When it comes from hate fueled groups such as Move On and Daily Kos.
I'm all for directing criticism where it's due. God knows he earned his fair share. But let's be intellectually honest here and stop the unwarranted baseless attacks. Such attacks only diminish true criticism when it's really called for.
Not so much in western civilization these days. But, in another place at another time, many cheating women and their bastard children would have been murdered. I suppose if it still goes on as much as it always has, then it's under the radar when taken account globally.
It's sort of a constant tug-of-war in evolution of who can get away promiscuity, and who can't.
Haven't I've seen this movie before? Only that time, if a drop of water touched the skin, baby gremlins would start popping out in the form of fur balls.
Where you have fuel injection it's entirely likely you're going to get poor mixing, lean and rich areas within the cylinder.
Moving the spark position or changing the timing will not address poor fuel atomization. Modern cylinders invoke a "swirl" to the intake stroke to aid in the mixing process however. At least that's my understanding...
I'm guessing that by you moving the spark position with another plug, you were able to allow it to reach the pocket of the mixture that was most rich. Though personally, I've never had to chase an issue down that way. I would have attempted to adjust the timing or change out the plug to a hotter rating. YMMV
FYI, I remember the Honda CVCC engine. It was a rather unique design in that a small mixture of rich fuel was directed toward the spark plug chamber, while a leaner mixture was drawn into the cylinder. Apparently, this would provide a cleaner and more consistent burn. It was hailed as a major success in the 1970s to meet new emission standards.
In my experience, HDD failures half the time is due to mechanical failure or from a faulty controller chipset (PCB mounted on the drive). SSD drives also contain a controller chipset as well which poses to be the weakest link. The MTBF rating on any storage medium is useless to me if the data has been rendered inaccessible. So because of this risk, I would never build a server using RAID-0 with SSDs. Again, not because of the flash storage, but because of its controller chipset.
Usually when a new topic comes up on Slashdot and I'm one of a few people to start posting, I often decide to state an observation or ask a question. If you will, I'm throwing "chum in the water". I find it makes the discussion more interesting than for me to provide my own in-depth analysis and/or opinion.
I'd love to see a RAID5 array of SSDs in a Dell PowerEdge 2950. I'm willing to bet a few of these drives alone would saturate the bandwidth on a PERC 6i controller.
This single punch is all that's required to earn my respect. No speech, interview, or biography holds as much weight to the punch he threw. It's an act of pure love and protection of the sacrifice he made to make history for all mankind.
Assuming the engine bay is exposed, you would be fine as long as the beam didn't strike someone in the eye. I bet the discharge would be similar to the kind of laser used in tattoo removal.
IMHO, introduction to PC anatomy and troubleshooting should be mandatory in the high school curriculum in today's day and age, and would go a long way to mitigating the problem.
Replace "PC" with "Car" and I would tell you that most high schools already offer Autotech as a vocational class. No reason to make it mandatory. But if any class were to be mandatory, I would choose automotive tech over computers as people place more value, time, money, and dependence on the automobile.
I believe you. But truth be told, you can't compete on low price parts even if you wanted too. That market has been saturated by the likes of Newegg, CDW, and Zipzoomfly. Selling your time as a service is the *only* leverage you have as an independant shop or one-man-band tech. In fact, sometimes I'll spec out parts online for a customer and tell them to purchase it. They're often so happy to save money, the spend their "savings" on me to render addition professional services (advice, labor..etc).
In retrospect, the low cost of computers and parts has reaffirmed an emphasis on quality and customer service in the industry that you and I work in.
The point about the placement of the ignition point is good thinking
Obviously the placement of the ignition point is fixed with a spark plug. But, its timing can be advanced or retarded. So when I mean prior to TDC, yes, I'm talking about crank angle in relation to it being on the up-stroke, TDC, or down-stroke. So when I said a spark happens before TDC, I mean to say it happens on the upstroke just before it reaches top dead center.
I thought I was being clear in my original post. Obviously not given your snide remark.
Basically, your saying this new laser ignition method could start the ignition at any point along the Z axis of the cylinder? If so, I would imagine you would need multiple beams to converge and control focus along that axis. Sounds interesting if possible, but doubt it would do much good IMHO.
I can't find the link online, but I did read about some guys shop that made custom pistons. Basically, he would insert clay (or some putty substance) and shove the piston TDC to make a mold. He would then map this mold in a computer and run a detonation simulation to calculate the shock wave propagation in omni direction. His theory is that by custom milling a dish in the piston to match the cylinder head (based on computer calculations), you could obtain the perfect (or near) detonation shockwave sphere.
Whats the compression ratio? Seems that in some years, it's 9.7:1 while the new GS is 12:1. If it's a GS series, then yes. You will need an efficient plug with a narrow spark gap. Unless the coil pack is upgrade, the rule of thumb is that your gap must be more narrow to compensate for increase compression ratios.
other engines are going to have exactly the same problem with stratification of the fuel/air mixture and combustion efficiency but hide it behind multiple cylinders.
No they're not. At least, not if your plugs, wires, and coil is up to specification. While it is true the more cylinders you have, the greater the damping effect you will have that "hides" a miss-fire. That, and a larger flywheel that goes with it. But it must be stated that misfires in a multi-cylinder is *not* acceptable. If you are getting misfires, take corrective measures to address the ignition problems rather then ignore it.
A LI plug will allow engine designers to put the spark where they need it, possibly even beyond TDC since there is nothing to get in the way.
I'm sorry, but you seemed to have lost me here. FYI all engines ignite just before TDC. If you ignited the mixture at or after TDC, you will have a loss of power because of the delay in flame propagation.
What happens when a conventional spark plug gets sooty?
It arcs through it. Simple as that. Quite normal.
The problem with plug failure is often caused by fouling (excessive oil deposits glazing the electrode) or out-of-spec gaping from excessive use. If the electrode still has meat on it, you should be able to just re-gap it. But IMHO, if you're going to go through all that trouble, just replace the plugs with new ones. You will have to eventually anyways.
Detonation happens regardless of your ignition source.
When you have increased heat combined with low octane gasoline, you end up with sudo-random detonation because it's not dependent on an artificial source of ignition (spark, laser, gloplug) in the first place. Both controlled and non-controlled forms of ignition happen prior to TDC (top dead center). The difference here is that pre-ignition/detonation happen far more in advanced causing engine knocking. That's mechanically a very bad thing.
As for the flame kernel, that's bogus. A laser system or spark plug will yield the same results with regards to flame propagation.
I can imagine a thin film of black carbon absorbing the laser pulse and converting it into heat right on the lens. Iâ(TM)m not sure what theyâ(TM)re made of, but I do hope the research includes the possibility of melting. Spark plugs are made of ceramic instead of glass for a reason as it has superior heat and electrical insulation properties.
When it comes to ignition, compression is never a problem these days. What compression does do is increase *heat*. So unless your running gasoline with a higher octane rating, you will get detonation and pre-ignition the higher your compression ration is. This of course, can be offset through timing retardation which in fact often does happen electronically.
The only real advantage I see with a laser ignition system is greater consistency and timing to be used in high revving engines such as F1 race cars. At 18,000 RPM, precision is everything.
As far as I know it, we have three main instruction sets. Integer, Floating Point, and Vector (SSE, MMX..etc). Would it more likely be that we would end up with the forth set being Quantum? Or, would it be possible to have an entire CPU quantum based?
I've often heard Jupiter called the "vacuum cleaner" of space in that it sucks up foreign objects that stray into our solar system. Be thankful we have this planet among us. It's sorta like our protector.
It does reek of Al Gore's M/O in that he would use any an all questionable excuse to prove GW. It's hot outside, he thinks it's GW. If it's cold outside, it's GW. That nut case even blamed hurricane Katrina on man made GW.
Oh really Al? How so? Did you have some sort of access to an alternate reality machine that *proves* if man never entered into the industrial revolution, that hurricane would never had struck? What a fucktard he is! A Disgrace to humanity for stooping so low as to politicize on a very traumatic natural event so as to seem more relevant.
I'd bet he would blame earthquakes on GW if he could get away with it. And you know what, he just might too purely for political reasons.
Slashdot Mirror
Since when is bush-bashing not legit?
When it comes from hate fueled groups such as Move On and Daily Kos.
I'm all for directing criticism where it's due. God knows he earned his fair share. But let's be intellectually honest here and stop the unwarranted baseless attacks. Such attacks only diminish true criticism when it's really called for.
Not so much in western civilization these days. But, in another place at another time, many cheating women and their bastard children would have been murdered. I suppose if it still goes on as much as it always has, then it's under the radar when taken account globally.
It's sort of a constant tug-of-war in evolution of who can get away promiscuity, and who can't.
Haven't I've seen this movie before? Only that time, if a drop of water touched the skin, baby gremlins would start popping out in the form of fur balls.
And as for the aftermath? Well, check out this two part video from Future Weapons. Scary shit!
Part1: http://www.youtube.com/watch?v=Fvu08Y9XJ0U
Part2: http://www.youtube.com/watch?v=0odJKYTzXg8&feature=related
Where you have fuel injection it's entirely likely you're going to get poor mixing, lean and rich areas within the cylinder.
Moving the spark position or changing the timing will not address poor fuel atomization. Modern cylinders invoke a "swirl" to the intake stroke to aid in the mixing process however. At least that's my understanding...
I'm guessing that by you moving the spark position with another plug, you were able to allow it to reach the pocket of the mixture that was most rich. Though personally, I've never had to chase an issue down that way. I would have attempted to adjust the timing or change out the plug to a hotter rating. YMMV
FYI, I remember the Honda CVCC engine. It was a rather unique design in that a small mixture of rich fuel was directed toward the spark plug chamber, while a leaner mixture was drawn into the cylinder. Apparently, this would provide a cleaner and more consistent burn. It was hailed as a major success in the 1970s to meet new emission standards.
In my experience, HDD failures half the time is due to mechanical failure or from a faulty controller chipset (PCB mounted on the drive). SSD drives also contain a controller chipset as well which poses to be the weakest link. The MTBF rating on any storage medium is useless to me if the data has been rendered inaccessible. So because of this risk, I would never build a server using RAID-0 with SSDs. Again, not because of the flash storage, but because of its controller chipset.
I could have, but didn't ;)
Usually when a new topic comes up on Slashdot and I'm one of a few people to start posting, I often decide to state an observation or ask a question. If you will, I'm throwing "chum in the water". I find it makes the discussion more interesting than for me to provide my own in-depth analysis and/or opinion.
Halos? Hmmmm
I'd love to see a RAID5 array of SSDs in a Dell PowerEdge 2950. I'm willing to bet a few of these drives alone would saturate the bandwidth on a PERC 6i controller.
Sweet.
It's called nuclear civil war. I doubt other countries would get involved.
This single punch is all that's required to earn my respect. No speech, interview, or biography holds as much weight to the punch he threw. It's an act of pure love and protection of the sacrifice he made to make history for all mankind.
Buzz Aldrin, you f-ing ROCK!!!
Assuming the engine bay is exposed, you would be fine as long as the beam didn't strike someone in the eye. I bet the discharge would be similar to the kind of laser used in tattoo removal.
Check out this example. http://www.youtube.com/watch?v=aRgLUoJdcOU
Replace "PC" with "Car" and I would tell you that most high schools already offer Autotech as a vocational class. No reason to make it mandatory. But if any class were to be mandatory, I would choose automotive tech over computers as people place more value, time, money, and dependence on the automobile.
I believe you. But truth be told, you can't compete on low price parts even if you wanted too. That market has been saturated by the likes of Newegg, CDW, and Zipzoomfly. Selling your time as a service is the *only* leverage you have as an independant shop or one-man-band tech. In fact, sometimes I'll spec out parts online for a customer and tell them to purchase it. They're often so happy to save money, the spend their "savings" on me to render addition professional services (advice, labor..etc).
In retrospect, the low cost of computers and parts has reaffirmed an emphasis on quality and customer service in the industry that you and I work in.
The point about the placement of the ignition point is good thinking
Obviously the placement of the ignition point is fixed with a spark plug. But, its timing can be advanced or retarded. So when I mean prior to TDC, yes, I'm talking about crank angle in relation to it being on the up-stroke, TDC, or down-stroke. So when I said a spark happens before TDC, I mean to say it happens on the upstroke just before it reaches top dead center.
I thought I was being clear in my original post. Obviously not given your snide remark.
Basically, your saying this new laser ignition method could start the ignition at any point along the Z axis of the cylinder? If so, I would imagine you would need multiple beams to converge and control focus along that axis. Sounds interesting if possible, but doubt it would do much good IMHO.
I can't find the link online, but I did read about some guys shop that made custom pistons. Basically, he would insert clay (or some putty substance) and shove the piston TDC to make a mold. He would then map this mold in a computer and run a detonation simulation to calculate the shock wave propagation in omni direction. His theory is that by custom milling a dish in the piston to match the cylinder head (based on computer calculations), you could obtain the perfect (or near) detonation shockwave sphere.
Whats the compression ratio? Seems that in some years, it's 9.7:1 while the new GS is 12:1. If it's a GS series, then yes. You will need an efficient plug with a narrow spark gap. Unless the coil pack is upgrade, the rule of thumb is that your gap must be more narrow to compensate for increase compression ratios.
other engines are going to have exactly the same problem with stratification of the fuel/air mixture and combustion efficiency but hide it behind multiple cylinders.
No they're not. At least, not if your plugs, wires, and coil is up to specification. While it is true the more cylinders you have, the greater the damping effect you will have that "hides" a miss-fire. That, and a larger flywheel that goes with it. But it must be stated that misfires in a multi-cylinder is *not* acceptable. If you are getting misfires, take corrective measures to address the ignition problems rather then ignore it.
A LI plug will allow engine designers to put the spark where they need it, possibly even beyond TDC since there is nothing to get in the way.
I'm sorry, but you seemed to have lost me here. FYI all engines ignite just before TDC. If you ignited the mixture at or after TDC, you will have a loss of power because of the delay in flame propagation.
What happens when a conventional spark plug gets sooty?
It arcs through it. Simple as that. Quite normal.
The problem with plug failure is often caused by fouling (excessive oil deposits glazing the electrode) or out-of-spec gaping from excessive use. If the electrode still has meat on it, you should be able to just re-gap it. But IMHO, if you're going to go through all that trouble, just replace the plugs with new ones. You will have to eventually anyways.
Detonation happens regardless of your ignition source.
When you have increased heat combined with low octane gasoline, you end up with sudo-random detonation because it's not dependent on an artificial source of ignition (spark, laser, gloplug) in the first place. Both controlled and non-controlled forms of ignition happen prior to TDC (top dead center). The difference here is that pre-ignition/detonation happen far more in advanced causing engine knocking. That's mechanically a very bad thing.
As for the flame kernel, that's bogus. A laser system or spark plug will yield the same results with regards to flame propagation.
Not necessarily.
I can imagine a thin film of black carbon absorbing the laser pulse and converting it into heat right on the lens. Iâ(TM)m not sure what theyâ(TM)re made of, but I do hope the research includes the possibility of melting. Spark plugs are made of ceramic instead of glass for a reason as it has superior heat and electrical insulation properties.
When it comes to ignition, compression is never a problem these days. What compression does do is increase *heat*. So unless your running gasoline with a higher octane rating, you will get detonation and pre-ignition the higher your compression ration is. This of course, can be offset through timing retardation which in fact often does happen electronically.
The only real advantage I see with a laser ignition system is greater consistency and timing to be used in high revving engines such as F1 race cars. At 18,000 RPM, precision is everything.
*smacks my forehead*
Of course!!! I would need a quantum CPU to get the correct answer because "Yes and No" are still undetermined. Now I understand ;)
As far as I know it, we have three main instruction sets. Integer, Floating Point, and Vector (SSE, MMX..etc). Would it more likely be that we would end up with the forth set being Quantum? Or, would it be possible to have an entire CPU quantum based?
I've often heard Jupiter called the "vacuum cleaner" of space in that it sucks up foreign objects that stray into our solar system. Be thankful we have this planet among us. It's sorta like our protector.
Duke Nukem Forever died and was reincarnated into...Diablo 3.
And if you have to ask. Yes; it sucks being a prophet.
It does reek of Al Gore's M/O in that he would use any an all questionable excuse to prove GW. It's hot outside, he thinks it's GW. If it's cold outside, it's GW. That nut case even blamed hurricane Katrina on man made GW.
Oh really Al? How so? Did you have some sort of access to an alternate reality machine that *proves* if man never entered into the industrial revolution, that hurricane would never had struck? What a fucktard he is! A Disgrace to humanity for stooping so low as to politicize on a very traumatic natural event so as to seem more relevant.
I'd bet he would blame earthquakes on GW if he could get away with it. And you know what, he just might too purely for political reasons.
That sir is Al Gore's M/O. You can bank on that!