BTW, I had every class you mentioned before I left highschool (except topology)
My goodness, you had complex analysis in high school?! That's normally a graduate math course (I took it as a topics course (we didn't really cover it very well) my junior year of college). Partial DiffEq too? That's a graduate level course as well (which I have yet to take, although I learned the basics in p-chem). My high school only went up through Calculus (I've heard of some high schools offering a watered down version of linear algebra), and I had a freind (he took calculus as a freshman) who went over to the college for his math classes, and probably got as far as abstract algebra. I envy you for your high school education. I could have completely skiped my undergrad (at least the math major) with those classes.
Not to mention how many times I've recieved e-mail documents containg Word or Powerpoint presentations that StarOffice couldn't convert very nicely
I tell all of the people I work with that if they send me an attachment at all, I won't read it (I just recently figured out how to unmime attachments, but it's a pain). I get my mail sent to my system, and I will promptly ignore anything that spits out junk to my console. Every time I get some attached word file I tell the sender to send it again in ASCI. I'm not even going to acknowledge any proprietary formats like that. I get by just fine in my ASCI world, and figure that anybody who needs to make their presentation of data full of bells and whistles is trying to cover up a lack of content. Back on topic, I don't need or want any microsoft software on my computer. Give me vi, TeX, metapost, and fortran, and I'll gladly turn down anything else.
I don't even trust anything on normal RAM. Just because the information is supposed to be lost when power is turned off doesn't mean that it can't be recovered. If I was doing some big cracking, and the FBI started pounding on my door, I wouldn't just power off the computer thinking that would clear the memory. I would dd the ram with/dev/zero (I'm not really sure how this would happen without killing the dd program, so physically distroying the RAM would be the best bet).
I doubt if linux or windows will exist in 20 years. I bet there will be something completely different. 20 years is a long time, and anything can happen.
If we want kids to start soaking up QM, may I suggest starting with calculus? Perhaps algebra and trig before that? Don't forget about diffeq, multivariate (partial diffeq too), linear algebra, abstract algebra (just the group theory would be fine), perhaps complex analysis and topology, but that's kind of pushing it. Don't forget to master fortran while you're at it (sorry C lovers, but fortran is still better for this stuff). Then, you can start learning classical physics, theoretical physics, and modern physics. Now you have the background to learn quantum mechanics and understand it without getting lost after 6 chapters. Does it still look like fun? I hope not, because I'm taking QM next semester and I like small class sizes...
Or give him really good eyesight so that only a small amount of light need be disturbed. Better yet, give him eyesight in the IR, that way he would only block heat, which sounds like a reasonable thing.
AHHHH! 1 is not a prime number! Shame on you for not believing in definitions!
Definition 3.1 An integer p > 1 is called a prime number or simply prime, if its only positive divisors are 1 and p. An integer greater than 1 that is not prime is termed composite
(Taken from Burton's Elementary Number Theory, Fourth Edition)
They actually used ethanol. It was methylated by the manufacturer to thwart people from drinking it. Normally they actually don't denature it, but most people are not willing to take the risk. I've heard many stories from my chem profs about good uses of lab alcohol. Alcohol doesn't disolve plastic, and I actually see no reason why they had to use a plasic bag. There would normally be a risk of fire, but there was so much CO2 around that there would be no oxygen available. I would like to see a test of total submersion (with a more disposable computer).
Also, CO2 can disolve in alcohol. This provides a homogeneose cold liquid. I wouldn't go so far as to say that CO2 is not hazardous; solid CO2 has a temperature less than -78C, and can cause frost bite upon contact with skin. Also, CO2 is lighter than air, so sinks to the bottom of the floor (after it vaporizes), displacing the air that was down there. If the environment dies not have enough circulation, a person could pass out because of lack of oxygen, then end up on the floor where there is even less oxygen. BTW, water can be brought well below 25F by adding tabble salt (NH4NO3 works better). Also, antifreeze does not use normal alcohol, rather C2H4(OH)2, which has significantly different properties (let's not give anyone ideas about drinking antifreeze to get drunk).
Re:yeah, they do these things to steal from you...
on
Coming Soon From Intel
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· Score: 1
Why not go with the 500MHz, and spend that extra money on getting a nice oak desk to go with the computer? There are a lot of better things to do with money than blow on CPU cycles destined for SETI.
I was bored one day, and wanted to know the what kind of chip would be best to buy. I went to pricewatch, and looked up the best price for each clockspeed (for athelons and PIIIs). I then plotted this data. Looks kind of exponectial. Has anyone made a law for price per clock cycle? If not, I claim the following rule (Smaby's law): The Clock Speed of a CPU is Realated to the Log of the Money Spent on it.
That is completely unproven, and should be taken with a grain of salt:-)
I believe even for games the bottleneck is at the video card (assuming we're not talking about your 266MHz machine). My poor alpha shipped to me with a rather slow IDE disk drive. I tried upgrading the RAM, and that helped up to a certain point, but when I finaly bit the bullet and gave myself SCSI3, with a 10k RPM hard drive (only 4.5GB, but I can keep my mp3s on my IDE drive), I noticed a real improvement. I've been using this box for two years, and never upgraded the CPU. I rarely see it go to saturation as it is (unless I'm rendering pov files). I think I've finally got the think to the point where there is no large bottelneck. Try buying a Dell that can claim the same (spend $2k for a system with the fasted CPU and get 64MB RAM and a 5400rpm HD). Why don't desktops come with SCSI? It didn't cost all that much for me, and would much rather deal with SCSI-IDs than master/slave headaches.
My main box (my first and still my fastest) is an alpha running linux. I have waited forever for netscape to run on it, and even now it's just a port from Digital Unix (okay, True64, whatever), and it crashes randomly (like twice an hour). Take a look at the unix OS's netscape has binaries for. That's got to be alot of work, and it still leaves out people (like me). Wouldn't it be easier just to release the source code and lose the headache? Oh, wait, then people would get rid of the "my netscape" button, and other built in bookmarks. I bet AOL makes a bunch of money on the advertisments displayed on the top of thier program. If they released the source, those banners could and would be removed.
I bet Micro$oft had See-Sharp in mind because it sounds classy (hey, you're looking sharp today). I, however, think that See-Pound makes much more sence because one is likely to pound at thier computer when the programs crash, or better yet, while waiting for the bloat to load/run. I know I absolutly despise java and don't like c++ because they are not as fast as strait c. I supose that c++ should really be See-Cross-Cross because one must pray to the computer gods that the programs don't crash, while c is just See, as in "See? That wasn't so bad now, was it?"
I wonder if you could innocently return it saying that it crashed and won't come back up. Blame microsoft for having a corruptable OS, and demand your money back. With any luck, they won't check things out and see that have a linux kernel is where the OS should be...
I believe such a device does exist, and is used on people exposed to radiation (most radiation is absorbed by the first solid it comes into contact with, be it your skin or those nifty metalic suits). I learned this from watching MacGuyver...
Re:What we truly need is Linux(tm) in a Lego(tm)
on
Linux In A Box
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· Score: 1
Isn't this what SGI is doing with thier new supercomputers? We just had an article on that a couple days ago.
If you are using hydrogen for fusion, you don't need very much, and can actually collect enough from the `vacuum' of space. The faster you go, the more you can collect. I think the retarding force due to `air resistance' in space equals the propulsive force that can be obtained from the hydrogen at around 0.25*c. This kind of puts a limit on how fast a space ship can conventionally go. I forget where I read that, and I may not remember exactly, but the idea is the same.
In one of my physics classes in college, the professor cleared the memory of everybody's calculators before taking the test. This was not good for those of us who had aquired years worth of programs (coded while sitting through boring lectures), and since I didn't know anyone else with a TI82 (it was old, but I liked it more that the newer ones), so couldn't upload my programs anywhere.
Conversly, when I took DiffEq, I convinced the professor to let me bring in my laptop and use mathematica on the test. I think I did rather well on that test...
Slashdot Mirror
BTW, I had every class you mentioned before I left highschool (except topology)
My goodness, you had complex analysis in high school?! That's normally a graduate math course (I took it as a topics course (we didn't really cover it very well) my junior year of college). Partial DiffEq too? That's a graduate level course as well (which I have yet to take, although I learned the basics in p-chem). My high school only went up through Calculus (I've heard of some high schools offering a watered down version of linear algebra), and I had a freind (he took calculus as a freshman) who went over to the college for his math classes, and probably got as far as abstract algebra. I envy you for your high school education. I could have completely skiped my undergrad (at least the math major) with those classes.
Not to mention how many times I've recieved e-mail documents containg Word or Powerpoint presentations that StarOffice couldn't convert very nicely
I tell all of the people I work with that if they send me an attachment at all, I won't read it (I just recently figured out how to unmime attachments, but it's a pain). I get my mail sent to my system, and I will promptly ignore anything that spits out junk to my console. Every time I get some attached word file I tell the sender to send it again in ASCI. I'm not even going to acknowledge any proprietary formats like that. I get by just fine in my ASCI world, and figure that anybody who needs to make their presentation of data full of bells and whistles is trying to cover up a lack of content. Back on topic, I don't need or want any microsoft software on my computer. Give me vi, TeX, metapost, and fortran, and I'll gladly turn down anything else.
Wait a second, what about outlook express complete with VBS support? Are they going to take pitr's idea seriously? Oh no!!!
post-mortem debugging session on your RAM
I don't even trust anything on normal RAM. Just because the information is supposed to be lost when power is turned off doesn't mean that it can't be recovered. If I was doing some big cracking, and the FBI started pounding on my door, I wouldn't just power off the computer thinking that would clear the memory. I would dd the ram with /dev/zero (I'm not really sure how this would happen without killing the dd program, so physically distroying the RAM would be the best bet).
I doubt if linux or windows will exist in 20 years. I bet there will be something completely different. 20 years is a long time, and anything can happen.
If we want kids to start soaking up QM, may I suggest starting with calculus? Perhaps algebra and trig before that? Don't forget about diffeq, multivariate (partial diffeq too), linear algebra, abstract algebra (just the group theory would be fine), perhaps complex analysis and topology, but that's kind of pushing it. Don't forget to master fortran while you're at it (sorry C lovers, but fortran is still better for this stuff). Then, you can start learning classical physics, theoretical physics, and modern physics. Now you have the background to learn quantum mechanics and understand it without getting lost after 6 chapters. Does it still look like fun? I hope not, because I'm taking QM next semester and I like small class sizes...
Or give him really good eyesight so that only a small amount of light need be disturbed. Better yet, give him eyesight in the IR, that way he would only block heat, which sounds like a reasonable thing.
AHHHH! 1 is not a prime number! Shame on you for not believing in definitions!
(Taken from Burton's Elementary Number Theory, Fourth Edition)
They're allready almost /.'ed. A link from the article would take them down for sure.
They actually used ethanol. It was methylated by the manufacturer to thwart people from drinking it. Normally they actually don't denature it, but most people are not willing to take the risk. I've heard many stories from my chem profs about good uses of lab alcohol. Alcohol doesn't disolve plastic, and I actually see no reason why they had to use a plasic bag. There would normally be a risk of fire, but there was so much CO2 around that there would be no oxygen available. I would like to see a test of total submersion (with a more disposable computer).
Also, CO2 can disolve in alcohol. This provides a homogeneose cold liquid. I wouldn't go so far as to say that CO2 is not hazardous; solid CO2 has a temperature less than -78C, and can cause frost bite upon contact with skin. Also, CO2 is lighter than air, so sinks to the bottom of the floor (after it vaporizes), displacing the air that was down there. If the environment dies not have enough circulation, a person could pass out because of lack of oxygen, then end up on the floor where there is even less oxygen. BTW, water can be brought well below 25F by adding tabble salt (NH4NO3 works better). Also, antifreeze does not use normal alcohol, rather C2H4(OH)2, which has significantly different properties (let's not give anyone ideas about drinking antifreeze to get drunk).
Why not go with the 500MHz, and spend that extra money on getting a nice oak desk to go with the computer? There are a lot of better things to do with money than blow on CPU cycles destined for SETI.
I was bored one day, and wanted to know the what kind of chip would be best to buy. I went to pricewatch, and looked up the best price for each clockspeed (for athelons and PIIIs). I then plotted this data. Looks kind of exponectial. Has anyone made a law for price per clock cycle? If not, I claim the following rule (Smaby's law): :-)
The Clock Speed of a CPU is Realated to the Log of the Money Spent on it.
That is completely unproven, and should be taken with a grain of salt
I believe even for games the bottleneck is at the video card (assuming we're not talking about your 266MHz machine). My poor alpha shipped to me with a rather slow IDE disk drive. I tried upgrading the RAM, and that helped up to a certain point, but when I finaly bit the bullet and gave myself SCSI3, with a 10k RPM hard drive (only 4.5GB, but I can keep my mp3s on my IDE drive), I noticed a real improvement. I've been using this box for two years, and never upgraded the CPU. I rarely see it go to saturation as it is (unless I'm rendering pov files). I think I've finally got the think to the point where there is no large bottelneck. Try buying a Dell that can claim the same (spend $2k for a system with the fasted CPU and get 64MB RAM and a 5400rpm HD). Why don't desktops come with SCSI? It didn't cost all that much for me, and would much rather deal with SCSI-IDs than master/slave headaches.
**begin sarcasm**
What do you mean, redhat is linux
**end sarcasm
across AOL's servers - which gives them the legal right to read my message
I'm not so sure about this. I know that a good sysadmin will never read people's email. I don't know if this is the law, or just ethics.
It looks like they're even using it on www.aol.com:
$ lynx -head http://www.aol.com
Server: NaviServer/2.0 AOLserver/2.3.3
My main box (my first and still my fastest) is an alpha running linux. I have waited forever for netscape to run on it, and even now it's just a port from Digital Unix (okay, True64, whatever), and it crashes randomly (like twice an hour). Take a look at the unix OS's netscape has binaries for. That's got to be alot of work, and it still leaves out people (like me). Wouldn't it be easier just to release the source code and lose the headache? Oh, wait, then people would get rid of the "my netscape" button, and other built in bookmarks. I bet AOL makes a bunch of money on the advertisments displayed on the top of thier program. If they released the source, those banners could and would be removed.
I bet Micro$oft had See-Sharp in mind because it sounds classy (hey, you're looking sharp today). I, however, think that See-Pound makes much more sence because one is likely to pound at thier computer when the programs crash, or better yet, while waiting for the bloat to load/run. I know I absolutly despise java and don't like c++ because they are not as fast as strait c. I supose that c++ should really be See-Cross-Cross because one must pray to the computer gods that the programs don't crash, while c is just See, as in "See? That wasn't so bad now, was it?"
I wonder if you could innocently return it saying that it crashed and won't come back up. Blame microsoft for having a corruptable OS, and demand your money back. With any luck, they won't check things out and see that have a linux kernel is where the OS should be...
I believe such a device does exist, and is used on people exposed to radiation (most radiation is absorbed by the first solid it comes into contact with, be it your skin or those nifty metalic suits). I learned this from watching MacGuyver...
Isn't this what SGI is doing with thier new supercomputers? We just had an article on that a couple days ago.
If you are using hydrogen for fusion, you don't need very much, and can actually collect enough from the `vacuum' of space. The faster you go, the more you can collect. I think the retarding force due to `air resistance' in space equals the propulsive force that can be obtained from the hydrogen at around 0.25*c. This kind of puts a limit on how fast a space ship can conventionally go. I forget where I read that, and I may not remember exactly, but the idea is the same.
Ever use K as a unit of energy? That's just plain wierd. (it comes about when one takes plank's constant to be 1).
In one of my physics classes in college, the professor cleared the memory of everybody's calculators before taking the test. This was not good for those of us who had aquired years worth of programs (coded while sitting through boring lectures), and since I didn't know anyone else with a TI82 (it was old, but I liked it more that the newer ones), so couldn't upload my programs anywhere.
Conversly, when I took DiffEq, I convinced the professor to let me bring in my laptop and use mathematica on the test. I think I did rather well on that test...