Your warning is a good one, but generally you do feel "warm" if you step in front of an active feed horn, before any damage is done.
You are very correct about the blindness though, looking directly into a hot horn can blind you before you knew what happened. Your eyes resonate right around the microwave range and absorbe them readily.
How do they avoid the meltdown problem that tcp over tcp has?
I thought that was inherent in any implementation of TCP over TCP. I guess they could do ACK spoofing like satellites do, but that's lame, and means it probably won't ever be compatible with anything but Windows.
From the page: "Imagine what happens when, in this situation, the base connection starts losing packets. The lower layer TCP queues up a retransmission and increases its timeouts. Since the connection is blocked for this amount of time, the upper layer (i.e. payload) TCP won't get a timely ACK, and will also queue a retransmission. Because the timeout is still less than the lower layer timeout, the upper layer will queue up more retransmissions faster than the lower layer can process them. This makes the upper layer connection stall very quickly and every retransmission just adds to the problem - an internal meltdown effect. "
If you have more than one or two computers on your network, NetBEUI really sucks. It's broadcast only, so that nifty switch you bought just became a hub. I'd really only recommend it if you have a network using a crossover cable, or something very simple like that. To a Slashdotter, "home network" often means 5 to 10 or more nodes.
One or two computers with NetBEUI enabled can turn a $100,000 cisco catalyst switch into a bandwidth choked hub also, totally negating that huge bankplane bandwidth. I'm afraid that some people will misinterpert your message and go trying to use NetBEUI on a real LAN of some sort. That would be a big mistake.
The region of the world being devastated by AIDS may contain any number of alleles which our decsendents may need in the population in order to face the challenges of the future, whatever they may be.
You talk about evolution, then you talk about supressing evolution. Well which is it?
The people who happen to have the genes to prevent AIDS will survive, everyone else will die. End result: Everyone left is immune to AIDS.
Speaking of disk-to-disk, Maxtor's MaxLineII that will be out in a couple months is aimed at the mass archive/backup market.
250 and 320GB ATA hard disks, Rated the same MTTF as SCSI, 3year warantee, $400 MSRP each for the 320GB. 10TB for under $20,000.
For 1 to 10 TB this is a cheap and good solution, combined with rsync/rdiff incremental backup smearshots onto either a Linux NAS with 3ware serial ATA or direct attached storage in the form of something from ACNC or an AXUS ATA-SCSI box.
With the direct attached storage, you could scale it up past 10TB, 4.4TB per 16 disk RAID5 with hot spare, string those together on as many SCSI channels as you need. Each AXUS 16 disk box costs about $6000, 16 of the 320GB disks costs $6400, so 4.4TB will cost about $12,000. Use software RAID0 to tie them into larger volumes if you need to.
Anyway, the potential is there for low maintenence, very cheap, and automated backups using this roll your own solution.
CMY can make a real black, inability to make a good black is not the main reason that the K seperation is added. Screening a good black is difficult due to the non-linear way you see color, however. See below.
BTW - I highly recommend the Color FAQ as a good primer.
25. Why does offset printing use black ink in addition to CMY?
Printing black by overlaying cyan, yellow and magenta ink in offset printing has three major problems. First, coloured ink is expensive. Replacing coloured ink by black ink - which is primarily carbon - makes economic sense. Second, printing three ink layers causes the printed paper to become quite wet. If three inks can be replaced by one, the ink will dry more quickly, the press can be run faster, and the job will be less expensive. Third, if black is printed by combining three inks, and mechanical tolerances cause the three inks to be printed slightly out of register, then black edges will suffer coloured tinges. Vision is most demanding of spatial detail in black and white areas. Printing black with a single ink minimizes the visibility of registration errors.
Other printing processes may or may not be subject to similar constraints.
Assuming that RC5-64 could today be completed in two years if started over (not unreasonable), that's 512 years for RC5-72, assuming participation stays the same, and computing power does not increase. I don't feel like doing all the math to get exact numbers, but even if computing power doubles every 2 years for the next decade or two, you are still looking at around 15 years. And that is assuming participation stays the same, which probably isn't likely when the goal is half a millenium in the future right now.
How quickly people forget that at one time AOL tried to "beat" the Internet.
Re:OpenMosix, really Distributed Shared Memory
on
Ask Donald Becker
·
· Score: 1
Thanks for your early reply.:)
Mosix is almost completely unrelated to DSM.
Just a clarification, OpenMosix is the pure GPL fork of Mosix (which wasn't all clearly GPL) that plans to eventually implement DSM. I don't know if the Mosix project has such plans or not.
I'd like to forward your thoughts to the openmosix-devel mailing list. I invite you to join the list, subscription is open to the public.
If DSM is indeed a waste of time on top of OM, maybe development time could be better spent elsewhere.
Yesh, excellent.../me does the evil Mr Burns fingers.
When you are sitting in that meeting tomorrow, you are doomed to have that song stuck in your head!
Re:Broadcast w/ Verification for SHM updates
on
Ask Donald Becker
·
· Score: 1
When I said small, I meant small, I'm definitely no kernel hacker. That said, you system sounds similar to other replication projects, such as the one that postgresql-r is built from.:)
As someone who has made small contributions to the OpenMosix project, while I'm amazed at what clustering can do, I'm dissapointed at the same time at what it cannot.
Distributed shared memory is a big hurdle facing the OpenMosix project over the next couple years. Right now any program that allocates shared memory cannot migrate. What do you think of projects like OpenMosix? Do you think we will reach a point where parallel programming is a thing of the past, discarded in favor of tools like OpenMosix that require no special programming considerations except implementing clean threading?
Well, radar doesn't have to get an echo to track something, since they have walls/trees/other fixed things mapped, they could track you based on the lack of echo in a certain area. You also do reflect some microwave energy, your body resonates best in the VHF range, not the microwave range. Think of it like the SWR on an antenna.
As I've posted elsewhere, I don't see this as particularly a big deal in any case. The images will likely not be able to identify a person very well, most likely only human shaped blobs. Government run video cameras in public places scare me a lot more.
Slashdot Mirror
Your warning is a good one, but generally you do feel "warm" if you step in front of an active feed horn, before any damage is done.
You are very correct about the blindness though, looking directly into a hot horn can blind you before you knew what happened. Your eyes resonate right around the microwave range and absorbe them readily.
Wait. Is it irony?
:)
You are a rocking maniac
You are a singing hyena
You are a rock star in Jesus' name
You can really rock Saddam Hussein's ass
Alanis Morissette
Alanis Morissette
Alanis Morissette
Alanis Morissette
Taco Bell, make a run for the border!
Yeah, that kinda irony.
How do they avoid the meltdown problem that tcp over tcp has?
I thought that was inherent in any implementation of TCP over TCP. I guess they could do ACK spoofing like satellites do, but that's lame, and means it probably won't ever be compatible with anything but Windows.
From the page:
"Imagine what happens when, in this situation, the base connection starts losing packets. The lower layer TCP queues up a retransmission and increases its timeouts. Since the connection is blocked for this amount of time, the upper layer (i.e. payload) TCP won't get a timely ACK, and will also queue a retransmission. Because the timeout is still less than the lower layer timeout, the upper layer will queue up more retransmissions faster than the lower layer can process them. This makes the upper layer connection stall very quickly and every retransmission just adds to the problem - an internal meltdown effect. "
If you have more than one or two computers on your network, NetBEUI really sucks. It's broadcast only, so that nifty switch you bought just became a hub. I'd really only recommend it if you have a network using a crossover cable, or something very simple like that. To a Slashdotter, "home network" often means 5 to 10 or more nodes.
One or two computers with NetBEUI enabled can turn a $100,000 cisco catalyst switch into a bandwidth choked hub also, totally negating that huge bankplane bandwidth. I'm afraid that some people will misinterpert your message and go trying to use NetBEUI on a real LAN of some sort. That would be a big mistake.
The region of the world being devastated by AIDS may contain any number of alleles which our decsendents may need in the population in order to face the challenges of the future, whatever they may be.
You talk about evolution, then you talk about supressing evolution. Well which is it?
The people who happen to have the genes to prevent AIDS will survive, everyone else will die. End result: Everyone left is immune to AIDS.
and I'm an accountant at Arthur Andersen.
Wonder how many will get that.
Where as after, merely, a background check, no tests etc. needed, I can walk away with a potentially lethal weapon!! Scary!
Yeah, we definitely need to register all buyers of kitchen knives. Those things are potentially lethal!
Google does it.
As long as they have no robots.txt or Pragma: No-Cache, I don't see that they would have much case.
and is a disk to disk system
Speaking of disk-to-disk, Maxtor's MaxLineII that will be out in a couple months is aimed at the mass archive/backup market.
250 and 320GB ATA hard disks, Rated the same MTTF as SCSI, 3year warantee, $400 MSRP each for the 320GB. 10TB for under $20,000.
For 1 to 10 TB this is a cheap and good solution, combined with rsync/rdiff incremental backup smearshots onto either a Linux NAS with 3ware serial ATA or direct attached storage in the form of something from ACNC or an AXUS ATA-SCSI box.
With the direct attached storage, you could scale it up past 10TB, 4.4TB per 16 disk RAID5 with hot spare, string those together on as many SCSI channels as you need. Each AXUS 16 disk box costs about $6000, 16 of the 320GB disks costs $6400, so 4.4TB will cost about $12,000. Use software RAID0 to tie them into larger volumes if you need to.
Anyway, the potential is there for low maintenence, very cheap, and automated backups using this roll your own solution.
I can't wait until the 320GB disks come out!
Or:
Can a system of DRM be devloped that does not rely on security through obscurity at any level, or a crippling of general purpose computers?
Their answer to that is obvious to me:
Media companies will make more high quality material available for you to download if they know you can't pirate it.
CMY can make a real black, inability to make a good black is not the main reason that the K seperation is added. Screening a good black is difficult due to the non-linear way you see color, however. See below.
From the Color FAQ
BTW - I highly recommend the Color FAQ as a good primer.
25. Why does offset printing use black ink in addition to CMY?
Printing black by overlaying cyan, yellow and magenta ink in offset printing has three major problems. First, coloured ink is expensive. Replacing coloured ink by black ink - which is primarily carbon - makes economic sense. Second, printing three ink layers causes the printed paper to become quite wet. If three inks can be replaced by one, the ink will dry more quickly, the press can be run faster, and the job will be less expensive. Third, if black is printed by combining three inks, and mechanical tolerances cause the three inks to be printed slightly out of register, then black edges will suffer coloured tinges. Vision is most demanding of spatial detail in black and white areas. Printing black with a single ink minimizes the visibility of registration errors.
Other printing processes may or may not be subject to similar constraints.
RC5-72 is 256 times larger.
Assuming that RC5-64 could today be completed in two years if started over (not unreasonable), that's 512 years for RC5-72, assuming participation stays the same, and computing power does not increase. I don't feel like doing all the math to get exact numbers, but even if computing power doubles every 2 years for the next decade or two, you are still looking at around 15 years. And that is assuming participation stays the same, which probably isn't likely when the goal is half a millenium in the future right now.
RC5-72 should start within a month or so.
And finish in 20-100 years or so.
What happened to your first two girlfriends?
How quickly people forget that at one time AOL tried to "beat" the Internet.
Thanks for your early reply. :)
Mosix is almost completely unrelated to DSM.
Just a clarification, OpenMosix is the pure GPL fork of Mosix (which wasn't all clearly GPL) that plans to eventually implement DSM. I don't know if the Mosix project has such plans or not.
I'd like to forward your thoughts to the openmosix-devel mailing list. I invite you to join the list, subscription is open to the public.
If DSM is indeed a waste of time on top of OM, maybe development time could be better spent elsewhere.
Thanks for taking the time to reply.
Not everyone hates Microsoft, and I'm sure there are enough people to say, "Sure, it works for me."
Apparently not.
It's telling that they couldn't find one single person that would give a testimonial.
Have you ever thought that possibly every one of the "MS supporters" you see online are actually paid to astroturf?
At the least then we will get a comparision of the two, at best an honest comparision.
Yesh, excellent... /me does the evil Mr Burns fingers.
When you are sitting in that meeting tomorrow, you are doomed to have that song stuck in your head!
When I said small, I meant small, I'm definitely no kernel hacker. That said, you system sounds similar to other replication projects, such as the one that postgresql-r is built from. :)
Join the openmosix-devloper mailing list.
See http://openmosix.sourceforge.net/
Yeah, it did kinda suck not to be able to even finish the verse :)
I just changed my sig to that, I'm thinking it will change again soon, I don't particularly like that one, although Lambchop was one kick ass bitch.
As someone who has made small contributions to the OpenMosix project, while I'm amazed at what clustering can do, I'm dissapointed at the same time at what it cannot.
Distributed shared memory is a big hurdle facing the OpenMosix project over the next couple years. Right now any program that allocates shared memory cannot migrate. What do you think of projects like OpenMosix? Do you think we will reach a point where parallel programming is a thing of the past, discarded in favor of tools like OpenMosix that require no special programming considerations except implementing clean threading?
Well, radar doesn't have to get an echo to track something, since they have walls/trees/other fixed things mapped, they could track you based on the lack of echo in a certain area. You also do reflect some microwave energy, your body resonates best in the VHF range, not the microwave range. Think of it like the SWR on an antenna.
As I've posted elsewhere, I don't see this as particularly a big deal in any case. The images will likely not be able to identify a person very well, most likely only human shaped blobs. Government run video cameras in public places scare me a lot more.
So, they have radar data that something human shaped was in a certain place at a certain time... So what?
Government cameras in public places already invade way more than this technology ever will.