.
Now, it sounds kinda like reverse engineering, but I'm sure there's some grey area involved there.
I agree, though, the number is a trade secret. Only when combined with an implementation of AACS does it become a circumvention device.
V's extended alliteration, with each V word hyperlinked to Dictionary.com, along with a YouTube clip of the scene.
V's Annotated Extended Alliteration
..and that's good enough for me
You have got to be kidding me...are you that xenophobic?
UN Report says over 34,000 Iraqis killed in 2006
34,000 people per year / 12 months per year = 2834 1/3 people per month
As of October '03, the calculated death toll for 9/11 was 2,752
For the record, the average loss of Iraqi life per month in 2006 exceeds how many people died during 9/11. And that's just 2006.
Makes you wonder who really has the right to worry about terrorism...
Hi. You're going to stop issuing DMCA takedown notices. You're going to publicly announce that DRM will never work. Or, these guys here are going to plaster your AACS Processing Key all over the Internet, Digg-style.
Look, the people you are after are your customers. We watch your movies, we listen to your music, we buy your merchandise. We pay you while you sleep.
Do not fuck with us.
Can it process the number 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0?
Yeah, but instead of writing one driver to support one chipset, he wrote one driver to support eight chipsets. Being able to get that right was probably annoying; consider how hard it is to get any driver right. Especially considering that these drivers were all reverse engineered.
HIV attacks immune system cells and kills them.
Once HIV has killed enough immune cells that the CD4+ T-cells that there are fewer than 200 per micro-liter of blood, the host officially has AIDS.