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Escher and Elliptic Curves

melquiades writes "Mathematician Hendrik Lenstra was struck by the blank spot in M. C. Escher's Print Gallery . Why is the spot blank there, he wondered, and what should go in it? Although Escher, who had only a high-school mathematics background, drew the picture by brilliant and methodical intuition, the mathematical machinery underlying the image turned out to be elliptic curves (which come up in factorization, cryptography, and the proof of Fermat's Last Theorem). Lenstra and his colleagues were able to generate several breathtaking possible completions for the missing space. Read the story at the ever-registration-required NYT."

198 comments

  1. mathematics....... by tanveer1979 · · Score: 0, Redundant

    is a subject.. and looking at the webpage, I think thats all I know about mathematics! Whoa

    --
    My Aurora : http://www.youtube.com/watch?v=o91ZsGwJYyg
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  2. The space is the whole point. by MjDascombe · · Score: 4, Insightful

    It's supposed to make individuals think. Without the space it's just an optical illusion. Whats next, threories explaining Mona Lisa using computers? Morphing?

    What?! They've already done that. Well, fuck it, I'll go back to coding...

    1. Re:The space is the whole point. by Anonymous Coward · · Score: 1, Interesting

      But it did make them think! Just like most people looking at the picture they probably wondered what would go in the white space if one would fill it appropriately. And in stead of photocopying the picture and start drawing by hand, they used more contemporary means and a bunch of maths.

    2. Re:The space is the whole point. by Anonymous Coward · · Score: 0

      "It's supposed to make individuals think"

      It obviously made him think :-)

    3. Re:The space is the whole point. by MjDascombe · · Score: 1

      I'm not diagreeing with that - just that it made him think, and then broadcast his ideas. Generally people don't think for themselves when someone else has already renderred and published a solution.

    4. Re:The space is the whole point. by MaxwellStreet · · Score: 4, Insightful

      I believe that just about everything creative is about thinking (often about established things), and broadcasting your ideas.

      I can understand the desire to leave things just as the artist left them - but creating these derivative works doesn't diminish the value of the original. Quite the opposite ... people are looking and considering today what they might not have before.

      And he's only rendered and published some solutions that appeal to him ... not -the- solution, and not even just -a- solution.

      I contend that by publishing several, it challenges the viewer even more to think about why these are good, and what changes we (the viewer) might make. The fact that they are based on mathematical principles - extrapolating the center and all - only serve to make his 'solutions' more compelling viewing.

    5. Re:The space is the whole point. by Steve+Franklin · · Score: 2, Interesting

      You don't suppose Escher just didn't KNOW what went in the middle? The guy wasn't a mathematician, after all. He was an artist. From the grid he used it's apparent that what he came up with doesn't agree absolutely with the extracted mathematical representation, so it's pretty clear he was just doing art and not making a mathematical statement. Martin Gardner and others make this mistake about Escher. His art may represent certain mathematical principles, but it doesn't necessarily derive therefrom. The center also would have been very difficult to paint, since it gets progressively more detailed, almost fractalized, at the center: Take a close look at the very center of this image. It keeps going!

      --
      Hic iacet Arthurus, rex quondam rexque futurus.
    6. Re:The space is the whole point. by azizlumiere · · Score: 1

      Escher not mathematician ? He might not have a degree in maths but he was doing mathematics.

      Didn't you know Einstein wasn't a scientist he was only a guy working at the patent office.

      --
      -Linux is SO fast it does an infinite loop in 5 seconds.
    7. Re:The space is the whole point. by Steve+Franklin · · Score: 1

      Every time you throw a ball you're doing physics. That doesn't make you a physicist.

      As for Einstein, he was more of a mathematician than a scientist. He actually claimed the Michelson-Morley experiment hadn't played a part in his development of Special Relativity.

      --
      Hic iacet Arthurus, rex quondam rexque futurus.
    8. Re:The space is the whole point. by Anonymous Coward · · Score: 0

      No no no, don't you recognize the curves. Obviously, Escher stumbled upon the idea of a 'white hole' and the picture is the inverse space warp from the other end of a black hole...

    9. Re:The space is the whole point. by Fjord · · Score: 2

      So, you're saying that these people shouldn't have thought about what goes in the space?

      --
      -no broken link
    10. Re:The space is the whole point. by satanami69 · · Score: 2

      He's saying to just think about the space, but don't come up with an answer for what goes in the space, because then you won't be able to think about what goes into the space. Thinking about the space is almost an answer to thinking about the space too.

      --
      I really hate Dan Patrick.
  3. Anal Retentive by Anonymous Coward · · Score: 0, Troll

    PLEASE! How anal can you get? it's art. sure the curves can be explained. What shape can't? Oh, look, that building's in the shape of a box. should we mathematically describe it? NO! Why not? Because it doesn't matter ! I'm an electrical engineer, and thus somewhat anal, but i'm not so bad that i have to go out and look for things to be anal about.

    1. Re:Anal Retentive by Anonymous Coward · · Score: 0

      Sharing is a bunch of bull, too. And helping others. And what's all this crap I've been hearing about tolerance?

    2. Re:Anal Retentive by foofboy · · Score: 0, Offtopic

      Your views intrigue me, and I wish to subscribe to your newsletter.

    3. Re:Anal Retentive by MjDascombe · · Score: 0

      Hey. That guys right - quick, everyone, stop sharing.

    4. Re:Anal Retentive by redhog · · Score: 2

      This is a painting by Escher, not some random pice of art. All of Eschers paintings are in some way mathematical and thought-inviting. They are supposed to be analysed this way, althought not to this degree of exactness. Read your GEB before you continue trolling!

      --
      --The knowledge that you are an idiot, is what distinguishes you from one.
    5. Re:Anal Retentive by Dthoma · · Score: 1
      "Mathematician Hendrik Lenstra was struck by the blank spot in M. C. Escher's Print Gallery . Why is the spot blank there, he wondered, and what should go in it?"

      Mathematicians and engineers see a problem and solve it. That's what they do.

      --

      Note to M1-ers: a curt but otherwise insightful message is not "Flamebait" or "Troll".

  4. I love Escher's works! by Anonymous Coward · · Score: 0

    I have always loved Escher's works, one of my favorites being Relativity.

    His ability to draw the seamingly impossible always fasineted me, and I jumped at the chance when some of works made a stop in town.

    1. Re:I love Escher's works! by Anonymous Coward · · Score: 0

      Great, and when you have time, go buy a dictionary.

    2. Re:I love Escher's works! by Anonymous Coward · · Score: 0

      Yeah I usually laugh when people spell seamlessly wrong, but to reverse the mistake and spell seemingly wrong makes me hgual.

    3. Re:I love Escher's works! by Anonymous Coward · · Score: 0

      And I am "fascinated" by people's reluctance to look up words that they are unsure how to spell. (or at least choose a synonym that they do know how to spell)

    4. Re:I love Escher's works! by martyn+s · · Score: 1

      Thing is, I'm sure you know how to spell just fine, and I'm sure you don't look up words you can't spell all that often. If you're a terrible speller, it would be quite tedious to look up words every sentence.

      The thing is, some people's brains are just geared to detect spelling errors and other people's aren't. I don't think it has anything to do with intelligence, I just think it's a reflection of the fact that people use many different techniques in reading and writing.

      The really tough part about looking up words is that people who can't spell don't know which words they can't spell. They aren't too sure about a lot of the words they use, even if they spell a lot of them properly. I have a cousin who is pretty intelligent and is a very fast reader, but he can't spell for his life.

      Give the guy a break.

    5. Re:I love Escher's works! by Anonymous Coward · · Score: 0

      I must admit I mostly agree with you, but in the old days people whose brains were not wired for spelling were forced to do something about it, i.e. work harder at learning to spell. It's a damn shame that proper spelling and grammar (even the simplest spelling and grammar) are optional now, and sometimes are looked upon as elitist nonsense.

      Therefore, I hate giving people an excuse to be lazy and not learn to write the language they use.

    6. Re:I love Escher's works! by martyn+s · · Score: 1

      I see your point, but this whole issue raises an interesting question: Wouldn't it be great if we had a system of spelling which describes explicitly how a word is pronounced, and therefore anyone who knows a word, and knows the general rules about spelling would then be able to spell anything?

    7. Re:I love Escher's works! by Anonymous Coward · · Score: 0

      God forbid that he use a fucking spell checker. Y'know, the one inside the magic box.

  5. Mirror picture by bodin · · Score: 3, Informative

    Mirror picture here

    1. Re:Mirror picture by Soul-Burn666 · · Score: 5, Funny

      Hey! It's the same pic!

      Here's the real _mirror_ picture.

      --
      ^_^
    2. Re:Mirror picture by Anonymous Coward · · Score: 0

      I can't tell -- what's in the blank spot now?

    3. Re:Mirror picture by TheTomcat · · Score: 2, Informative

      Nice.
      (-:

      Reminds me of elgooG, the Google mirror.

      S

  6. Wish I could do that... by ThogScully · · Score: 5, Interesting
    ...with only a high school education. I've already been brainwashed into thinking a degree is necessary to get anywhere though.

    I have trouble believing anyone will take tech people seriously these days without a degree, but I think it's great to see that there's still an opportunity for a true genius to break that belief.

    --
    I've nothing to say here...
    1. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Ramanujan didn't have much formal education and Einstein left high school and never finished. Don't forget all the child protegies.

      A quote from Einstein sums it up nicely, "Imagination is more important than knowledge".

      It doesn't matter how much you know, if you don't have imagination, you can't make the intuitive leaps that are necessary to bridge the ordinary with the extra-ordinary.

      Of course, knowledge+imagination is better than knowledge or imagination alone, but there is truth to the saying "The best swordsman in the world doesn't need to fear the second best swordsman in the world; no, the person for him to be afraid of is some ignorant antagonist who has never had a sword in his hand before; he doesn't do the thing he ought to do, and so the expert isn't prepared for him.". If you have no idea that "it's common knowledge that something can't be done" you'll try to do it and may actually succeed.

    2. Re:Wish I could do that... by guybarr · · Score: 2, Insightful

      I have trouble believing anyone will take tech people seriously these days without a degree

      AFAIK M.C. Escher was not a tech person ...

      but I think it's great to see that there's still an opportunity for a true genius to break that belief.

      1) Escher lived ~100 years ago. Things (for scientists as well as for artists) are MUCH harder now.

      2) Perhaps you really are that true genius. But even if you are, you'll probably need to study a LOT before you'll be able to make a deep impression.
      Studying is much easier when making a degree in a serious institution, than when studying alone. A degree is not a must, but it makes you study (professional) things you don't know about, and sometimes don't like very much, but will be beneficial for your future career.

      in short: studying is a must. formal education is not the only education form in existance, but it has many advantages.

      Besides, if you're the Autodeductive type, you can try studying at the open university.

      --
      Working for necessity's mother.
    3. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      1) Escher lived ~100 years ago.

      While technically that's true, it is quite a bit misleading.

      M.C. Escher was born in 1898 and his active period streched from 1922 to 1969. He died in 1972.

    4. Re:Wish I could do that... by squaretorus · · Score: 4, Insightful

      Degrees are handy if you want to work for others, as it makes it easier for them to believe you when you say "Im worth hiring". But makes not one ounce of difference when you want to do things for yourself.

      Just get out there and do what you want, measure your own success by your own values - not by the size of your car - and you'll be happy.

      Forget all societal measures of your worth - they mean nothing. Except karma of course - anything less than excellent and your a twat!

    5. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Escher lived ~100 years ago.

      A formal education didn't do you much good, did it? Escher was born about 100 years back, but died in 1972.

      Its not common knowledge maybe, but if you had read the article you would have known that. If you havn't read the article, why are you stating something that you don't know as though it is fact?

    6. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Degrees are handy if you want to work for others, as it makes it easier for them to believe you when you say "Im worth hiring".

      Maybe in the US, but in most of Europe, pointing at four or five years of relevent experiance says "I'm worth hiring". Simply pointing at a degree in something that is unconnected with the job you are interviewing for and stating "I'm worth hiring" will in most cases simply get you laughed out of the interview.

      Don't even get me started on the huge number of students who will spend the next three or four years reading worthless degrees such as English, Art or Media Studies. Fine, if you want to actually apply yourself to those areas after University, but don't ever come to an interview with me and expect to be taken seriously because of a degree in Media Studies for Christ sake!

    7. Re:Wish I could do that... by HiQ · · Score: 2

      Escher died somewhere in the 1970's, that's nowhere near 100 years age. His most impressive work was made in the 1950's and 1960's. Also, that's nowhere near 100 years ago.

    8. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Hey, smartass, he said Escher lived around 100 years ago. That is true. He said nothing about when Escher died.

      Why are you stating something that has nothing to do with what you are replying to?

      And as for the whiny high school twit- just because you are a fucking lazy ass moron doesn't make a degree useless. And if you were that genius you wouldn't be posting on /. I doubt Einstein or Escher would have spent much time here.

    9. Re:Wish I could do that... by Stoutlimb · · Score: 1

      "Degrees are handy if you want to work for others, as it makes it easier for them to believe you when you say "Im worth hiring". But makes not one ounce of difference when you want to do things for yourself."

      That's funny, because as a draftsman, I am stuck working for architects. I am going for my architecture degree because I want to DO THINGS FOR MYSELF. I think there are so many exceptions to what you just said, as to invalidate it. Degrees empower people to do things for themselves, though not everyone uses a degree for that purpose. In a broad amount of fields, it's not important if you can do something, but rather, that you can show credentials to prove it to some regulatory board.

      "Just get out there and do what you want, measure your own success by your own values - not by the size of your car - and you'll be happy."

      I wanna be a doctor. I want to help people by prescribing medicine. It doesn't matter how much I learn or know, if I follow your suggestion, I'll be happy for the short while before I'm dragged off to jail, even if I'm more competent than your average doctor. For a huge amount of the professional world, this is the same.

      Sorry bud, degrees are handy when you want to do big, meaningful things, for others or for yourself.

    10. Re:Wish I could do that... by bryan1945 · · Score: 1

      I see your point about the 4-5 years of experience, but how do you get that first job? A good degree from a good school helps a bunch. Yes, you could try and work your way up, but that is pretty iffy. For the kiddies- go get a good degree from a good school.

      --
      Vote monkeys into Congress. They are cheaper and more trustworthy.
    11. Re:Wish I could do that... by squaretorus · · Score: 1, Troll

      Okay - you want to be a doctor, you have to work for a health authority, you need a degree.

      You want to be an architect, wow - guess what - you need a degree. Lawyers too? No shit sherlock!

      All these are professions which are exclusive and involve working wither for a boss or for the Man. These do not constitute doing something for yourself, creating something new, bringing a fresh view to the world. These involve TAKING A JOB. I dont think the original poster was talking about simply getting a job - he was talking about doing something special.

      If you think being a architect or doctor is something special, I'd have to disagree - there are plenty more of THEM out there - who gives a fuck if you turn into another?

    12. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Well, you are off on the right foot, you already have a sense of the CULT that is higher education in our society.

      If you think about it, there's not much to differentiate a cult from a university.

      Universities are basic to keeping capitalism working in a technological society, they generate jobs for countless people, they generate a marketplace for textbooks (that need to change every year, although the subject matter doesn't), they generate 100's of THOUSANDS of DRONES with a heavy debt that assures employers a docile work force.

    13. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Architects, nothing special?

      Doctors, nothing special?

      Jesus you're a (bitter) idiot. Grow up.

    14. Re:Wish I could do that... by Anonymous Coward · · Score: 1, Informative

      In those days, High School generally would include three languages, loads of classic literature, and math up to integral calculus.

    15. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Escher lived around 100 years ago. That is true.

      As true as it is, it is misleading. It implies that Escher was a 19th Century artist, when he was, quite clearly, an artist during the 20th Century. He wasn't producing fine art when he was 4 now, was he?

      Why are you stating something that has nothing to do with what you are replying to?

      Are you looking at a different parent post to me, because my reply is certainly directly relevent to the parent.

      As for your little flame at the end of your post, its that sort of amazing intelect that makes me ever so upset that I'm not a member of the elite, University graduate set.

    16. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Like almost every single person I currently work with, we all started with shit jobs and worked our way up from there.

      For the kiddies- go get a good degree from a good school.

      Maybe, maybe not. Certainly, look into it. Do some research, speak to people who have done, and who are doing, University degrees, and check out the job prospects for new graduate. You may find that your choosen subject is the hot subject and you'll be earning £50k a year straight out of Uni.

      Or you may discover that a degree is pretty much useless for your choosen career, and you'll earn no more than someone without a degree.

      Remember to adjust for the offset in experience between yourself fresh out of Uni, and someone who has been working from day one. Also remember that you'll have lots of debt at the end of it.

      Oh, and one last word; If you're not going to Uni because of any possible monetery reward at the end of it...good for you! Go for it, have fun, go for a Masters. We need more people like you, and less Media Studies students!

    17. Re:Wish I could do that... by InOverMyFeet · · Score: 1

      AC, you are an idiot. Sure universities 'generate jobs for countless people' - the people that get degrees and go on to prosper in a 'technological society'. As I remember, most of the textbooks I had were already used. I can even remember some profs allowing older revisions than the required text. I, as well as most of my peers that graduated from engineering school with me, left there debt free. Most of us paid our way through school with co-op jobs with local companies. BTW, I'd rather be in the 100's of THOUSANDS of DRONES in a docile work force (with sufficient, stable income) than the 100's of THOUSANDS of PUNKS flipping burgers at Burger King like you.

      --

      -- Probability does not dismiss possibility --

    18. Re:Wish I could do that... by gorilla · · Score: 3, Informative

      Born June 1898, Died March 1972. The work in question was created in 1956.

    19. Re:Wish I could do that... by jafac · · Score: 2

      I was hired back in the tech boom, back when people would hire someone who had the skill to turn a computer on, just because they were so desperate. I never did finish my degree.

      I can say that at my company, I'm highly valued for my 10 years of experience, and my skills. But when I've attempted to find jobs elsewhere, I have trouble getting people interested in paying me more than half of what I'm making now. It's just a huge credibility jump for them, despite the fact that I've been in the same position in the same company, obviously not sucking at my job, getting fairly well paid - but without that piece of paper, you're just a pariah.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    20. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      Because then you might be able to spell intellect, and that offends your epistemological-hedonism.

    21. Re:Wish I could do that... by martyn+s · · Score: 2

      Your post brings up an interesting question. Traditionally, the indefinite article "a" in English, becomes "an" if it is followed by a word starting with a vowel sound. If you put a word in parentheses after the indefinite article, should the indefinite article reflect the word in parentheses, or the word after that? Should it be "Jesus you're a (bitter) idiot. Grow up." or "Jesus you're an (bitter) idiot. Grow up."?

    22. Re:Wish I could do that... by martyn+s · · Score: 1

      "flipping burgers" is an anachronism. I don't think anyone actually flips burgers anymore, especially not at those fast food chains. Despite what Burger King tells you about "flame-broiled burgers", I seriously doubt anyone is back there flipping burgers.

    23. Re:Wish I could do that... by Anonymous Coward · · Score: 0

      I know soneone that used to work at Burger King, there is a machine that moves the burgers through an open flame. That's how you get your flame-broiled burger.

    24. Re:Wish I could do that... by Stoutlimb · · Score: 2

      Let me guess... With that type of emotional reaction, either you got kicked out of university for low marks, or you were never accepted in the first place.

      Any how, you make it seem like the only respectable job is being self-employed... Doctors don't have patients, they work for the health authority. Architects don't have clients, they answer to the regulatory board. Lawyers don't have clients, they have the bar assotiation to work for. I could go on.

      You make it sound like the only thing worthwhile in life is homesteading and making everything for yourself, while coding open source software.

      Everyone works for an employer, whether it be one, or a crowd of clients/customers. Degrees help you get established. What do YOU do?

    25. Re:Wish I could do that... by porges · · Score: 1

      The "an" vs "a" distinction always follows the sound as if the sentence was being read aloud, so it's "a (bitter) idiot".

    26. Re:Wish I could do that... by Fjord · · Score: 2

      Degrees are handy if you want to work for others, as it makes it easier for them to believe you when you say "Im worth hiring". But makes not one ounce of difference when you want to do things for yourself

      I disagree. Degrees are earned by taking curriculum. Curriculum forces you to take subject that you may not be interested in but have to anyways because they are part of the standard. Because of this a degreed technical person can have concepts that a nondegreed person would never think or want to know. But these concepts are helpful in programming, even business DB work.

      It's a rare nondegreed person I talk to who understands order notation. To have to teach them that inorder to begin to address algorithmic efficiency is a task that doesn't have to be done with a degreed person. Rarer than that is one who knows what a state machine is and how it applies to parts of their work. Rarer still is one who understands stochastic algorithms and what variance is.

      But even if you decide to bone up on these things there will still be things you don't learn because you haven't been forced to do so. Getting a degree from a good university really does make you a better person. When working on a tough problem at work and going through pages of results related to it in Google, the curriculum you know will help make the pages make more sence. I doubt that before my degree I could answer many of the questions on this page. I answered all but 3, and the 3 I didn't answer were because they would take more programming time than I cared to put in and 2 were covered in courses I took (the other is the spiral one which is relatively trivial). I'm fairly sure if I didn't go to university, I'd have been lost at O(n).

      And no matter what you are "doing for yourself", you are working for someone else if it's income related. Be it the client as an independent contractor, the bank for a private company, or shareholders for a public company, everyone is accountable to someone. Having a CS degree will help you in programming, design, and architecture jobs. A CTO really should have an understanding of CS concepts in order to be an effective decision maker.

      And if what you're doing for yourself isn't income related, then an educated background gives you a richer understanding of the things you do.

      --
      -no broken link
    27. Re:Wish I could do that... by squaretorus · · Score: 2

      If you must know I have an Honours degree in Chemistry. I loved my time at Uni, it set me up for life - but the time spent drinking beer and playing cricket was as important as the time spent in the labs.

      I've had a few jobs, and currently work for myself producing niche software for a small number of clients - its nothing ground breaking but it pays the bills.

      I don't think I have the ideal life - but it suits me. Being a doctor or lawyer or whatever is too restrictive for me - there is a strict code of conduct, a stricter pecking order, and a defined 'career path' to be followed.

      I have never been asked if I had a degree, and I've never volunteered the information to any potential employer or client. I never said medicine wasn't a respectable profession - I simply said its nothing special in most cases.

      The original poster didn't say 'wish I had a respectable job without a degree' he said 'wish I could do something important with my life without a degree'.

      The coolest job I know of is a guy who builds hedges - he started from scratch without a qualification to his name - but he is changing the landscape around here! By making traditional hedges a possibility at a reasonable cost he is changing the way the place works. He's WAY more important, and more interesting than 99.9% of doctors.

      I see no contradiction!!

    28. Re:Wish I could do that... by squaretorus · · Score: 2

      Jesus! How far out of context can I be taken!!!

      All I said, was that a degree doesn't help you do special things. ALL your examples are about fulfilling existing requirements through acquiring existing knowledge in a structured manner.

      Now, I don't dispute the value of that but the question is WHATS SO SPECIAL ABOUT THAT???

      I have a degree. I did pretty well. I learned a shit-load of stuff. But it in no way makes me more likely to CREATE something NEW.

      Think outside the box. The whole point of life is not to create neat code, or to effectively manage coders, or do draw shapes. Sometimes people create something new, like Escher, and in doing so they dont just fall back on stuff learned at 'Creating 301'.

      I'm not putting down degrees - even tho they let any old chimp on a degree course nowadays!

    29. Re:Wish I could do that... by Fjord · · Score: 1

      But it in no way makes me more likely to CREATE something NEW.

      I thought I had addressed this, but I never really did directly (halfway through the post I started to fall asleep). My bad. I was actually disagreeing with this point. A degree does help you create something new because it exposes you to things you wouldn't have gone to before. By having this exposure, the richer understanding I was talking about, it really does help create something new.

      On the weekend for fun I started writing a distributed session manager. The cirriculum I took really applies and the thing that is special is that I know I wouldn't have learned that much on my own. I say think inside the box. Writing niffy code isn't the only thing in life, but it can be something you create that's new. It's hard to create new things without an understanding of what's old.

      Similarily, a degree in fine art forces you into using artistic style you really don't care for. I'm not saying that a degree is the only thing that can make you talented, but I do feel a naturally talented person is stunting themselves by refusing to take a degree. A degree really does represent knowledge you wouldn't have otherwise. I'd love to be taking an MBA right now if I wasn't so freaking tired all the time, inspite of the recent studies that show it doesn't help increase salary. I know how much cool stuff I learned in my CS degree, and how much cool stuff there was in my operations research degree (which partly overlaps with an MBA). Because of this I know there's cool stuff in an MBA, I just don't know what it is (and reading a course outline doesn't help).

      --
      -no broken link
    30. Re:Wish I could do that... by bryan1945 · · Score: 1

      Oops, forgot to mention my background, thus not showing my bias! I'm an EE working in tele/data-comm systems, so I'm in a very degree oriented profession. Sorry, MCSEs are just NOT going to be designing comm systems for the gov any time soon. And don't talk about the masters, my company has been poking me about that for 2 years already..... ...of course I could always go the way my dad did, just pick up a PhD in nuclear physics by the time he was my age! Jeez, at least my mom was only a nurse by this time... wait, that's not easy, either. Ah, crap! The pressure, the pressure! At least no underpant gnomes yet...

      --
      Vote monkeys into Congress. They are cheaper and more trustworthy.
    31. Re:Wish I could do that... by guybarr · · Score: 1


      I can say that at my company, I'm highly valued for my 10 years of experience, and my skills. But when I've attempted to find jobs elsewhere, I have trouble getting people interested in paying me more than half of what I'm making now.

      then you're taking a large risk: what happens if your current project closes or if there's a new pointy-headed boss that simply dislikes you ?

      IMHO, you should invest the time and money and study for a degree part-time. It will make your career more robust.

      --
      Working for necessity's mother.
  7. Hmm by Pxtl · · Score: 1

    I couldn't find in the article - what is the actual story of the hole in the picture? Was it deliberate? Was it a puzzle for fellow artists (as approached here)? Was it an error? Was it just to make people think? Was it damaged after completion? What?

    Btw, my fave escher has always been the hand drawing a hand. Relativity would make a great Q3 level tho.

    1. Re:Hmm by ThogScully · · Score: 3, Interesting
      No one reallly knows except Escher, who's unlikely this late in the game the disclose it (ie. he's passed on).

      Some theories are that he wanted people to look at it and wonder. Some say he just didn't quite know how to proceed. This guy seems to think he's done what Escher meant to do, but perhaps didn't quite have the mathematical understanding to complete. Escher was always known for not being very book-smart and sort of amazed at what mathemeticians found in his works. He knew he was making them with some structural intent, but never really knew the theories behind what made them seem to click.

      --
      I've nothing to say here...
    2. Re:Re:Hmm by Anonymous Coward · · Score: 3, Insightful
      This makes me wonder/question/revisit the old debate of nature/nurture? Is it possible that Escher's brain was wired in a particular way that allowed him to create works of art based on mathetic principles without knowing the underlying structure? I.e. was escher following principles of cellular automata or something like it?

      This brings up another debate which is more interesting than why did escher leave a hole in the picture. What constitutes genius or brilliance? Is the artist who draws instinctively a genuis? Or is the mathematician who applies complex theories to pictures and natural patterns a genuis? Are both the artist and scientist manifestations of two sides of a coin? Or are we just playing into stupid labels? In the end, does it really matter that escher left a hole in the picture, or that people wonder why the hole is there?

    3. Re:Hmm by eam · · Score: 2, Funny

      > No one reallly knows except Escher, who's
      > unlikely this late in the game the disclose it
      > (ie. he's passed on).

      Hey, it never hurts to ask. I lit a candle. Now, everybody hold hands, close your eye's and concentrate.

    4. Re:Re:Hmm by Zmai · · Score: 1

      Genius is the ability to make the heretofore unknown and render it blindingly obvious. Zmai

    5. Re:Re:Hmm by Pig+Hogger · · Score: 3, Insightful


      This makes me wonder/question/revisit the old debate of nature/nurture? Is it possible that Escher's brain was wired in a particular way that allowed him to create works of art based on mathetic principles without knowing the underlying structure? I.e. was escher following principles of cellular automata or something like it?

      Perhaps. Some people's brains are better than other at extrapolating phenomenon after a cursory glance; mathematics simply attempts to formally describe the extrapolation, so people who are unable to extrapolate by themselves can do so by applying the formal principles. Maurits Cornellis Escher was amongst the former people, and university gratuates are amongst the latter.

    6. Re:Re:Hmm by Zmai · · Score: 1

      errr....

      How about....

      Genius is the ability to TAKE the heretofore unknown and render it blindingly obvious.

      Darned preview button. Theres a joke in this comment somewhere, but I can't find it.

      Zmai

    7. Re:Re:Hmm by pmz · · Score: 4, Interesting

      Are both the artist and scientist manifestations of two sides of a coin?

      Of the people I've known, a brilliant scientist and a brilliant artist are most frequently found in the same person. It really isn't two sides of something but two different words for the same thing.

      It is unfortunate that our culture has separated art and science, because both are manifestations of knowledge, critical thinking, and ingenuity. For example, Ludwig van Beethoven and Sigmund Freud each had profound insight into human psychology, but they employed different vocabularies and reached different audiences.

    8. Re:Re:Hmm by gilroy · · Score: 3

      The difference between a madman and a genuius is that we force the madman to live in our world while the genius forces us to live in his.
      --Karl Evander Kaufeld

    9. Re:Re:Hmm by jhines0042 · · Score: 2

      Einstein had nominal education and apparently flunked math his first time through. Then he went and worked in a patent office... or so I've heard. I'm no expert.

      M.C. Escher made money designing stamps and advertising pamphlets for a while. Seriously.

      So maybe Genius is described as "intelligence" that is taught to one self. A kind of unexpected smarts that surpasses the expected level of smarts? But there are many other people who are geniuses that have had formal learning.

      Maybe genius is defined as "intelligence at a level that is commonly accepted to be extraordinary". Lets see what the dictionary has for us: ::SNIP::
      Main Entry: genius
      Pronunciation: 'jEn-y&s, 'jE-nE-&s
      Function: noun
      Inflected Form(s): plural geniuses or genii /-nE-"I/
      Etymology: Latin, tutelary spirit, natural inclinations, from gignere to beget
      Date: 1513
      1 a plural genii : an attendant spirit of a person or place b plural usually genii : a person who influences another for good or bad
      2 : a strong leaning or inclination : PENCHANT
      3 a : a peculiar, distinctive, or identifying character or spirit b : the associations and traditions of a place c : a personification or embodiment especially of a quality or condition
      4 plural usually genii : SPIRIT, JINNI
      5 plural usually geniuses a : a single strongly marked capacity or aptitude b : extraordinary intellectual power especially as manifested in creative activity c : a person endowed with transcendent mental superiority; especially : a person with a very high intelligence quotient ::SNIP::

      --
      42 - So long and thanks for all the fish.
    10. Re:Re:Hmm by topham · · Score: 2

      It's quite possible a percentage of the population can intuitivly apply some mathamtical concepts without indepth analysis.

      On the other hand, we try to beat that out of them as students in elementry school.

    11. Re:Re:Hmm by dillon_rinker · · Score: 2

      Is it possible that Escher's brain was wired in a particular way that allowed him to create works of art based on mathetic principles without knowing the underlying structure?

      Yeah, same as everyone else's. Ever draw a circle? Know all the properties of a circle? Ever draw a cloud? Know all the properties of the fractal structure of clouds?

      In the end, does it really matter that escher left a hole in the picture, or that people wonder why the hole is there?
      In the end is the heat death of the universe. Sooner than that, in the end is our own death. In the end, none of it matters. But it's kinda cool no matter what.

    12. Re:Hmm by Anonymous Coward · · Score: 0

      1. Because it's ART. Art needs no explanation. Any artist who has to explain his work is a shitty artist- he should have conveyed it in the art (although getting the observer/critic to ask is also ART

      2. Look closely at the picture. He started at the edges and worked his way in. It would be damned hard to fill in the "blank" spot

      3. The "golden mean"

      -steve
      (Steve's School of Fine Art)

    13. Re:Hmm by tgibbs · · Score: 2
      I think that Escher knew what perfectly well what went in the center. But what goes in the middle is an infinite regress in which objects get indistinguishably small very fast. Ultimately, you have to give up and stop drawing at some point. Escher just decided to stop drawing before everything started repeating, leaving that mysterious blank spot--and a nice prominent place to put his signature.

      The only reason the images on the site work is that they blow up the center so that you can see what's really going on. Without the zoom, you can't really make much sense of the center of the picture, anyway.

    14. Re:Re:Hmm by Logic+Bomb · · Score: 2

      Richard Feynman is another fabulous example of this. Here's a link to Amazon for a book about him and his art. He became interested in drawing and got very good at it. If you can find this book, it's worth a look, if just for all the pictures and the entertaining introduction by Mr Feynman himself.

    15. Re:Re:Hmm by Anonymous Coward · · Score: 0

      Or... on the other hand, the number of people who weekly buy their lotto tickets completely nukes your hypothesis :-)

  8. Why the blank spot was there by Anonymous Coward · · Score: 1, Insightful

    Easy. Because it was too frigging difficult to draw what would go inside it. Look at the computer generated blank spot replacements. Escher would have had a very hard time to calculate and draw that.

    1. Re:Why the blank spot was there by WibbleMonkeys · · Score: 1

      "because it was too frigging difficult" This was my first thought too. I suspect he tried a few times, decided it was to much, then thought about the advantages of leaving it out. In the end he probably chose to leave it out for reasons other than the difficulty of drawing it, although that would br high up on his list. BLM

  9. Great collection of Escher images by tolleyl · · Score: 4, Informative

    This is a page of Escher images that are posted with permission of the copyright holder. It's one of the best collections on the web. http://www.cs.unc.edu/~davemc/Pic/Escher/

    1. Re:Great collection of Escher images by Anonymous Coward · · Score: 0
  10. Re:DON'T CLICK THE LINK by Grayraven · · Score: 1

    Umh, it is not.

    --
    "Source... The Final Frontier" -- keepersoflists.org
  11. absurd by Anonymous Coward · · Score: 5, Insightful

    This is perhaps one of my favorite drawings by esher and has been so for many years. Oddly enough, when I first saw the picture I was sorely pissed off because the picture didn't seem complete. What the hell was in that spot? I wanted to know badly and I couldn't possibly like the drawing until I did.

    It was only when I came back to the picture years later. I tried to figure out what I would put in the spot that I realized how excellent the drawing is. It is a stunning metamorphosis between images and I believe the spot only serves to compound that perfectly. If the spot was there you would spend more time staring at the spot them following the transforming images around the outside. The subtly of the picture would be lost on people who were fascinated by the damn spot in the middle (as it was with me).

    I'm not denouncing their work. It is very impressive and interesting to read. However I have no intentions of ever hanging a print up without that damn spot. (insert appropriate Shakespeare joke here)

    1. Re:absurd by micromoog · · Score: 2

      Agreed. The way the work is drawn, the view is subtly transformed from inside the hanging print to the outside world and back as you move your eyes around the spot. If the spot were not there, it would force inside/outside to meet at some specific point. As it is now, it's a smooth transition.

    2. Re:absurd by Bill_the_Kid · · Score: 1

      Not Shakespeare, but how about "Give me no spot, or give me death!"?

    3. Re:absurd by Anonymous Coward · · Score: 0

      without that damn spot ~ out damn spot
      the "good" lady

  12. OK, I'm impressed. by 6Yankee · · Score: 1, Interesting

    Wow. I've loved Escher's work for as long as I can remember. But I never knew it was this complex. Guess I always imagined he was smoking something interesting.

    My favourite Escher work is his "Three Spheres". I dabble with raytracing and regularly give my P4 a headache. Anyone who can do this sort of thing without a computer is a genius in my book.

    Going to go back and look at the diagrams properly now, see if I can learn something.

    Wow.
    1. Re:OK, I'm impressed. by antdude · · Score: 2

      Are you referring to the perfect reflections in the middle marble? Example Picture

      --
      Ant(Dude) @ Quality Foraged Links (AQFL.net) & The Ant Farm (antfarm.ma.cx / antfarm.home.dhs.org).
    2. Re:OK, I'm impressed. by 6Yankee · · Score: 1

      That's the fella.

      Of course, he probably drew what he saw rather than calculating reflection, refraction and all that other raytracing stuff, and in this respect (the lack of maths) it's probably one of his simpler works.

      But think about it: You look down at the paper to draw a little, then look back up again - if your head's not exactly where it was before, everything will have moved. I'd have cheated, taken a photo to work from, then drawn my ugly mug in where the camera appeared... maybe Escher did too?

  13. For those who don't know Escher by Anonymous Coward · · Score: 4, Informative
  14. It's cool to see what it looks like filled in.... by Launch · · Score: 1

    but it's art, not math... I think it's a good practice, but I wouldn't try to take anything away from Escher but publishing it.

    --
    Your mammas flamebait.
  15. I can't believe it! by Spackler · · Score: 4, Interesting

    This is one of the few articles where the troll responses made more sense than the real ones.
    1. It's art. Just enjoy it.
    2. Not everything needs a higher meaning

    My opinion is that it is the drain that the world is circling around, but that is just MY opinion.

    1. Re:I can't believe it! by sbar · · Score: 1

      > 2. Not everything needs a higher meaning True, but simply glancing at other work of Escher's reveals at once the the artist's fascination for self-replicating patterns. This discovery only verifies that even this picture can be extended in Escher's spirit. That can hardly be mere coincidence. Now, by not completing the picture ad infinitum makes it of course into a marvellous piece of art.

    2. Re:I can't believe it! by Masem · · Score: 5, Interesting
      I would argue that the researcher that undertook this work was not trying to depreciate the value of the art at all by doing this analysis: he was simply interested in seeing if he could 'finish' the work by using elliptical curves and image manipulation.

      First, I do think that Escher left that space blank intentionally partially to help the eye follow the 'progression' of the illusion, but also, it would be impossible to draw out the center with 'dull' tools like pencils and pens. On this latter point, the researcher's site points out that the image would be infinitely recursive into the center; to draw it out completely would be neigh impossible. Escher probably realized this when drawing it (and without knowing exactly what elliptical curves were), and concidering the overall positive effect of the white space, left that area blank when he couldn't effectively draw any finer detail than his usual style.

      So what is of interest of this research is more of what we can do with image manipulation and mathematics to 'extrapolate' art, rather than to say that Escher was lazy and could have finished that work. There was an article almost a year ago here on a program that 'analyzed' the style of one image and applied that to a second image, one example being of Monet's dot style applied to photos and other classic artwork. This falls in the same line; the group had to extrapolate a few parts of the picture that fell outside Escher's original, then used complex math to rebuild it in a number of ways. The results are certainly not 'new' artwork in anyway, but they do show what we can do in "Computational Art".

      (Hmm, I wonder, before it was /.ed, did they try to take this procedure in reverse; that is, take a photo that has sufficiently similar properties like the print itself, after it was deconvoluted into the simple image, and reapply the elliptical curve as to generate the same optical illusion as the original had?)

      --
      "Pinky, you've left the lens cap of your mind on again." - P&TB
      "I can see my house from here!" - ST:
    3. Re:I can't believe it! by jafac · · Score: 4, Informative

      1. I've studied Escher, and I'm utterly convinced that he knew exactly what elliptical curves were. He may not have understood it in a mathematically analytical sense, more of as a intuitive sense.

      2. His work was primarily in lithography. You don't worry too much about the fine precision of "dull tools" like pencils and pens. Traditional lithography is done on a large limestone slab, with a grease pencil, yes, but you can sharpen the pencil and achieve very fine lines, because it's very soft - and ultimately, you're more limited by the grain of the paper in your resolution than anything else.
      (next, the grease pencil acts as a resist, and the stone is chemically etched, and then ink applied. The raised, or non-etched bits of the stone surface press ink into the paper, the depressed bits do not.)
      Escher also worked a lot in woodcut and engraving - those techniques are fairly obvious, and in woodcut, at least, you are pretty limited in resolution, as far as the grain of the wood goes.
      In any case, drawing out the center, as it goes, is not impossible - because EVERY object you draw has infinitely small detail on it. Part of the technique of a good artist is knowing when to suggest detail and when to actually render it, and at what point, actually rendering it will yeild an effect that is not desirable. Had Escher chosen to render this portion of the drawing, it would have been a simple matter of rendering the details down to a certain point, and thereafter, simply suggesting it - knowing that, nobody's going to be examining the central part of the drawing with a microscope. The human eye only sees so much.
      It's more likely that he concluded that the human eye of the viewer would have been drawn to this central point, and the problem would have been that attention would be needlessly focussed on the details there, instead of the outer portions of the drawing.

      3. Escher was Dutch. I know we've all seen enough racial profiling in the past year, but the stereotype holds true - you'll be hard pressed to find a lazy, or even "laid back" (to use the politically correct term) Dutchman. Enough with the generalizing - just a brief study of the individual's life, and you'll know that he was a very intense, hard working man, and a very prolific artist. Looking at some of his studies and sketches, and how he drafted out and worked on these designs, they were incredibly labor intensive. He could have chosen to draw in any style he wanted, and he chose this mathematically precise style because it was fun to him. Anyone who suggests that Escher was in any way lazy or allowed a work to be "uncompleted" simply does not know the first damn thing about the man.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
  16. Re:MOD PARENT DOWN by Launch · · Score: 2, Insightful

    You guys are missing the big point... Freedom of speech, this is hardly a troll post (like what we get from the CLIT)... This is a well thought out and good post, just because you don't agree with it doesn't make it flamebait. /. at one time was about unpopular opinions, now it's about Troll-Bashing... If you don't love X, and you think MS can make a product that runs your company's LAN then you don't have a say on slash. It's boring, it's old, and it's killing slashdot. If your goal is to prove to the world that linux is the operating system to use, and that open source software is the greatest thing since sliced bread then you are going to need an audience to preech too, but if you call them all fucktards then I don't know who is going to listen, and it will be nothing but a blow to the /. community.

    --
    Your mammas flamebait.
  17. Warning don't try this at home... by MADCOWbeserk · · Score: 2, Funny

    I have been watching the animation full screen on repeat for 15 minutes.

    I now have a splitting headache and am dizzy and nauseous.

  18. For the curious: by colmore · · Score: 5, Informative

    Elliptic Curves:

    curves of the form y^2 = Ax^3 + Bx^2 + Cx + D

    pick values for A B C and D, the locus in 2 space (the cartesian plane, or R2) is the type of curve Escher was using.

    In analysis, which is where all of the headline making math using Elliptic Curves, A B C and D (as well as x and y) can be complex numbers.

    At this point things get complicated. I'm not going to fill up 1000 words explaining Riemann surfaces, algebraic functions, etc.

    There are a lot of good pages out there.

    --
    In Capitalist America, bank robs you!
    1. Re:For the curious: by sbar · · Score: 1

      Oh, well. Analysis is not the most popular area for elliptic curves right now.
      Try algebraic geometry, algebraic topology or crypto.
      In cryptography, one usually work over finite fields so everything becomes descrete and easy to implement.
      Generally, you can make sense of elliptic curves over any field.


    2. Re:For the curious: by colmore · · Score: 2

      I know, I was just about to write up a whole thing about how they can work on any field, and how elliptic curves themselves make pretty interesting groups, how they are topologically equivalent to toruses, etc. but I stopped myself, the article only mentioned applications of - curves that exist in 2 real or 2 complex dimentions.

      --
      In Capitalist America, bank robs you!
  19. Those Escher links drive me krazy! by wichtolosaurus · · Score: 5, Funny

    I tried to follow the link, but it actually sent my browser to the page I visited before.
    That's impossible. Wait.... if water can flow upwards..... damn Escher!

  20. Background by Oliver+Newland · · Score: 2, Informative

    A little history on MC Escher here.
    HTH HAND

    --

    I got a 1600 on the SATs.
  21. Focal point by reelbk · · Score: 3, Insightful

    I think Escher meant to leave that area blank since it seems like the rest of the drawing is being drawn towards it. It's the focal point of the picture since that's where the picture in the gallery actually connects to the gallery. If you look closely, you'll notice that the frame of the picture is on it's way to meet with the picture itself, which is infact the gallery (woah, I've fallen into the loop). I think this dot was left up to the imagination. There is no correct solution, but this method is a terrific idea.

    --
    - A real programmer uses $ cat > a.out
    1. Re:Focal point by Anonymous Coward · · Score: 0

      I think this dot was left up to the imagination. There is no correct solution, but this method is a terrific idea.

      Next time I am stumped with regard to how to organize a program, I will just leave it blank :-)

    2. Re:Focal point by reelbk · · Score: 1

      You simply don't understand the idea behind it. He didn't leave the spot blank because it was too difficult to draw. He left it blank in order to capture the viewer's imagination.

      --
      - A real programmer uses $ cat > a.out
  22. Here's another using psychic factorization by N8F8 · · Score: 5, Funny
    --
    "God fights on the side with the best artillery." - Napoleon, Marshal of France - speaking truth to power
    1. Re:Here's another using psychic factorization by Fjord · · Score: 2

      OMG. 5 mod points isn't enough to rate how funny this is. still laughing out loud

      --
      -no broken link
  23. NYT... by Anonymous Coward · · Score: 0

    Isn't it cool slashdot effect when you search for "registration required" on google, and NYT is the first page to come in. And a google cache look at it shows that the terms don't even appear on the page. They appear only in the links pointing to this page....

  24. better things to do with his time by smellmyfart · · Score: 0, Flamebait

    Why is it so important to solve this problem?! Honestly, he could have done better things with his time. Here are a few suggestions: 1. Gotten a better haircut (check out his picture in the NYT). 2. Gotten Laid 3. Destroyed a copy of Windows with a bat 4. Figured out if Bill Gates secretly fantasies about using Linux naked 5. Surfed for free porn on the net 6. Solved world hunger 7. Figured out why my farts smell so bad What an utter waste of time, leave your suggestions on what else this guy could of have done.

    --
    First, you have to know, not fear, know that someday you are going to die
  25. Wow! by MuMart · · Score: 1

    Now where can I find a program to Escherize(tm) any Droste-effect type picture :)

  26. Hmmmm... by Anonymous Coward · · Score: 0

    I don't think it quite achieves Escher's original vision which is trying to suggest the idea of a picture inside itself. The computer image spirals through a picture that contains an identical picture that contains...

  27. Lenstra at HP Research Labs by Lev13than · · Score: 3, Informative

    Lenstra gave a talk on the subject at the HP Research Labs Colloquium last July:

    http://www.hpl.hp.com/infotheory/lenstra071101.htm

    Abstract:
    Elliptic curves form one of the hottest topics in arithmetic algebraic geometry. Applications of elliptic curves range from a proof of Fermat's Last Theorem to the design of secure cryptosystems. In the lecture we present, as a novel application of elliptic curves, a mathematical analysis of Escher's lithograph `Print Gallery'.

    --
    When you have nothing left to burn you must set yourself on fire
  28. My mirror of the thing by Pig+Hogger · · Score: 3, Informative

    Just got the time to save everything and mirror it here before the Slashdot effect doomed the whole thing...

    1. Re:My mirror of the thing by Anonymous Coward · · Score: 1, Funny

      You mirrored it perfectly! Down to the Slashdot effect ;-)

  29. are you... experienced? by infinite+jester · · Score: 2, Funny
    check out the animations

    having downloaded a few loops (they'll make great screensavers), i'm now torn between two equal desires: part of me wants to research the proof of fermat's last theoren, while another part of me wants to put on some hendrix, drop some acid and stare at an endless escher loop for a few days

    --
    i thought, therefore i was...
  30. GoatWar is coming! by Anonymous Coward · · Score: 0

    In A.D. 2002
    GoatWar was beginning.
    Captain: What happen ?
    Operator: Somebody set up us the Goat
    Operator: We get Goat
    Captain: What !
    Operator: Main screen turn on
    Captain: It's Goat!!
    Cats: How are you gentlemen !!
    Cats: All your Goat are belong to us
    Cats: You are on the way to Goat
    Captain: What you say !!
    Cats: You have no chance to survive make your time
    Cats: HA HA HA HA ....
    Cats: Take off every 'Goat'
    Captain: You know what you doing
    Captain: Move 'zig'
    Captain: For great justice

  31. Do you need Mathematics .... by os2fan · · Score: 4, Interesting

    Seriously.

    The point is, that you can perfectly see the sort of space that Escher draws, or that I dabble in, without too much mathematics.

    I quite often see the curves that Escher drew in his pictures.

    Also, one can even understand hyperbolic geometry without any great understanding of the mathematics. I have even made new discoveries out there.

    The thing is, that the relations that describe these things can be found quite intuitively. In this light, one does not need a "formal education" to see them.

    His circle-limits, for example, were gleaned from a drawing in H.S.M. Coxeters' book, of the symmetry group of a {6,4}. My understanding comes from a similar drawing of a {7,3}.

    Also, there are some of Escher's drawings where he assembled ideas into distinctly non-mathematical drawings, such as his final lithograph, Snakes [which is a poincine projection, coupled with one that bends inwards as well].

    The fact is, that Escher understood certian constructs of absolute geometry, and was also an artist. Having read a number of his notes, I can understand how he came to devise his drawings.

    I can draw reasonably accurate projections in hyperbolic geometry even without any understanding of hyperbolic trig, etc...

    --
    OS/2 - because choice is a terrible thing to waste.
    1. Re:Do you need Mathematics .... by jrpascucci · · Score: 1

      > I have even made new discoveries out there. How do you know they are new? Hence, the benefit of more formal education in mathematics. -J

    2. Re:Do you need Mathematics .... by Reziac · · Score: 3, Informative

      I have a complete-works-of-Escher book, and another on centuries-old Celtic and Arabic pattern art. Quite interesting to compare, as they all use many similar techniques.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
  32. Fradulent Link by Anonymous Coward · · Score: 0

    This link is a fradulent link and points to something the likeness of gay porno.

    This person is a sick freak!

  33. Is it? by i0chondriac · · Score: 1

    For very interesting interpretations, read Godel Escher Bach by Douglas R. Hofstadter.

    While I agree that sometimes a cake is just a cake, this book may change your mind on the subject of Escher.

  34. White space by stere0 · · Score: 5, Funny
    Why is the spot blank there, he wondered, and what should go in it?

    The white space is there 'cause the server's slashdotted, Sir. Escher's painting should go in it.

    --
    Trollem mirabilem hanc subnotationis exigiutas non caperet
    1. Re:White space by Reziac · · Score: 2

      Hmm. I may have to do something about my website. The index page is named "Blank Spot". (Really!)

      --
      ~REZ~ #43301. Who'd fake being me anyway?
  35. It Says: This space by maxume · · Score: 5, Funny

    intentionally left blank.

    Sorry, back to bed with me.

    --
    Nerd rage is the funniest rage.
    1. Re:It Says: This space by Anonymous Coward · · Score: 0

      So Escher was the inspiration for the IBM docs guys. It explains a lot, it really does.

  36. I did a little research... by Quantum+Singularity · · Score: 5, Interesting

    ...and I found this:
    "The secret of its making can be rendered somewhat less obscure by examining the grid-paper sketch the artist made in preparation for this lithograph. (picture here)Note how the scale of the grid grows continuously in a clockwise direction. And note especially what this trick entails: A hole in the middle. A mathematician would call this a singularity, a place where the fabric of the space no longer holds together. There is just no way to knit this bizarre space into a seamless whole, and Escher, rather than try to obscure it in some way, has put his trademark initials smack in the center of it."
    The whole article can be found here. I didn't see the site, apparently /.ed. Just my $0.02.

    1. Re:I did a little research... by Florian+Weimer · · Score: 2

      A singularity, exactly. And if I recall most of (all?) the Escher prints I saw avoided singularities: they were quite regular, so to speak, at least locally. Only if viewed as a whole, they were absurd.

    2. Re:I did a little research... by Anonymous Coward · · Score: 0

      I think he didn't "smack" his signature there. Escher normally signed his pictures outside. By putting the signature at this place, he told everybody that this place is not part of the picture. We instinctively see the format of the pic is a ring.

  37. Just because you can... by Anonymous Coward · · Score: 1, Interesting

    ...doesn't mean you should.

  38. Are we sure about the education? by TheSync · · Score: 2
    From here it reads:
    Born in Leeuwarden, Holland, the son of a civil engineer, Escher spent most of his childhood in Arnhem. Aspiring to be an architect, Escher enrolled in the School for Architecture and Decorative Arts in Haarlem.
    I know that today, architecture schools require calculus and several basic structural engineering courses. I wonder what was covered back then.

    Add M.C. Escher to the list of people who got out of architecture and into something better, like Rick White of Pink Floyd.

    1. Re:Are we sure about the education? by Anonymous Coward · · Score: 0

      " Add M.C. Escher to the list of people who got out of architecture and into something better, like Rick White of Pink Floyd."

      Add also Weird "Al" Yankovich.

    2. Re:Are we sure about the education? by Dynedain · · Score: 2

      As a recent graduate from one of the most prominent architecture schools in the US, I can say that your assumptions about architecture programs are as flawed as mine were before entering the program. Calculus is not required; in fact all that is required in my program is the basic university math requirement (pre-calc) and thats for graduation, not admission. That and the structural engineer courses are extremely basic, everything simplified into basic vector problems that can be solved graphically.

      That may scare you into running away from any built structure, but, keep in mind typical wood frame houseing is a well-established industry and the "rules of thumb" eliminate most need for structural calculations. Anything more complex than that (concrete or steel frame buildings) and the architect normally hires a structural engineer (Civil Engineering grad) as a consultant.

      --
      I'm out of my mind right now, but feel free to leave a message.....
    3. Re:Are we sure about the education? by Anonymous Coward · · Score: 0

      Funny you should mention Pink Floyd. I was studying Escher drawiings one evening trying to learn his stair technique while listening to PF and the relationships of his art and the music came clear.

      Start here: http://www.ainet.com/eye/illusion/

      Here is the pic I used for my example:

      http://www.ainet.com/eye/illusion/visual/escher. ht ml

      You really have to read it to see what I am talking about. Mail me with comments if you have any. My email is on the first page.

      th

      http://www.ainet.com/eye/brightside.html

    4. Re:Are we sure about the education? by TheSync · · Score: 2

      The University of Maryland School of Architecture requires Calculus I and Physics I & II to graduate. But no CAD classes required...("it's just a tool").

      BTW, are you sure you really want to be an architect? Do you really want to earn less than a school teacher and spend 50-60 hours per week at your job without getting paid for overtime? (Or if you do get paid hourly, it is de-rated so you still make very little)

      Do you want to spend endless days of CAD doing drafting of the princicpal's "designs" and CD's (construction directives, i.e. changes)?

      Do you want to go back to grad school, get your Master's, and then not make any more when you go back to work?

      Or do you have the needed capital and sales skills to start your own practice? (Despite the fact that most people and companies don't give a dang about architecture, i.e. Ryland Homes and office parks).

      Maybe you REALLY love construction. That might be a saving grace.

      Don't expect architecture to be about creativity. That day is long gone. Even the "rock stars" like Gehry are basically reduced to doing near copies of their existing work.

      Just a warning!

    5. Re:Are we sure about the education? by Dynedain · · Score: 1

      I don't need a warning....I am already working in the field. I know the struggles, and the benefits. Masters? forget it, unless its in another field. Actually, I'm doing a lot of computer graphics work for architects, interior designers, and now a movie as well.....Its a career path I'm definately keeping open.

      BTW, "CDs" stands for Construction Documents....

      Oh, and the firm I work at uses the studio structure, so the same group of 6 people works on a document from the very beginning design stages all the way through construction management. Everyone works on every part of the process.

      My school (University of Southern California) also considers CAD "just a tool" although the acrediting board complained about that last year and now CAD and 3D Modeling are being at least introduced to the students in studio (but still not encouraged)

      Luckilly I made it a personal goal to excell at 3D Modeling and rendering

      --
      I'm out of my mind right now, but feel free to leave a message.....
  39. Re:It's cool to see what it looks like filled in.. by gilroy · · Score: 2
    Blockquoth the poster:
    but it's art, not math..
    I wonder if, at the most fundamental level, there's any difference between the two...
  40. Art or math by gilroy · · Score: 4, Insightful
    I've read a bunch of comments along the lines of "Oh, that's interesting. But those mathematicians, with their formality, are killing Escher's art". Bullwash. There is beauty in the math, too, and grace, and yes, even art. Sure, these researchers are using a different brush and a different canvas. But in number theory there are intricacies and elegances to break your heart. It's no less "art" because it's done through math.

    I don't think they've improved on Escher, any more than I think they've "ruined" him. They've just used his artwork as a springboard for their own. For a community that likes to rhapsodize about the value of the public domain and the intellectual commons, an awful lot of slashdotters seem to object to this.

    1. Re:Art or math by 6Yankee · · Score: 1

      "There is beauty in the math, too, and grace, and yes, even art."

      Valid point. To me, just the bare grids have a beauty all their own. The remind me of the structure of a glass roof. And to think they've been there underneath, all this time, and I've never known.

      Of course, now I'm going to go looking for them, and I will probably have some strange vision/psychiatric disorder by the end of the week...

    2. Re:Art or math by dillon_rinker · · Score: 2

      To those who think there is no art in this mathematical analysis:

      "Euclid alone has looked on beauty bare."

  41. a few things by kimota · · Score: 2, Interesting

    1. Okay, haven't read the article yet because the site is effectively Slashdotted, but... During the Renaissance, I think it was (or maybe the 1700s), there was a genre of painting/drawing that involved using a highly reflective cylinder in the center of the work while creating it. The result was that the picture was distorted until you placed the cylinder in the center--then you could see in the cylinder itself the undistorted image. I've seen photos, but can't recall the name or the source. Anyhoo, that's what I thought of as soon as I saw this work. I'd be curious to know what shape cylinder you'd need, though, to make these images look normal!

    2. My favorite work of art is Durer's (I don't know how to get an umlaut on that u) Melancholia I. It's got an angel of indiscriminate gender (when did we shift from thinking of angels as exclusively male to using the name "Angel" for women?), platonic solids, a magic square, a comet, a rainbow, drawing/navigational tools, and carpentry tools. But what is it about? I find it endlessly fascinating. Check it out at
    http://www-groups.dcs.st-and.ac.uk/~history/Misc el laneous/Durer/Melancholia.html

    3. Another example of mathematical interesting... um, -ness, in art is Celtic design. You can check out a discussion of it in "Turbulent Mirror" (http://www.amazon.com/exec/obidos/ASIN/0060916966 /qid=1028039334/sr=1-1/ref=sr_1_1/103-5270790-4159 806)

    --
    Who moderates the meta-moderators?
    1. Re:a few things by Anonymous Coward · · Score: 0
      During the Renaissance, I think it was (or maybe the 1700s), there was a genre of painting/drawing that involved using a highly reflective cylinder in the center of the work while creating it. The result was that the picture was distorted until you placed the cylinder in the center--then you could see in the cylinder itself the undistorted image.
      It's known as "anamorphic art".
    2. Re:a few things by magic · · Score: 2

      Reminiscent of Paul Debevec's light probes.

      -m

  42. Re: oops ... by guybarr · · Score: 1

    you're right, he was born in 1898, but his works are more like 40-80 years old, not 100.

    like I said though, Escher, with no disregard to his briliance, did not do his main work in a technical field.

    --
    Working for necessity's mother.
  43. Escher put himself in the center by nucal · · Score: 3, Interesting

    Isn't the artist where art and reality meet? Maybe that's what Escher was getting at ... after all - it's not just a blank spot, he put his signature there. If so, then filling in the "spot" may actually change the point of the drawing.

  44. the spot by John+Harrison · · Score: 3, Interesting
    I agree that the spot adds to the intrigue of the work. I doubt that Escher "couldn't figure out what to put there" as others have suggested. He left it there on purpose, since he had already implied what the contents of it are.

    Looking at the print you are drawn to the spot, just as the person depicted on the right side of the work seems to be. What does he see? If you think about it you realize that he sees the same thing you do, the back of his head. He is observing the same work you are. By including the spot Escher makes you part of the picture. If the person on the right is "Observer #1" and the person he is looking at is "Observer #2" you are "Observer #0". If the spot were filled in it wouldn't have the same effect. Go to the site and spend some time looking at the original work and the filled in version. I find that the original give a different sense of wonder and point of view than the new one.

  45. According to Hofstadter... by mwhansen · · Score: 5, Informative

    On page 717 in Godel, Escher, Bach, Hofstadter explains the "central blemish" as follows...

    "Though the blemish seems like a defect, perhaps the defect lies in our expectations, for in fact Escher could not have completed that portion of the pircture without being inconsistent with the rules by which he was drawing the picture. The center of the whorl is -- and must be -- incomplete. Escher could have made it arbitrarily small, but he could not have gotten rid of it."

    What Lenstra was able to do was to figure out the structure of the picture. From there, he was able to generate a suitable center so that none of the relationships between the four various pieces are disrupted.

    This is the reason why this is some pretty neat work.

    1. Re:According to Hofstadter... by CaptainCarrot · · Score: 2

      Perhaps the mathematical relationship between the pieces of the picture were left intact, but it destroys the self-contained nature of the piece. The idea is that the boy is looking at the same picture he's standing within. Lenstra has created nothing more than a "Droste" picture with elliptical distortions. (If you look at the zoomed versions of the filled-in drawing, there's another copy of the boy in it.) If that's all Escher had wanted to do, he would have selected a different grid as the foundation of his drawing; filled in like this the grid is nonsensical.

      --
      And the brethren went away edified.
  46. Math and Art by lardcanoe · · Score: 1

    If you really want to understand art by using math, check out Richard Taylor's research on Pollock drip paintings.

    http://materialscience.uoregon.edu/taylor/art/sp la sh.html

    I did a mini-thesis for my art minor on this.

    --

    ** Curb Your Enthusiam **
  47. art & ambiguity by obtuse · · Score: 1

    Attributing intention to an artist is an arrogant thing to do, so here I go. My interpretation is based on my feelings about the picture.

    Escher knew what went in the middle. One of the beauties of certain mathematical curves is that they can be intuitively obvious. You can visualize them far better than you can draw them, and far more easily than you could detail the mathematics. Experience with with psychedelics demonstrates this for fractals in particular.

    The picture you cited with the center filled in is less interesting than Eschers's original. I remember being troubled by the white space too, thinking he was just too lazy to finish the picture. It has grown on me, and to me, that space places the viewer inside the picture.

    In my opinion, that sort of ambiguity is one of the things that can take what would just be glib graphic design, and make art of it, involving the viewer. Commercial art can't afford ambiguity in interpretation, but fine art can.

    Escher may not have been making an intentional mathematical statement, but he intuited the shape quite well. He also realized that the picture is more interesting oriented around that empty space.

    --
    Assembly is the reverse of disassembly.
    1. Re:art & ambiguity by Steve+Franklin · · Score: 1

      You need to look at Escher's works as a whole. There is generally nothing at all left to the imagination. It is not his style. The art is about the illusion, not about making anybody think, except possibly about the illusion itself. This particular painting is thus an anomaly and I would argue that it is an anomaly precisely because it fails in a most uncharacteristic way. Specifically, it fails because Escher, the non-mathematician, has literally bitten off more than he can paint. Look at the reconstruction again and the mathematical process required to obtain it. This is a process way beyond that of even the most intuitive of artists and THAT, I am afraid, is why it is left blank.

      --
      Hic iacet Arthurus, rex quondam rexque futurus.
    2. Re:art & ambiguity by Anonymous Coward · · Score: 0

      Perhaps it's a little of both. He may have stopped trying to figure out what went in the middle because he knew he couldn't draw that level of detail anyway.

    3. Re:art & ambiguity by Steve+Franklin · · Score: 1

      After thinking about it a little longer, I realized that most of Escher's work involved polar opposites that he managed to link together, like a mobius bottle or in some other way. You'll notice there's a circle on Escher's version of the grid, so that what he appears to be doing is painting a picture of a picture that includes itself, but not in the kind of infinite regression represented by the Droste effect. The picture inside of the picture in Escher's painting is the first picture itself, not a third one contained within it. If this is true, it doesn't really matter what's at the center of the painting, though I still think his solution is a bit crude.

      My favorite Escher painting is Ascending and Descending, the one of the monks walking up and down the staircase that feeds back on itself. That one's based more on false perspective than any mathematical concept, though I suppose it could be represented mathematically. There's actually an open space at the center of that one too, but it's integrated into the image as a stairwell whose bottom is obscured, so it doesn't jump out at you.

      --
      Hic iacet Arthurus, rex quondam rexque futurus.
    4. Re:art & ambiguity by Anonymous Coward · · Score: 0

      He left that open space in the stairwell because he didn't know what to draw there. :P

  48. I flatly disagree by Anonymous Coward · · Score: 0

    Escher's other works have proven that he is quite capeable of amazing things, including the details of that spot.

    In this picture, each "world" contains the next, creating a recursive circle. That spot is the closest thing there is to a boundry between them. My theory is that it was left blank on purpose...partly to avoid the establishment of a boundry, and partly to engage the imagination of the reader.

    I find it quite profound that every point of the picture spirals down in to nothing at all.

    $0.02

  49. Mathematical connections in art, music and science by selan · · Score: 2

    What great timing! The Bridges conference was just held this weekend. It's all about work like this--stuff that bridges between math, art, music, and science. Neat stuff!

  50. Godel, Bach, Escher by Anonymous Coward · · Score: 1, Informative

    This whole thing has been discussed with a lot of insightful details in
    http://www.amazon.com/exec/obidos/ASIN/0465026 567/ ref%3Dnosim/robotbooks-20/104-8470745-1045520

    1. Re:Godel, Bach, Escher by Anonymous Coward · · Score: 0

      Why this message is scored as 0 while the following one, which clones its content scores 3? Is the moderation system messed up? This one should be 3 and the other one should be 1:redundant, no?

    2. Re:Godel, Bach, Escher by Kredal · · Score: 1

      Far less people see things from ACs than they do from logged in people. The default is set to reading at 1, remember? And it's been proven that once 1 mod point is given, you're much more likely to get another one, than the average post is.

      So the AC post is relegated to a life of 0, and the logged in post (which, truthfully, is worse because it doesn't have a link to Amazon), will probably make it to 5 before too long.

      --
      Whoever stated that signature sizes should be limited to one hundred and twenty characters can just go ahead and kiss my
  51. Artchive (Slashdot Effect!) by fm6 · · Score: 2

    Here's a copy on Artchive. This site claims 25,000 hits a day, so they should be relatively Slashdot-Effect-resistent. Don't forget the tip jar!

    1. Re:Artchive (Slashdot Effect!) by linzeal · · Score: 1

      Omg, please donate there. They need all the help they can get.

  52. Godel, Escher, Bach by kirkb · · Score: 2, Offtopic

    Wow, I can't beleive that no slashdotter has mentioned Douglas Hofstadter's excellent book "Godel, Escher, Bach: An Eternal Golden Braid"

    The book is over 20 years old and still a must-read for anyone who is interested in CS and/or art and/or music. It's fun, funny, and will make your brain hurt.

    Grab it at your favorite book store|website.

    --
    Slashdot: come for the pedantry, stay for the condescension.
    1. Re:Godel, Escher, Bach by Sanga · · Score: 1

      still a must-read for anyone who is interested in CS and/or art and/or music.

      I would not go as far as that. It is a must read for any interested in CS and/OR cognitive research/science.

      At least that is what DRH says he aimed for in the preface to the 20th anniversary edition.

    2. Re:Godel, Escher, Bach by Anonymous Coward · · Score: 0

      Who's the fuckin' asshat who marked this as offtopic? The topic here is relationships between Escher's artwork and advanced mathematics. The book that he mentions covers the EXACT SAME stuff!

  53. Re:MOD PARENT DOWN by Anonymous Coward · · Score: 0

    Well thought out? Oh please. By giving credence to this stupid post, which they do in every single article, you're helping these idiots.

    Comment quota is discriminatory because it limits idiots to 2 posts a day? Hmm, sounds fair to me. Perhaps if they tried posting on topic...

    Trying to break Slashdot is a good thing because it helps it test for bugs? How benevolent of those people, they're a true asset to the Slashdot community. Wait, they're actually a pain in the ass for all of us.

    Moderating that post down supports RIAA and MPAA because it supports censorship? Riiiight. Get off the crack pipe.

    I'm really disappointed to see this drivel being supported by someone with a low UID, who I would hope would know better.

  54. the article: copy n pasted to save you the 30 secs by thatrez · · Score: 3, Informative

    In a flight to the Netherlands, Dr. Hendrik Lenstra, a mathematician, was leafing through an airline magazine when a picture of a lithograph by the Dutch artist M. C. Escher caught his eye. Titled "Print Gallery," it provides a glimpse through a row of arching windows into an art gallery, where a man is gazing at a picture on the wall. The picture depicts a row of Mediterranean-style buildings with turrets and balconies, fronting a quay on the island of Malta. As the viewer's eye follows the line of buildings to the right, it begins to bulge outward and twist downward, until it sweeps around to include the art gallery itself. In the center of the dizzying whorl of buildings, ships and sky, is a large, circular patch that Escher left blank. His signature is scrawled across it. As Dr. Lenstra studied the print he found his attention returning again and again to that central patch, puzzling over the reason Escher had not filled it in. "I wondered whether if you continue the lines inward, if there's a mathematical problem that cannot be solved," he said. "More generally, I also wondered what the structure is behind the picture: how would I, as a mathematician, make a picture like that?" Most people, having thought this far, might have turned the page, content to leave the puzzle unsolved. But to Dr. Lenstra, a professor at the University of California at Berkeley and the University of Leiden in the Netherlands, solving mathematical puzzles is as natural as breathing. He has been known, when walking to a friend's house, to factor the street address into prime numbers in order to better fix it in his mind. So Dr. Lenstra continued to mull over the mystery and, within a few days of his arrival, was able to answer the questions he had posed. Then, with students and colleagues in Leiden, he began a two-year side project, resulting in a precise mathematical version of the concept Escher seemed to be intuitively expressing in his picture. Maurits Cornelis Escher, who died in 1972, had only a high school education in mathematics and little interest in its formalities. Still, he was fascinated by visual mathematical concepts and often featured them in his art. One well-known print, for instance, shows a line of ants, crawling around a Moebius strip, a mathematical object with only one side. Another shows people marching around a circle of stairs that manage, through a trick of geometry, to always go up. The goal of his art, Escher once wrote in a letter, is not to create something beautiful, but to inspire wonder in his audience. Seeking insight into Escher's creative process, Dr. Lenstra turned to "The Magic Mirror of M. C. Escher," a book written (under the pen name of Bruno Ernst) by Hans de Rijk, a friend of Escher's, who visited the artist as he created "Print Gallery." Escher's goal, wrote Mr. de Rijk, was to create a cyclic bulge "having neither beginning nor end." To achieve this, Escher first created the desired distortion with a grid of crisscrossing lines, arranging them so that, moving clockwise around the center, they gradually spread farther apart. But the trick didn't quite work with straight lines, so he curved them. Then, starting with an undistorted rendition of the quayside scene, he used this curved grid to distort the scene one tiny square at a time. After examining the grid, Dr. Lenstra realized that carried to its logical extent, the process would have generated an image that continually repeats itself, a picture inside a picture and so on, like a set of nested Russian wooden dolls. Thus, the logical extension of the undistorted picture Escher started with would have shown a man in an art gallery looking at print on the wall of a quayside scene containing a smaller copy of the art gallery with the man looking at a print on the wall, and so on. The logical extension of "Print Gallery," too, would repeat itself, but in a more complicated way. As the viewer zooms in, the picture bulges outward and twists around onto itself before it repeats. Once Dr. Lenstra understood this basic structure, the task was clear: If he could find an exact mathematical formula for the repetitive pattern, he would have a recipe for making such a picture with the missing spot filled in. Measuring with a ruler and protractor, he was able to estimate the bulging and twisting. But to compute the distortion exactly, he resorted to elliptic curves, the hot topic of mathematical research that was behind the proof of Fermat's last theorem. Dr. Lenstra knew he could apply elliptic curve theory only after reading a crucial sentence in Mr. de Rijk's book. For esthetic reasons, Mr. de Rijk explains, Escher fashioned his grid in such a way that "the original small squares could better retain their square appearance." Otherwise, the distortion of the picture would become too extreme, smearing individual elements like windows and people to the point that they were no longer recognizable. "At first, I followed many false leads, but that sentence was the key," Dr. Lenstra said. "After I read that, I knew exactly what was happening." Escher was creating a distortion with a well-known mathematical property: if you look at small regions of the distorted picture, the angles between lines have been preserved. "Conformal maps," as such distortions are known, have been extensively studied by mathematicians. In practice, they are used in Mercator projection maps, which spread the rounded surface of the earth onto a piece of paper in such a way that although land masses are enlarged near the poles, compass directions are preserved. Conformal principles are also used to map the surface of the human brain with all the folds flattened out. Knowing that Escher's distortion followed this principle, Dr. Lenstra was able to use elliptic curves to convert his rough approximation of the distortion into an exact mathematical recipe. He then enlisted a Leiden colleague, Bart de Smit, to manage the project and several students to help him. First, the mathematicians had to unravel Escher's distortion to obtain the picture he started with. A student, Joost Batenburg, wrote a computer program that took Escher's picture and grid as input and reversed Escher's tedious procedure. Once the distortion was undone, the resulting picture was incomplete. Some of the blank patch in the center of "Print Gallery" translated into a blurred swath spiraling across the top of the picture. So, the researchers hired an artist to fill in the swath with buildings, pavement and water in the spirit of Escher. Starting with this completed picture, Dr. de Smit and Mr. Batenburg then used their computer program in a different way, to apply Dr. Lenstra's formula for generating the distortion. Finally, they achieved their goal: a completed, idealized version of Escher's "Print Gallery." In the center of the mathematician's version, the mysterious blank patch is filled with another, smaller copy of the distorted quayside scene, turned almost upside-down. Within that is a still smaller copy of the scene, and so on, with the remaining infinity of tiny copies disappearing into the center. Since Escher's distortion was not perfectly conformal, the mathematician's rendition differs slightly from his in other ways as well. Away from the center, for example, the lines of some of the buildings curve the opposite way. The researchers also used their program to create variations on Escher's idea: one in which the center bulges in the opposite direction, and even an animated version that corkscrews outward as the viewer seemingly falls into the center. After a recent talk Dr. Lenstra gave at Berkeley, the audience remained seated for several minutes, mesmerized by the spiraling scene. While Dr. Lenstra has solved the mystery of the blank patch and more, one question remains. Did Escher know what belonged in the center and choose not to represent it, or did he leave it blank because he didn't know what to put there? As a man of science, Dr. Lenstra said he found it impossible to put himself inside Escher's mind. "I find it most useful to identify Escher with nature," he said, "and myself with a physicist that tries to model nature." Mr. de Rijk, now in his 70's, said he believed Escher knew his picture could continue toward the center, but did not understand precisely what should go there. "He would be astonished to experience that his print was still much more interesting than was his intention," Mr. de Rijk said. He added that while he knew of another effort to fill in Escher's picture, it was not based on an understanding of the mathematics behind it. "He was always interested when somebody used his prints as a base for further study and applications," Mr. de Rijk said. "When they were too mathematical, he didn't understand them, but he was always proud when mathematicians did something with his work."

  55. A better explanation? by Snart+Barfunz · · Score: 1

    is that the blank spot is a visual reference to the spot in anamorphic art where the viewer has to place a cylindrical or conical mirror to 'decode' the image. This is something that Escher was very familiar with and a fascinating study in its own right. The whole drawing can be seen as a visual pun on anamorphic drawings.

    --
    --- Yx3 = Delilah ---
  56. Its not a blank space by funkmastermike · · Score: 0, Redundant

    Its the flash from the camera.
    yeah...everyones a critic

  57. Re:MOD PARENT DOWN by Anonymous Coward · · Score: 0
    The two post rule is incorrect because it is based on karma. With the knee-jerk moderation around here, make a couple of well reasoned on topic posts about the deficiences of Linux and you're branded.

    If Taco really wanted to facillitate a free community disucssion (including legitimate dissenting opinions), he'd
    1. Set the default reading threshold to 1
    2. ACs post at 0
    3. Only allow up moderation of good posts
    4. karma = up mods / total posts
    (Actually, they'd need to implement fractional values for thresholds. But at least no one could be barred just for having contrary views.)
  58. Gonna get to you girl by dg123 · · Score: 0
    • Step 1: We can have lots of fun
    • Step 2: There's so much we can do
    • Step 3: It's just you and me
    • Step 4: I can give you more
    • Step 5: Don't you know that the time has arrived
  59. Examine if you will by bembleton · · Score: 1
    Step 1: Stare at this part of the rendition: Escher and the Droste effect
    Step 2: Get up off the floor. Stop trying to turn your head upside down to view the center

    I was very interested to find out that this work was considered a Droste picture. Without the center, there is no clear definition between recursions, so it appears to be one continuous drawing, whereas you can clearly see a repeated picture in most every other Droste effect.

    My favorite Escher piece is Up and Down . The symmetry is very easy to see, although it never ceases to amaze me how he drew 2 point of perspective of the same scene in one fluid picture, a ceiling and a floor existing as one and the same. If he had drawn the sketch as if he was halfway up/down the tower, the top and bottom portion of the picture could be taped together in a loop, connecting the floor to the ceiling again!

    1. Re:Examine if you will by Anonymous Coward · · Score: 0

      Huh? Where's the symmetry and wtf are you talking about connecting the floor to the ceiling??

    2. Re:Examine if you will by Anonymous Coward · · Score: 0

      nevrmind, i scrolled down to see all of the drawing and I get it.

  60. Re:MOD PARENT DOWN by Anonymous Coward · · Score: 0

    Once again, oh please. Taco can do whatever he wants, you're not a customer that's demanding better service for something you actually paid for, but rather a user of a private site run by someone that can set any kind of rules he wants. Oh, which also happen to be fair rules that 99% of the users appreciate and respect.

    No one has ever gotten to be limited in posting by posting a few "well reasoned on topic posts." The trolls that are feeling the heat are the ones posting stupid porn links and other garbage. All of your "demands" already exist - users can set default threshold to anything they want, ACs post at zero, goods posts get modded up, your karma is a result of "up mods."

    I don't have a lot of pity for someone posting "Linux sucks" posts on a primarily pro-OSS site. You have to know who your target audience is when you post, and if your audience doesn't like what you have to say, that's not censorship, but rather you choosing the wrong crowd to be preaching to.

  61. Where are the masters? by fishbowl · · Score: 2

    These are lithographs, stone etchings that were
    used to print onto ink soluble media, right?

    I hope the masters are safe somewhere, and that the technique for printing with them isn't a lost art already.

    A gif of the image or an iron-on t-shirt simply doesn't have a certain quality that seeing an original print of this type of work does have.

    I remember two life-changing moments in the development of my art appreciation:

    1. Seeing a Van Gogh painting in a museuem gallery.

    I had seen this picture many, many times, in books, on posters, etc. It is a very simple painting of sunflowers. But when I saw the real thing, it absolutely took my breath away. There is a third dimension to the paint that is utterly lost in a photograph of it, and there are qualities to the color of the original that would be impossible to describe, and a photograph only comes so close to capturing this, and only for one angle, one set of light conditions, etc.

    2. Salvador Dali's Psychedelic Toreador.
    I have had a print of this painting for years, and see something different in the detail every time I look at it. However, I never realized how very large Dali's original paintings are! There is extraordinary detail that might be well-reproduced on a laser print, but even if the details are there, something is lost.

    I'm not an artist or an art student, so I surely lack the language to say what I'm trying to say here. I suppose it's that I would like to see this etching in person, and that I'm really interested in the process used to make this type of work. Oh, and that in 10,000 years, the alien archaeologists will find the stone originals intact.

    --
    -fb Everything not expressly forbidden is now mandatory.
  62. Redundant by Dan+D. · · Score: 1

    I think MC escher was being cool. The space was an "Etc..." :)

    --
    People who quote themselves bug the crap out of me -- Me.
  63. Panties in a twist by RatBastard · · Score: 1

    I'm amazed at all the posters who are getting their panties in a twist over this; claiming it is a waste of time or a debasement of th "art" of the image.

    Is it a waste of time? It's his/her time to spend in any way that pleases him/her. Many would say that Linux, and other OSS projects are a complete waste of time and that you'd be better of persuing thier pet project. What I see a LOT here is an amazing level of myopia with people so convinced that thier pet project is the ONLY possible "productive" use for anyone's time that it makes one ill. One person's "must do!" is another person's "why bother?".

    As for teh argument of somehow sullying the "art" with "math" or "science"; why is it so bad to analyze something to see the underlying structure and better understand it? Is it a debasement of nature to see teh fractal designs in a flower? Is it a debasement in the work of a great composer or painter to see the mathematical complexity and subtlety in their work? Can you not appreciate the beauty of a work if you know the level of complexity that went into it? Must enjoyment and understanding always be seperated by a wall of ignorance?

    Of all the things that have diminished here in the last few years, a sense of perspective seems to be the one most reduced.

    --
    Boobies never hurt anyone. - Sherry Glaser.
  64. Damned Thespians!! by farmgeek · · Score: 1

    Say it! Say her name!

    You know you want to.

    C'mon, you can do it.

    MacBeth!

    "Scottish play" indeed.

  65. im in the art world by Anonymous Coward · · Score: 0

    background: im a studio art major, emphasis painting/printmaking. in the art world we dont consider escher a true artist. in fact im "secretly" a fan of his. to broadcast something like being a fan of ecscher roughly translates to working with OSS and secretly loving mr.gates.

    pthree
    if youd like examples, "credentials" if you will i have most of my art up on my site:

    http://www.diversionmary.com

  66. Ahh slashdot lamers by Anonymous Coward · · Score: 0

    I have the most practical response of all.
    Two practical down to earth reasons he might have
    left this spot blank:
    1As the folcrom for the curves complex or not
    2) where else is he going to sign his work?
    3)Just enjoy the work!

  67. The picture is obviously by Anonymous Coward · · Score: 0

    in a state of quantum flux. The photo is both a man looking at a boat and a boat in a harbor. To decide which one is the "real" state (i.e. filling in the dot) would drive you insane.

    Which one do you think it is?
    A. Man looking at a boat in an art gallery
    B. A boat in a harbor
    C. AUUUUGGGGGHHHHHHHH!!!!!!

    If you answered 'C', please report to your nearest mental institution immediately.

  68. Oops. by tlambert · · Score: 2

    That's what you get for assuming. It's not a Droste effect picture at all.

    It's the world projected flat as seen from the inside of a Klein bottle. The empty space in the middle is the mouth of the bottle.

    That's also why the signature, litho number, and other information is in the center: it's the only unused portion of the surface, which encompasses the entirety of the world.

    The clue is the embedding of the gallery in the outside world, but the outside world in the image in the gallery.

    Escher is well known for projections of images onto/into objects (e.g. his self portrait on the reflective sphere held at arm's length).

    It's amusing that some well-meaning person would come along and try to put a cap on Escher's Klein bottle.

    -- Terry

  69. oh, come now, join in the spirit of the thing! by melquiades · · Score: 2

    Escher knew what he was doing -- and so did the people who did this research. I don't think they were trying to improve on the drawing; they just entered into the intellectually playful spirit of Escher's art, and started asking questions and making cool pictures.

    As the NYT article points out, Escher himself was always thrilled when people found his artwork to be a springboard into new research and new ideas. He was always very derisive of highbrow artistic purism, and I imagine he would have been delighted with these new images.

    The original print is great, and so is this research.

  70. The site has it all wrong by Kaz+Riprock · · Score: 1
    Escher actually used an increasingly complex elliptical array. Instead of a power law zoom which continually loops itself much like their avi's and mpg's, you would need to move increasingly faster to see the constant swirl of the pattern in a way that would make sense.

    If you view this complex array that Escher used, you wouldn't get an upside-down reduced version of the image inside the "empty circle". You'd get something in what your eyes would perceive to be a small white dot with something that looks a lot like Escher's signature...

    So the painting *is* finished...it's just you're not complex enough to see it.

    --
    Mordor...a magical, mythical land where women are more rare than dragons--but where every man would rather find a dragon
  71. Re:Flipping Burgers... by InOverMyFeet · · Score: 1

    I could have subbed 'flipping burgers' with 'asking would you like fries with that' but I'm sure my point was just as well received.

    --

    -- Probability does not dismiss possibility --

  72. Actually, it REALLY says: by naasking · · Score: 1

    "We apologize for the inconvenience"

  73. That would be Rick /Wright/ of Pink Floyd by Anonymous Coward · · Score: 0

    That would be Rick /Wright/ of Pink Floyd

  74. How do I know they are new... by os2fan · · Score: 2

    One does not need a formal education to read the papers on the subject, or to write to their authors. All the same, I can more or less make out the mathematics, and the pictures inspire me. Whether I could *write* maths like that is unlikely.

    On the other hand, I am not restricted to their pictures. I can see other things in my mind, and my maths, although not rigourously proven, is as good for producing results as any other. It's just home-grown on a different soil, that's all.

    Maths, unlike Linux or French, can be done without any contact with the products of the existing structure. You can not participate in Linux or French without access to an existing source of Linux or French (including source and read-only material).

    If your whole experience is with Arabic and DOS, then you will not be able to invent French or Linux yourself. On the other hand, you may derive the whole body of mathematics without access to any mathematical work or mathematician. If you develop like this, and then come in contact with the established body, you can compare notes, and see if you are in front of them or behind them.

    --
    OS/2 - because choice is a terrible thing to waste.