Sure, but you don't have to do it at room temperature, either. There are superconductors at Liquid Nitrogen temps. Certainly most MRI machines use Liquid Helium temperature superconductors. They, of course, cost millions of dollars, but they are still used quite frequently.
IIRC, LN costs about the same as milk (~$3/gallon). If the rate of evaporation wasn't too great, it would just be an on-going charge. Say it was 1 gallon/month, would only cost you about $36/year.
Obviously LN distribution isn't up to par with electricity, but in the "closer" term it certainly would be feasible for "industrial" applications. Like running the Internet backbone routers.
Also, if you are saying "efficient", in my mind that means Cooling per Watt, which they *didn't* mention.
I was very curious to know how many Watts it would take to cool a 25W microchip. If it is taking 50W whereas a fan would take 10mW.
I believe that Peltier's suffer from this. They are nice fanless systems that can cool below ambient temperature. But it takes more that 1 W per 1 W of cooling.
Our most common was "Olaf is headed the wrong way". We would find a long stretch, lay mines at the first corner, and then sit at the second corner and launch missles at the cars that made it through the minefield.
My friend and I used to "cheat", such that we would intentionally fail the first section over and over until we had the top-of-the-line battle tank. I think the rule was that one of the 2 players had to score higher than X, so we would make sure that we traded off for first place, so that we would get the maximum amount of cash without being allowed to the next level. (It could have also been that player 2 had to qualify.)
That was some of the most fun that I had in a racing game. All the rest of them just didn't have the gun control in the same way.
I have to agree that the hovercraft sort of sucked. It had spread mines, and a tracking gun, which also meant that you had a lot less control, and couldn't set up traps in the same way.
Re:Wine breaks backward compatibility a lot.
on
Wine 0.9.44 Released
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· Score: 1
The primary sound issue that I found is that Wine runs using OSS. Which only allows 1 program to access the sound system.
So if I'm running Rhythmbox, or I have a web page showing a flash movie, then when I start WoW it will not have any sound.
If I close out of those first, and then start WoW, I get sound.
This is almost definitely a 'random' code generated by a human. Simply because it has no 5 and a disproportionate number of 7s. (it also has no 0, which again hints at a human origin). 0 - 0 1 - 4 2 - 4 3 - 8 4 - 5 5 - 0 6 - 6 7 - 15 8 - 5 9 - 2
Actually, my biggest concern about the: "your password has to be X% different from your other passwords/you can't reuse an old password" is that it means somewhere they are saving all of the passwords that you've ever used. If they are just doing a "you can re-use a password" they could save a hash, but if they are doing "it must be significantly different from", then they have to save the whole password.
Which would make that just an absolutely delicious place for someone who was trying to break into other people's stuff. Not only do you get their current password, but you get all of their old passwords, which are very likely to have been used before for other things.
I'm pretty sure it doesn't support gopher, but it supports http just fine. (You have to add.listing files so that it can look in directories, but plain http is supported for get.)
It even supports webdav if you want to get and put into an http source.
Does darcs support webdav to push to an http archive, or do you have to run a darcs server on that machine?
I'm not really sure who runs over gopher, or really why, but that's interesting nonetheless.
(I'm not sure if you meant a different protocol, but I'm sure arch supports http/webdav, ftp, sftp, and the local filesystem)
Actually he said that the sad state is that emacs in the best editor. He seems to feel that things should be much better, but emacs is still far beyond everything else.
Well the couple comments about 4,5 are partially because arch lets you do things that the other programs don't.
The specific problems that are mentioned. If you have 2 branches, mine and yours. They are similar, but we've both been hacking on them.
I merge you changes, and you merge mine, and then we both commit. This causes some conflicts later. If, on the other hand, I merge your changes, commit, and then you merge my changes and commit, everything works very well.
The above poster was a little bit extra scary in this regard. 90% of the time star-merge just works, and it is a tool that nobody else comes close to supporting (perhaps darcs, maybe monotone, I'm talking SVN and CVS primarily)
I use star-merge all the time. I'm very happy with it.
Arch really does need a 'simple' mode for new people. It certainly took me longer than 20 minutes to get going well, and then a lot longer before I really got good at it.
The thing is, being really good at arch is more productive than being really good at svn.
I think arch supports a much better model for opensource development than svn. Because it is a distributed model. So while *I* might have the offical release of a project, if someone else wants to download and hack on it, they get to keep their changes in a revision control system, and I can easily merge their changes back. And if they keep developing, I can keep updating without them having to worry about what patches I accept and what I reject.
It also supports maintaining multiple development branches much better. (You have a --dev tree, and a --release tree, where each one is evolving, hopefully one faster than the other.) With CVS, you pretty much only have a branch to eventually merge it back to HEAD. My understanding is SVN is a little bit better about it, but they still don't natively support doing more than 1 merge between 2 trees and automatically detect what has been merged in the past.
I think the place where it can be broken is once there exists something that *can* decrypt it, which sits on your computer.
The whole point of downloading the cache is that you have it ready, so when the game ships, *it* can decrypt the cache. Now maybe nobody could ever in 1million years break the encryption. That is probably true.
But as soon as valve releases something that *is* capable of decrypting it, then I would expect 0-2 days before there is something else that decrypts the cache without Valve's help.
I believe Thunderbird supports using S/MIME for sending encrypted emails. At least Mozilla Mail has supported this for a long time. You need to have a certificate, but with OpenSSL, it is easy to set up a personal self-signed certificate, and work your way up from there. It probably isn't as nice as PGP, but it is built in. I have never used PGP before, so I can't really compare, but I have used S/MIME.
At least in KDE there is ALT+F2, which will allow you to run a program. I believe it always opens up a new program, so it wouldn't to the task switching that you mention, but otherwise it is there.
Just as an FYI, in general there are local calls, local toll calls, and long distance toll calls. The general idea is that calls to the same city are local, calls within the state are local toll, and calls everywhere else are long-distance toll. Why do they make that distinction? I have no idea, but I know from signing up for "long-distance" service, they frequently also ask you if you want your local-toll calls covered as well. It has been a while since I've done this, though, since I switched to using my cell phone for all long distance, and got rid of the long distance on my land line. We kept the land-line to make international calls through a calling card.
The revamped directory structure is a must. I've looked at it every way I can, but as far as I can see the old unix layout (while close to my heart) is not going to make desktop users happy. I've heard all tha counter arguments (and made most of them myself) so don't bother. I dissagree with his names, and I don't like the way MacOSX does it either, but something has to be done. Even if it isn't renaming (people can learn any names, after all) it should be depreciating certain practices and/or not allowing them. I know there are good reasons for/bin and/usr/bin and/usr/local/bin (and on Debian at least their uses are clearly defined) but one bin directory for users and one for root should be enough. (The argument is (of course) partitioning. Mount/usr ro!/bin is on / so that the system always boots and everything else can be remote! I don't have an answer; maybe the HURD and its fancy merging directory thing will be the solution.) Debian can dictate such a change, if it could be agreed upon.
Actually, to me, 1 bin directory isn't what I want. I want 100 directories, (one for each program) all as subdirectories to bin and automatically searched as part of the path.
That way you'd have something like/bin/mozilla-1.0,/bin/evolution-2.0, etc, and your path could just look like/bin/*
This lets me know which programs I have installed and what files belong to them. Any directory underneath/bin would be considered a potential bin directory. Searching through all the different paths could be a problem (which I would venture just depends on how the filesystem worked, under Linux doing autocomplete in bash is very fast, doing the same in Cygwin takes 5 minutes as it searches the path). However tex solved this with mktexlsr (Make tex ls -r) which basically just calls ls -R > ls-R, which now contains the directory structure in one single file, easily searchable.
I really don't like that I have 1 directory with 1000 programs in it. Maybe I'd end up with 200 directories, but that's still better than 1000.
Just my suggestion.
I'm not sure how it compares to Windows, or if there was a setting I could have configured, but one interesting thing I ran into was I had a computer with 2 GB of RAM (we were going to use it for large dataset studies) and while setting it up, I ended up telling WinXP that I wanted only 100MB for swap. Since to this point nothing big had been run, everything could have easily been run in RAM. But running a couple of large applications in the background (Word and Mozilla IIRC) for a total usage of maybe 300+ MB, WinXP put up a nice little warning saying, "Out of swap space increasing size". Which left me wondering why in the hell Windows was swapping. The only thing I could think of is that by some default XP swaps everything but the currently active programs. By the same token I ended turning off swap on my Laptop which has 512MB since only once have I ever run low on memory (running a game with a lot of stuff already open, closed them and haven't had a problem since), and it responds much faster when switching programs. Just an interesting Windows anectdote about improperly handled RAM.
I'd have to say, even if you want to run a GUI, you don't have to run KDE3. There's a lot of very functional lightweight window managers. IceWM, or OpenBox, etc, all are reasonable. They may not have every piece of eye-candy, but if you're going to try running WinXP, you're going to have to turn it all off as well.
In general Win2K has been very stable for me. However, every-so often when I would try to hotsync my Visor I would get: IRQ error, IRQ_NOT_LESS_THAN_OR_EQUAL, or something like that. for the usb module that was hotsync'ing the Visor. Now admitedly, it sounds like it was a Visor, not necessarily an MS, but it was still crashing.
And then, about a month or so ago, it decided it didn't know how to recognize a CD-ROM anymore. Now I could still boot off of a CD-ROM, and when I dual-booted to Linux, I could still read to the CD-ROM. But Win2K would have nothing to do with it. I don't have any idea how to fix the later error, other than doing a re-install. However, I've taken the time to investigate the potential for using Linux instead. Just because I'm trying to get off of my MS dependancy.
[More importantly, I either use MS for "free" or use Linux for _free_. And I have WAY fewer moral qualms with the latter, even if I am still a student.]
Right, but the tension exists because it has something pulling on it. When something is on the ground, there is no gravitational pull because it is all supported. There would be a small amount of pull based on the drop. Here's the idea. Take a rope. Make it a really really long rope. Lay it on the floor. Now pick up one end. The only tension in that rope is in the end you picked up. There is no _tension_ in the rest of the rope. If there was, it would have moved.
Actually, currently you can download the intel compiler and plug it into the MS Visual Studio IDE. So that when you say compile, it runs Intel's compiler instead of MS's. I'm pretty sure this has been the case for quite a while.
I don't know if MS has their own compiler for IA64. But I do know that the intel one costs ~$500 [although they will let you use the Linux non-commericial version for free, and they have a 30-day demo for the MS-Win version. I'm not sure if you can extend the demo indefinitely by just signing up for a new 30-days or not. I haven't checked that yet.]
Actually I believe it was written somewhere that you might want to destroy some of the towers. (At least I remember reading that.) I know I destroyed a couple of the key ones for defense, and then let the rest so I could have big mage groups. I had fun with this game, but the one time I tried to play multiplayer, (against my roommate) he hadn't practised as much and felt like he lost bad. Actually he terrorized one of my keeps, but I was able to hold him off. Anyway, we never played it together again, and once I managed to beat the single-player campaign, I never really went back. Maybe I should give it a shot again.
Just a little thing to point out: Factorial is faster than exponential because it acts like exponential (each step introduces a new multiplication), but each time the base gets bigger.
For example: 2^5 = 2*2*2*2*2 = 32 while 5! = 5*4*3*2*1 = 120
The only time exponential is bigger is when the base is larger than the exponent (100^99 > 99!, but 100^102 is probably less than 102!)
Do you mean how to hook up your computer to your TV? Because the answer for hooking up your computer to your PC is pretty different.:)
The TV thing just requires a TV out and supported software (which if you have the TV out on the card, you probably have some form of support.) I'm not sure about Linux, but for my Windows box, it's pretty much just hook it up and watch it run.
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Sure, but you don't have to do it at room temperature, either. There are superconductors at Liquid Nitrogen temps. Certainly most MRI machines use Liquid Helium temperature superconductors. They, of course, cost millions of dollars, but they are still used quite frequently.
IIRC, LN costs about the same as milk (~$3/gallon). If the rate of evaporation wasn't too great, it would just be an on-going charge. Say it was 1 gallon/month, would only cost you about $36/year.
Obviously LN distribution isn't up to par with electricity, but in the "closer" term it certainly would be feasible for "industrial" applications. Like running the Internet backbone routers.
There are 2 statements.
1) "there exists" a configuration for which the minimum number of steps is "18".
2) "for all" configurations, "there exists" a solution that takes less than XX steps to solve.
We are trying to find the answer to #2. We know that #1 exists, so we know that the lower bound of a perfect solver (#2) is 18.
The article seems to be saying that the upper bound of #2 is 21-23.
Also, if you are saying "efficient", in my mind that means Cooling per Watt, which they *didn't* mention.
I was very curious to know how many Watts it would take to cool a 25W microchip. If it is taking 50W whereas a fan would take 10mW.
I believe that Peltier's suffer from this. They are nice fanless systems that can cool below ambient temperature. But it takes more that 1 W per 1 W of cooling.
Our most common was "Olaf is headed the wrong way". We would find a long stretch, lay mines at the first corner, and then sit at the second corner and launch missles at the cars that made it through the minefield.
My friend and I used to "cheat", such that we would intentionally fail the first section over and over until we had the top-of-the-line battle tank. I think the rule was that one of the 2 players had to score higher than X, so we would make sure that we traded off for first place, so that we would get the maximum amount of cash without being allowed to the next level. (It could have also been that player 2 had to qualify.)
That was some of the most fun that I had in a racing game. All the rest of them just didn't have the gun control in the same way.
I have to agree that the hovercraft sort of sucked. It had spread mines, and a tracking gun, which also meant that you had a lot less control, and couldn't set up traps in the same way.
The primary sound issue that I found is that Wine runs using OSS. Which only allows 1 program to access the sound system.
So if I'm running Rhythmbox, or I have a web page showing a flash movie, then when I start WoW it will not have any sound.
If I close out of those first, and then start WoW, I get sound.
This page:
http://www.wowwiki.com/Linux/Wine#Voice_Chat
Talks about it a bit, and suggests possibly trying alsa-oss, which is a program which redirects the OSS calls into Alsa calls.
It isn't something I've tried yet, but it might be worthwhile.
This is almost definitely a 'random' code generated by a human. Simply because it has no 5 and a disproportionate number of 7s. (it also has no 0, which again hints at a human origin).
0 - 0
1 - 4
2 - 4
3 - 8
4 - 5
5 - 0
6 - 6
7 - 15
8 - 5
9 - 2
Actually, my biggest concern about the: "your password has to be X% different from your other passwords/you can't reuse an old password" is that it means somewhere they are saving all of the passwords that you've ever used. If they are just doing a "you can re-use a password" they could save a hash, but if they are doing "it must be significantly different from", then they have to save the whole password.
Which would make that just an absolutely delicious place for someone who was trying to break into other people's stuff. Not only do you get their current password, but you get all of their old passwords, which are very likely to have been used before for other things.
Missing support for http?
.listing files so that it can look in directories, but plain http is supported for get.)
I'm pretty sure it doesn't support gopher, but it supports http just fine. (You have to add
It even supports webdav if you want to get and put into an http source.
Does darcs support webdav to push to an http archive, or do you have to run a darcs server on that machine?
I'm not really sure who runs over gopher, or really why, but that's interesting nonetheless.
(I'm not sure if you meant a different protocol, but I'm sure arch supports http/webdav, ftp, sftp, and the local filesystem)
He's an emacs user. :)
Actually he said that the sad state is that emacs in the best editor. He seems to feel that things should be much better, but emacs is still far beyond everything else.
Well the couple comments about 4,5 are partially because arch lets you do things that the other programs don't.
The specific problems that are mentioned. If you have 2 branches, mine and yours. They are similar, but we've both been hacking on them.
I merge you changes, and you merge mine, and then we both commit. This causes some conflicts later. If, on the other hand, I merge your changes, commit, and then you merge my changes and commit, everything works very well.
The above poster was a little bit extra scary in this regard. 90% of the time star-merge just works, and it is a tool that nobody else comes close to supporting (perhaps darcs, maybe monotone, I'm talking SVN and CVS primarily)
I use star-merge all the time. I'm very happy with it.
Arch really does need a 'simple' mode for new people. It certainly took me longer than 20 minutes to get going well, and then a lot longer before I really got good at it.
The thing is, being really good at arch is more productive than being really good at svn.
I think arch supports a much better model for opensource development than svn. Because it is a distributed model. So while *I* might have the offical release of a project, if someone else wants to download and hack on it, they get to keep their changes in a revision control system, and I can easily merge their changes back. And if they keep developing, I can keep updating without them having to worry about what patches I accept and what I reject.
It also supports maintaining multiple development branches much better. (You have a --dev tree, and a --release tree, where each one is evolving, hopefully one faster than the other.) With CVS, you pretty much only have a branch to eventually merge it back to HEAD. My understanding is SVN is a little bit better about it, but they still don't natively support doing more than 1 merge between 2 trees and automatically detect what has been merged in the past.
I think the place where it can be broken is once there exists something that *can* decrypt it, which sits on your computer.
The whole point of downloading the cache is that you have it ready, so when the game ships, *it* can decrypt the cache. Now maybe nobody could ever in 1million years break the encryption. That is probably true.
But as soon as valve releases something that *is* capable of decrypting it, then I would expect 0-2 days before there is something else that decrypts the cache without Valve's help.
I believe Thunderbird supports using S/MIME for sending encrypted emails. At least Mozilla Mail has supported this for a long time. You need to have a certificate, but with OpenSSL, it is easy to set up a personal self-signed certificate, and work your way up from there. It probably isn't as nice as PGP, but it is built in. I have never used PGP before, so I can't really compare, but I have used S/MIME.
At least in KDE there is ALT+F2, which will allow you to run a program. I believe it always opens up a new program, so it wouldn't to the task switching that you mention, but otherwise it is there.
Just as an FYI, in general there are local calls, local toll calls, and long distance toll calls.
The general idea is that calls to the same city are local, calls within the state are local toll, and calls everywhere else are long-distance toll.
Why do they make that distinction? I have no idea, but I know from signing up for "long-distance" service, they frequently also ask you if you want your local-toll calls covered as well.
It has been a while since I've done this, though, since I switched to using my cell phone for all long distance, and got rid of the long distance on my land line. We kept the land-line to make international calls through a calling card.
That way you'd have something like
This lets me know which programs I have installed and what files belong to them. Any directory underneath
I really don't like that I have 1 directory with 1000 programs in it. Maybe I'd end up with 200 directories, but that's still better than 1000.
Just my suggestion.
I'm not sure how it compares to Windows, or if there was a setting I could have configured, but one interesting thing I ran into was I had a computer with 2 GB of RAM (we were going to use it for large dataset studies) and while setting it up, I ended up telling WinXP that I wanted only 100MB for swap. Since to this point nothing big had been run, everything could have easily been run in RAM.
But running a couple of large applications in the background (Word and Mozilla IIRC) for a total usage of maybe 300+ MB, WinXP put up a nice little warning saying, "Out of swap space increasing size".
Which left me wondering why in the hell Windows was swapping. The only thing I could think of is that by some default XP swaps everything but the currently active programs.
By the same token I ended turning off swap on my Laptop which has 512MB since only once have I ever run low on memory (running a game with a lot of stuff already open, closed them and haven't had a problem since), and it responds much faster when switching programs.
Just an interesting Windows anectdote about improperly handled RAM.
I'd have to say, even if you want to run a GUI, you don't have to run KDE3. There's a lot of very functional lightweight window managers. IceWM, or OpenBox, etc, all are reasonable. They may not have every piece of eye-candy, but if you're going to try running WinXP, you're going to have to turn it all off as well.
In general Win2K has been very stable for me. However, every-so often when I would try to hotsync my Visor I would get:
IRQ error, IRQ_NOT_LESS_THAN_OR_EQUAL, or something like that. for the usb module that was hotsync'ing the Visor. Now admitedly, it sounds like it was a Visor, not necessarily an MS, but it was still crashing.
And then, about a month or so ago, it decided it didn't know how to recognize a CD-ROM anymore. Now I could still boot off of a CD-ROM, and when I dual-booted to Linux, I could still read to the CD-ROM. But Win2K would have nothing to do with it.
I don't have any idea how to fix the later error, other than doing a re-install. However, I've taken the time to investigate the potential for using Linux instead. Just because I'm trying to get off of my MS dependancy.
[More importantly, I either use MS for "free" or use Linux for _free_. And I have WAY fewer moral qualms with the latter, even if I am still a student.]
Actually, copying a book for educational purposes is legal. I don't know that copying the whole book is, but sections for references is.
At least that's been my understanding for a while. You can't disseminate to the public as a whole, but you can give it to your students to study from.
Right, but the tension exists because it has something pulling on it.
When something is on the ground, there is no gravitational pull because it is all supported.
There would be a small amount of pull based on the drop.
Here's the idea. Take a rope. Make it a really really long rope. Lay it on the floor. Now pick up one end. The only tension in that rope is in the end you picked up. There is no _tension_ in the rest of the rope. If there was, it would have moved.
Actually, currently you can download the intel compiler and plug it into the MS Visual Studio IDE. So that when you say compile, it runs Intel's compiler instead of MS's. I'm pretty sure this has been the case for quite a while.
I don't know if MS has their own compiler for IA64. But I do know that the intel one costs ~$500 [although they will let you use the Linux non-commericial version for free, and they have a 30-day demo for the MS-Win version. I'm not sure if you can extend the demo indefinitely by just signing up for a new 30-days or not. I haven't checked that yet.]
Actually I believe it was written somewhere that you might want to destroy some of the towers. (At least I remember reading that.)
I know I destroyed a couple of the key ones for defense, and then let the rest so I could have big mage groups.
I had fun with this game, but the one time I tried to play multiplayer, (against my roommate) he hadn't practised as much and felt like he lost bad. Actually he terrorized one of my keeps, but I was able to hold him off. Anyway, we never played it together again, and once I managed to beat the single-player campaign, I never really went back.
Maybe I should give it a shot again.
Just a little thing to point out:
Factorial is faster than exponential because it acts like exponential (each step introduces a new multiplication), but each time the base gets bigger.
For example:
2^5 = 2*2*2*2*2 = 32
while
5! = 5*4*3*2*1 = 120
The only time exponential is bigger is when the base is larger than the exponent
(100^99 > 99!, but 100^102 is probably less than 102!)
Do you mean how to hook up your computer to your TV? Because the answer for hooking up your computer to your PC is pretty different. :)
The TV thing just requires a TV out and supported software (which if you have the TV out on the card, you probably have some form of support.) I'm not sure about Linux, but for my Windows box, it's pretty much just hook it up and watch it run.