I was reading an ebook called "Race Against The Machine: How the Digital Revolution is Accelerating Innovation, Driving Productivity, and Irreversibly Transforming Employment and the Economy" which is about the problem of technology eliminating jobs and the role of I.T. in the recession and jobless recovery and there is a section where the authors are talking about the rise of computing power and the advent of driverless vehicles and it struck me that we are probably in the last generation where truck driving is going to be a human job. With the problems in I.T. and the lack of jobs in my hometown (I can't move from here for reasons I won't go into) I was considering becoming one myself, but it is likely that it is another job that is going to exit stage left. I don't know what to feel about that, really. I am sure not many people on Slashdot care about that very much, but truckers are an American fixture and it seems like they pretty soon be another piece of roadkill on the technology highway.
As they say, the only constant in life is change. And while everyone handles it differently, should you find yourself in a job that is going the way of the buggy whip maker, it can be advantageous to take their lesson to heart. Make sure you are able to preform more than one job well enough to get by on. That way if the horse and buggy industry goes under, you can always fall back to selling BDSM gear.
The Ultra Deep Field image was over 1.1 million seconds of exposure. It's just not practical to do exposures like that from the ground.
The 1.1 million seconds is interesting. As soon as I saw the number I wanted to figure out how many days that was. Turns out it is ~12.73 days. That time frame really made me think that whomever was controlling the scheduling kicked off this long picture very early Monday morning, at the start of their work week, and then waited till the following Friday, before heading home for the start of the weekend, to end the exposure.
I've been working business hours for just long enough this seemed like it must be right;-)
Looking at that image, the two main features look like symmetric interference patterns, fairly simple ones. Why not do the Fourier (or other) analysis to recompose the original light signals?
You might be right, but I think it is possible those are jets being emitted from the black hole... they say they were able to measure the temp across parts of it, the hottest parts blasting out of it could be those bright points on the image. It would be quite interesting if that was ever confirmed.
A-Freaking-men.
You know, it just occurred to me that there really isn't a secular alternative to 'Amen' that gets the point across quite as well (at least not one I know of).
I think that is what the new batch of kids are using the word, "This!" for... even though it doesn't quite jive with the cut of my jib.:-)
The rule says "Don't mix the vendor networking gear."
Did they say why? That kind of strikes me as odd to the point of ridiculous too, but if they at least explain it, maybe it would get a little less weird.
No, I don't really think it would get less weird, but.. WTF! WHY?
My best guess would be for support reasons. Once you are dealing with a network problem, being able to have a single support line for hardware / OS problems on your network gear really makes life easier. Especially when dealing with setups that cost lots of money, no one is happy when you have more than one vendor pointing the finger at the other (or worse, having to send your gear into their lab for diag and they come back much later to tell you it must be a problem with the other vendors gear, and can you please send that in as well so we can work it in the lab (at growing cost to yourself/company, and depending on your contract, likely the loss of your million dollar router while they look at it)), although it sure can make for some interesting conference calls if you can get the engineers from competing companies on the phone together, and just listen to them duke it out.
I don't get why they want to do this with drones... It seems like a less efficient and more expensive method of tracking compared to the satellites they are using now...
My guess would be to have more control of what they can see. Satellites look down, whereas UAV's can reposition themselves rather swiftly and look from numerous angles. The other reason would be more of a psychological one, the bad guys will some times get to see these things and perhaps will think twice, and the fearful citizen might feel like they are now more secure since the watching eye in the sky will somehow be able to protect them better.
At least from this bit, right at the end of the letter. Novell truly understands the nature of open source and seems very commited to the effort:
To ensure an open development process NOVELL would require that it will not make use of any specifications or programming documentation that can not be made available to other developers from the open source community also under a suitable documentation publication program which will permit the release of source code under an open source license.
This step will help to ensure continued maintenance for hardware components beyond the maintenance cycle of the manufacturer and will help customer to secure their investment. Furthermore it will demonstrate and underline AMD's full commitment to the open source development model and send a positive signal to the open source community which this has been waiting for for a long time.
NOVELL will ensure that a driver with at least base functionalities is available for earlier releases of the X Window System at least back to X11 R6.9 to be integrated in existing enterprise products by their respective vendors.
We use cable/zip ties in our datacenter, to keep the back of the racks cable mess more organized, all of the cable runs get tied back to the sides of the rack (mostly cat5). We snip off the excess from the tie which can leave a sharp edge. To deal with that, honestly, we just try to cut them off as close as possible to the racket box, as horizontal as possible. That usually results in a smooth'ish, non-sharp end. I will say that our racks look very neat, almost artistic, although we have practically no service loops. That said, thousands of servers and several years later, not having service loops for cat5 hasn't caused any problem. I'd love to provide pictures, because like I said, it really does look like art, but we cannot have camera's in the datacenter.
One thing you can do, if you have hearing loss (I have ~90% hearing lose in my left ear, yay genetics!)... and perhaps this may not apply to everyone owns personal... taste, especially if you have money and other options and don't mind wasting lots of cash. But their is not a Hearing Aid Price Bubble occurring. This is only a problem if you are very squeamish, but a cheaper solution exists.
If you don't mind looking through the obituaries in your local paper, you can find recently deceased. Give them a couple weeks to get through some of there pain of lose, and then look them up and give them a call. Ask them if their recently deceased was using hearing aids. It seems as people age, many end up needing hearing aids, and more than a few have, REALLY good ones. Explain your own ear issues to them, and how you wouldn't mind giving them some money for them. The lady I contacted was just going to throw her recently deceased husbands hearing aids away, not knowing what else to do with them. Being near deaf in my left ear (never having past a hearing test in that ear), it was a wonderful thing to find.
Interesting points that I've not heard before (granted, I've not done research on our geothermal activities), can you please tell me what plant this is occurring at, as I'd like to do some more reading on it.
I'll have you know that my intensive porpoises have freaking laser beams mounted on their heads, I will take your issue with 'Irregardless' and raise you one 'WHOOSH'!:-)
Irregardless, grammer and spelin ain't no science, its a art form... and for all intensive porpoises, I lost power last night do to the slight'est bit of wind from whether system Irene (I live in south florida) from about ~6:30PM till ~3:00AM... at lease my generator worked, and FPL was on my road buy 8PM. Not sure why I came into work... I'm so tierd.
My understanding is that the LHC generates so much data, that most of it is discarded immediately without going to disk. Seems like this would be a good solution to there data problems.
Astronomers believe they caught the supernova within hours of its explosion, a rare feat made possible with a specialized survey telescope and state-of-the-art computational tools
An amazingly rare feat, as not only did they catch the supernova right away, they somehow violated the universal speed limit of c in order to do so. Someone call the physics police on "chill" or Soulskill or whoever made that summary.
It isn't the summary at fault, from TFA:
Astronomers believe they caught the supernova within hours of its explosion, a rare feat made possible with a specialized survey telescope and state-of-the-art computational tools.
I think it is assumed that when they say they that found it within hours, they mean they found it within hours of the first light of this event reaching Earth, but since they didn't say so explicitly, I imagine you won't be the only one repeating this like they found something clever.
Yeah you could hold the left mouse button down to continuously attack and move in the direction of the mouse pointer, and then hit left shift to make your character stop moving but keep attacking. Ah the memories of my javazon.
It's a matter of practicality; you generally move whichever weighs less.
(Totally offtopic) Generally yes you do move which ever weights less, however there are times when moving the one that weighs more can win you a bet.
Back in another life I would do a little carpentry work to make ends meet. On every new job I went, I could always find someone who would take me up on the bet of me being able to put a nail all the way into a 2x4 without needing to use a hammer of any sort, the only things I would use were a nail, a 2x4, and my hands. The trick is putting the nail point up on its head up on something at least a little off the floor, then swinging the 2x4 at the nail. I've won many a 12pack and $20's doing that:)
It could be that these are simply prototypes and if the concept works out they then bother to spend the extra cash for something that is radiation hardened. Seems like it would be a much cheaper approach to take.
The overhead in communications has to be stagger at that many nodes. And I suppose it depends on the workload, but I was under the impression that you get serious diminishing returns when you scale that large, to the point it might be faster to have one hundred clusters with 1000 nodes in each. Can anyone speak on how they get around this?
I think this is actually intentional. Most of the private trackers I use that use ratios and penalize you for going below a certain percentage, also include the option to pay them some mount monthly/yearly for premium access where your ratio is overlooked.
Some schools and businesses are pretty large. I know the first few times I was walking around the old IBM building in Boca Raton ( http://www-03.ibm.com/ibm/history/exhibits/vintage/vintage_4506VV8004.html ), it could have been useful. Some of the hallways are so long that if you step side to side and keep staring down the hall, the hall seems to bend like a snakes tail.
Well that's great if all the servers are in the same location. But what about cases where you've got some servers in LA and others in NYC, like Amazon and I think Google does, how do they sync up?
I'm sure their are numerous ways to approach this problem. But a lot of it is just having a huge pipe going between your datacenters to connect your environments. Then it is just a matter of having numerous near identical platforms/clusters that you can take in and out of your load balancers at each site.
So say you had servers in two different geographical locations, and in both locations you had at least a few clusters. You keep at least one or two cluster hot(live customer facing) in both sites and sync down the file deltas to the local cold(not live) cluster. The cold clusters then cross sync those deltas to the remote locations cold clusters. To allow the hot clusters to stay in sync you can have them check to see if the local cold cluster has a more current file, and if so pull it into the hot cluster and serve it, or you could just take the hot cluster out of the LB and sync it while it is offline.
All this gives you the added benefit of being able to build out new clusters you can add as you need more processing/storage capacity, and should one of the clusters go crazy, swap it out of the LB for one of the ones sitting idle so you can fix the broken one without any real downtime. That said, I have no idea how Amazon and Google do their thing, but I do have some experience in this area.
Slashdot Mirror
I was reading an ebook called "Race Against The Machine: How the Digital Revolution is Accelerating Innovation, Driving Productivity, and Irreversibly Transforming Employment and the Economy" which is about the problem of technology eliminating jobs and the role of I.T. in the recession and jobless recovery and there is a section where the authors are talking about the rise of computing power and the advent of driverless vehicles and it struck me that we are probably in the last generation where truck driving is going to be a human job. With the problems in I.T. and the lack of jobs in my hometown (I can't move from here for reasons I won't go into) I was considering becoming one myself, but it is likely that it is another job that is going to exit stage left. I don't know what to feel about that, really. I am sure not many people on Slashdot care about that very much, but truckers are an American fixture and it seems like they pretty soon be another piece of roadkill on the technology highway.
As they say, the only constant in life is change. And while everyone handles it differently, should you find yourself in a job that is going the way of the buggy whip maker, it can be advantageous to take their lesson to heart. Make sure you are able to preform more than one job well enough to get by on. That way if the horse and buggy industry goes under, you can always fall back to selling BDSM gear.
The Ultra Deep Field image was over 1.1 million seconds of exposure. It's just not practical to do exposures like that from the ground.
The 1.1 million seconds is interesting. As soon as I saw the number I wanted to figure out how many days that was. Turns out it is ~12.73 days. That time frame really made me think that whomever was controlling the scheduling kicked off this long picture very early Monday morning, at the start of their work week, and then waited till the following Friday, before heading home for the start of the weekend, to end the exposure.
;-)
I've been working business hours for just long enough this seemed like it must be right
Looking at that image, the two main features look like symmetric interference patterns, fairly simple ones. Why not do the Fourier (or other) analysis to recompose the original light signals?
You might be right, but I think it is possible those are jets being emitted from the black hole... they say they were able to measure the temp across parts of it, the hottest parts blasting out of it could be those bright points on the image. It would be quite interesting if that was ever confirmed.
http://www.space.com/5285-powerful-black-hole-jet-explained.html
Sounds like they just reworded the Towers of Hanoi puzzle, which has been around for a long time.
A-Freaking-men. You know, it just occurred to me that there really isn't a secular alternative to 'Amen' that gets the point across quite as well (at least not one I know of).
I think that is what the new batch of kids are using the word, "This!" for... even though it doesn't quite jive with the cut of my jib. :-)
Did they say why? That kind of strikes me as odd to the point of ridiculous too, but if they at least explain it, maybe it would get a little less weird.
No, I don't really think it would get less weird, but .. WTF! WHY?
My best guess would be for support reasons. Once you are dealing with a network problem, being able to have a single support line for hardware / OS problems on your network gear really makes life easier. Especially when dealing with setups that cost lots of money, no one is happy when you have more than one vendor pointing the finger at the other (or worse, having to send your gear into their lab for diag and they come back much later to tell you it must be a problem with the other vendors gear, and can you please send that in as well so we can work it in the lab (at growing cost to yourself/company, and depending on your contract, likely the loss of your million dollar router while they look at it)), although it sure can make for some interesting conference calls if you can get the engineers from competing companies on the phone together, and just listen to them duke it out.
I don't get why they want to do this with drones... It seems like a less efficient and more expensive method of tracking compared to the satellites they are using now...
My guess would be to have more control of what they can see. Satellites look down, whereas UAV's can reposition themselves rather swiftly and look from numerous angles. The other reason would be more of a psychological one, the bad guys will some times get to see these things and perhaps will think twice, and the fearful citizen might feel like they are now more secure since the watching eye in the sky will somehow be able to protect them better.
To ensure an open development process NOVELL would require that it will not make use of any specifications or programming documentation that can not be made available to other developers from the open source community also under a suitable documentation publication program which will permit the release of source code under an open source license.
This step will help to ensure continued maintenance for hardware components beyond the maintenance cycle of the manufacturer and will help customer to secure their investment. Furthermore it will demonstrate and underline AMD's full commitment to the open source development model and send a positive signal to the open source community which this has been waiting for for a long time.
NOVELL will ensure that a driver with at least base functionalities is available for earlier releases of the X Window System at least back to X11 R6.9 to be integrated in existing enterprise products by their respective vendors.
We use cable/zip ties in our datacenter, to keep the back of the racks cable mess more organized, all of the cable runs get tied back to the sides of the rack (mostly cat5). We snip off the excess from the tie which can leave a sharp edge. To deal with that, honestly, we just try to cut them off as close as possible to the racket box, as horizontal as possible. That usually results in a smooth'ish, non-sharp end. I will say that our racks look very neat, almost artistic, although we have practically no service loops. That said, thousands of servers and several years later, not having service loops for cat5 hasn't caused any problem. I'd love to provide pictures, because like I said, it really does look like art, but we cannot have camera's in the datacenter.
One thing you can do, if you have hearing loss (I have ~90% hearing lose in my left ear, yay genetics!)... and perhaps this may not apply to everyone owns personal... taste, especially if you have money and other options and don't mind wasting lots of cash. But their is not a Hearing Aid Price Bubble occurring. This is only a problem if you are very squeamish, but a cheaper solution exists.
If you don't mind looking through the obituaries in your local paper, you can find recently deceased. Give them a couple weeks to get through some of there pain of lose, and then look them up and give them a call. Ask them if their recently deceased was using hearing aids. It seems as people age, many end up needing hearing aids, and more than a few have, REALLY good ones. Explain your own ear issues to them, and how you wouldn't mind giving them some money for them. The lady I contacted was just going to throw her recently deceased husbands hearing aids away, not knowing what else to do with them. Being near deaf in my left ear (never having past a hearing test in that ear), it was a wonderful thing to find.
Interesting points that I've not heard before (granted, I've not done research on our geothermal activities), can you please tell me what plant this is occurring at, as I'd like to do some more reading on it.
Too slow and USB3 are expensive at this time.
What kind of optical device is going to saturate USB2's 60 MB/s? I'm curious as didn't think they were able to reach those speeds.
I'll have you know that my intensive porpoises have freaking laser beams mounted on their heads, I will take your issue with 'Irregardless' and raise you one 'WHOOSH'! :-)
A good solution to THEIR data problems.
Irregardless, grammer and spelin ain't no science, its a art form... and for all intensive porpoises, I lost power last night do to the slight'est bit of wind from whether system Irene (I live in south florida) from about ~6:30PM till ~3:00AM... at lease my generator worked, and FPL was on my road buy 8PM. Not sure why I came into work... I'm so tierd.
My understanding is that the LHC generates so much data, that most of it is discarded immediately without going to disk. Seems like this would be a good solution to there data problems.
Astronomers believe they caught the supernova within hours of its explosion, a rare feat made possible with a specialized survey telescope and state-of-the-art computational tools
An amazingly rare feat, as not only did they catch the supernova right away, they somehow violated the universal speed limit of c in order to do so. Someone call the physics police on "chill" or Soulskill or whoever made that summary.
It isn't the summary at fault, from TFA:
Astronomers believe they caught the supernova within hours of its explosion, a rare feat made possible with a specialized survey telescope and state-of-the-art computational tools.
I think it is assumed that when they say they that found it within hours, they mean they found it within hours of the first light of this event reaching Earth, but since they didn't say so explicitly, I imagine you won't be the only one repeating this like they found something clever.
Yeah you could hold the left mouse button down to continuously attack and move in the direction of the mouse pointer, and then hit left shift to make your character stop moving but keep attacking. Ah the memories of my javazon.
It's a matter of practicality; you generally move whichever weighs less.
(Totally offtopic) Generally yes you do move which ever weights less, however there are times when moving the one that weighs more can win you a bet.
:)
Back in another life I would do a little carpentry work to make ends meet. On every new job I went, I could always find someone who would take me up on the bet of me being able to put a nail all the way into a 2x4 without needing to use a hammer of any sort, the only things I would use were a nail, a 2x4, and my hands. The trick is putting the nail point up on its head up on something at least a little off the floor, then swinging the 2x4 at the nail. I've won many a 12pack and $20's doing that
It could be that these are simply prototypes and if the concept works out they then bother to spend the extra cash for something that is radiation hardened. Seems like it would be a much cheaper approach to take.
The overhead in communications has to be stagger at that many nodes. And I suppose it depends on the workload, but I was under the impression that you get serious diminishing returns when you scale that large, to the point it might be faster to have one hundred clusters with 1000 nodes in each. Can anyone speak on how they get around this?
My mistake they are deploying this near the front. I just read the pdf you linked below. Thanks for sharing.
My understanding is that DCGS-A is located at Langley Air Force Base, so these concerns aren't an issue.
I think this is actually intentional. Most of the private trackers I use that use ratios and penalize you for going below a certain percentage, also include the option to pay them some mount monthly/yearly for premium access where your ratio is overlooked.
Some schools and businesses are pretty large. I know the first few times I was walking around the old IBM building in Boca Raton ( http://www-03.ibm.com/ibm/history/exhibits/vintage/vintage_4506VV8004.html ), it could have been useful. Some of the hallways are so long that if you step side to side and keep staring down the hall, the hall seems to bend like a snakes tail.
Well that's great if all the servers are in the same location. But what about cases where you've got some servers in LA and others in NYC, like Amazon and I think Google does, how do they sync up?
I'm sure their are numerous ways to approach this problem. But a lot of it is just having a huge pipe going between your datacenters to connect your environments. Then it is just a matter of having numerous near identical platforms/clusters that you can take in and out of your load balancers at each site.
So say you had servers in two different geographical locations, and in both locations you had at least a few clusters. You keep at least one or two cluster hot(live customer facing) in both sites and sync down the file deltas to the local cold(not live) cluster. The cold clusters then cross sync those deltas to the remote locations cold clusters. To allow the hot clusters to stay in sync you can have them check to see if the local cold cluster has a more current file, and if so pull it into the hot cluster and serve it, or you could just take the hot cluster out of the LB and sync it while it is offline.
All this gives you the added benefit of being able to build out new clusters you can add as you need more processing/storage capacity, and should one of the clusters go crazy, swap it out of the LB for one of the ones sitting idle so you can fix the broken one without any real downtime. That said, I have no idea how Amazon and Google do their thing, but I do have some experience in this area.