Well, some did anyway. For example, in the early 1820's, when dealing with solving partial differential equations arising from heat conduction, Joseph Fourier came up with the foundations of Fourier Analysis, which has become an essential tool in a great deal of mathematics, science, and engineering. Where would we be today if he could just plug it into MATLAB and get an approximate numerical solution?
Also, although I do not really know how he did it, I belive that Euler had calculated e to 7+ decimal places in the mid 1700s.
I thought that one of the biggest reasons that the BSDs had not incorporated the publicly available journaling filesytems (SGI XFS and IBM JFS, and to a lesser extend ext3 and reiserfs) was that all the code was GPL, not BSD. I may be revealing my gross ignorance of kernel programming, but it was my impression that having GPLed filesystem code in a BSD-based system would not really be possible. How do the developers plan to get around this?
A physicist walks into a classroom and sees that the trashcan is on fire in the corner. How does he put it out? He douses it with water, then publishes 10 papers on methods for gathering water from disparate sources, dousing burning trashcans on desks with water, and all the intermediate techniqes involved. A mathematician walks in and sees the same thing. How does he put out the fire? He simply takes the fire extinguisher from off the wall and puts out the fire.
The same physicsist walks into the next classroom and sees a trashcan on a desk on fire. How does he put it out? He douses it with water, then publishes 20 papers on putting out fires in trashcans on desks and the effects of altitude on fire intensity, etc. The mathematician encounters the same thing. He looks puzzlingly at the trashcan for 15 minutes, then picks it up and puts it onto the floor. "AHA!" he says. "Now I know how to put out the fire"
As a warmer, we get nukes and the mighty computer.
Actually, nuclear weapons are a result of the other great physical theoretical advance of the twentieth century, relativity (E = mc^2 and all that). Sorry to be picky, but let's give credit where credit is due.
is it just me or did they completely skirt the question of why Java was chosen to begin with? Sure, he says that there are no speed concerns, but does not say why they chose Java as opposed to (choose your favorite language). I mean, there are the typical generic reasons for choosing Java, but I would be interested to know why they particularly chose Java. There are only a handful of large-scale "professional" Java-developed programs, so I think it would be interesting to hear about it. Can anyone shed some insight?
not quite. it's the surface of the sphere (or torus) that we call a 2-manifold. when we say sphere or torus, we really mean the surfaces of these things. the surface of a bowl or cup (without handle) that has some thickness is homeomorphic to a sphere since you can just push in the sphere to get the bowl/cup. and actually, a manifold is not some thingy in n-dimensional space, but rather some thingy that locally looks like n-dimensional space (in some more precise way). the surface of a sphere or a torus locally looks like a plane (so these are 2-manifolds), while a cone does not look like a plane everywhere--namely at its vertex, and also where its base disk intersects its sides, it is not smooth like n-space. thus a cone is not a manifold.
this actually has nothing to do with "density," which is a concept from physics more than mathematics. the poincare says that any 3-manifold (think some "solid" embedded in 4-dimensional space - contrast with a 2-manifold like the surface of a sphere or a torus, or the surface any polyhedron) that has no holes, or other undesirable properties, is "homeomorphic" to the set of points in 4-dimensional space that are unit distance from the origin (aka the 3-sphere). homeomorphic roughly means that one space can be continuously deformed into another in a way that is continuously invertible. (taking a square to a circle is homeomorphism, shrinking a square to a point is not because it can't be undone). as you can see, density really has nothing to do it.
MacWorld without Apple just wouldn't be as "insanely great."
Seriously, IDG should have negotiated with Apple in advance (if they didn't in fact do that) because MacWorld without Apple is pointless.
The biggest press that the show gets is the keynote (Steve Job's keynote, that is). I can't think of anything that would even come close to replacing this.
Whatever Apple's reasons for not participating, as long as not participating in MacWorld doesn't mean not putting out new products, all will be well...
But broadband is a chicken - egg problem. You won't get people signing up until they see a reason, and you won't get compelling reasons until more people have signed up.
WHAT?! Not only is this completely contrary to the conclusion of the study, it is contrary to common sense. The biggest problem with broadband right now is cost. There is no chicken and egg problem. When the cost becomes reasonable, there is compelling reason to upgrade.
This article seems to have been sparked by Yahoo's consideration of mysql, but it fails to mention that Yahoo has run FreeBSD from the beginning. Talk about the "viability of open source," Yahoo is one of the most popular and highly trafficed web sites on the 'net and always has been.
The standardization on dual processor machines across the PowerMac line is truly amazing. I have been putting off getting a computer because I haven't really seen any interesting new offerings for a while. I have been watching the PowerMac line from afar, but have been increasingly confused as the flat panel iMac becomes more and more attractive and the differences between the two lines dwindle (the only real distinction as of yesterday seemed to be expandability). The use of dual G4 processors is the first major push I have felt toward going out and buying a computer immediately--especially at their low price. I felt similarly when the TiBook and the flat panel iMac revolutionized their respective product lines, but never have I felt as compelled as I do now to buy an Apple machine. This is a terrific step for Apple and despite the surprising number of nay-sayers, this should make Apple hardware so much more attractive. There is a huge coolness-factor with running dual processors, especially with an OS that is fully multithreaded and SMP-enabled. I can't wait until I can work up the courage to spend the money on one of these babies.
The article says that the XServe takes advantage of the cheapness of open source software by eliminating the cost of an OS. This is actually not true. An unlimited user liscence version of Mac OS X Server costs $1000 (the 10-user liscence costs $500). The XServe comes with absolutely no choice of OS. The $1000 is included in the price of the XServe. While this is much more reasonable than Windows Server pricing (currently MS's website lists $1200 for a 25-user win2k server liscence and $4000 for a 25-user win2k advanced server liscence -- unlimited liscencing wasn't even mentioned). I think XServe is a great product. The price very easily justifies the ridiculous ease (and even pleasantness!) it puts into server administration, but it should not be misrepresented as coming with a "free" operating system.
SoftUpdates is not a journaling system. It is just some speed and stability improvemnts on FFS. You still have to fsck after a crash, but the data integrity softupdates provides is good. The problem (as I understand it) with the Linux journaling filesystems (ext3, xfs, reiserfs, jfs) is that the code is GPL, which cannot be included in BSD kernels (their code is all BSD-style liscenced...duh). From what I've seen and heard, softupdates is very nice, but that doesn't stop people from wanting genuine journaling filesystems for the allure or purely technical reasons (although I belive that the technical gaps between journaling filesystems and softupdates is growing smaller all the time). I certainly must say that the prospect of running SGI's legendary XFS on BSD is very attractive (I've heard that the plug can be pulled in the middle of a cp, then rebooted and the machine will continue without even noticing).
Technically, BSD doesn't need a journaling fs because of softupdates, which is a great suite of improvements on FFS.
As far as i know, the PPC had a serial number in it before the Pentium III (which was the first Intel chip to have it). I have a Pentium III running with the serial turned off, so i am not terribly worried. If you can't trust your bios, what can you trust?:-)
sure he defends caldera's community participation, but was it not caldera that did not release the source to its installer originally until everyone cried out at their hypocrisy? i am all for gnu/linux in the enterprise and wider use in general, but consolidation of control over any software product is in general bad, especially given the money-driven quality of this undertaking.
i hope that the competition between RH and UL not only makes for much better software, but also that they pressure each other into having better community relations. i mean, if one of these companies ends of just totally pushing off from linux's core audience, then it will probably fail (and rightfully so).
well, actually, it is only zero bits if you know that the answer is "42" or "not 42" and you know that the answer is correct. this is kind of obvious because you can just define zero to be the case where 42 is correct. if you have a general question whose answer can be any n-dimensional string of unicode characters, you will have 16 bits x n of information, i believe (certainly you will have more than two). even if you want to index the numbers up to 42 (say up to 64 because that's the next binary number) you will need 6 bits of information since 64 is 2^6. you get the idea...
i heard somewhere that what pushes anakin over the edge is obi-wan. anakin becomes fed up with being "underappreciated" (as he views it) and challenges his master to a duel. obi-wan knocks him into a volcano and only anakin's pure rage (and the strength it gives his dark side powers) saves him from dying, although his skin is damaged (hence the darth vader get-up). maybe i am mistaken...
wow, that's really cool. i totally missed that (which is quite understandable since i don't know dutch), but i am impressed. i guess the other sith-types have more obvious names like maul and [in]sidious. i am kind of interested to see how anakin will get the "vader" name...unfortunately i am not so well versed in the star wars universe outside of the released movies.
i am tingling. one year seems like way too much time. i cannot wait. star wars tomorrow, done with exams, new matrix teaser, plus the above comment that new effects are supposed to be even more amazing that bullet time. i am still blown away every time i watch that insanity on the roof between neo and the agent, although it was recently brought to my attention (in light of the reported spiderman inconsistencies) that when the camera is zooming around neo, all the weapons, bodies, and debris are gone from the roof, but they reappear afterwards. i guess nobody is perfect, but i certainly did not notice it when i saw it the first time in the theaters. anyway, i cannot wait for this new matrix to usher in another new era of computer effects in movies. whether or not the matrix originated these effects it was the first i know of to use them throughout the film and to do them so damned well. it was just insane, and if the next two are as good as they say, i might just get in line tomorrow for tix...
i like user choice. i would have picked my last name, or my first intial at last name, but instead i got my initials followed by three increment digits. it would be quite nice to be able to choose and just giving choice based on first come-first serve. in a university with over 40,000 people, i would still get first initial + middle initial + last name, although we do have a first-come-first serve email aliasing system, so for example the first smith to register gets smith@, there are also firstname.lastname@, firstinitial.lastname@, etc. so the first john thomas smith can get mail at smith, j.smith, john.smith, j.t.smith, john.t.smith, and probably many otherthings. i have decided that i will now put firstinitial.middleinitial.lastname on my resume b/c it looks nicer and easier. the even more annoying things is that people who work as computer admins get whatevertheywant@, although they disabled that as of last year, so although i just got hired, i still have to settle for my initials and random digits as my login, although i can now use a much nicer email alias. oh well...it would probably be hard to transition with so many users in place already. i will bring it up to my boss, though...
While I agree that such a configuration would not rival ASCI White, if he is in fact right that this would cost 1/20 of ASCI White, you could buy a whole lot of these things and network them with gigabit enet (or i hear that there will be support for networking over firewire in OSX soon...and speed increases in firewire).
Obviously this machine was not meant to compete with ASCI white, but for companies who would want apple for renderfarms, data processing, data storage, etc. It looks as if Apple is going after the digital video effects market or other people who will have lots of mac workstations (eg scientists) but also have data warehousing and mass data processing needs. this is a very nice first offering in the rack server market!
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Well, some did anyway. For example, in the early 1820's, when dealing with solving partial differential equations arising from heat conduction, Joseph Fourier came up with the foundations of Fourier Analysis, which has become an essential tool in a great deal of mathematics, science, and engineering. Where would we be today if he could just plug it into MATLAB and get an approximate numerical solution?
Also, although I do not really know how he did it, I belive that Euler had calculated e to 7+ decimal places in the mid 1700s.
I thought that one of the biggest reasons that the BSDs had not incorporated the publicly available journaling filesytems (SGI XFS and IBM JFS, and to a lesser extend ext3 and reiserfs) was that all the code was GPL, not BSD. I may be revealing my gross ignorance of kernel programming, but it was my impression that having GPLed filesystem code in a BSD-based system would not really be possible. How do the developers plan to get around this?
A physicist walks into a classroom and sees that the trashcan is on fire in the corner.
How does he put it out?
He douses it with water, then publishes 10 papers on methods for gathering water from disparate sources, dousing burning trashcans on desks with water, and all the intermediate techniqes involved.
A mathematician walks in and sees the same thing.
How does he put out the fire?
He simply takes the fire extinguisher from off the wall and puts out the fire.
The same physicsist walks into the next classroom and sees a trashcan on a desk on fire.
How does he put it out?
He douses it with water, then publishes 20 papers on putting out fires in trashcans on desks and the effects of altitude on fire intensity, etc.
The mathematician encounters the same thing.
He looks puzzlingly at the trashcan for 15 minutes, then picks it up and puts it onto the floor. "AHA!" he says. "Now I know how to put out the fire"
is it just me or did they completely skirt the question of why Java was chosen to begin with? Sure, he says that there are no speed concerns, but does not say why they chose Java as opposed to (choose your favorite language). I mean, there are the typical generic reasons for choosing Java, but I would be interested to know why they particularly chose Java. There are only a handful of large-scale "professional" Java-developed programs, so I think it would be interesting to hear about it. Can anyone shed some insight?
not quite. it's the surface of the sphere (or torus) that we call a 2-manifold. when we say sphere or torus, we really mean the surfaces of these things. the surface of a bowl or cup (without handle) that has some thickness is homeomorphic to a sphere since you can just push in the sphere to get the bowl/cup. and actually, a manifold is not some thingy in n-dimensional space, but rather some thingy that locally looks like n-dimensional space (in some more precise way). the surface of a sphere or a torus locally looks like a plane (so these are 2-manifolds), while a cone does not look like a plane everywhere--namely at its vertex, and also where its base disk intersects its sides, it is not smooth like n-space. thus a cone is not a manifold.
this actually has nothing to do with "density," which is a concept from physics more than mathematics. the poincare says that any 3-manifold (think some "solid" embedded in 4-dimensional space - contrast with a 2-manifold like the surface of a sphere or a torus, or the surface any polyhedron) that has no holes, or other undesirable properties, is "homeomorphic" to the set of points in 4-dimensional space that are unit distance from the origin (aka the 3-sphere). homeomorphic roughly means that one space can be continuously deformed into another in a way that is continuously invertible. (taking a square to a circle is homeomorphism, shrinking a square to a point is not because it can't be undone). as you can see, density really has nothing to do it.
MacWorld without Apple just wouldn't be as "insanely great."
Seriously, IDG should have negotiated with Apple in advance (if they didn't in fact do that) because MacWorld without Apple is pointless.
The biggest press that the show gets is the keynote (Steve Job's keynote, that is). I can't think of anything that would even come close to replacing this.
Whatever Apple's reasons for not participating, as long as not participating in MacWorld doesn't mean not putting out new products, all will be well...
incorrect. the explosion comes from the oxidation of sodium alone. no hydrogen is necessary, it just happens to be present.
WHAT?! Not only is this completely contrary to the conclusion of the study, it is contrary to common sense. The biggest problem with broadband right now is cost. There is no chicken and egg problem. When the cost becomes reasonable, there is compelling reason to upgrade.
actually, both the geek and the "limousine liberal" overshoot by quite a bit. but it's a stupid article to begin with.
This article seems to have been sparked by Yahoo's consideration of mysql, but it fails to mention that Yahoo has run FreeBSD from the beginning. Talk about the "viability of open source," Yahoo is one of the most popular and highly trafficed web sites on the 'net and always has been.
The standardization on dual processor machines across the PowerMac line is truly amazing. I have been putting off getting a computer because I haven't really seen any interesting new offerings for a while. I have been watching the PowerMac line from afar, but have been increasingly confused as the flat panel iMac becomes more and more attractive and the differences between the two lines dwindle (the only real distinction as of yesterday seemed to be expandability). The use of dual G4 processors is the first major push I have felt toward going out and buying a computer immediately--especially at their low price. I felt similarly when the TiBook and the flat panel iMac revolutionized their respective product lines, but never have I felt as compelled as I do now to buy an Apple machine. This is a terrific step for Apple and despite the surprising number of nay-sayers, this should make Apple hardware so much more attractive. There is a huge coolness-factor with running dual processors, especially with an OS that is fully multithreaded and SMP-enabled. I can't wait until I can work up the courage to spend the money on one of these babies.
The article says that the XServe takes advantage of the cheapness of open source software by eliminating the cost of an OS. This is actually not true. An unlimited user liscence version of Mac OS X Server costs $1000 (the 10-user liscence costs $500). The XServe comes with absolutely no choice of OS. The $1000 is included in the price of the XServe. While this is much more reasonable than Windows Server pricing (currently MS's website lists $1200 for a 25-user win2k server liscence and $4000 for a 25-user win2k advanced server liscence -- unlimited liscencing wasn't even mentioned). I think XServe is a great product. The price very easily justifies the ridiculous ease (and even pleasantness!) it puts into server administration, but it should not be misrepresented as coming with a "free" operating system.
SoftUpdates is not a journaling system. It is just some speed and stability improvemnts on FFS. You still have to fsck after a crash, but the data integrity softupdates provides is good. The problem (as I understand it) with the Linux journaling filesystems (ext3, xfs, reiserfs, jfs) is that the code is GPL, which cannot be included in BSD kernels (their code is all BSD-style liscenced...duh). From what I've seen and heard, softupdates is very nice, but that doesn't stop people from wanting genuine journaling filesystems for the allure or purely technical reasons (although I belive that the technical gaps between journaling filesystems and softupdates is growing smaller all the time). I certainly must say that the prospect of running SGI's legendary XFS on BSD is very attractive (I've heard that the plug can be pulled in the middle of a cp, then rebooted and the machine will continue without even noticing).
Technically, BSD doesn't need a journaling fs because of softupdates, which is a great suite of improvements on FFS.
Stupid me, I read in flight *ROBOT* and I was wondering when the AF was going to start producing R2 units...
i obviously need more sleep.
As far as i know, the PPC had a serial number in it before the Pentium III (which was the first Intel chip to have it). I have a Pentium III running with the serial turned off, so i am not terribly worried. If you can't trust your bios, what can you trust? :-)
sure he defends caldera's community participation, but was it not caldera that did not release the source to its installer originally until everyone cried out at their hypocrisy? i am all for gnu/linux in the enterprise and wider use in general, but consolidation of control over any software product is in general bad, especially given the money-driven quality of this undertaking.
i hope that the competition between RH and UL not only makes for much better software, but also that they pressure each other into having better community relations. i mean, if one of these companies ends of just totally pushing off from linux's core audience, then it will probably fail (and rightfully so).
well, actually, it is only zero bits if you know that the answer is "42" or "not 42" and you know that the answer is correct. this is kind of obvious because you can just define zero to be the case where 42 is correct. if you have a general question whose answer can be any n-dimensional string of unicode characters, you will have 16 bits x n of information, i believe (certainly you will have more than two). even if you want to index the numbers up to 42 (say up to 64 because that's the next binary number) you will need 6 bits of information since 64 is 2^6. you get the idea...
maybe the guy from the goatse.cx picture would even show up in person...
i heard somewhere that what pushes anakin over the edge is obi-wan. anakin becomes fed up with being "underappreciated" (as he views it) and challenges his master to a duel. obi-wan knocks him into a volcano and only anakin's pure rage (and the strength it gives his dark side powers) saves him from dying, although his skin is damaged (hence the darth vader get-up). maybe i am mistaken...
check here and here for details.
wow, that's really cool. i totally missed that (which is quite understandable since i don't know dutch), but i am impressed. i guess the other sith-types have more obvious names like maul and [in]sidious. i am kind of interested to see how anakin will get the "vader" name...unfortunately i am not so well versed in the star wars universe outside of the released movies.
i am tingling. one year seems like way too much time. i cannot wait. star wars tomorrow, done with exams, new matrix teaser, plus the above comment that new effects are supposed to be even more amazing that bullet time. i am still blown away every time i watch that insanity on the roof between neo and the agent, although it was recently brought to my attention (in light of the reported spiderman inconsistencies) that when the camera is zooming around neo, all the weapons, bodies, and debris are gone from the roof, but they reappear afterwards. i guess nobody is perfect, but i certainly did not notice it when i saw it the first time in the theaters. anyway, i cannot wait for this new matrix to usher in another new era of computer effects in movies. whether or not the matrix originated these effects it was the first i know of to use them throughout the film and to do them so damned well. it was just insane, and if the next two are as good as they say, i might just get in line tomorrow for tix...
i like user choice. i would have picked my last name, or my first intial at last name, but instead i got my initials followed by three increment digits. it would be quite nice to be able to choose and just giving choice based on first come-first serve. in a university with over 40,000 people, i would still get first initial + middle initial + last name, although we do have a first-come-first serve email aliasing system, so for example the first smith to register gets smith@, there are also firstname.lastname@, firstinitial.lastname@, etc. so the first john thomas smith can get mail at smith, j.smith, john.smith, j.t.smith, john.t.smith, and probably many otherthings. i have decided that i will now put firstinitial.middleinitial.lastname on my resume b/c it looks nicer and easier. the even more annoying things is that people who work as computer admins get whatevertheywant@, although they disabled that as of last year, so although i just got hired, i still have to settle for my initials and random digits as my login, although i can now use a much nicer email alias. oh well...it would probably be hard to transition with so many users in place already. i will bring it up to my boss, though...
While I agree that such a configuration would not rival ASCI White, if he is in fact right that this would cost 1/20 of ASCI White, you could buy a whole lot of these things and network them with gigabit enet (or i hear that there will be support for networking over firewire in OSX soon...and speed increases in firewire).
Obviously this machine was not meant to compete with ASCI white, but for companies who would want apple for renderfarms, data processing, data storage, etc. It looks as if Apple is going after the digital video effects market or other people who will have lots of mac workstations (eg scientists) but also have data warehousing and mass data processing needs. this is a very nice first offering in the rack server market!
see these guys and this article for further applications of this new server.