Domain: huji.ac.il
Stories and comments across the archive that link to huji.ac.il.
Comments · 103
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Re:...poor-quality source with undisclosed bias...
You need to learn about human dignity because it is the core of German law and the foundation for the valid definition of hate speech.
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Re:hell, a complete OS os smaller than most PDFs
I wonder how blazingly fast a 4MB OS is on 4GHz machine with GBs of RAM. The CPU could process the entire OS in less than a millisecond.
1. Unfortunately, there's no 64-bit version, so your GBs of RAM are likely to be useless.
2. It's still a traditionally-designed[*] microkernel, with the high frequent task switching overhead that implies, so performance isn't great. It is, however, *consistent*, which is of course the most important thing for many applications.[*] There are a number of tricks to avoid task switching overhead in a microkernel OS. QNX predates the development of any of them, and hence has poor IO performance. See, for example, the networking subsystem benchmarks here, which show that Linux can clearly outperform QNX on a 100Mbit network (reaching peak throughput of 80Mbps, compared to QNX's of around 68Mbps). I can't find any recent hard disk performance benchmarks anywhere, but I'm willing to bet Linux outperforms QNX on disk IO by a higher margin still.
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Re:Not exactly a new concept
Googling "Ice Ages coincide with the passage of the Solar System through the spiral arms of our galaxy" retrieves you a lot of links. See for instance the first lines of these two:
http://www.phys.huji.ac.il/~shaviv/articles/ShavivChapter.pdf
http://arxiv.org/ftp/arxiv/papers/0906/0906.2777.pdf (2009)
Many more there, such as this on dinosaur extinction:
http://www.dinosaurhome.com/root-causes-of-extinction-events-219.html -
WGET? The Devil's Tool!
Lee added that the Scripps Hackers eventually used Wget to find and download "the Companies' confidential files." (Wget was the same tool used by Facebook's Mark Zuckerberg in the film The Social Network to collect student photos from various Harvard University directories.) The rest of the letter pretty much blamed the "Scripps Hackers" for the cost of breach notifications, demanded Scripps hand over all evidence as well as the identity and intentions of the hackers, before warning that Scripps will be sued.
Folks, there was a big bad security breach. Now, *adjusts his massive belt buckle* we're investigating this like we would any other serious crime. And right now we're just trying to identify weapons used in this heinous attack. Now, we've discovered that the hackers were using a very vicious mechanism in this attack. In a murder, you might find a revolver used to put two bullets into the back of a poor old defenseless lady's skull in order to get all her coupons and a couple of Indian head pennies out of her purse. Or perhaps in a pedophile case, you'll find the "secret candy" that was used to lure the children into a white panel van with painted over windows.
*expels a long tortured sigh*
Well, I gotta say, in my thirty years on the force, I wish we were only dealing with something like that today, honest to God Almighty I really do. Instead this artifact was discovered at the scene of the crime. Now, I'm not asking you to understand that -- hell, I'd warn you against even openin' up your browser to the devil's toolbox. But let me, a trained law enforcement professional, take the time to explain the gruesome evidence just one HTTP request away from you and your chillun'. The page is black. Black as a moonless night sky when raptors swoop from the murky inky nothing to take your kids and livestock back up with them silently. On it is a bunch of white text that makes no sense to any God fearun' man on this here Earth. That's what they call a "man page" probably because it is the ultimate culmination of man's sin and lo and behold it displays a guide to exact torture on innocent web servers across this great and holy internet.
Even if you want to use this "man page" for WGET to learn how to use Satan's server scythe, you would have to read through almost twenty pages of incomprehensible technobabble like what that kraut over in Cali -- the one who took his wife's life -- spoke. And if you want to just see an example, it's not at the top! No, why, it's all the way down at the bottom. For this one, they don't even have examples. Just enough options to kill a man. Probably gave Steve Jobs cancer, they never proved all these options in these pages didn't. Buried in the mud of a thousand evils lie more evils.
And why, oh why are we even wasting taxpayer money on these Scripps Journos? Who needs a trial when the evidence is in the tools they used? Folks, I think it's time we WGET one last thing, I'll WGET a rope and you WGET your pitchforks and torches ... let's go down to Scripps and put all this computer business behind us. Okay? -
Not a new thing
I remember reading about this technology 10 years ago: http://www.phys.huji.ac.il/~springer/DigitalNeedle/
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Re:not just software.. my wetware is confused too
Of course, there's an updated version of it, starring Dubja and Condi.
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Re:So,
Oops. Added hotlinks.
The whole paper is available on the Consciousness Lab site for free.
Link: http://labconscious.huji.ac.il/wp-content/uploads/2012/11/Sklar_etal_2012_PNAS_Reading_Math.pdf
Main site: http://labconscious.huji.ac.il/
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Re:So,
Oops. Added hotlinks.
The whole paper is available on the Consciousness Lab site for free.
Link: http://labconscious.huji.ac.il/wp-content/uploads/2012/11/Sklar_etal_2012_PNAS_Reading_Math.pdf
Main site: http://labconscious.huji.ac.il/
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Re:Where's Jesus?
Regarding your assertion of appropriate expectation of references to Jesus given the timeframe of the Dead Sea Scrolls, could you provide your relative qualifications on the matter relative to this organization?
Such as, say, the number of international symposia on the subject of the Scrolls you have hosted?
TIA. -
Re:Record players
A true geek finds a workaround!
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Scan the record
Back in 2002, Slashdot linked to a guy who experimented with scanning a record and reconstructing the audio.
I wonder if this would work even better using structured light, or maybe illumination with different wavelengths from different directions.
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My opinion: Probable fraud.
FRAUD ALERT! Slashdot sometimes carries stories about Israeli companies looking for investors. Is someone at Slashdot being paid to run those stories?
This comment, at present attached to the story linked by Slashdot, explains the fraud:
"By WCoenen on Jun 20, 2010
The energy extracted from this battery actually doesn't come from the potatoes, but from the corrosion of the electrodes. So it only recovers a fraction of the energy that was necessary to produce the metal from ore. Not exactly an efficient way to store power, and a terribly stupid way to use expensive metals!"
That comment links to this explanation: Yes, you can get energy from an "Earth Battery". No, it ain't free.
The story amazes and shocks me. I guess there are people at the Hebrew University of Jerusalem who know the story is a sneaky lie. Are they arrogant and believe only they will know the truth? Do they want to steal investment money from Slashdot readers?
The Jewish culture has a 3,000 year history of making itself unpopular. Jews are even unpopular with each other. Read the story. It is an example of Jews being seriously anti-Jewish. "The parents follow strict religious codes and do not allow influences such as ... the internet in their homes." -
Re:Wait a second....
What did you expect would happen, people would start buying vinyl records, but just look at them instead of playing them? Is there some iPhone vinyl add-on I'm not aware of?
Maybe from the author of Digital Needle ?
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no point in getting rich
This is one of the more peculiar forms of populist ideology: I can't think of anything the average American understands less well than wealth.
Pareto distribution
New evidence for the power-law distribution of wealthGetting rich in America obviously means adding another zero. Does it really need to be an exponential feedback relationship to get an enterprising American (or Brit) off the couch? A linear feedback relationship couldn't achieve the same purpose? Why not? How about a slightly smaller power-law coefficient? No chance?
At what magnitude does the power-law wealth coefficient cease to be about entrepreneurial motive, and instead become more about power elites? Anyone in America interested in funding a study to determine this? Hmmm, no one with enough money to fund this wants to know the answer.
Excess concentration of wealth hasn't been a complete disaster over the past 100 years. You can argue the merits: we have in fact enjoyed a spectacular rise in wealth pretty much all around, if you look at it through lenses with a logarithmic slant.
Hans Rosling: Let my dataset change your mindset
One can argue it has been a complete disaster, lately. When the elites bungle, we all pay. Kinda sucks as a system, actually.
If you go back 100 years, there were many untapped resources, it was a growth scenario. For the next 100 years we'll have to work very hard to relearn our current standard of living with respect to an increasingly finite resource base.
But oh no, even a sensible initiative--which is likely nothing but a good thing in terms of managing California's over stressed electrical grid--is going to put an imperceptible dent in our precious exponential wealth incentive coefficient. How will we ever live?
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Re:Sure. 1000 years.
doing the same for a vinyl disc would be a stretch at present, but probably not ten years from now.
You might be interested in this, which is about seven years old and details someone scanning and (somewhat) successfully retrieving sound from vinyl. The quality is poor, but he did it in a few nights and without any info on the technical specs of the media; obviously a future archaeologist may well be without the datasheets for DVD technology, but there's every chance they'll also spend more time on the project.
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Re:Convert ALL data into wireframe models NOW!
It has already been done:
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Re:Convert ALL data into wireframe models NOW!
http://www.cs.huji.ac.il/~springer/ It's already done
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Re:Agreed on finding a drive
What are the chances someone could hack themselves a disk drive that could read these? It seems like it would be possible to rig up some sort of magnetic scanner that could read the analog magnetic domains on the disk, and convert that to data in software. I'm sure it would take some crazy engineering, and it's probably not worth doing, but it at least seems plausible.
If this guy can convert an LP to audio with an optical scanner, why not? -
Re:Try harder
A CD is laughably simple technology, an engineer 100 years from now will build a player (in a way that may not look anything like our current players) in no time at all.
You ain't kidding. -
hopefully this time they will stay aroundThe original Drumm train was constructed in the Great Southern Railways workshops at Inchicore. The weight of the train with passengers was about 85 tons. There was seating accommodation for 140 passengers. The train could accelerate from standstill at about 1 m.p.h. per second and attain speeds of 40 to 50 m.p.h. with ease. The train was fitted with a successful system of regenerative braking, whereby an important fraction of the energy surge made available on a down-gradient or on de-accelerating at a station was returned to the battery. The Drumm Battery train operated successfully on the Dublin to Bray section of the line with occasional runs to Greystones some five miles farther on, from 1932 to 1948. As passsenger numbers increased two pairs of power units were joined under the control of one driver and later a specially wired coach was put between the two trains bringing its capacity up to 400 passengers. By 1939, four Drumm trains had been built but it became impossible to secure orders and raw material once the World War 11, 1939-1945, broke out. The Drumm Battery Company folded in 1940. The outbreak of the war made the Drumm trains invaluable as coal for steam engines was in short supply and inferior. With the war over, it was decided in 1949 to scrap the Drumm trains at a time when the promise of diesel locomotives pointed to the end of the steam era. The Drumm trains, minus their batteries were sometimes used as ordinary coaches. http://chem.ch.huji.ac.il/history/drumm.html
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vector machines in the top500 list refuse to die
There's an interesting paper that analyzes the data accumulated in the top500 list site, which ranks the 500 most powerful supercomputers twice a year: it shows that, over time, the share of vector machines within the list is sharply declining, both in aggregated power and in number: from around 60% in 1993 to around 10% in 2003 (see Figure 3, page 6, in said paper). Still, vector machines refuse to die and always seem to maintain a presence in the top500, as is evident from the above slashdot post. Will vector machines live forever?
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Slashdot 2002.... Not a laser, but it is optical..
Digital Needle -- http://www.cs.huji.ac.il/~springer/
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Re:Yawn
Apparently it's more effective than the other system I heard about that does that.
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Re:Fixed recently in Linux
iabervon (1971) said:
Anonymous Cowered said:
They took too long to publish this. Linux 2.6.21 (released in April) added support for using one-shot timers instead of a periodic tick, so it avoids the problem like OS X does ... The CFS additionally removes the interactivity boost in favor of giving interactive tasks no extra time but rather just quick access to their available time, which is what they really benefit from.
from reading the CFS documentation, I suspect Ingo read (or at least heard) of this paper, which is available on-line for more than a year according to one of the comments above. this is probably what Ingo means by saying "the CFS scheduler is not prone to any of the 'attacks' that exist today" see http://kerneltrap.org/node/8059
Also, as was pointed out above, the paper was available on-line (in the form of a technical report) a year before the first version of Ingo's CFS and the tick-less patch. It often takes some time to publish a scientific paper, and there's nothing you can do about that.iabervon (1971) said:
Anonymous Cowered said:
On the linux-kernel mailing list, there was a lot of discussion of patterns that cause bad scheduling decisions with various schedulers, generally focused on making test cases for interactivity problems for workloads people had seen. Since the authors of the paper got their initial hint from having problems with a particular real load, this and the work that Ingo is referring to independantly encountered the same issues.
Perhaps you are right, but AFAIK, the LKML doesn't contain any mention of a systematic "attack": Much like the initial hint upon which the paper is apparently based, the workloads that are described in the LKML discussions are "legitimate", in that no application is doing anything malicious. (Also note that process hiding is never discussed.) So the fact Ingo chooses to use the term "attack" in this context suggests he knows something that was not mentioned in the LKML. -
Re:Old news
Publishing papers takes a lot of time, as anybody who ever done it would know... For example, the post you mention is from Feb 2007. By then, according to the usenix-security call for papers, the paper has already been submitted. Also, google-ing "cheat" around revealed this technical report: http://leibniz.cs.huji.ac.il/anon?View=1&num=1&pi
d %5B1%5D=870&abstract=1 (seems the initial version of the paper) which is dated May 2006. -
Nir J. Shaviv
Here's a nice "Cosmic Rays and Climate Change for Dummies" article that has pretty pictures and graphs. At least give it a read before dismissing this. I found it compelling.
http://www.sciencebits.com/ice-ages
more on the climate debate: http://www.sciencebits.com/ClimateDebate/
Shaviv's personal site: http://www.phys.huji.ac.il/~shaviv/ -
Re:Bogus statistics
Here is an example of the sort of research I was talking about.
(Although the idea I was getting at included other methods of control, such as additional subjects) -
Re:You can do it with a scanner...
That would be this guy:
http://www.cs.huji.ac.il/~springer/
However that was extremely experimental and not what anyone would call even medium quality.
Of more interest is the research being done by the library of congress and the Berkeley physics department.
http://www.primidi.com/2004/04/19.html
They discovered you can use the same methods used in the discovery of the Higgs Boson particle to scan cylinder recordings which are too brittle to be played by traditional means. The results of those experiments are pretty astounding.
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Re:How is that any different...
well, there was an article posted on slashdot a couple of years ago about ripping vinyl with a scanner. I'm sure a team of determined hackers could refine the technology so that it would be easily usable.
Of course then they would outlaw cameras and scanners as "circumvention devices". -
Re:My solution
But you don't have to compress the full dynamic range just part of it (if you want that sort of pictures) or use "smart" compression that preserves contrast between objects in the image while extending the visible dynamic range (see http://www.cs.huji.ac.il/~danix/hdr/results.html)
. Also, having the "same" image with different exposures allows you to render an image that has as little under and/or over exposure as possible (see http://www.openexr.com/samples.html). -
Original press release--answers many questions
http://www.huji.ac.il/cgi-bin/dovrut/dovrut_searc
h _eng.pl?mesge114907691205976587 It's 2-3 times longer than the wire service story and answers the 'what they're eating' question and others. -
Re:Small sample size?
Well, it's sad that this seems to be quite often the problem with psychological and sociological research. The researchers present groundbreaking results about the human nature and when you look at their methods you find the results are based one nothing more than random results from a much to small sample...
The good old Cargo Cult Science
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Re:Response from a long-haired, bearded techie ...
Exactly the ignorant elitist attitude that will place you near the top of the list when it's time to lay a few people off.
Maybe you aren't aware of this but there are things this in this world that can't be done by just anybody. Brain surgery, pro-sports, quantum physics research, etc.
It's a simple fact of the world that not everyone can do these things. Recognizing that you are one of these people and expecting not to jerked around is not elitist, it's basic self respect.
Fact of the matter is that management needs tech and tech needs management, but neither needs arrogant know-it-alls like you.
I don't think you get it. TFA is basically calling people unprofessional because they don't dress a certain way.
THAT'S arrogant and elitist. It's the damn definition of arrgant and elitist.
I'll give you an example from them past:
an interesting anecdote, as told by Charles M. Vest, President of the Massachusetts Institute of Technology, during commencement on June 4th, 1999. "In the early years of this century, Steinmetz was brought to General Electric's facilities in Schenectady, New York. GE had encountered a performance problem with one of their huge electrical generators and had been absolutely unable to correct it. Steinmetz, a genius in his understanding of electromagnetic phenomena, was brought in as a consultant - not a very common occurrence in those days, as it would be now. Steinmetz also found the problem difficult to diagnose, but for some days he closeted himself with the generator, its engineering drawings, paper and pencil. At the end of this period, he emerged, confident that he knew how to correct the problem. After he departed, GE's engineers found a large "X" marked with chalk on the side of the generator casing. There also was a note instructing them to cut the casing open at that location and remove so many turns of wire from the stator. The generator would then function properly. And indeed it did. Steinmetz was asked what his fee would be. Having no idea in the world what was appropriate, he replied with the absolutely unheard of answer that his fee was $1000. Stunned, the GE bureaucracy then required him to submit a formally itemized invoice. They soon received it. It included two items: 1. Marking chalk "X" on side of generator: $1. 2. Knowing where to mark chalk "X": $999."
Time is not on your side. A more polite and still smart and pleasant to be around kid will soon replace you. Sure they will need some training and education that comes with experience, but the benefits to the management, that you are so quick to insult, of this new fresh blood out weigh your value.
You wish. Senior technical people make good money for good reason. They've been around enough to have enough real world experience not to make REALLY costly mistakes on their employer's time. And contrary to certain people's beliefs education doesn't stop when you get your B.S.
It would also be nice if you could understand that HIS COMMENTS WERE ONLY DIRECTED AT THOSE JUDGING HIM BY HIS APPEARANCE. He's right. Those guys are jerks. He doesn't want to work for them, nor do I.
If you're making technical decisions based on how people dress, you are incompetent and not worthy of respect. It's not that you need to know everything I do to be respected, you just need to not be an asshole.
Ask enough people for "executive summaries" until you know enough not to make silly, arbitray decisions. Do your damn job right and people will respect you. People DIE beacuse of managers like that making bad decisions on critcal projects. (People do not die because an engineer wore a t-shirt to work.) -
Re:Patenter VS Inventor, it is a question of fame
Meucci apparently had a working telephone years earlier. You can read an interesting account of his life and research here.
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Johann Philip Reis - 10 years before Bell
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Re:FreeRisk? Google Maps? Why not the Blue Marble?I mean, do you think Edison wouldn't have invented the lightbulb if there hadn't been IP laws in place back then? (I'm not sure if there were, but I highly doubt they would have made much of a difference either way)
There were, and they did. Edison was sued by Joseph Swan, who had already invented the lightbulb, but AFAIK had not entered the American market, so Edison may have been unaware of this. The legal trouble was ended by a merger between the Edison and Swan companies, allowing money to be made on both sides of the Atlantic.
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Slightly different tack---HDR Compression?
Anyone here familiar with Gradient Domain High Dynamic Range Compression? Truly stunning imagery, but I've been having a bitch of a time actually trying to code the given algorithm. I don't suppose someone else already has? The examples look truly, truly fantastic.
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Use a Scanner
Not as impressive as the LP Ripper using a scanner.
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Re:Get them young huh?
Sorry, but that's not logically true. Ruth Lawrence was 13 when she received a first-class degree with maths from Oxford Univerity (more at http://news.bbc.co.uk/onthisday/hi/dates/stories/
j uly/4/newsid_2492000/2492853.stm, and you can view her webpage at http://www.ma.huji.ac.il/~ruthel/). Is your reaction to think "gee, well, those Oxford maths exams must be easy"?
P.
http://oceanclub.blogspot.com/ -
How appropriate..An article about the benefits of spam..
And I just finished reading the Richard Feynman article on Cargo Cult Science.
Article Text below as slashdotting prevention:
Cargo Cult Science
Richard Feynman
From a Caltech commencement address given in 1974. Also in Surely You're Joking, Mr. Feynman!
During the Middle Ages there were all kinds of crazy ideas, such as that a piece of of rhinoceros horn would increase potency. Then a method was discovered for separating the ideas--which was to try one to see if it worked, and if it didn't work, to eliminate it. This method became organized, of course, into science. And it developed very well, so that we are now in the scientific age. It is such a scientific age, in fact, that we have difficulty in understanding how witch doctors could ever have existed, when nothing that they proposed ever really worked--or very little of it did.
But even today I meet lots of people who sooner or later get me into a conversation about UFO's, or astrology, or some form of mysticism, expanded consciousness, new types of awareness, ESP, and so forth. And I've concluded that it's not a scientific world.
Most people believe so many wonderful things that I decided to investigate why they did. And what has been referred to as my curiosity for investigation has landed me in a difficulty where I found so much junk that I'm overwhelmed. First I started out by investigating various ideas of mysticism and mystic experiences. I went into isolation tanks and got many hours of hallucinations, so I know something about that. Then I went to Esalen, which is a hotbed of this kind of thought (it's a wonderful place; you should go visit there). Then I became overwhelmed. I didn't realize how MUCH there was.
At Esalen there are some large baths fed by hot springs situated on a ledge about thirty feet above the ocean. One of my most pleasurable experiences has been to sit in one of those baths and watch the waves crashing onto the rocky slope below, to gaze into the clear blue sky above, and to study a beautiful nude as she quietly appears and settles into the bath with me.
One time I sat down in a bath where there was a beatiful girl sitting with a guy who didn't seem to know her. Right away I began thinking, "Gee! How am I gonna get started talking to this beautiful nude woman?"
I'm trying to figure out what to say, when the guy says to her, "I'm, uh, studying massage. Could I practice on you?" "Sure," she says. They get out of the bath and she lies down on a massage table nearby. I think to myself, "What a nifty line! I can never think of anything like that!" He starts to rub her big toe. "I think I feel it," he says. "I feel a kind of dent--is that the pituitary?" I blurt out, "You're a helluva long way from the pituitary, man!" They looked at me, horrified--I had blown my cover--and said, "It's reflexology!" I quickly closed my eyes and appeared to be meditating.
That's just an example of the kind of things that overwhelm me. I also looked into extrasensory perception, and PSI phenomena, and the latest craze there was Uri Geller, a man who is supposed to be able to bend keys by rubbing them with his finger. So I went to his hotel room, on his invitation, to see a demonstration of both mindreading and bending keys. He didn't do any mindreading that succeeded; nobody can read my mind, I guess. And my boy held a key and Geller rubbed it, and nothing happened. Then he told us it works better under water, and so you can picture all of us standing in the bathroom with the water turned on and the key under it, and him rubbing the key with his finger. Nothing happened. So I was unable to investigate that phenomenon.
But then I began to think, what else is there that we believe? (And I thought then about the witch doctors, and how easy it would have been to check on them by noticing that nothing really worked.) So I found things that even mor
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Re:A few questions...There's an interesting paper on how to do SVD-correspondence for (corner-)features.
One can determine optical flow from this and it would be useful for sensing the motion of a flying robot f.e.Another interesting paper is about using correlation to estimate speed in an incremental way.
You can see, that the problem gets feasible as soon as you restrict the domain sufficiently. Restricting the domain is crucial in computer-vision. Otherwise you'll end up searching for the holy grail of computer-vision
;-) -
Prior artThe plasmid is inserted into a cell, and "the cell then executes the set of instructions."
Wow, sounds like the end of life as we know it.
it might be used in three to five years to make devices that could detect bioterrorism chemicals.
Yeah, did I tell you about my DNA-based Cellular Autonomous Terminator ? It's very good at searching&destroying living organisms, and it already has a stealth mode, night vision and laser-based target designation. Gimme funding and I'll see what I can do about homeland security.
another team led by Weiss showed they could insert DNA into cells to make them behave like digital circuits.
OK, now that sounds interesting. But the March 8 paper is about robustness of feedback loops in biological systems. Directed evolution of a genetic circuit does have logic gates though.
But we don't need life to produce nice regular chemical patterns. See e.g. reaction-diffusion systems. The whole point of synthetic biology would be self-assembly self-replication. So wake me up with sexy headlines when we know how to compile some Turing-complete language to DNA.
Until then, editors should have a rule about anti-terror plugs in articles, e.g. "three times and you're out".
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Re:TBS!
If you RTA, you will see that at least some of the video clips have a colorized look to them.
The toddler one looks the most normal to me. The Crater Lake one has the most obviously colorized look.
It may have to do with the particular colors they chose to fill in areas. Also, coloring in a distant view of a landscape must still be very difficult. Imagine filling in a field of wildflowers, or a view of the fall foliage of deciduous trees. -
Scannable?
Now the question is, if you don't have a gramophone, can you read the data with a scanner?
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Re:And typically there are some doubters
Johann Philipp Reis invented the telephone. He build the first working telephone in 1860
He was still several years too late:
http://chem.ch.huji.ac.il/~eugeniik/history/meucci .htmlTherefore, between 1854 and 1855, Meucci established his first telephone link from Esther's room to the basement (where he had a small laboratory) and to a larger laboratory in the yard. To call attention, a traditional (mechanical) call bell was used, its wires running parallel to those of the telephone. Only one instrument was used at each end, that was alternatively brought to the ear or the mouth of the user.
... and ...Meucci tried on the above said link very many kinds of telephones, steadily improving the quality of speech transmission with respect to that of his "static telephone" of 1849 in Havana. He came to satisfactory results around 1857, when he constructed an electromagnetic instrument (Fig. A at left, reproduced from "The Chicago Tribune" of 9 November 1885 ), in which he used a tempered steel bar "M", permanently magnetized, and a many-turns bobbin, both of which he bought from one Charles Chester, a manufacturer of telegraphic instruments in Centre St., New York. The diaphragm of this instrument was either made of a sheet of iron or of a stretched animal membrane bearing a small iron disk glued in the center. The air gap between the diaphragm and the bottom pole of the magnet could be adjusted by means of a screw.
But thanks for playing :-) -
Re:Yeah, except...
And that is where his whole argument falls apart. IANAL, but the first clause is to allow you to take measures to ensure that you can use your legally licensed software when you can't use the original. For example this clause allows you to copy the program from 5.25 inch diskettes to 3.5 inch disks so you can run the program on a machine without a 5.25 Inch disk drive.
His interpretation, brings into question the legality of installing software on a hard drive. He seems to be of the opinion that the physical media is the copyrighted material and that just isn't so.
I did not see any mention in the copyright code detailing restrictions on how you access the copyrighted material. Take a record for instance. The mainstream way to access the sound encoded on the disk is by using a record player. Does that make it illegal to scan your records to play them?
http://www.cs.huji.ac.il/~springer/
In other words, Emulation is in no way restricted by the law he quotes, since we could use the original Cartridge if we had an appropriate reader. This only leaves a question of what the legality of backing up the program. -
Good example: high dynamic range imagingA perfect example of how a very lightweight programmable interface would be really useful: a common problem in digital (and film) photography is limited dynamic range. A scripting interface to a digital camera could help overcome this.
First the problem. Just to give you some walking around numbers, typical desktop displays offer about 7-8 stops of contrast (e.g. 100:1), high-end plasma TV's offer 10 stops (1200:1), typical natural scenes have a dynamic range of about 18 stops, and the human eye, at a single pupil dilation, can appreciate about 17 stops (well matched to natural, sun-illuminated scenes, not by accident!). When you allow for the adjustment of human vision to illumination conditions, the human brain-eye system can appreciate about 30 stops of dynamic range (a factor of 1 billion:1!), from the faintest star to full-on sunlight. Needless to say, it is impossible to come anywhere close to this with consumer imaging technology.
An interesting way to expand dynamic range and alleviate the problem is to take several exposures with an increasing sequence of exposure times. Typically, to maintain focus and field depth, you'd keep the aperture fixed, keep the CCD gain fixed, and only vary exposure time. With a simple programmable interface to a digital camera, you'd be able to roll your own HDR mode, "scripting" the camera to e.g., take a quick succession of 5 frames separated in exposure time by 1 stop, and store them all in an aptly named sub-directory on your flash card. Trivial to implement, if provided the hooks. Combining the 5 exposures with suitable post-processing can then simulate much large contrast than normally available. An example of this technique is here. As it is, we just have to hope the camera manufacturers provide something like this for us (at whatever price point they find compelling).
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Re:XUL links
isn't there an official Javascript reference on the net?
Devedge used to be the place, but AOL seems to have killed it. See bugzilla.mozilla.org #264184. (Their bugzilla doesn't allow referals from slashdot)
Mirrors here:
JavaScript Guide
JavaScript Reference -
Re:XUL links
isn't there an official Javascript reference on the net?
Devedge used to be the place, but AOL seems to have killed it. See bugzilla.mozilla.org #264184. (Their bugzilla doesn't allow referals from slashdot)
Mirrors here:
JavaScript Guide
JavaScript Reference -
Re:Edison? He didnt invent the lightbulb.When people say "Edison invented the light bulb", they mean "invented the oxygen-free sealed glass globe with an incandescent filament inside".
Even on that definition Edison didn't invent the light bulb. Joseph Swan did.
So now we finally have a light bulb. Invented by Edison. In the US.
Nope. So we finally have a light bulb. Invented by Swan. In Britain.