MHD pumps work via the Lorentz Force and therefore need electrode contact with the fluid at right angles to the magnetic field.
Keep in mind, that most MHD pumps are at best 30% efficent, so you'll need a little more juice to move something like Galinstan. The only problem with using traditional pumping with something like that is that it wets every surface except things coated with Gallium Oxide and it alloys with most all metals to some small or large extent (You flatly do not want to expose Aluminum or Magnesium to this stuff, it'll rot it like Mercury does...). The only decent pump is going to be a MHD pump or an inductively driven Tesla style pump to begin with. Anything else will get contaminated with the pumped liquid or expose it to eventual oxidization...
It will pretty much tin the surface and that's it... If you leak the metal, then YES, it's a real problem. The resultant amalgamation of Aluminum or Magnesium when exposed to water will produce a lot of heat and Aluminum or Magnesium Hydroxide.
I didn't say it wasn't whack (But then, isn't water, oil, alcohol, Liquid Nitrogen or Fluorinert cooling whack too?) it was just that it was feasible and usable for some applications.
Those were what was pulled up from a Google query of "galinstan cooling". Had you used the suggested search topics that I gave, you'd have found the same things I did. It solidifies at -4 deg F. Don't you think that it would work rather well in place of mercury in a cooling capacity?
The metals themselves are non-toxic, liquid at room temperature when alloyed the way they are. You collect the damn stuff and re-use it. It's that simple.
Sodium's not liquid at room temps or anywhere near water's boiling point. However, having said this, there's alloys to be used that ARE liquid at room temp- and that they're non-toxic, and have little in the way of obnoxious behaviors (though they DO have some obnoxious characteristics...). About all I'll say about the subject for now...
It's most likely Galinstan, a metal alloy developed by Geratherm to replace mercury in medical thermometers.
In the case of a cooling system, the heat flux will be higher than with water or alcohol (heatpipe...). The specific heat's waaay lower, but the thermal conductivity (as in the rate the heat's absorbed or dissipated...) is much, much higher. So, if you have a decent convective flow via thermosiphon or by way of pumping, it becomes this very extended air-cooled heatsink.
You won't be overclocking with this stuff unless you couple it with something like Peltiers or Vapor-phase, but you CAN make a decent quiet PC with it.
Even if you're considering that you're talking about the crap feed, that's 48 times 1.5Mbps or an aggregate of 72Mbps. Pretty damn impressive considering the floating point contortions you're having to go through to get there- a PC wouldn't be likely to handle that many 1.5Mbits streams let alone higher rates. And this is going to be at the heart of the PS3.
Just because it'll priortize, etc. doesn't mean that it's running the threads simultaneously which is what "at once" actually means. The only way is to have Hyperthreading or SMP for that. In the case of the SMP machine, it'll priortize the threads and divvy them up across the CPUs/Cores on the machine, to be executed as in-parallel as is possible.
On a non-Hyperthreading, non-SMP machine, it's going to execute only as fast as the one-legged man is able to get to kicking asses...
I'd say that they are. In fact, several SCM tools are looking at what Linus has been doing with git and are giving the stuff due consideration (ARCH is going to pull all the "good" ideas coming from this- I think several other SCM projects are going to do the same...).
Yeah, I think Larry just stepped in a hornet's nest here- my only complaint about the whole thing is Linus' going on and on about bad ideas, etc. The only bad idea that was going on was his use of BitKeeper in the first place.
Considering that the two things you list are things that just simply won't get fixed with one throwing money at the problem (In the case of Health Care, we happen to have some of the best in the world in this country- however, because of the ways Health Insurance runs things and the needs of the medical community to have things like Malpractice Insurance, it's not possible for everyone to have it, even if you threw money at it... In the case of Domestic Violence, it's a different story but the results are the same...)- it's putting money into a black hole.
Putting the money to it wouldn't do any good (this is not to say that we shouldn't work on the problems, but the root causes are something that need working on as the problems are merely symptoms of a deeper problem that you're not going to fix with money. Time and education, possibly- but money won't fix it ever...). Putting the money to entertainment, well, that's easier- it produces some results and you end up with something in the end (a TV show, movie, etc. that you can get a copy of at some point...).
I was deeply concerned from the beginning with the whole affair. Yes, BitKeeper was the best tool for the job- as far as workflow, etc. was concerned. It wasn't, however, the best tool because of whom it was associated with (Um, anyone else remember lmbench?) and the fact that the entire repository was hosted on a machine that was controlled by a company with proprietary attitudes and software- software that could have the plug pulled on it at any moment. I knew this was going to happen. So did Linus, according to what he said- he just didn't think it was going to happen as soon as it did.
I'm also very deeply disappointed in Linus. "Practicality" and "expediency" aside, this was a bad idea from the get-go; and to express bitterness over Tridge's insistence on ensuring a way out of all this mess that Linus made for himself, is disturbing to say the least. Yes, he's human, but I thought he had his head screwed on better than that. Tridge did nothing wrong. Not even "unwise" as it's been described by him and others. The unwise thing was to choose BitKeeper in the first place.
Not sure what to make of that one. It would depend on the circle. If any member thereof is outside of the supplier of the software, then that would constitute distribution and thereby activate the clauses in the GPL- the employer's obligated to provide source to the members of the circle they provided the binaries to. Now, having said this, there is absolutely NOTHING keeping those players from distributing it far and wide (anything, whether it be by a contract/agreement or licensing, activates the clauses in the GPL...).
If they sign into this sort of thing, even the big players, they lose their common carrier status and leave themselves open for all kinds of litigation that they really, really don't want to face.
Common carrier status allows them to afford being in business in the first place.
RIAA is so flippin' stupid... I doubt anyone will sign into this "conduct code" because of this.
...most of them aren't touch-typing with the keyboards in the first place. They're logging patient monitoring data (like Blood Pressure, Temp, etc...) and when they're administering meds... These keyboards would probably work just fine for that purpose- and they can be chemically sterilized, etc. They're largely perfect for the application in question.
In fact, I've been wondering why they haven't used them in this sort of thing before. They're not all that expensive and I'd have been speccing the things if I were the IT staffer planning the buildout of the system. Probably some damn bean counter saying that the machines already have a keyboard and why would they need this extra $20-40 purchase per machine....
Excuse me, but it depends on whom contacted the site... While I don't agree with the premise of the filetrading of bootlegs, unless it was one of the lawyers for the rights holders, they don't get to demand anything.
Re:live performances vs. commercial product
on
EZTree Shuts Down
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· Score: 5, Informative
Yes, it does make a difference whether or not the materials are Copyrighted- and a live performance carries a Performance Copyright (i.e. The performer largely owns the rights to that if not all the way...). RIAA's involvement typically involves the recording company's interests, which is to say a Recording Copyright.
It's contorted, but simply put, because of contracts, the artists typically can't record without the permission of the label they're signed with, and the label owns the rights to that version/instance. Now, unless the label's done a recording of the live performance, you're only in violation of the Performance Rights- at which point, it'd be up to the artist(s) to defend their rights.
I'd love to know who actually sent the notice- if it was RIAA, they'd better have standing for dealing with that sort of infringement (i.e. They and their legal counsel can't be threating lawsuits unless they own an agreed upon recording of the concert.). I would dearly love to have someone hand them their kiesters over their overzealous "protection" of the labels' rights.
Okay... Now, you've done it... Now I've got to do some "obligatory" Spaceballs quotes.
"Sandurz, Sandurz! You got to help me! I don't know what to do! I can't make decisions! I'm a President!" - President Skroob
Sandurz : Prepare for light speed. Helmet : No, no, light speed is too slow. Sandurz : Light speed too slow? Helmet : Yes, we'll have to go right to...Ludicrous Speed! Sandurz : Ludicrous Speed! Sir, we've never gone that fast before... I don't think the ship can take it. Helmet : What's the matter, Colonel Sandurz...CHICKEN?! Sandurz : [In a squeaky, terrified voice...] Prepare Ship... Sandurz : [In a much more composed voice...] Prepare Ship for Ludicrous Speed...
[Sandurz rattles on for a couple of minutes about closing the three ring circus, canceling things, etc...]
Helmet : [To Sandurz as he snatches the PA mic from him...] Give me that, you pathetic excuse for a commander! Helmet : [Into PA system...] Ludicrous Speed! Go!
[The ship takes off. The display lights up: Light Speed, Ridiculous Speed, and then Ludicrous Speed. Helmet is being pulled back horizontally, barely holding on for dear life on the control console.]
Helmet : Whoooaaa! What have I done? My brains are going into my feet.
[Spaceball One blasts past the Winnebago with a full head of steam...]
Helmet : [In a strained voice...] We passed them! Stop this thing! Sandurz : [In a strained voice...] We can't stop! It's too dangerous! We have to slow down first. Helmet : [In a strained voice...] Bullshit! Just stop this thing! I order you- Stooooop!
[Sandurz pulls on a lever with indicator lights which reads, "Emergency Stop, Never Use." The ship stops and Dark Helmet goes flying into a panel. Sandurz has a horrified look on his face as he frantically unbuckles himself from his seat]
Sandurz : [picks Helmet up] Are you all right, Sir?
[Helmet looks stoned/punch-drunk with smashed up glasses...]
Helmet : Fine... How've you been? Sandurz : Fine, Sir. Helmet : Good... Sandurz : It's a good thing you were wearing that helmet. Helmet : Yeah... Sandurz : What should we do now, sir? Helmet : Well... Are we stopped? Sandurz : We're stopped, sir. Helmet : Good... Well, why don't we take a five minute break? Sandurz : Very good, Sir. Helmet :...Smoke if you got 'em. [Falls forward on his face with a loud thud...]
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MHD pumps work via the Lorentz Force and therefore need electrode contact with the fluid at right angles to the magnetic field.
Keep in mind, that most MHD pumps are at best 30% efficent, so you'll need a little more juice to move something like Galinstan. The only problem with using traditional pumping with something like that is that it wets every surface except things coated with Gallium Oxide and it alloys with most all metals to some small or large extent (You flatly do not want to expose Aluminum or Magnesium to this stuff, it'll rot it like Mercury does...). The only decent pump is going to be a MHD pump or an inductively driven Tesla style pump to begin with. Anything else will get contaminated with the pumped liquid or expose it to eventual oxidization...
It will pretty much tin the surface and that's it... If you leak the metal, then YES, it's a real problem. The resultant amalgamation of Aluminum or Magnesium when exposed to water will produce a lot of heat and Aluminum or Magnesium Hydroxide.
I didn't say it wasn't whack (But then, isn't water, oil, alcohol, Liquid Nitrogen or Fluorinert cooling whack too?) it was just that it was feasible and usable for some applications.
And it's violently reactive with pretty much everything in existence. Not useful, and not what they're using. I know for a fact that it's not.
And the answer to your question would be: Yes, I know something more; and apparently you didn't take my advice to google for Geratherm or Galinstan...
: imartinez.etsin.upm.es/lab1/Thermometry/Mercury%25 20problems%2520and%2520alternatives.doc+eutectic+g alinstan+geratherm&hl=en&client=firefox-a : hydrogen.physik.uni-wuppertal.de/publications/rsi7 3031564.pdf+eutectic+galinstan+cooling&hl=en&clien t=firefox-a
http://64.233.187.104/search?q=cache:YP4EjsayVjQJ
http://64.233.187.104/search?q=cache:llknBUqBdLgJ
http://www.geratherm.com/en/technologie_galinstan
Those were what was pulled up from a Google query of "galinstan cooling". Had you used the suggested search topics that I gave, you'd have found the same things I did. It solidifies at -4 deg F. Don't you think that it would work rather well in place of mercury in a cooling capacity?
The metals themselves are non-toxic, liquid at room temperature when alloyed the way they are. You collect the damn stuff and re-use it. It's that simple.
Nobody ever gives consideration to Eutetic alloys of Gallium...
Do a google search on Galinstan or Geratherm.
You'll find you were wrong about the mercury.
Sodium's not liquid at room temps or anywhere near water's boiling point. However, having said this, there's alloys to be used that ARE liquid at room temp- and that they're non-toxic, and have little in the way of obnoxious behaviors (though they DO have some obnoxious characteristics...). About all I'll say about the subject for now...
It's most likely Galinstan, a metal alloy developed by Geratherm to replace mercury in medical thermometers.
In the case of a cooling system, the heat flux will be higher than with water or alcohol (heatpipe...). The specific heat's waaay lower, but the thermal conductivity (as in the rate the heat's absorbed or dissipated...) is much, much higher. So, if you have a decent convective flow via thermosiphon or by way of pumping, it becomes this very extended air-cooled heatsink.
You won't be overclocking with this stuff unless you couple it with something like Peltiers or Vapor-phase, but you CAN make a decent quiet PC with it.
Even if you're considering that you're talking about the crap feed, that's 48 times 1.5Mbps or an aggregate of 72Mbps. Pretty damn impressive considering the floating point contortions you're having to go through to get there- a PC wouldn't be likely to handle that many 1.5Mbits streams let alone higher rates. And this is going to be at the heart of the PS3.
They mis-spelled S-U-C-K-S... I'll admit, they both end in "ks", but the reality is completely different than what they're spinning here...
Just because it'll priortize, etc. doesn't mean that it's running the threads simultaneously which is what "at once" actually means. The only way is to have Hyperthreading or SMP for that. In the case of the SMP machine, it'll priortize the threads and divvy them up across the CPUs/Cores on the machine, to be executed as in-parallel as is possible.
On a non-Hyperthreading, non-SMP machine, it's going to execute only as fast as the one-legged man is able to get to kicking asses...
I'd say that they are. In fact, several SCM tools are looking at what Linus has been doing with git and are giving the stuff due consideration (ARCH is going to pull all the "good" ideas coming from this- I think several other SCM projects are going to do the same...).
Yeah, I think Larry just stepped in a hornet's nest here- my only complaint about the whole thing is Linus' going on and on about bad ideas, etc. The only bad idea that was going on was his use of BitKeeper in the first place.
Considering that the two things you list are things that just simply won't get fixed with one throwing money at the problem (In the case of Health Care, we happen to have some of the best in the world in this country- however, because of the ways Health Insurance runs things and the needs of the medical community to have things like Malpractice Insurance, it's not possible for everyone to have it, even if you threw money at it... In the case of Domestic Violence, it's a different story but the results are the same...)- it's putting money into a black hole.
Putting the money to it wouldn't do any good (this is not to say that we shouldn't work on the problems, but the root causes are something that need working on as the problems are merely symptoms of a deeper problem that you're not going to fix with money. Time and education, possibly- but money won't fix it ever...). Putting the money to entertainment, well, that's easier- it produces some results and you end up with something in the end (a TV show, movie, etc. that you can get a copy of at some point...).
It's only "good" when they clandestinely apply it to competiors products. It's "bad" when it's applied to their stuff.
Hypocrisy always rubs me the wrong way. Even in the case of Open Source people...
I was deeply concerned from the beginning with the whole affair. Yes, BitKeeper was the best tool for the job- as far as workflow, etc. was concerned. It wasn't, however, the best tool because of whom it was associated with (Um, anyone else remember lmbench?) and the fact that the entire repository was hosted on a machine that was controlled by a company with proprietary attitudes and software- software that could have the plug pulled on it at any moment. I knew this was going to happen. So did Linus, according to what he said- he just didn't think it was going to happen as soon as it did.
I'm also very deeply disappointed in Linus. "Practicality" and "expediency" aside, this was a bad idea from the get-go; and to express bitterness over Tridge's insistence on ensuring a way out of all this mess that Linus made for himself , is disturbing to say the least. Yes, he's human, but I thought he had his head screwed on better than that. Tridge did nothing wrong. Not even "unwise" as it's been described by him and others. The unwise thing was to choose BitKeeper in the first place.
But then, NASCAR's been uninteresting for some time. I'm more interested in Gran Prix style and Formula One racing than NASCAR.
Not sure what to make of that one. It would depend on the circle. If any member thereof is outside of the supplier of the software, then that would constitute distribution and thereby activate the clauses in the GPL- the employer's obligated to provide source to the members of the circle they provided the binaries to. Now, having said this, there is absolutely NOTHING keeping those players from distributing it far and wide (anything, whether it be by a contract/agreement or licensing, activates the clauses in the GPL...).
If they sign into this sort of thing, even the big players, they lose their common carrier status and leave themselves open for all kinds of litigation that they really, really don't want to face.
Common carrier status allows them to afford being in business in the first place.
RIAA is so flippin' stupid... I doubt anyone will sign into this "conduct code" because of this.
Typical... Just friggin' typical...
What part of bandwidth consumption automagically translates into illegal filesharing?
Aaaaggh! Will someone go and clue-by-four the people over there at the RIAA/MPAA offices- PLEASE?!
...most of them aren't touch-typing with the keyboards in the first place. They're logging patient monitoring data (like Blood Pressure, Temp, etc...) and when they're administering meds... These keyboards would probably work just fine for that purpose- and they can be chemically sterilized, etc. They're largely perfect for the application in question.
In fact, I've been wondering why they haven't used them in this sort of thing before. They're not all that expensive and I'd have been speccing the things if I were the IT staffer planning the buildout of the system. Probably some damn bean counter saying that the machines already have a keyboard and why would they need this extra $20-40 purchase per machine....
Actually, I was thinking more of YOUR parents when I originally posted.
If your family tree doesn't branch...
Excuse me, but it depends on whom contacted the site... While I don't agree with the premise of the filetrading of bootlegs, unless it was one of the lawyers for the rights holders, they don't get to demand anything.
Yes, it does make a difference whether or not the materials are Copyrighted- and a live performance carries a Performance Copyright (i.e. The performer largely owns the rights to that if not all the way...). RIAA's involvement typically involves the recording company's interests, which is to say a Recording Copyright.
It's contorted, but simply put, because of contracts, the artists typically can't record without the permission of the label they're signed with, and the label owns the rights to that version/instance. Now, unless the label's done a recording of the live performance, you're only in violation of the Performance Rights- at which point, it'd be up to the artist(s) to defend their rights.
I'd love to know who actually sent the notice- if it was RIAA, they'd better have standing for dealing with that sort of infringement (i.e. They and their legal counsel can't be threating lawsuits unless they own an agreed upon recording of the concert.). I would dearly love to have someone hand them their kiesters over their overzealous "protection" of the labels' rights.
...that Luke and Leia are brother and sister, wouldn't playing Luke and Leia would be like...um...you know...