uhm, so what state of matter is more efficient than liquid cooling? Would you say, screw it.. let the cable become hot and therefore much less efficient?
Oh geesh. Come on you guys, this is supporse to be a tech site. All metal conductors have some ohmic resistance. This resistance goes up or down based on the thickness of the metal. Too thin a conductor, and you start generating undesireable heat as the resistance does it's job and dissipates some of the powerFor maximum efficiency, you want as little resistance as possible.
Therefore, you want a bigger diameter cable, or a different way to attach if you insist on running 350 kW though the charging circuit.
You can use a smaller diameter cable, and cooling if you want that smaller cable to survive by not allowing it to go into thermal runaway. But it is still making heat. It's resistance is unchanged.
You want the power going into tha battery, not heating the fluid. This company simply exchanged efficiency for a smaller cable. And I certainly wouldn't design a charger like that. Not because it won't work - because the price of failure is so high.
This. If the cable is getting hot, the conductor isn't big enough for the current its carrying.
This is a dumb comment.
Oh, AC. I love it when people call me out when they are 100 percent wrong.
Every cable heats up regardless of size if the current is non zero.
The issue is how much amperage you are trying to run through what sixe cable. The thinner the cable, the higher the resistance. The larger the current and the higher the resistance, the more heat will be generated .
There is a reason why we don't use 20 gauge wire in our car's starting circuit. Run a hundred amps through 5 feet of that and you have a fireworks show.
Cables can happily run hot enough to be glowing red and still happily pass current, the question is if that cable is safe to handle.
Telll me what happens when you get a positive feedback loop. As the temperature increases, the resistance increases. You reach a point where the temperature increases so much that it exceeds the melting point of the wire. And that is why this cable has a liquid cooling system on it.
Liquid cooling is just a way of increasing the current carrying capacity which is limited by the temperature rating of the non conductor components in a cable, specifically the insulation.
Oh lordy - this excess heat - Where is it coming from? The cable. Where is it going? Into the cooling medium. Where do we want it to go? Into the battery.
Pretty simple that. The amount of energy going into the battery, minus the energy going into the fluid, and you have an efficiency of the charging system.
And if that cooling system fails, we likely have a bad situation very quickly. I'm reading very roughly 1000 amperes, which is nothing to sneeze at. And looking at the cables on that recharge station, I'm guessing less than a second to shut it down.
Using the electricity to heat whatever liquid they are using isn't terribly efficient.
Using electricity to heat is 100% efficient. Heat transfer from the cable to the water jacket is a different question, but still incredibly efficient. I'm not sure you actually understand what it is that is being done here.
Reminds me of the Ham Radio operator who was bragging to me about how efficient his antenna was, because he put toroids on it and they got hot. This means energy wasted heating up toroids that would otherwise be readiated from the antenna. In his case, his setup had feedline radiation that he was choking off. But it was still energy spent heating those chokes.
Now in the case of these chargers, you would also want energy going into the batteries. So unless heating is an integral part of the process, any energy transferred to the cooling fluid is simply not going to the batteries. It is going into the cooling fluid. True efficiency would be the cabled not increasing in temperature because they were robust enough that they would have very little resistance. This liquid cooling is just saving the cables.
A liquid cooling system would be indicated if you were using cables too small for the purpose. Being too small, they would be shedding heat based on simple Ohm's Law. power dissipation . Their resistance would cause them to heat up. Some further research shows https://insideevs.com/vw-elect... Yup, those cables are way too small to be passing 350 KW through them. You run coolant through the cables to cool them and keep them from vaporizing. The coolant makes it possible to use that small of a cable, the cost is a lot of the energy being dissapated as heat. And if the coolant fails? so will the cable - probably very quickly. Could be a thousand amperes flowing through those cables. That is a dangerous design. Marketing tried to over-rule physics with the usual results.
This isn't rocket Surgery - so what do I not understand?
Where ya been homie? Haven't seen any of your guided missives for a while. We were afraid the rehab might not have worked, but here ya are, smart and sassy as ever. Good to know you're still with us. Ciao!
We'll get reminded how we need to continually change our passwords, use strong passwords, use encryption for everything, update immediately, or we'll cause the digital apocalypse, and browbeaten about our terrible security habits.....
And the corporations simply give our information away, as usual.
So.. what did we learn about just trying to tell a damn joke? No, Ol Olsoc, it's not that you can't do it. It's that you have to structure and give bigger hints up front. If someone is skimming instead of reading, they still need to see something a little ragged that makes them think, "wait... what?" and re-read it.
Have you ever tried simply using a simple mlipsppelling?
There's absolutely no evidence that that would work.
They're afraid of the mexican drug-addicted, drug-trafficking, lazy, welfare using, food-stamp selling, murderers are going to steal their jobs. Gotta wonder exactly what they do for a living.
Many are on SS Disability. Some indeterminate boo-boos.
They also think if you don't talk to investigators you will get away with whatever.
One of thie maxims of talking to the FBI is that the questions they ask you, they probably already know the answer. Lying to them isn't all that smart. As well, if all you get charged with is lying, they probably have some other plans for ya.
In this case, there's a lot more than that. Certainly Witness Tampering is a biggie. It's one case there the defendant has more burden of proof than the Prosecution. Just the attempt carries punishment as if it was a successful tampering. Otherwise, intimate interaction with Assange and his folks also might carry some stiff penalties. So if Stone decides to not cooperate, he very well might spend the rest of his life in prison.
Not to slashdot MAGA neckbeards. They're not sure what is on the surface these days, but they really hope somebody makes it Great before they get there. And builds a wall to keep out the aliens. Because they never learned to speak Romulan.
I wonder if the MAGA Neckbeards are going to take the jerbs that the Mexicans once had once we kick them out? Obviously not for the same pay though.
One of the major paradoxes of modern life is that if we were to put those who hire illegals in jail, we could cure the problem pronto.
"There appears to be incredible amounts of no evidence" should have been the real clue.
These are weird times we're living in, man. I forget which law or theory it is that says it's increasingly difficult to differentiate real opinion from sarcasm online, because enough people who actually have those opinions post online. You can see people claiming that there is no evidence in this very thread.
Poe's law, and yeah, I keep violating it. It's where a person can be as over the top sarcastic that it reads like something a fringy believer would write.
I should hang a sign over my computer reminding me not to be so sarcastic. but... its... so....hard sometimes!
"predicting which images they had been studying while awake -- because they were replaying them"
How does that work? Do the images create the same patterns in everyone's brains? Or are they saying that if they record what patterns each image makes in your brain once, then if you study that image any other day you'll be repeating the brain pattern in your sleep and they can recognize it? And if you study the same images every day what are we learning about memory and retention? Just confused by that part of the summary.
I'm pretty skeptical as well. If as stated, this woman can read the minds of these subjects in this simple manner - that would be the real discovery.
But since I get 5 hours of sleep a night, feel well rested, and haven't used an alarm but maybe a few times in the last 50 years, the Evangelist Scientists apparently think I have a psychiatric and/or neurological disorder, so we have to take my observations with a grain of salt.
There appears to be incredible amounts of no evidence.
Have you read the indictment? You understand he was indicted by a grand jury right? Do you know how that works? Where exactly did you get your law degree?
Sigh.... yes, I've read it. Stone is in a big pile of self inflicted shit. But doesn't anyone get that when a person writes "incredible amounts of no evidence" that he's meaning there is actually a lot of evidence?
Evidence, properly collected and protected, is not released until an indictment is made. It might amount to nothing, but just declaring there’s nothing before the evidence is released doesn’t make it true.
Come on folks - read my whole post, not just the headline.
The evidence of the text and emails he made are right there in the indictment. The evidence will be easy for any jury or judge to understand. He's toast. It's kind of pathetic to rationalise this away and yet...
There will be some people who will never admit the world is not flat, that we landed on the moon, that O'Blama is an American Citizen, or that there is any evidence of Russian interference, collusion, or criminal acts. They still think PizzaGate is real.
I read the document. Stone isn't in a real good place, no matter what the kooks think.
"There appears to be incredible amounts of no evidence." - Except for his own text messages black-letter outlining his obstruction effort? Except that, no evidence. Right. Excellent job Mr. Giuliani, you've done it again lol!
Not that I ever feel sorry for criminals, but him getting elected was the worst thing that could have happened to them.
On some level, I find this completely hilarious. He likely thought that he was invincible now. Looking forward to him trying to pardon himself when he is up personally. He will probably make history as the worst scum to ever be a US president.
I guess it's greed and avarice when taken to an extreme. I know if I were acting as a criminal, I'd fly as far below the radar as possible, and plan everything out to stay that way. But criminal greed and avarice knows no bounds I suppose, and always trips itself up.
Something tells me there will be a broad relaxation to the statutes of limitation, in which he might be offered to resign, or else be handcuffed as soon as he walks out of the White House in 2021.
There appears to be incredible amounts of no evidence.
The very strange thing about all of this is that if dear leader would have simply gone on with his shady practices, his cohorts - and eventually him - would have just gone on with their lives, not really under the radar, but not worth the trouble of being arrested.
Not that I ever feel sorry for criminals, but him getting elected was the worst thing that could have happened to them.
Meanwhile, I'm getting close to running out of popcorn and Tequila shots.
And as we enter the once coldest part of the Winter, the last week in January, first week of February, we have flood watches here in Pennsylvania. I mean, it's just weather, but after a while, just weather ends up being just climate.
O yea? Well here in ole Minny it's literally -20 for the next coupla weeks... also hey wait I thought weather != climate, which is it? Are you just re-labeling everything as needed in order to suit your current point?
Better go back and re read my post there, Einstein. You even quoted it.
Individual days are weather. A collection of trends end up being climate. Your - 20 degrees is weather. The Northeast's rainy year is weather, and so far we are warmer than usual. If several years are warmer than usual it starts to be climate.
Slashdot Mirror
uhm, so what state of matter is more efficient than liquid cooling? Would you say, screw it.. let the cable become hot and therefore much less efficient?
Oh geesh. Come on you guys, this is supporse to be a tech site. All metal conductors have some ohmic resistance. This resistance goes up or down based on the thickness of the metal. Too thin a conductor, and you start generating undesireable heat as the resistance does it's job and dissipates some of the powerFor maximum efficiency, you want as little resistance as possible.
Therefore, you want a bigger diameter cable, or a different way to attach if you insist on running 350 kW though the charging circuit.
You can use a smaller diameter cable, and cooling if you want that smaller cable to survive by not allowing it to go into thermal runaway. But it is still making heat. It's resistance is unchanged.
You want the power going into tha battery, not heating the fluid. This company simply exchanged efficiency for a smaller cable. And I certainly wouldn't design a charger like that. Not because it won't work - because the price of failure is so high.
Collusion is just how business is conducted these days, amirite?
Giuliani is that you?
Is crime even crime?
This. If the cable is getting hot, the conductor isn't big enough for the current its carrying.
This is a dumb comment.
Oh, AC. I love it when people call me out when they are 100 percent wrong.
Every cable heats up regardless of size if the current is non zero.
The issue is how much amperage you are trying to run through what sixe cable. The thinner the cable, the higher the resistance. The larger the current and the higher the resistance, the more heat will be generated .
There is a reason why we don't use 20 gauge wire in our car's starting circuit. Run a hundred amps through 5 feet of that and you have a fireworks show.
Cables can happily run hot enough to be glowing red and still happily pass current, the question is if that cable is safe to handle.
Telll me what happens when you get a positive feedback loop. As the temperature increases, the resistance increases. You reach a point where the temperature increases so much that it exceeds the melting point of the wire. And that is why this cable has a liquid cooling system on it.
Liquid cooling is just a way of increasing the current carrying capacity which is limited by the temperature rating of the non conductor components in a cable, specifically the insulation.
Oh lordy - this excess heat - Where is it coming from? The cable. Where is it going? Into the cooling medium. Where do we want it to go? Into the battery.
Pretty simple that. The amount of energy going into the battery, minus the energy going into the fluid, and you have an efficiency of the charging system.
And if that cooling system fails, we likely have a bad situation very quickly. I'm reading very roughly 1000 amperes, which is nothing to sneeze at. And looking at the cables on that recharge station, I'm guessing less than a second to shut it down.
Using the electricity to heat whatever liquid they are using isn't terribly efficient.
Using electricity to heat is 100% efficient. Heat transfer from the cable to the water jacket is a different question, but still incredibly efficient. I'm not sure you actually understand what it is that is being done here.
Reminds me of the Ham Radio operator who was bragging to me about how efficient his antenna was, because he put toroids on it and they got hot. This means energy wasted heating up toroids that would otherwise be readiated from the antenna. In his case, his setup had feedline radiation that he was choking off. But it was still energy spent heating those chokes.
Now in the case of these chargers, you would also want energy going into the batteries. So unless heating is an integral part of the process, any energy transferred to the cooling fluid is simply not going to the batteries. It is going into the cooling fluid. True efficiency would be the cabled not increasing in temperature because they were robust enough that they would have very little resistance. This liquid cooling is just saving the cables.
A liquid cooling system would be indicated if you were using cables too small for the purpose. Being too small, they would be shedding heat based on simple Ohm's Law. power dissipation . Their resistance would cause them to heat up. Some further research shows https://insideevs.com/vw-elect... Yup, those cables are way too small to be passing 350 KW through them. You run coolant through the cables to cool them and keep them from vaporizing. The coolant makes it possible to use that small of a cable, the cost is a lot of the energy being dissapated as heat. And if the coolant fails? so will the cable - probably very quickly. Could be a thousand amperes flowing through those cables. That is a dangerous design. Marketing tried to over-rule physics with the usual results.
This isn't rocket Surgery - so what do I not understand?
Err.. no, blow jobs are the stock and trade of business. Err...
Still livin in the 90's, fo shizzle.
See subject: Your MASSIVE FAIL in this life is
Where ya been homie? Haven't seen any of your guided missives for a while. We were afraid the rehab might not have worked, but here ya are, smart and sassy as ever. Good to know you're still with us. Ciao!
Cute and strange, Iceland's version of Cyndi Lauper. Trying to explain any more than that is hard.
Liquid cooled charging cables? Using the electricity to heat whatever liquid they are using isn't terribly efficient.
The whore colluding with the john against the government? No way!
Collusion is just how business is conducted these days, amirite?
And the corporations simply give our information away, as usual.
We need a few CIO's to spend a few years in jail.
So.. what did we learn about just trying to tell a damn joke? No, Ol Olsoc, it's not that you can't do it. It's that you have to structure and give bigger hints up front. If someone is skimming instead of reading, they still need to see something a little ragged that makes them think, "wait... what?" and re-read it.
Have you ever tried simply using a simple mlipsppelling?
There's absolutely no evidence that that would work.
They're afraid of the mexican drug-addicted, drug-trafficking, lazy, welfare using, food-stamp selling, murderers are going to steal their jobs. Gotta wonder exactly what they do for a living.
Many are on SS Disability. Some indeterminate boo-boos.
They also think if you don't talk to investigators you will get away with whatever.
One of thie maxims of talking to the FBI is that the questions they ask you, they probably already know the answer. Lying to them isn't all that smart. As well, if all you get charged with is lying, they probably have some other plans for ya.
In this case, there's a lot more than that. Certainly Witness Tampering is a biggie. It's one case there the defendant has more burden of proof than the Prosecution. Just the attempt carries punishment as if it was a successful tampering. Otherwise, intimate interaction with Assange and his folks also might carry some stiff penalties. So if Stone decides to not cooperate, he very well might spend the rest of his life in prison.
Not to slashdot MAGA neckbeards. They're not sure what is on the surface these days, but they really hope somebody makes it Great before they get there. And builds a wall to keep out the aliens. Because they never learned to speak Romulan.
I wonder if the MAGA Neckbeards are going to take the jerbs that the Mexicans once had once we kick them out? Obviously not for the same pay though.
One of the major paradoxes of modern life is that if we were to put those who hire illegals in jail, we could cure the problem pronto.
No 5 or 7 billion dollar wall needed.
"There appears to be incredible amounts of no evidence" should have been the real clue.
These are weird times we're living in, man. I forget which law or theory it is that says it's increasingly difficult to differentiate real opinion from sarcasm online, because enough people who actually have those opinions post online. You can see people claiming that there is no evidence in this very thread.
Poe's law, and yeah, I keep violating it. It's where a person can be as over the top sarcastic that it reads like something a fringy believer would write.
I should hang a sign over my computer reminding me not to be so sarcastic. but... its... so....hard sometimes!
Speaking of things that don't make sense -
"predicting which images they had been studying while awake -- because they were replaying them"
How does that work? Do the images create the same patterns in everyone's brains? Or are they saying that if they record what patterns each image makes in your brain once, then if you study that image any other day you'll be repeating the brain pattern in your sleep and they can recognize it? And if you study the same images every day what are we learning about memory and retention? Just confused by that part of the summary.
I'm pretty skeptical as well. If as stated, this woman can read the minds of these subjects in this simple manner - that would be the real discovery.
But since I get 5 hours of sleep a night, feel well rested, and haven't used an alarm but maybe a few times in the last 50 years, the Evangelist Scientists apparently think I have a psychiatric and/or neurological disorder, so we have to take my observations with a grain of salt.
There appears to be incredible amounts of no evidence.
Have you read the indictment? You understand he was indicted by a grand jury right? Do you know how that works? Where exactly did you get your law degree?
Sigh.... yes, I've read it. Stone is in a big pile of self inflicted shit. But doesn't anyone get that when a person writes "incredible amounts of no evidence" that he's meaning there is actually a lot of evidence?
Evidence, properly collected and protected, is not released until an indictment is made. It might amount to nothing, but just declaring there’s nothing before the evidence is released doesn’t make it true.
Come on folks - read my whole post, not just the headline.
The evidence of the text and emails he made are right there in the indictment. The evidence will be easy for any jury or judge to understand. He's toast. It's kind of pathetic to rationalise this away and yet...
There will be some people who will never admit the world is not flat, that we landed on the moon, that O'Blama is an American Citizen, or that there is any evidence of Russian interference, collusion, or criminal acts. They still think PizzaGate is real.
I read the document. Stone isn't in a real good place, no matter what the kooks think.
"There appears to be incredible amounts of no evidence." - Except for his own text messages black-letter outlining his obstruction effort? Except that, no evidence. Right. Excellent job Mr. Giuliani, you've done it again lol!
Hehe! Is crime actually a crime?
Except there is evidence right there in the indictment to support the charges. If you bothered to read it that is.
Read the whole post, not just the title, which was sarcasm.
"There appears to be incredible amounts of no evidence" should have been the real clue.
Not that I ever feel sorry for criminals, but him getting elected was the worst thing that could have happened to them.
On some level, I find this completely hilarious. He likely thought that he was invincible now. Looking forward to him trying to pardon himself when he is up personally. He will probably make history as the worst scum to ever be a US president.
I guess it's greed and avarice when taken to an extreme. I know if I were acting as a criminal, I'd fly as far below the radar as possible, and plan everything out to stay that way. But criminal greed and avarice knows no bounds I suppose, and always trips itself up.
Something tells me there will be a broad relaxation to the statutes of limitation, in which he might be offered to resign, or else be handcuffed as soon as he walks out of the White House in 2021.
There's 20 pages of evidence in the indictment. Feel free to actually read what you're trying to sound intelligent about.
Did you actually read my post? Or just the top tier sarcasm of the title?
There are mountains of evidence that have been released already. I'm pretty certain there is a Tsunami of evidence we don't know about yet.
The very strange thing about all of this is that if dear leader would have simply gone on with his shady practices, his cohorts - and eventually him - would have just gone on with their lives, not really under the radar, but not worth the trouble of being arrested.
Not that I ever feel sorry for criminals, but him getting elected was the worst thing that could have happened to them.
Meanwhile, I'm getting close to running out of popcorn and Tequila shots.
And as we enter the once coldest part of the Winter, the last week in January, first week of February, we have flood watches here in Pennsylvania. I mean, it's just weather, but after a while, just weather ends up being just climate.
O yea? Well here in ole Minny it's literally -20 for the next coupla weeks... also hey wait I thought weather != climate, which is it? Are you just re-labeling everything as needed in order to suit your current point?
Better go back and re read my post there, Einstein. You even quoted it.
Individual days are weather. A collection of trends end up being climate. Your - 20 degrees is weather. The Northeast's rainy year is weather, and so far we are warmer than usual. If several years are warmer than usual it starts to be climate.
Hopefully you knew that and are just trolling.