Domain: berkeley.edu
Stories and comments across the archive that link to berkeley.edu.
Comments · 3,539
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ken goldberg...
it only seems fair that after all that someone should interview ken goldberg, yes?
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On the other hand
The idea of a clean kill is pretty much a pipe dream anyway. Bombs go astray, the jury's still out on the health effects of distributing DUP dust into the atmosphere from a burning target, and at least with lasers you won't have all that dreadful unexploded ordnance to clean up.
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Re:Why would Dell want to sell their own printers?This forces you to keep a stock of ink on hand in case you run out. So odds are you'll have at least one extra ink cartridge when you decide to toss the old printer in favor of a new one. Guess what? You've just bought something you're not going to use! It's the same idea as debit cards (not the ones linked to your bank account, but like "Disney Dollars" or "D&B cards"). Odds are that you will never extingush the amount on those cards, and just get rid of it while it still has some "value" to it. After 60 days or whatever of non-use, the card expires, and the company gets that value. It's not much, but over thousands of customers, it adds up nicely. (Yes, you can replenish some of these cards, but the idea is still the same).
I just got through trying to crack some riddles, so my brain is rather toasted, but this situation is not QUITE like the prepay debit cards.. because although Dell gets you to buy something you wouldn't otherwise buy, and therefore makes some profit they wouldn't otherwise make, they actually have to give you the cartridge, so their profits aren't so substantial.
With the prepay card people, they take your money and don't give you anything unless you *use* the card.. which they assume most people won't do entirely.
But, I suppose you're right for the end user: it sucks both way, and unless you can purchase something much cheaper through an inconvenient avenue (online in this case), then it doesn't make sense to purchase that way. If you *can* get it cheaper, then if you save $10 on each $40 cartridge, and use 20 cartridges over the life of the printer, but have 2 cartridges left when you heave it into the dumpster, you still saved a boat-load of money... even though you accidentaly allowed the seller to profit unnecessarily on the last two cartridges.
But anyway, it seems like printer makers always either sell really expensive printers with cheap cartridges, or (more often now) sell extrodinarily cheapo printers and expensive cartridges. (In fact I often see Lexmark, Dell's possible partner in this, seems to be selling their Z-series at incredibly low prices..) That way, I guess they probably get themselves in the market (even at a loss) looking really inexpensive.. but then make a ton of money on cartridges. Can they REALLY cost $40 to make, market, and sell??
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tbe circular jail cell question
from the site...
How many prisoners found their doors open after 100 rounds? The answer of course, is none - after the first drunken round, the prisoners have awoken, left their cells, and are busy drinking at the nearest strip club. -
The "triangle" test
here
IMHO no one of the two figures is a triangle...! Am I wrong? Or the test statement is tricky?
Cheers
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A slashdotting isnt funny when it happens to me.
No wonder I had so much trouble accessing my own site. hey guys, think of the mudhoney fans (http://www.ocf.berkeley.edu/~ptn/mudhoney/) and leave the server alone.
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Re:computational chemistry?
Leave simulation and computers in physics where they belong.
Nonsense. Physics is done with nothing more sophisticated than a slide rule for calculations. If the problem can't be done with a slide rule, just make a few simplifying assumptions and try again. Even the great Enrico Fermi used nothing more than a slide rule.
Chemists, on the other hand have a much more difficult world. They can't simplify everything down to a trivial case because the atoms they deal with have their properties determined by their complex electonic structures, and the molecules are made up of assemblies of thousand and more atoms. To understand the behaviour of these structures you must have powerful computers. -
University Cheaters
It's sad what admins will convince businesses and colleges to do just to get ahead in the SETI ratings.
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Re:Does JPEG 2000 have an open license?A discission I found from Google states that:
...JBIG and JPEG 2000 both mandate use of one or more patented techniques
which are owned by companies that take part in JPEG.[1]
And mentions some nice licensing guidelines:I would welcome a standard wavelets codec, and an associated standard
But earlier on Slashdot in Slashback: Alternatives, Ads, Apple A discussion regarding the licensing scheme to Jpeg2000 pointed to it (the license) being open.
format, but I'm not very interested unless they are either free of
patents or include a free-of-charge unlimited license.--Nick Lamb njl98rSWAPWITHATSIGNecs.soton.ac.uk: When will Gimp support JPEG2000
Can anyone verify that Jpeg2000 has an unencumbering license? ...because those companies who currently claim patents on part 1 of JPEG2000 have also agreed to license their patents to
the general public without royalty--yerricde, User #125198: JPEG2000 is royalty free
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Logistic growth
Will the donations per day be constant? Linear? Exponentially increasing? Exponentially decaying?
The growth of a population, such as the spread of a computer worm, typically follows a "logistic growth" curve, that is, starting out with roughly exponential growth and ending up with exponential decay of the rate at which new infections occur as the worm reaches "carrying capacity". A worm begins to reach carrying capacity as the number of vulnerable uninfected hosts dies down. See more about the growth rate of a worm population in this article about Warhol Worms by Nicholas C Weaver.
In the case of a pledge drive, exponential growth comes from word of mouth spread, and Slashdot seems to provide a strong burst in the population of donors. As of this writing, 20854 has been pledged, and the Blender Foundation has collected 11775 of that. The big question in this case is whether the carrying capacity measured in donor contributions exceeds $100,000.
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Alphora Dataphor DAE
The Alphora Dataphor DAE is the first relational database management system since IBM BS12 and the QUEL version of Postgres.
It was coded for MS
.Net, thus it should be readily portable to Ximian Mono or GNUs & Southern Storms DotGNU Portable.Net.If such a potentially useful software became publicized and free software, we could have a really innovating no Marketspeak intended , probably killer application the proprietary vendors would have a hard time scrambling after.
And that with unreprochable theoretical foundations attested by the luminars of the field.
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Alphora Dataphor DAE
The Alphora Dataphor DAE is the first relational database management system since IBM BS12 and the QUEL version of Postgres.
It was coded for MS
.Net, thus it should be readily portable to Ximian Mono or GNUs & Southern Storms DotGNU Portable.Net.If such a potentially useful software became publicized and free software, we could have a really innovating no Marketspeak intended , probably killer application the proprietary vendors would have a hard time scrambling after.
And that with unreprochable theoretical foundations attested by the luminars of the field.
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Stunnel, TLSWrap, SSLWrap, Safetp.
I personally use Stunnel on a few boxes, linux/windows/freebsd. It basically wraps your connection with ssl. You set it up on both servers, then connect to localhost:port and it forwards to the remote server ssl encrypted. Like ssh tunnels, but its a stand alone program. Also very transparent to the user.
TLSwrap is another ssl wrapper, used for ftp, but can be used for other ports.
Safetp seems to be a popular one with the college kids. Ive tested it out, and it does encrypt your session, and any ftp client will work since it encrypted the port.
Personally, I dont want command line on windows, I want a GUI for windows. Tight VNC isnt encrypted, but you can use stunnel to take care of that. But I find remote desktop, using rdp 5.1, is fast as hell(compared to tightvnc) and is designed for windows. Very usable over a modem too.
I Love computers and networking, 500 solutions to 1 problem. -
Per-user file permissions
I think the complaint about "configurations of individual permissions" refers to some additional refinement of permissions in Windows. In reality, the Unix permissions scheme adapts fairly well to real-world issues, providing good security without too much inconvenience. The Windows permission scheme, in contrast, appears over-complicated, poorly understood by Windows admins, and frequently ignored/bypassed.
I wouldn't be so quick to dismiss this point. Windows does offer finer-grained permissions control than UNIX, and this is important for certain types of collaborative situations. The Windows user interface implementation is pretty awful, and makes them hard to set and administer, but we shouldn't discard the book's premise just because it has a poor cover.
Ka-Ping Yee gives an elegant example, and a somewhat less elegant sample solution, in section 4.8 of this paper.
*> C -
Re:I wanna be...
I wanna be on THEIR SETI@home team!
You mean this one. It doesn't seem to have been active since late '99, probably about when they started heavy work on FotR. -
Re:OK, how many LOC*s is that?
Not including pictures, the answer is about
.05 LOC per disk, or about 20 of these 1TB disks for the entire text of the collection.
For added perspective, the Internet Archive lists a number of other comparisons to their over 100 Terabytes of web pages dating from 1996.
Finally, in 2000 the "How Much Information?" project attempted to estimate the total amount of information produced in all major mediums: from books to TV to the Internet to photos to x-rays and more. Based on their data (from a few years ago), every American musical recording produced each year could fit on a couple of these new 1TB disks (compressed) and every new DVD could probably fit on about a dozen. The Internet is harder to estimate, due to hidden content (databases, dynamic pages) but they estimated the "surface" web to be 25-50 Terabytes and total "web-connected documents" to be as high as 7,500 Terabytes! -
Re: The Unparalleled Invasion
Oops, I left a space in the middle of the link. This is a good story read it.
The Unparalleled Invasion -
seti hack that could have been an eggI live on Mars, used to have my own dedicated country page as well, but they removed it after I submitted the story to jurnos some years ago. But did they leave it in as an egg so they could sign up as any country they wanted ?
http://setiathome.ssl.berkeley.edu/fcgi-bin/fcgi?
e mail=b_o_l_l_o_x@hotmail.com&cmd=user_statshttp://setiathome.ssl.berkeley.edu/fcgi-bin/fcgi?
c md=view_feedback&id=6664 -
seti hack that could have been an eggI live on Mars, used to have my own dedicated country page as well, but they removed it after I submitted the story to jurnos some years ago. But did they leave it in as an egg so they could sign up as any country they wanted ?
http://setiathome.ssl.berkeley.edu/fcgi-bin/fcgi?
e mail=b_o_l_l_o_x@hotmail.com&cmd=user_statshttp://setiathome.ssl.berkeley.edu/fcgi-bin/fcgi?
c md=view_feedback&id=6664 -
seti@home easter egg
Theres a cool easter egg at the seti@home project, you normally get a crappy certificate when you pass a workunit milestone, but if you fuck with the request, you get a funky kang and kronos (from simpsons) one....
example Normal cert: http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?ema il=seti@sun.com&cmd=print_cert&certnum=10000&size= 0
example easter egg cert: http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?ema il=seti@sun.com&cmd=print_cert
well...i found it funny :op -
seti@home easter egg
Theres a cool easter egg at the seti@home project, you normally get a crappy certificate when you pass a workunit milestone, but if you fuck with the request, you get a funky kang and kronos (from simpsons) one....
example Normal cert: http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?ema il=seti@sun.com&cmd=print_cert&certnum=10000&size= 0
example easter egg cert: http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?ema il=seti@sun.com&cmd=print_cert
well...i found it funny :op -
Distributed storage
On the internet scale?
Something along these lines? -
Re:OT: Gene Kan
his existence has been expurged? if you're referring to his webpage and, then perhaps it's out of respect for him.
"Folks here at XCF who knew Gene thought that it would be better to make his home page non-public at least for now." -
Wasted CyclesAssuming:
- It's true
- It is a viable product
- reliable drivers become available
- people buy them
I mean, if people can trick the TCP stack into doing distributed math, they can certainly trick these GPUs into doing it to... -
LOGO
After our new logo was featured on Slashdot, we have received a ton of email asking where to obtain a LOGO Interpreter for Linux. This is the LOGO interpreter we used to create our new, um, logo:
ftp://ftp.anarres.cs.berkeley.edu/pub/ucblogo
-OSI Certification Program -
Re:What about the hardware
All 3000+ kanji in japanese and 20000+ in chinese can be input using a keyboard.
well acttually japanese has way more than 3000 but there are 3000 that are the ones you are expected to know from a typical grade school...
my japanese teacher advised everyone is her class to download JWP (japanese word processor)... even though she only cares about what works i found it interesting that this "wappro" is released under the GPL... w00t... i know this is a bit off topic but i can say from personal experiance that it is possible to use a normal english 101/104 keyboiard to type in kanji... i dont use linux for this but im sure there are other that can do it -
Re:nice 64bit
It's not the hardware that is holding back IEEE754 properly, but rather the compilers
According to W. Kahan (one of the fathers of IEEE754) (see this link to PDF article)
"The widest precision thatâ(TM)s not too slow on odayâ(TM)s most nearly ubiquitous âoeWintelâ computers is not double (8 bytes wide, 53 sig. bits) but IEEE 754 double extended or long double (Â10 bytes wide, 64 sig. bits). This is the format in which all local scalar variables should be declared, in which all anonymous variables should be evaluated by default. C99 would permit this (not require it, alas), but â¦Microsoftâ(TM)s compilers for Windows NT, 2000, ⦠disable that format.
Java disallows it.
Most ANSI C, C++ and Fortran compilers spurn it.
( Appleâ(TM)s SANE got it right for 680x0-based Macs, but lost it upon switching to Power-Macs.)"
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Re:proof? yes, of some things
Re, could this be living proof of the evolutionary path that aquatic creatures took to make it to land...?
It's live wiggling proof that intermediate forms exist. An argument sometimes used against Darwinian evolution is that something in between species A and B couldn't compete with the fully functional A creatures now in their prime, nor would it yet have the equipment needed to be a successful B. But this guy looks like he's succeeding quite well as A fish that's Becoming amphibious (given a few tens of millions of years). If that's possible now, why not in the past as well?
Re, ...many millions (billions) of years ago...
Geologic time on a short page
Geologic time on a long page
Links to a lot of geological time charts
This site Precambrian Earth is a red hot mix of geology (from a lot longer ago than our amphibious ancestors) and what might be religion. -
Re:Klein's bottle
I believe Clifford Stoll (of Cuckoo's Egg fame) makes them out of glass. See www.kleinbottle.com.
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for secure FTP, try SafeTPMy company's IT department is trying to set up secure FTP with a vendor
To secure FTP traffic, I highly recommend SafeTP from the folks at Berkeley. SafeTP is an RFC 2228 compliant FTP Security Extension that uses Public Key Crypto to authenticate and secure the link.
SafeTP is supported under Unix / Linux as well as Windows 95/98/ME/NT/2000/etc. Source code for Unix and compiled code for Windows is available free of cost.
This quote from the Berkeley folks may be useful:
How is SafeTP better than existing FTP systems?
First and foremost, SafeTP secures the FTP control channel to ensure the privacy of the user password, thereby providing secure authentication. This in itself is a huge improvement over the traditional FTP protocol, which sends user passwords (and everything else) in the clear (see RFC 959).
SafeTP protects the control and data channels against a number of attacks, including eavesdropping attacks, modification attacks, and replay attacks. SafeTP provides this security through a public-key crypto-system based on the ElGamal, DSA and TripleDES security algorithms, and is implemented as an RFC 2228 security mechanism. The security negotiation is similar to the one used by ssh and SSL - see the X-SafeTP1 protocol specification for details.
SafeTP has several advantages over most existing FTP security systems (such as kerberos or ssh tunnelling):- Transparent - the windows client automatically and transparently secures FTP connections from within the OS - which means the user can continue using their favorite FTP client, without ever having to think about it again. No need to tweak any settings in their client, no need to setup any tricky proxy or port forwarding software.
- Interoperable - the client software (windows and UNIX) automatically works with both secure and insecure (legacy) servers. The server software always accepts secure connections, and can be configured to allow or disallow insecure connections.
- Data security and integrity configuration - SafeTP always secures the control channel (which includes the username/password login sequence), but the client can be configured to provide privacy, integrity and authentication for the transferred file data as well. The user may also choose to disable data encryption to maximize performance.
We have found SafeTP to be both user friendly and expert friendly. We have been successfully using it now for several years. It works well behind firewalls. The code is both well written and stable.
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for secure FTP, try SafeTPMy company's IT department is trying to set up secure FTP with a vendor
To secure FTP traffic, I highly recommend SafeTP from the folks at Berkeley. SafeTP is an RFC 2228 compliant FTP Security Extension that uses Public Key Crypto to authenticate and secure the link.
SafeTP is supported under Unix / Linux as well as Windows 95/98/ME/NT/2000/etc. Source code for Unix and compiled code for Windows is available free of cost.
This quote from the Berkeley folks may be useful:
How is SafeTP better than existing FTP systems?
First and foremost, SafeTP secures the FTP control channel to ensure the privacy of the user password, thereby providing secure authentication. This in itself is a huge improvement over the traditional FTP protocol, which sends user passwords (and everything else) in the clear (see RFC 959).
SafeTP protects the control and data channels against a number of attacks, including eavesdropping attacks, modification attacks, and replay attacks. SafeTP provides this security through a public-key crypto-system based on the ElGamal, DSA and TripleDES security algorithms, and is implemented as an RFC 2228 security mechanism. The security negotiation is similar to the one used by ssh and SSL - see the X-SafeTP1 protocol specification for details.
SafeTP has several advantages over most existing FTP security systems (such as kerberos or ssh tunnelling):- Transparent - the windows client automatically and transparently secures FTP connections from within the OS - which means the user can continue using their favorite FTP client, without ever having to think about it again. No need to tweak any settings in their client, no need to setup any tricky proxy or port forwarding software.
- Interoperable - the client software (windows and UNIX) automatically works with both secure and insecure (legacy) servers. The server software always accepts secure connections, and can be configured to allow or disallow insecure connections.
- Data security and integrity configuration - SafeTP always secures the control channel (which includes the username/password login sequence), but the client can be configured to provide privacy, integrity and authentication for the transferred file data as well. The user may also choose to disable data encryption to maximize performance.
We have found SafeTP to be both user friendly and expert friendly. We have been successfully using it now for several years. It works well behind firewalls. The code is both well written and stable.
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for secure FTP, try SafeTPMy company's IT department is trying to set up secure FTP with a vendor
To secure FTP traffic, I highly recommend SafeTP from the folks at Berkeley. SafeTP is an RFC 2228 compliant FTP Security Extension that uses Public Key Crypto to authenticate and secure the link.
SafeTP is supported under Unix / Linux as well as Windows 95/98/ME/NT/2000/etc. Source code for Unix and compiled code for Windows is available free of cost.
This quote from the Berkeley folks may be useful:
How is SafeTP better than existing FTP systems?
First and foremost, SafeTP secures the FTP control channel to ensure the privacy of the user password, thereby providing secure authentication. This in itself is a huge improvement over the traditional FTP protocol, which sends user passwords (and everything else) in the clear (see RFC 959).
SafeTP protects the control and data channels against a number of attacks, including eavesdropping attacks, modification attacks, and replay attacks. SafeTP provides this security through a public-key crypto-system based on the ElGamal, DSA and TripleDES security algorithms, and is implemented as an RFC 2228 security mechanism. The security negotiation is similar to the one used by ssh and SSL - see the X-SafeTP1 protocol specification for details.
SafeTP has several advantages over most existing FTP security systems (such as kerberos or ssh tunnelling):- Transparent - the windows client automatically and transparently secures FTP connections from within the OS - which means the user can continue using their favorite FTP client, without ever having to think about it again. No need to tweak any settings in their client, no need to setup any tricky proxy or port forwarding software.
- Interoperable - the client software (windows and UNIX) automatically works with both secure and insecure (legacy) servers. The server software always accepts secure connections, and can be configured to allow or disallow insecure connections.
- Data security and integrity configuration - SafeTP always secures the control channel (which includes the username/password login sequence), but the client can be configured to provide privacy, integrity and authentication for the transferred file data as well. The user may also choose to disable data encryption to maximize performance.
We have found SafeTP to be both user friendly and expert friendly. We have been successfully using it now for several years. It works well behind firewalls. The code is both well written and stable.
-
for secure FTP, try SafeTPMy company's IT department is trying to set up secure FTP with a vendor
To secure FTP traffic, I highly recommend SafeTP from the folks at Berkeley. SafeTP is an RFC 2228 compliant FTP Security Extension that uses Public Key Crypto to authenticate and secure the link.
SafeTP is supported under Unix / Linux as well as Windows 95/98/ME/NT/2000/etc. Source code for Unix and compiled code for Windows is available free of cost.
This quote from the Berkeley folks may be useful:
How is SafeTP better than existing FTP systems?
First and foremost, SafeTP secures the FTP control channel to ensure the privacy of the user password, thereby providing secure authentication. This in itself is a huge improvement over the traditional FTP protocol, which sends user passwords (and everything else) in the clear (see RFC 959).
SafeTP protects the control and data channels against a number of attacks, including eavesdropping attacks, modification attacks, and replay attacks. SafeTP provides this security through a public-key crypto-system based on the ElGamal, DSA and TripleDES security algorithms, and is implemented as an RFC 2228 security mechanism. The security negotiation is similar to the one used by ssh and SSL - see the X-SafeTP1 protocol specification for details.
SafeTP has several advantages over most existing FTP security systems (such as kerberos or ssh tunnelling):- Transparent - the windows client automatically and transparently secures FTP connections from within the OS - which means the user can continue using their favorite FTP client, without ever having to think about it again. No need to tweak any settings in their client, no need to setup any tricky proxy or port forwarding software.
- Interoperable - the client software (windows and UNIX) automatically works with both secure and insecure (legacy) servers. The server software always accepts secure connections, and can be configured to allow or disallow insecure connections.
- Data security and integrity configuration - SafeTP always secures the control channel (which includes the username/password login sequence), but the client can be configured to provide privacy, integrity and authentication for the transferred file data as well. The user may also choose to disable data encryption to maximize performance.
We have found SafeTP to be both user friendly and expert friendly. We have been successfully using it now for several years. It works well behind firewalls. The code is both well written and stable.
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Use of color
Unfortunately the system doesn't appear to be able to tell the operator that red links on green background are very difficult to read!
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Re:The next RembrandtI have been moded down for the parent post, so apparently my comment is subject to misinterpretation as making fun of the blind. I don't care about the former (as I have reached the karma cap), but the latter bothers me, so I suppose I should explain myself.
I simply meant that Mr. James Landay was grossly overselling the capabilities of this new drawing tool. If I hadn't actually seen the art that had been produced by the tool, his description would have led me to believe it looked more like this or this.
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The next Rembrandt
One man blind since birth drew a side view of a car that's as good as anything I could draw!
Really? This is the best you could draw? -
Additional Coverage
Contra Costa Times
UCB Campus News
I'm a UCB physics grad student. The primary motivation for the sale isn't to make money or make room for new gear. They actually have to do it because the part of the physics building is scheduled for a seismic retrofit, and the temporary building can't accommodate all the old stuff in the attics.
Some material will be kept for display and for gifts to retiring faculty. -
Re:MBone
Whoops. I even previewed. BMRC
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Re:Animals can see TV?Searching the internet, I found a computer graphics lecture about color spaces that explains what I'm talking about, sort of. Combing low and high frequency waves does not give you a medium frequency wave, but it might give you light with the same color as medium frequency light. No doubt we knew of the primary colors before we knew of rods and cones, but those colors merely appear to be primary because they are the ones are rods and cones are sensitive to.
The part of the lecture that applies to my question is the part where different spectral energy distributions produce the same color--which opens the possibility that non-human could percieve two lights that humans believe are the same color as two different colors.
I recall sometime ago an article linked to from slashdot suggesting it may be possible some women have a fourth primary color in their eyes. Certainly it's not difficult to imagine some animals are more sensitive to infra-red ultra-violet lights than humans--in which case the light shown by our visible light tv's would certainly look different than the light an animal would see in the real world.
Wait a minute, I'm an idiot. Obviously color has nothing to do with animals and humans detecting black vs. white things. AND PANDAS ARE BLACK AND WHITE!! Therefore, of course color is not needed in these sex education films...
Then again, if Panda color perception is different from human color perception, maybe pandas don't see themselves as black and white...
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A simple plea...
Please, everyone stop looking for ET or cures for cancerand instead use distributed network computing power to search for a cure for stupidity!!!
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It can probably be done, but not profitably.It's not something to do for performance.
Implementing a stack-based machine in hardware is straightforward, and has been done many times. The first one was the English Electric Leo Marconi KDF9, in 1958. Burroughs followed, and thirty years of Burroughs stack machines were sold. Java has a small implementation of the Java engine in hardware. Forth chips have been manufactured.
But all these machines have used sequential execution - one instruction at a time. Nobody has yet built a stack machine with out-of-order execution. There's been a little research in this area. Sun's picoJava II machine has some paralellism in operand fetches and stores. But nobody has wanted to commit the huge resources needed to design a new type of superscalar processor. The design team for the Pentium Pro, Intel's first superscalar, was over 1000 people. And that architecture (which is in the Pentium II and III) didn't become profitable until the generation after the one in which it was first used.
In the end, a superscalar stack machine probably could be designed and built with performance comparable to high-end register machines. For superscalar machines, the programmer-visible instruction set doesn't matter that much, which is why the RISC vs. CISC performance debate is over. But so far, there's no economic reason to do this. Sun perhaps hoped that Java would take off to the point that such machines would make commercial sense. But it didn't happen.
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Re:Gridcomputing sitesSo are you talking rubbish as well?
Probably 8*), no offense taken and I hope, none given!
However this is a problem, people sometimes don't realise that there are different types of supercomputing problem which need to be approached in different ways. (I assume you do but some posters may not).
There are some problems, such as Seti@Home which are suitable for computation in a widely distributed environment. Each SETI Unit doesn't rely on any other to be analysed so it doesn't matter if it takes a long time to communicate between processors (if at all). Others, such as weather simulations require high speed, high bandwidth communication between each processor. In these cases even a Beowulf cluster is going to have far too little bandwith to be useful. This was the point I was trying to put accross. Grids are great for many things, however I'd still want a supercomputer for some problems.
I see it as a parallel evolution between the two methods. Supercomputers to give us the hardware, Grid systems to provide the software & make use of the hardware when it becomes affordable.
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UC Berkeley DeCal
For any of you out there who might be UC Berkeley students there will be a decal offered next semester in which we will build a team to play in the Simulation league. It'll be focused on developing the AI needed to do something like play soccer and should be a lot of fun. Watch the decal page for more info.
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Seti@home vs Earth Simulator
It's interesting to note that SETI@Home maintained a >39 TeraFLOP rate over the last 24 hours according to their web page. The earth simulator is aiming for 40.
I know this isn't strictly an apples-to-apples comparison by a long shot but it's kind of fun to compare the two numbers.
-- Ken -
Re:YaySeti@Home uses data from the Arecibo radio telescope, not the VLA.
At least flame the right radio telescope.
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Re:Yay
Maybe I'm being trolled
:-), but this isn't the same thing as SETI@home , just because the VLA is a radio telescope.Radio astronomy lets us study objects like supernova remnants and the interstellar medium (and hence star-birth and star-death), or active galaxies such as quasars, and the big cosmological questions about the origin of the universe.
The VLA is no more 'looking for aliens with radios' than optical telescopes are 'looking for aliens with flashlights'.
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Solution: Decentralized Collaborative Filters
Collobarative Recommendations such as Amazon.com uses, (or Eigentaste or RecTree in academia) finally have algorithms that make it fast enough for an average PC to perform the operations. A decentralized version would not only foil spoofing and spamming, but would let you discover new things beyond the industry marketing machine. Does anyone have information on such work?
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MIDI or OSC?
I can't read the article (not going to register) but it seems like all you guys are saying it's not possible with MIDI... yeah, of course it isn't. But if they replacing MIDI with a more flexible system like OSC, then it's totally possible. It seems like they have developed something similarly flexible with Disklavier so all the nuance and such will be included.
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Some technical links
Here is basic description of the process.
For more detail minded folks, here is a feasibility report and a technical report on a prototype field test. -
Some technical links
Here is basic description of the process.
For more detail minded folks, here is a feasibility report and a technical report on a prototype field test.