Sound like they should be named after Dilbert chanracters at your place.......
Seriously, though, at the place I work, the boss has a sailboat which he hopes to sail around the world one day in. So, the servers are named for all the places he wants to visit: Fiji, Samoa,......
I've got the box in my stereo stack, and I'm planning on getting the remote working. Then check out the LCD displays at Linux Central. What more could you want?
The trouble is that the QT library is so nice to use. We've got to either develop a GPL replacement, or abandon the whole thing. Either would allow the division between KDE and Gnome to end. KDE may have done a lot for usability, but it has dragged the community into a position they never wanted to be in.
It's hard to blame Corel for this, and I suspect many other "new developers" in the Linux community will fall into this trap, unknowingly.
Maybe at the extreme, it needs to be "use GPL or don't play in the Linux field". Remember, there is nothing that says you can't make money off GPL software (I am right now).
If we're all so sure that Open Source is the way of the future, than this GPL limitation shouldn't matter once all software is on a level playing field.
Think of how much more mp3 "sharing" will happen with these gizzmos.... Plug my player into yours while we're at work/school & bingo! When I go home for the day I'm juiced up with new tunes.
THis reminds me of days gone by when I was at Uni and the whole class of us had HP48SXs with the IR transfer ports. Man, those things were neat. We shared formula/progs/.........
Couldn't play mp3s though:(
I agree that something like this product has one hell of a potential.
What we need is a manufacturer to build an open hardware device so we can "massage" the software.
Ya, this would maybe let me be the grand master I'll never be.:)
As to your questions:
a) the total number of move possible is, as you say, astronomical. Hey you don't need seti@home power to figure out tic-tac-toe:) I've never heard a definitive count, since it depends on how many moves the game runs for before there is a victor.
b) the hope, when 'solving' a game is to predict every possible outcome of the game from the very beginning. So that when Kasparov makes his first move, our chess@home goes "got you now Gary!" I don't think any computer chess game can see more than 10 moves into the future, but I could be off here. The point is, the more the better. The problem in tournament play is that there is only so long you can crunch on the problem before having to make a move. THis is what has limited all previous attempts.
c) This is an interesting question. Remember the time factor. Each participant would have to retur n their results before a move could be made. Some like a coordinating computer figures out all possible "first next moves". Each of these is then passed to a participant to determine the outcome.
d) AGain interesting. Obviously we're looking for a path to a checkmate, but we don't want to start throwing all pieces to do it. I think each available path to checkmate (there'd probably be thousands), would have to be evaluated to determine which path ensures our position is always the strongest.
e) ?, I have the partial skills and the partial time. Maybe I'll fool around to see how feasible this would be.
I like the sound of this. One of the problems with Chess is that it has not yet (AFAIK) become a 'solved' game. Checkers can easily (as can tic-tac-toe) be solved, where every possible outcome can be determined before each move. Even Kasparov has no chance of solving a game like Chess. I think he has the ability to see 7 moves in advance.
Solving Chess is quite a task... If, on every move there were 10 (at least) possible moves, this games would have 10^62 possible outcomes. Holy crap!
A client for this would actually be fairly straight-forward, as almost no strategy is required, just hard number crunching and results examination.
I don't know why they bother with actual refrigeration compressors. Peltier Devices are more than capable of cooling a CPU to below freezing temperatures. They are cheap, easy to apply, and also run on 12VDC.
If you don't know what Peltier devices are, they are used in portable refrigerators for cars.
When I was in high school we setup a new Model 60 as a server. Had a whole pile of Model 25s (Mac like) and 30s as clients.
Up until 6 months ago I was still using a Model 70 (386/20). Great little box and must have been worth a small fortune new. I wanted to gut the components out of it and use the case for new stuff, but it just wasn't feasible. It started with the funky power supply and just got worse.
I'm afraid that the next drive for my mp3 player may need to be one of these. Since getting into mp3s, I've evolved from a 2G, to a 2G + 6G, 6G + 13G and that's now full! 73G would keep me out of trouble for another year.
The suggestion to write a fractal viewer struck a chord with me.
As a teenager (10 years ago), I can remember first reading about the Mandelbrot Set in Scientific American. They gave the formula by which it was created, but no actual code to do it yourself.
Some number of hours later, I had a QB program (ya, I know, I didn't have a DOS C compiler yet) that could generate a fractal. Then I had to create a viewer to see it. After about 3 hours of crunching (I went to see a movie) on my poor 386-20, I was amazed to be looking at the Mandelbrot set.
I agree that boredom is one damn poor excuse to start cracking. Many more will be impressed by a hacking effort than a cracking effort.
I've spent the last 5 years commuting on what's called "The busiest stretch of highway in North America". It's in Toronto, Ontario along the 401 highway. It's 16 lanes of parking lot most of the day.
All that time sitting stopped behing the wheel has given me ample opportunity to study the flow of traffic. The ripple effect is exactly what happens. I have used the same technique of proceeding at a fixed speed and it has the interesting side effect of smoothing out traffic that is following me.
I'm convinced that one stupid move on the part of one driver can have very large consequences to the whole traffic flow. This is the idea speculated in the article as chaos theory.
But this goes the other way too. A smart move on the part of one driver may impact many other cars positively.
Ultimately, I think it comes down to driver impatience, and not being aware of what other cars are doing.
I don't see how sophisticated traffic models are going to help these two problems at all.
A number of you have pointed out that the 7805 is incapable of handling the current, and even if it could, it would need a lot of heatsinking. My apologies... I probably should have explicitly said "I know the 7805 can't do the job, but there are 7805 "like" devices that can handle 5A, when properly heat sunk." Everyone seems so concerned about efficiency, but we're talking 100W maybe. Does your car have power windows? Well, they'll draw more juice than this thing ever will. IMHO, I'll take the compactness and low cost of my solution over the efficiency of the inverter-standard PS. Besides, I NEED the heat, since I live in Ontario, Canada, and want to use the final product in the winter.
I've thought about doing a design for a switched mode PS, but here's my problem... The transformer. I'd like to come up with something that we could all easily repeat, and a hand-wound transformer is not that. Anybody got any thoughts???
I agree with what you are saying about the 7805s in parallel, but the only real cause of failure is overheating. In any event, there are 5A ones available which would be enough current for me.
I was just checking pricing on switching power supplies and while easy, you're right, they're not cheap. I'm looking for cheap and nasty.
I've been working on my schematic based on a previous design I did for a different application, and I'll hopefully have it posted tonight.
Even with the PC104, you'll still have to contend with +5V.
I'm interested in your EFI project. I have a good idea how OEM systems work, and have thought of a few ideas to add to them.
Basically all you need is caps to stabilize the +14.4V alternator output. Then run that thru a 7805 and 7812 (+5V and +12V) and a DC-DC IC convertor to provide the -5/-12V power. The largest problem is the +5V current. I've made some measurements and it seems to be somewhere in the 3+ Amp range. This can be accomplished by ganging a few 7805 regulators in TO-3 cases which can handle 3A each, when properly heatsinked.
Don't bother with 120VAC invertors, they're bulky and overkill. I also like the idea of using Peltier devices for the heating/cooling needs of the components. Don't forget humidity!
Why don't I just come up with a schematic and post it? Anyone interested??? I'm going to build one for myself anyway.
Slashdot Mirror
"innovation, integrity, serving customers, partnership, quality and giving to the community."
All I can say is WTF.
What platforms are you running Linux on and why? x86, Alpha, PPC, mips, Sparc, ....
Thanks, and keep up the good work.
GRH
For me, the Matrix is about the only sci-fi film I've recently seen that was worthwhile. I like the older X files too.
Funny, but back when TNG was on every week, I wouldn't miss a show. Now, I don't even watch TV anymore (no cable or satellite).
Star Trek is going to have to come up with something good for me to get the cable hooked up again.
GRH
If you want phone support, it's available, but only for $150 per incident. Yikes!
Better not call Billy for NT support then.
Caldera's market is business, not everyone, like RedHat tries to be.
Also, I disagree that Caldera is any worse than RH in the server league. Check out the Netware support.
GRH
Sound like they should be named after Dilbert chanracters at your place.......
......
Seriously, though, at the place I work, the boss has a sailboat which he hopes to sail around the world one day in. So, the servers are named for all the places he wants to visit:
Fiji, Samoa,
GRH
For the IR remote control, check out LIRC
I've got the box in my stereo stack, and I'm planning on getting the remote working. Then check out the LCD displays at Linux Central. What more could you want?
GRH
The trouble is that the QT library is so nice to use. We've got to either develop a GPL replacement, or abandon the whole thing. Either would allow the division between KDE and Gnome to end. KDE may have done a lot for usability, but it has dragged the community into a position they never wanted to be in.
/dev/null)
It's hard to blame Corel for this, and I suspect many other "new developers" in the Linux community will fall into this trap, unknowingly.
Maybe at the extreme, it needs to be "use GPL or don't play in the Linux field". Remember, there is nothing that says you can't make money off GPL software (I am right now).
If we're all so sure that Open Source is the way of the future, than this GPL limitation shouldn't matter once all software is on a level playing field.
GRH
(flames happily directed to
Think of how much more mp3 "sharing" will happen with these gizzmos.... Plug my player into yours while we're at work/school & bingo! When I go home for the day I'm juiced up with new tunes.
:(
:)
THis reminds me of days gone by when I was at Uni and the whole class of us had HP48SXs with the IR transfer ports. Man, those things were neat. We shared formula/progs/.........
Couldn't play mp3s though
I agree that something like this product has one hell of a potential.
What we need is a manufacturer to build an open hardware device so we can "massage" the software.
MAME for my mp3 player
GRH
Ya, this would maybe let me be the grand master I'll never be. :)
:) I've never heard a definitive count, since it depends on how many moves the game runs for before there is a victor.
As to your questions:
a) the total number of move possible is, as you say, astronomical. Hey you don't need seti@home power to figure out tic-tac-toe
b) the hope, when 'solving' a game is to predict every possible outcome of the game from the very beginning. So that when Kasparov makes his first move, our chess@home goes "got you now Gary!" I don't think any computer chess game can see more than 10 moves into the future, but I could be off here. The point is, the more the better. The problem in tournament play is that there is only so long you can crunch on the problem before having to make a move. THis is what has limited all previous attempts.
c) This is an interesting question. Remember the time factor. Each participant would have to retur n their results before a move could be made. Some like a coordinating computer figures out all possible "first next moves". Each of these is then passed to a participant to determine the outcome.
d) AGain interesting. Obviously we're looking for a path to a checkmate, but we don't want to start throwing all pieces to do it. I think each available path to checkmate (there'd probably be thousands), would have to be evaluated to determine which path ensures our position is always the strongest.
e) ?, I have the partial skills and the partial time. Maybe I'll fool around to see how feasible this would be.
GRH
I like the sound of this. One of the problems with Chess is that it has not yet (AFAIK) become a 'solved' game. Checkers can easily (as can tic-tac-toe) be solved, where every possible outcome can be determined before each move. Even Kasparov has no chance of solving a game like Chess. I think he has the ability to see 7 moves in advance.
Solving Chess is quite a task... If, on every move there were 10 (at least) possible moves, this games would have 10^62 possible outcomes. Holy crap!
A client for this would actually be fairly straight-forward, as almost no strategy is required, just hard number crunching and results examination.
GRH
I don't know why they bother with actual refrigeration compressors. Peltier Devices are more than capable of cooling a CPU to below freezing temperatures. They are cheap, easy to apply, and also run on 12VDC.
If you don't know what Peltier devices are, they are used in portable refrigerators for cars.
One source of them that I know of is here
Have fun,
GRH
When I was in high school we setup a new Model 60 as a server. Had a whole pile of Model 25s (Mac like) and 30s as clients.
Up until 6 months ago I was still using a Model 70 (386/20). Great little box and must have been worth a small fortune new. I wanted to gut the components out of it and use the case for new stuff, but it just wasn't feasible. It started with the funky power supply and just got worse.
Still use my original AT keyboard though!
GRH
As to the lighting issue... The answer lies at:
i d=-1
http://slashdot.org/pollBooth.pl?qid=lighting&a
I would agree that the Matrix is the best of the bunch.
GRH
I'm afraid that the next drive for my mp3 player may need to be one of these.
Since getting into mp3s, I've evolved from a 2G, to a 2G + 6G, 6G + 13G and that's now full!
73G would keep me out of trouble for another year.
Cheers,
GRH
The suggestion to write a fractal viewer struck a chord with me.
As a teenager (10 years ago), I can remember first reading about the Mandelbrot Set in Scientific American. They gave the formula by which it was created, but no actual code to do it yourself.
Some number of hours later, I had a QB program (ya, I know, I didn't have a DOS C compiler yet) that could generate a fractal. Then I had to create a viewer to see it. After about 3 hours of crunching (I went to see a movie) on my poor 386-20, I was amazed to be looking at the Mandelbrot set.
I agree that boredom is one damn poor excuse to start cracking. Many more will be impressed by a hacking effort than a cracking effort.
GRH
well, my rough quick calculation give 0.01c, but it's still pretty fast.
GRH
I've spent the last 5 years commuting on what's called "The busiest stretch of highway in North America". It's in Toronto, Ontario along the 401 highway. It's 16 lanes of parking lot most of the day.
All that time sitting stopped behing the wheel has given me ample opportunity to study the flow of traffic. The ripple effect is exactly what happens. I have used the same technique of proceeding at a fixed speed and it has the interesting side effect of smoothing out traffic that is following me.
I'm convinced that one stupid move on the part of one driver can have very large consequences to the whole traffic flow. This is the idea speculated in the article as chaos theory.
But this goes the other way too. A smart move on the part of one driver may impact many other cars positively.
Ultimately, I think it comes down to driver impatience, and not being aware of what other cars are doing.
I don't see how sophisticated traffic models are going to help these two problems at all.
Anybody know if these infrared cameras actually work? Last time I priced true infrared cameras they were about $80,000 CDN.
Still pretty neat gadgets though.
A number of you have pointed out that the 7805 is incapable of handling the current, and even if it could, it would need a lot of heatsinking. My apologies... I probably should have explicitly said "I know the 7805 can't do the job, but there are 7805 "like" devices that can handle 5A, when properly heat sunk." Everyone seems so concerned about efficiency, but we're talking 100W maybe. Does your car have power windows? Well, they'll draw more juice than this thing ever will. IMHO, I'll take the compactness and low cost of my solution over the efficiency of the inverter-standard PS. Besides, I NEED the heat, since I live in Ontario, Canada, and want to use the final product in the winter.
I've thought about doing a design for a switched mode PS, but here's my problem... The transformer. I'd like to come up with something that we could all easily repeat, and a hand-wound transformer is not that. Anybody got any thoughts???
Greg
I agree with what you are saying about the 7805s in parallel, but the only real cause of failure is overheating. In any event, there are 5A ones available which would be enough current for me.
I was just checking pricing on switching power supplies and while easy, you're right, they're not cheap. I'm looking for cheap and nasty.
I've been working on my schematic based on a previous design I did for a different application, and I'll hopefully have it posted tonight.
Even with the PC104, you'll still have to contend with +5V.
I'm interested in your EFI project. I have a good idea how OEM systems work, and have thought of a few ideas to add to them.
Greg
Basically all you need is caps to stabilize the +14.4V alternator output. Then run that thru a 7805 and 7812 (+5V and +12V) and a DC-DC IC convertor to provide the -5/-12V power. The largest problem is the +5V current. I've made some measurements and it seems to be somewhere in the 3+ Amp range. This can be accomplished by ganging a few 7805 regulators in TO-3 cases which can handle 3A each, when properly heatsinked.
Don't bother with 120VAC invertors, they're bulky and overkill. I also like the idea of using Peltier devices for the heating/cooling needs of the components. Don't forget humidity!
Why don't I just come up with a schematic and post it? Anyone interested??? I'm going to build one for myself anyway.
Greg