I'll do power consumption, then someone else can build off that to do hear dissipation.
Published consumption for the ST3500641AS (500GB) is 7.4W idle, 12.6W seek. Let's assume that at any given time, only 0.1% of the drives (24,590) are seeking. That should be enough throughput for your application.:)
The seeking drives are using 309.8kW, the remaining drives are using 181.7MW. Assuming an electric rate of $0.09/kWh, I'm coming up with a monthly electric bill of $11,799,721.49.
As a useful side-effect of this calculation, I can tell you that adding this drive to your computer will add about $0.65/month to your power bill at a 50% duty cycle.
Keep in mind that none of these figures are taking power supply inefficieny into consideration!
I'm glad that the new prefixes of gibi, kibi etc. are available now - in 20 years time, everyone will use them, and you'll just have to adapt:)
No, everyone won't use them, because they sound stupid, and for Joe Average they just add to the confusion. Everyone will just adapt to the fact that 1GB = 1,000,000,000 bytes. Computers are powerful enough now that there's no need for the user to have to think about powers of two.
Even if your 1GB stick of RAM is actually 1,073,741,824 bytes, it's still OK to just call it a gigabyte, and only the computer geeks need to know that it's actually about 7% over-spec.
The closest I will ever come to saying "kibibyte" is when I'm buying dog food and say "kibbles and bits (and bits and bits...)."
Now there has to "suddenly" be normal space at the center of the spinning black hole, but that used to be inside the spherical event horizon. So somehow this normal space had to get "out." But I thought that was impossible. Something doesn't make sense here.
Well, space is not really a thing. Energy and matter cannot get out of the black hole*, but space is neither energy nor matter. Because the black hole is moving through space**, then there are constantly areas of space of which you could say, "A moment ago that space was inside the event horizon, now it is not. How could it get out?" Well, it didn't get out, the event horizon's position just changed. Similarly, if it acquires angular momentum, it changes shape. As Hawking radiation escapes, it changes size (gets smaller).
* - Hawking radiation, yeah, but it doesn't really escape from 'inside' the event horizon.
** - Special relativity means the laws of physics have to work in all frames of reference, and even a black hole that you might think of as stationary is actually moving in every possible frame of reference but one.
If the general thesis of Natural Selection through Evolution is that mutations beneficial to an environment tend to stick, you'd expect there to be examples of species that are *behind the curve* in various ways - eg an eye slightly *less* well-developed than you might otherwise encounter.
You mean, like an eye where the retina was put in backward, with the nerves in front of it blocking some of the light, then exiting through a hole in the back corner? Like the kind that are looking back at you every morning when you wake up and look in the mirror?
You can always use redundancy to your advantage. When burning your files to DVD, copy about 3GB into a folder, then make PAR2 files to fill it out to 4GB. Oh, and keep your individual files relatively small - any files over 100MB or so should probably be split into smaller chunks. That way if a small error in the TOC makes an entire file inaccessible, you haven't lost too much data for PAR2 to recover.
What you are looking at with this system is a slower initial acceleration, and then power being applied every meter (perhaps in increasing amounts) via a maglev system (one or more rails). So the time taken to cross each 1m second becomes shorter and shorter, but the actual speed increase (in terms of pressure) stays the same.
Well, let's say you're at the last meter of the tube, and you're going 10999m/s. Over the last meter of the tube, you increase the velocity to 11000m/s. Delta-v is 1m/s, time is (roughly) 1m divided by 10999.5m/s or 0.000090913s. So acceleration is about 10999.5m/s^2, or 1122G. For a 100kg human payload (well, former human, after 1122G), you need 12.1GW at this point of the launch, and of course very few useful payloads will survive this acceleration. This is an even worse scenario than constant acceleration at 561G like an earlier poster calculated.
Back To The Future fans might note that a 10kg payload will require 1.21GW.
But just because your physics don't work out is no reason to poo-poo the idea. Let's figure out the real numbers involved and see if we can make it usable. Let's suppose we want to build a launch tube long enough to accelerate at a constant 5G and reach 11km/s. This will take 224 seconds. At an average velocity of 5.5km/s, we need a tube 1232km long. A 100kg payload will need a constant 27MW power source, but since the acceleration is only needed for four minutes, the energy used is only about 1700kWh. At Alabama Power's rates, this would only cost $117. So now our only problem:) is constructing a 1232km launch tube and keeping it evacuated, right?
Yes, there IS free digital TV over the air here in the US. The problem is, everyone tore their old antennas down during the '80s and '90s when they got cable and/or satellite TV. And unless you are very geographically fortunate, you have to have a huge roof antenna to pick up ATSC broadcasts.
Another problem is that only the major networks (ABC, NBC, CBS, Fox, PBS, maybe WB and UPN) are available over-the-air, and Americans are now used to having hundreds of channels to choose from. The only way to get Nickelodeon, Disney, MTV, and such is cable or satellite. And since every cable and satellite system uses different tuner technology....
Let's just say sometimes it seems like it would be nice to move to Europe - it sounds like you all think these things through a lot better.
Incidentally, I'm quite sure that the 2.1 billion or whatever number of "Christians" includes me, since I was raised Catholic and am a member of the local Catholic Church. But I don't believe in the literal truth of the Biblical creation story at all.
until I see musicians starving on the streets, I'm not giving any more money to a business full of crooks.
There ARE musicians starving on the streets. Of course, they aren't going to benefit from the business full of crooks anyway. In fact, the demise of the RIAA might help some of the starving musicians out, by giving them a level playing field.
Why pay $17.90 for software to do something that can already be done for free by burning to CD and ripping? Besides, he might be using a Mac, and tunebite appears to be Windows-only.
If you buy music for an iPod, you can never back it up off the iPod- and if anything should happen to your iPod, well that's just too bad for you. Why do so many people buy iPods? It just seems like a waste of money.
First of all, the RIAA is not Congress, nor are they a law enforcement agency. So, just because they tell you something is illegal doesn't make it so. In fact the Audio Home Recording Act of 1992 says the following:
No action may be brought under this title alleging infringement of copyright based on the manufacture, importation, or distribution of a digital audio recording device, a digital audio recording medium, an analog recording device, or an analog recording medium, or based on the noncommercial use by a consumer of such a device or medium for making digital musical recordings or analog musical recordings.
Second, you apparently have no clue how the iPod or iTunes works. When you buy music through the iTunes Music Store, it is downloaded to your computer as an.m4p file, which can be backed up as easily as a.txt file, although only an authorized computer can play it. The file is then copied to the iPod. You can even retrieve the file from the iPod, although iTunes itself won't do it. Furthermore, even if you don't buy music from the iTunes Music Store, you can still play any.mp3 or.m4a file - whether downloaded from legal or illegal sources, ripped from your own CDs, or recorded into your computer from LP, 45, 78, cassette, eight-track, reel-to-reel, or Edison wax cylinder, if you so desire.
If I burn a DVD of some home movies and put it in a standard DVD player connected to an HDCP-compliant TV, will it not play at 720p (or some other upscaled resolution) because it doesn't have CSS?
In the ideal world, HDCP is supposed to only disable the high-resolution output for protected media. I somehow doubt that it's going to work that way in the real world - the DVD players will more likely refuse to output anything above 480p on ANY media unless the TV supports HDCP.
What I'm saying is, in what situation would HDCP prevent me from doing activity $FOO? It sounds like if you have an HDCP dvd player and an HDCP tv, it'll play anything you throw at it....
The idea of HDCP isn't to prevent you from playing a copied DVD. It's to prevent you from using the HDMI output of the player to make a digital copy. If the device attached to that output hasn't been approved by the HDCP Nazis, then it's "No HD for you!". Oh, and you won't be able to get HD off the analog outputs either, just in case someone tries to build an HD recorder with analog component video input.
Product recall would be a joke. I get the feeling that Samsung might concede, carry out the recall, but only a trickle of players will ever be returned.
What, you wouldn't return yours if you got a notice like this:
*** RECALL NOTICE ***
It has come to our attention that your Samsung DVD Player suffers from a defect. This defect results in the failure of your DVD Player to properly prevent you from copying protected DVD videos, playing DVD videos from other regions, and fast-forward through copyright notices. Please return it to Samsung at your earliest convenience so that we may replace it with a model that correctly enforces your obedience to the copyright cartels.
Thank You for your compliance, Your comrades at Samsung
*** END RECALL NOTICE ***
Of course, you only get this notice in the event you're foolish enough to send in the warranty registration card - and in that case, you might be dumb enough to send it back.
Taking another's content and selling it for profit is pirating.
No, boarding a ship and stealing its cargo on the open sea is piracy. Doubly so if you make the ship's captain walk the plank. ARGH!
What you're talking about is COPYRIGHT INFRINGEMENT. No matter how many times the ??AA tell you it's theft or piracy, it is NOT. They have not been deprived of property; they have been deprived of potential revenue. If we let them define the language of the debate, then the terrorists have already won. Or something.
Can someone who's been using Macs longer than I give any reason why you would need to store metadata in a.zip file anyway? Shouldn't content that requires the metadata to be intact be transferred in a disk image?
All that may be true... but does it all need to be on redundant hard disks and backed up off-site? If you have a HD failure, you can rip your CDs again. Yes, it's time consuming. But you only need to rip the discs as you get the hankering to listen to the music anyway. Or, you could take the money you would spend on RAID controllers and hard disks, and stick it in a savings account. Then, when your HD fails, you can afford to send the CDs to a ripping service.
As far as your Seinfeld (or porn) goes, 430GB will fit on a spindle of DVDs that costs $30, and gives you the advantage of portability and playability on your TV (if you burn as DVD-Video, or have a DivX capable player), which is where I'd rather watch Seinfeld (or porn) anyway.
I keep multiple backups of the irreplacable stuff - digital photos, financial data, correspondence, tax information. Ripped CDs are already backed up. So are ripped DVDs. I back up my iTMS purchases, but I can re-download from Emusic.com, so I consider that as already backed up offsite.
I've downsized from a 500GB LVM on a Linux server to a single 250GB drive in a MiniStack under a Mac Mini by making some wise decisions about what needs to be always available on the hard drive and what doesn't. My new mantra when it comes to technology is "Simplify", and in the process I've converted a room with three computer desks into a playroom for my daughter. Watching her play with Thomas the Tank Engine is a lot more enjoyable than swapping hard drives in and out and installing Debian updates!
Damn, I wish I had mod points. This comment should be required reading for any Congressfolk or Senators debating copyright legislation, or any Judge or Justice hearing a case on copyright matters.
TO PROMOTE THE USEFUL ARTS AND SCIENCES. If the stuff is locked up and controlled by one entity forever, it is not useful. Now, most of an entire century of American history and culture is copyright protected. It wasn't meant to be this way. All the novels, music, television shows, and so forth produced up until 1985 should be public domain by now.
Of course, if the best our culture can produce is exemplified by Britney Spears and "Friends", maybe it's best if historians of the future don't see it.
Maybe one possible scenario is that a digital tax will be added to all machines that can play digitized music/games/etc. in order to make up for the lost revenue.
Great idea! And then, let's add a tax on automobiles to make up for the lost revenue for buggy whip makers.
Sorry, it's not the government's job to take MY money to support companies whose business models have been obsoleted by the progress of technology.
Actually, it's now $10/month for 40 songs. That's 4 songs for the dollar, you OWN them, and no DRM. Playable on ANY computer with ANY operating system or ANY portable device, burnable to CD with NO restrictions. It's a better deal than iTunes, if you like the music they have to offer.
Hmmm, just thought about something. Surely Sony isn't going to release the PS3 with HDMI-only? Wait 'til Mom comes home from Wal*Mart with little Johnnie's new toy and finds that they can't hook it up to their TV. They'll have to have component outputs on it. If they artificially restrict Blu-Ray movies to SD quality on the component output, those of us who know about it should make a point to explain a few things about DRM and copy protection to our less-savvy neighbors. Those with early component-only HD monitors and a new supposedly HD movie format who find that they aren't seeing these movies in HD might actually get up in arms when they find they've been fleeced.
Slashdot Mirror
I'll do power consumption, then someone else can build off that to do hear dissipation.
:)
Published consumption for the ST3500641AS (500GB) is 7.4W idle, 12.6W seek. Let's assume that at any given time, only 0.1% of the drives (24,590) are seeking. That should be enough throughput for your application.
The seeking drives are using 309.8kW, the remaining drives are using 181.7MW. Assuming an electric rate of $0.09/kWh, I'm coming up with a monthly electric bill of $11,799,721.49.
As a useful side-effect of this calculation, I can tell you that adding this drive to your computer will add about $0.65/month to your power bill at a 50% duty cycle.
Keep in mind that none of these figures are taking power supply inefficieny into consideration!
Well, space is not really a thing. Energy and matter cannot get out of the black hole*, but space is neither energy nor matter. Because the black hole is moving through space**, then there are constantly areas of space of which you could say, "A moment ago that space was inside the event horizon, now it is not. How could it get out?" Well, it didn't get out, the event horizon's position just changed. Similarly, if it acquires angular momentum, it changes shape. As Hawking radiation escapes, it changes size (gets smaller).
* - Hawking radiation, yeah, but it doesn't really escape from 'inside' the event horizon.
** - Special relativity means the laws of physics have to work in all frames of reference, and even a black hole that you might think of as stationary is actually moving in every possible frame of reference but one.
You mean, like an eye where the retina was put in backward, with the nerves in front of it blocking some of the light, then exiting through a hole in the back corner? Like the kind that are looking back at you every morning when you wake up and look in the mirror?
You can always use redundancy to your advantage. When burning your files to DVD, copy about 3GB into a folder, then make PAR2 files to fill it out to 4GB. Oh, and keep your individual files relatively small - any files over 100MB or so should probably be split into smaller chunks. That way if a small error in the TOC makes an entire file inaccessible, you haven't lost too much data for PAR2 to recover.
Well, let's say you're at the last meter of the tube, and you're going 10999m/s. Over the last meter of the tube, you increase the velocity to 11000m/s. Delta-v is 1m/s, time is (roughly) 1m divided by 10999.5m/s or 0.000090913s. So acceleration is about 10999.5m/s^2, or 1122G. For a 100kg human payload (well, former human, after 1122G), you need 12.1GW at this point of the launch, and of course very few useful payloads will survive this acceleration. This is an even worse scenario than constant acceleration at 561G like an earlier poster calculated.
Back To The Future fans might note that a 10kg payload will require 1.21GW.
But just because your physics don't work out is no reason to poo-poo the idea. Let's figure out the real numbers involved and see if we can make it usable. Let's suppose we want to build a launch tube long enough to accelerate at a constant 5G and reach 11km/s. This will take 224 seconds. At an average velocity of 5.5km/s, we need a tube 1232km long. A 100kg payload will need a constant 27MW power source, but since the acceleration is only needed for four minutes, the energy used is only about 1700kWh. At Alabama Power's rates, this would only cost $117. So now our only problem
Yes, there IS free digital TV over the air here in the US. The problem is, everyone tore their old antennas down during the '80s and '90s when they got cable and/or satellite TV. And unless you are very geographically fortunate, you have to have a huge roof antenna to pick up ATSC broadcasts.
Another problem is that only the major networks (ABC, NBC, CBS, Fox, PBS, maybe WB and UPN) are available over-the-air, and Americans are now used to having hundreds of channels to choose from. The only way to get Nickelodeon, Disney, MTV, and such is cable or satellite. And since every cable and satellite system uses different tuner technology....
Let's just say sometimes it seems like it would be nice to move to Europe - it sounds like you all think these things through a lot better.
You mis-spelled "cretins".
Incidentally, I'm quite sure that the 2.1 billion or whatever number of "Christians" includes me, since I was raised Catholic and am a member of the local Catholic Church. But I don't believe in the literal truth of the Biblical creation story at all.
Don't you mean found in an alley? That would be pretty weird if he was found in an ally; that is, inside a friend.
There ARE musicians starving on the streets. Of course, they aren't going to benefit from the business full of crooks anyway. In fact, the demise of the RIAA might help some of the starving musicians out, by giving them a level playing field.
Why pay $17.90 for software to do something that can already be done for free by burning to CD and ripping? Besides, he might be using a Mac, and tunebite appears to be Windows-only.
First of all, the RIAA is not Congress, nor are they a law enforcement agency. So, just because they tell you something is illegal doesn't make it so. In fact the Audio Home Recording Act of 1992 says the following:
Second, you apparently have no clue how the iPod or iTunes works. When you buy music through the iTunes Music Store, it is downloaded to your computer as an
Your plan would be much better if one of the steps was "profit".
If I burn a DVD of some home movies and put it in a standard DVD player connected to an HDCP-compliant TV, will it not play at 720p (or some other upscaled resolution) because it doesn't have CSS?
In the ideal world, HDCP is supposed to only disable the high-resolution output for protected media. I somehow doubt that it's going to work that way in the real world - the DVD players will more likely refuse to output anything above 480p on ANY media unless the TV supports HDCP.
What I'm saying is, in what situation would HDCP prevent me from doing activity $FOO? It sounds like if you have an HDCP dvd player and an HDCP tv, it'll play anything you throw at it....
The idea of HDCP isn't to prevent you from playing a copied DVD. It's to prevent you from using the HDMI output of the player to make a digital copy. If the device attached to that output hasn't been approved by the HDCP Nazis, then it's "No HD for you!". Oh, and you won't be able to get HD off the analog outputs either, just in case someone tries to build an HD recorder with analog component video input.
Product recall would be a joke. I get the feeling that Samsung might concede, carry out the recall, but only a trickle of players will ever be returned.
What, you wouldn't return yours if you got a notice like this:
*** RECALL NOTICE ***
It has come to our attention that your Samsung DVD Player suffers from a defect. This defect results in the failure of your DVD Player to properly prevent you from copying protected DVD videos, playing DVD videos from other regions, and fast-forward through copyright notices. Please return it to Samsung at your earliest convenience so that we may replace it with a model that correctly enforces your obedience to the copyright cartels.
Thank You for your compliance,
Your comrades at Samsung
*** END RECALL NOTICE ***
Of course, you only get this notice in the event you're foolish enough to send in the warranty registration card - and in that case, you might be dumb enough to send it back.
Say what you will about how wonderful democracy is and how backward British monarchy was, but at least King Richard WENT to the Crusades.
Yes, I'm talking to YOU, "King" George W Bush the Chicken-Hearted. Why aren't YOU in Iraq?
Taking another's content and selling it for profit is pirating.
No, boarding a ship and stealing its cargo on the open sea is piracy. Doubly so if you make the ship's captain walk the plank. ARGH!
What you're talking about is COPYRIGHT INFRINGEMENT. No matter how many times the ??AA tell you it's theft or piracy, it is NOT. They have not been deprived of property; they have been deprived of potential revenue. If we let them define the language of the debate, then the terrorists have already won. Or something.
Can someone who's been using Macs longer than I give any reason why you would need to store metadata in a .zip file anyway? Shouldn't content that requires the metadata to be intact be transferred in a disk image?
You forgot one!
Employee E -- "Well, I got Outlook... I guess I can email my resume to another company!"
Has anyone tried to compute a Crackpot Index on the Time Cube guy?
All that may be true... but does it all need to be on redundant hard disks and backed up off-site? If you have a HD failure, you can rip your CDs again. Yes, it's time consuming. But you only need to rip the discs as you get the hankering to listen to the music anyway. Or, you could take the money you would spend on RAID controllers and hard disks, and stick it in a savings account. Then, when your HD fails, you can afford to send the CDs to a ripping service.
As far as your Seinfeld (or porn) goes, 430GB will fit on a spindle of DVDs that costs $30, and gives you the advantage of portability and playability on your TV (if you burn as DVD-Video, or have a DivX capable player), which is where I'd rather watch Seinfeld (or porn) anyway.
I keep multiple backups of the irreplacable stuff - digital photos, financial data, correspondence, tax information. Ripped CDs are already backed up. So are ripped DVDs. I back up my iTMS purchases, but I can re-download from Emusic.com, so I consider that as already backed up offsite.
I've downsized from a 500GB LVM on a Linux server to a single 250GB drive in a MiniStack under a Mac Mini by making some wise decisions about what needs to be always available on the hard drive and what doesn't. My new mantra when it comes to technology is "Simplify", and in the process I've converted a room with three computer desks into a playroom for my daughter. Watching her play with Thomas the Tank Engine is a lot more enjoyable than swapping hard drives in and out and installing Debian updates!
Damn, I wish I had mod points. This comment should be required reading for any Congressfolk or Senators debating copyright legislation, or any Judge or Justice hearing a case on copyright matters.
TO PROMOTE THE USEFUL ARTS AND SCIENCES. If the stuff is locked up and controlled by one entity forever, it is not useful. Now, most of an entire century of American history and culture is copyright protected. It wasn't meant to be this way. All the novels, music, television shows, and so forth produced up until 1985 should be public domain by now.
Of course, if the best our culture can produce is exemplified by Britney Spears and "Friends", maybe it's best if historians of the future don't see it.
Maybe one possible scenario is that a digital tax will be added to all machines that can play digitized music/games/etc. in order to make up for the lost revenue.
Great idea! And then, let's add a tax on automobiles to make up for the lost revenue for buggy whip makers.
Sorry, it's not the government's job to take MY money to support companies whose business models have been obsoleted by the progress of technology.
Actually, it's now $10/month for 40 songs. That's 4 songs for the dollar, you OWN them, and no DRM. Playable on ANY computer with ANY operating system or ANY portable device, burnable to CD with NO restrictions. It's a better deal than iTunes, if you like the music they have to offer.
Hmmm, just thought about something. Surely Sony isn't going to release the PS3 with HDMI-only? Wait 'til Mom comes home from Wal*Mart with little Johnnie's new toy and finds that they can't hook it up to their TV. They'll have to have component outputs on it. If they artificially restrict Blu-Ray movies to SD quality on the component output, those of us who know about it should make a point to explain a few things about DRM and copy protection to our less-savvy neighbors. Those with early component-only HD monitors and a new supposedly HD movie format who find that they aren't seeing these movies in HD might actually get up in arms when they find they've been fleeced.