That's because rsync is trying to do the compressing itself, obviously redundantly. You should have a "dont compress =" directive in rsyncd.conf for the appropriate files, to avoid this problem.
In other words, it's not a problem for a properly configured rsync site.
If you'd looked closer you'd notice there isn't actually a mirror *in* Antarctica... just a mirror who has volunteered to handle Antarctica traffic. I doubt it adds significant to their bandwidth consumption:)
Most treaties the U.S. signed with the Soviet Union are still in force as agreements with Russia. The Russians are really ticked off that the U.S. are apparently completely disregarding the ABM Treaty, and have threatened to freeze any further arms reduction talks (e.g. START III).
The key pieces of technology missing were, IIRC, lasers which can retune themselves very quickly, and purely optical amplifiers (got to eliminate the electronics totally).
All-optical amplifiers have been a reality for almost a decade, and are probably a given in newly installed long-haul fibers. In fact, the Nortel article talks about optical switches (most likely electrooptical), which is a much more complex technology. For a long time it has been necessary to convert the signals to electric in order to route them, which gets annoying really fast when you're somewhere in the terabit region. Optical switches will actually allow packets to be routed without convert the signals to electric first.
Actually, if you talk to a memory designer, they will talk about bits, not bytes. The sizes of RAM parts are all in bits; same when packaged onto a DIMM (which may be 8Mx64 for a 64 megabyte DIMM). However, the computer it is put into will be sold as having 64 megabyte of RAM.
It is really only computer (as opposed to electronics/optonics) people who uses bytes. At the hardware level, after all, everything is bits, after all.
On transmission systems it is even more confusing, since low-level framing protocols (below the software-visible level) are often bit- rather than byte-oriented; on RS-232, for example, it typically takes 10 bit intervals to transmit an 8-bit byte. Therefore, an RS232 serial port talking at 57600 bps can transmit 5760 bytes per second, not 7200 as you might think.
It gets worse. Certain modulation schemes transmit multiple bits per state transition. If you have a 32-point QAM constellation, for example, you will transmit 5 bits per state transition (5 bps per baud.) This gets awkward really quickly if you in addition have to worry about 8 bits per byte!
Yes, that is true, and that is pretty much what happens. The most common intermediate format is PostScript; most of the magicfilter stuff convert to PostScript or PPM and from there to the printer-native format, usually using GhostScript.
Using magicfilter, to print, say, a JPEG on a DeskJet 550C you do the following sets of conversions:
The main difference between the magic filter stuff and CUPS is that CUPS supports things like *job options*, and the magic filters are still only 1 level "deep". CUPS can run multiple filters to get from file type A to B.
... as can magicfilter; in fact, this is one of the points of magicfilter. Claiming it's only "one level deep" is certainly incorrect.
Part of the charter of the metrification people was time: 1 day = 10 "hours" (deciday) = 10x100 "minutes" (milliday) = 10x100x100 "seconds" (?). Some places in France started erecting metric clocks, but before it caught on, the Revolution had become less radical and it was forgotten. Too bad... by now, the constant 86400 is embedded into far too many other units, since part of SI is to reuse the preferred units.
Too bad. I'd rather see 68.559 as the time rather than 16:27:15, or as some people would say, 4:27:15 pm.
GNU is *not* the OS, except in Stallman's fantasies. If anything, "RedHat" or "Debian" or "SuSE" is the OS. Just as Stallman's team has quite happily integrated other people's works into "the GNU system" (TeX, X11, BSD, you name it), so has the various Linux teams integrated other Open Source software into our respective systems. We just have chosen to use the "Linux" name as a common term for operating systems built around the Linux kernel.
No kidding. In fact, Linus is usually pretty good about getting back to journalists (they are at least around here pretty darn much all the time), but he wants something in writing (email or fax) first. Voice mail and phone calls are just an incredible pain.
Something worth pointing is that Russians used to launch *reactors* into space. Unshielded. Into Low Earth Orbit -- i.e. decaying orbits. These will come down. Although the reactors were supposed to be relaunched into parking orbit before the satellites came down, at least two -- Kosmos 953 and Kosmos 1402 -- came down with the reactor still in place. Although the Russians ended up paying for decontaminating a big chunk of the Canadian tundra, we haven't seen any billions of cancer cases. Neither have we seen billions of deaths from nuclear tests in the 1950's, or from X-ray exams. The decay of the ozone layer is a much bigger public health hazard than any of these -- the radiation that the big nuclear reactor in the sky we call the Sun puts out puts all human-made sources to shame. It is critical we maintain the natural radiation shield we already have.
Unfortunately many (but not all) environmentalists seem to focus on the things that aren't significant even if things go wrong -- or they cause people to build coal power plants which will cause environmental damage instead of nuclear plants. I have seen claimed that the environmental movements are trying to block the safe storage of nuclear waste because it would remove one of the arguments against using nuclear power (this was in Sweden, in particular.)
One important thing to know: if the number of stock holders in a corporation exceeds some magic amount, then (apparently) the company automatically becomes public. This basically robs the company of any IPO opportunity, which is why companies simply cannot afford to let this happen.
It might have, if the U.S. hadn't signed the Outer Space Treaty. All the signatories of the Outer Space Treaty disavows claiming territory outsite Earth's atmosphere. The Antarctic Treaty provide a similar situation for Antarctica; in the latter case several countries had already made territorial claims which have been superceded by the Treaty.
True, but you need a fourth satellite if you also want to determine the time, so you know where the constellation is. If you know the time of transmission with high enough accuracy, you don't need that.
I suspect of all the people that lived this century, Adolf Hitler probably is indeed the one single person who has had the most dramatic impact on this century. The impact of his evil Reich has lasted well into the present day; remember, too, that it was only 10 years ago that Germany itself was reunified and the formal occupation of Germany ended. World War II set the stage for the Cold War, the nuclear arms race, the United Nations, and the establishment of the USA as the economic superpower par excellence. Sixty-five million people perished during that war, and God alone knows how many were wounded, lost their homes, families or friends.
I find it interesting that the article on Hitler was written by Elie Weishel, who describes his experience in Auchwitz in the book "Night". This is hardly someone who can be considered an admirer! Hitler's impact on history is undeniable, although much of that history has to be painted in the darkest colors humanity has ever seen. Let us not forget history, lest we let it repeat itself. This part of history must never, ever, be repeated.
The Mandelbrot set is most certainly self-similar; if you delve into just about any random point on its boundary, you will find a miniature copy of the Mandelbrot set itself.
Uh, could you give such an example? It's probably worth a Turing Award at the very least.
In case you didn't know, P ?= NP is probably the biggest unproven assumption in theoretical computer science today. Although it is widely believed to be true, noone has succeeded in proving it.
Furthermore, your definition for class NP is wrong (your definition instead most closely applies to a different class often called RP); NP is most easily described in the following way: if you are given a solution, you can verify that it is indeed a true solution in polynomial time.
In addition, your definition for polynomial time is wrong! Polynomial is time n^k where n is the size of the problem, and k is a constant; notk^n which rather would be exponential time (class EXP). For exponential time, it has been proven that EXP = NEXP; i.e. that nondeterminism buys you nothing when you have exponential time to play with (because you can simply enumerate all the possibilities and try them all.)
Now, public-key cryptography (but not traditional cryptography) relies on the assumption that P != UP, where UP is the class of problems solvable in polynomial time on something called a unambiguous nondeterministic Turing machine; UP is a subset of NP and a superset of P. The assumption P != UP is actually stronger than P != NP.
It is widely believed that P != UP != NP, but neither has been proven.
I talked to someone once about cold fusion, and he had a relatively interesting explanation for the occational positive result. It is widely known that palladium, and some other metals, can contain within their crystal lattice an extraordinary amount of hydrogen (including deuterium). So far, nothing new. He *also* claimed that when there is a crack in the metal, electrostatic charges in the tens of kV can built up on the opposing edges of the crack. If so, that would be sufficient to ionize some hydrogen atoms, and accelerate them at higher speeds than the Coulomb barrier of hydrogen nuclei. The result would be a *very small* amount of fusion. If this indeed is the cause for the occational positive result, cold fusion is definitely doomed to remain a scientific curiosity.
I find it amusing that the article claims to have found traces of He-4. However, most cold fusion experiments I have read of are pure H-2 (deuterium), which would result in He-3 and n. Admittely, He-3 can in turn fuse with H-2 to form He-4 and H-1, but that would be a secondary reaction, and it would still not be a neutron-free reaction. There are a few aneutronic fusion reactions known -- mostly involving various isotopes of Li -- but even fewer which wouldn't result in parasitic neutronics (He-3 + H-2 for example; at conditions suitable for this reaction you will also have H-2 + H-2 -> He-3 + n).
Slashdot Mirror
That's because rsync is trying to do the compressing itself, obviously redundantly. You should have a "dont compress =" directive in rsyncd.conf for the appropriate files, to avoid this problem.
In other words, it's not a problem for a properly configured rsync site.
If you'd looked closer you'd notice there isn't actually a mirror *in* Antarctica... just a mirror who has volunteered to handle Antarctica traffic. I doubt it adds significant to their bandwidth consumption :)
Most treaties the U.S. signed with the Soviet Union are still in force as agreements with Russia. The Russians are really ticked off that the U.S. are apparently completely disregarding the ABM Treaty, and have threatened to freeze any further arms reduction talks (e.g. START III).
There is one. It's called rsync. It is the only sensible way to operate a mirror network these days.
I have used planets from the Foundation series on my home network: terminus, trantor, korell, tazenda, kalgan, santanni and siwenna. So far.
All-optical amplifiers have been a reality for almost a decade, and are probably a given in newly installed long-haul fibers. In fact, the Nortel article talks about optical switches (most likely electrooptical), which is a much more complex technology. For a long time it has been necessary to convert the signals to electric in order to route them, which gets annoying really fast when you're somewhere in the terabit region. Optical switches will actually allow packets to be routed without convert the signals to electric first.
Actually, if you talk to a memory designer, they will talk about bits, not bytes. The sizes of RAM parts are all in bits; same when packaged onto a DIMM (which may be 8Mx64 for a 64 megabyte DIMM). However, the computer it is put into will be sold as having 64 megabyte of RAM.
It is really only computer (as opposed to electronics/optonics) people who uses bytes. At the hardware level, after all, everything is bits, after all.
On transmission systems it is even more confusing, since low-level framing protocols (below the software-visible level) are often bit- rather than byte-oriented; on RS-232, for example, it typically takes 10 bit intervals to transmit an 8-bit byte. Therefore, an RS232 serial port talking at 57600 bps can transmit 5760 bytes per second, not 7200 as you might think.
It gets worse. Certain modulation schemes transmit multiple bits per state transition. If you have a 32-point QAM constellation, for example, you will transmit 5 bits per state transition (5 bps per baud.) This gets awkward really quickly if you in addition have to worry about 8 bits per byte!
We should make T-shirts:
First they ignore you
Then they laugh at you
Then they fight you -- YOU ARE HERE
Then you win
If your cdwriter is IDE you need to enable the SCSI emulation module (and use the SCSI CD-ROM driver.)
Yes, that is true, and that is pretty much what happens. The most common intermediate format is PostScript; most of the magicfilter stuff convert to PostScript or PPM and from there to the printer-native format, usually using GhostScript.
Using magicfilter, to print, say, a JPEG on a DeskJet 550C you do the following sets of conversions:
JPEG -> PPM (using djpeg)
PPM -> PostScript (using ppmtops)
PostScript -> dj550c (using GhostScript)
Magicfilter do these automatically by looking at the output for each conversion stage.
Part of the charter of the metrification people was time: 1 day = 10 "hours" (deciday) = 10x100 "minutes" (milliday) = 10x100x100 "seconds" (?). Some places in France started erecting metric clocks, but before it caught on, the Revolution had become less radical and it was forgotten. Too bad... by now, the constant 86400 is embedded into far too many other units, since part of SI is to reuse the preferred units.
Too bad. I'd rather see 68.559 as the time rather than 16:27:15, or as some people would say, 4:27:15 pm.
GNU is *not* the OS, except in Stallman's fantasies. If anything, "RedHat" or "Debian" or "SuSE" is the OS. Just as Stallman's team has quite happily integrated other people's works into "the GNU system" (TeX, X11, BSD, you name it), so has the various Linux teams integrated other Open Source software into our respective systems. We just have chosen to use the "Linux" name as a common term for operating systems built around the Linux kernel.
No kidding. In fact, Linus is usually pretty good about getting back to journalists (they are at least around here pretty darn much all the time), but he wants something in writing (email or fax) first. Voice mail and phone calls are just an incredible pain.
-hpa
Unfortunately many (but not all) environmentalists seem to focus on the things that aren't significant even if things go wrong -- or they cause people to build coal power plants which will cause environmental damage instead of nuclear plants. I have seen claimed that the environmental movements are trying to block the safe storage of nuclear waste because it would remove one of the arguments against using nuclear power (this was in Sweden, in particular.)
No, this is definitely not true. As far as I know, E*TRADE charge standard commission ($20.03 with SEC tax) on IPO sales.
One important thing to know: if the number of stock holders in a corporation exceeds some magic amount, then (apparently) the company automatically becomes public. This basically robs the company of any IPO opportunity, which is why companies simply cannot afford to let this happen.
Where did you get the idea that Unix runs telnet in the kernel?! No Unix has ever done that.
It might have, if the U.S. hadn't signed the Outer Space Treaty. All the signatories of the Outer Space Treaty disavows claiming territory outsite Earth's atmosphere. The Antarctic Treaty provide a similar situation for Antarctica; in the latter case several countries had already made territorial claims which have been superceded by the Treaty.
True, but you need a fourth satellite if you also want to determine the time, so you know where the constellation is. If you know the time of transmission with high enough accuracy, you don't need that.
I suspect of all the people that lived this century, Adolf Hitler probably is indeed the one single person who has had the most dramatic impact on this century. The impact of his evil Reich has lasted well into the present day; remember, too, that it was only 10 years ago that Germany itself was reunified and the formal occupation of Germany ended. World War II set the stage for the Cold War, the nuclear arms race, the United Nations, and the establishment of the USA as the economic superpower par excellence. Sixty-five million people perished during that war, and God alone knows how many were wounded, lost their homes, families or friends.
I find it interesting that the article on Hitler was written by Elie Weishel, who describes his experience in Auchwitz in the book "Night". This is hardly someone who can be considered an admirer! Hitler's impact on history is undeniable, although much of that history has to be painted in the darkest colors humanity has ever seen. Let us not forget history, lest we let it repeat itself. This part of history must never, ever, be repeated.
Really not surprising... the transmitters in cell phones put out a lot of heat!
The Mandelbrot set is most certainly self-similar; if you delve into just about any random point on its boundary, you will find a miniature copy of the Mandelbrot set itself.
In case you didn't know, P ?= NP is probably the biggest unproven assumption in theoretical computer science today. Although it is widely believed to be true, noone has succeeded in proving it.
Furthermore, your definition for class NP is wrong (your definition instead most closely applies to a different class often called RP); NP is most easily described in the following way: if you are given a solution, you can verify that it is indeed a true solution in polynomial time.
In addition, your definition for polynomial time is wrong! Polynomial is time n^k where n is the size of the problem, and k is a constant; not k^n which rather would be exponential time (class EXP). For exponential time, it has been proven that EXP = NEXP; i.e. that nondeterminism buys you nothing when you have exponential time to play with (because you can simply enumerate all the possibilities and try them all.)
Now, public-key cryptography (but not traditional cryptography) relies on the assumption that P != UP, where UP is the class of problems solvable in polynomial time on something called a unambiguous nondeterministic Turing machine; UP is a subset of NP and a superset of P. The assumption P != UP is actually stronger than P != NP.
It is widely believed that P != UP != NP, but neither has been proven.
Reference: Papadimitriou, Christos H.: Computational Complexity, Addison-Wesley, ISBN 0-201-53082-1. Excellent book.
I talked to someone once about cold fusion, and he had a relatively interesting explanation for the occational positive result. It is widely known that palladium, and some other metals, can contain within their crystal lattice an extraordinary amount of hydrogen (including deuterium). So far, nothing new. He *also* claimed that when there is a crack in the metal, electrostatic charges in the tens of kV can built up on the opposing edges of the crack. If so, that would be sufficient to ionize some hydrogen atoms, and accelerate them at higher speeds than the Coulomb barrier of hydrogen nuclei. The result would be a *very small* amount of fusion. If this indeed is the cause for the occational positive result, cold fusion is definitely doomed to remain a scientific curiosity.
I find it amusing that the article claims to have found traces of He-4. However, most cold fusion experiments I have read of are pure H-2 (deuterium), which would result in He-3 and n. Admittely, He-3 can in turn fuse with H-2 to form He-4 and H-1, but that would be a secondary reaction, and it would still not be a neutron-free reaction. There are a few aneutronic fusion reactions known -- mostly involving various isotopes of Li -- but even fewer which wouldn't result in parasitic neutronics (He-3 + H-2 for example; at conditions suitable for this reaction you will also have H-2 + H-2 -> He-3 + n).