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350-Year-Old Newton's Puzzle Solved By 16-Year-Old

First time accepted submitter johnsnails writes "A German 16-year-old, Shouryya Ray, solved two fundamental particle dynamic theories posed by Sir Isaac Newton, which until recently required the use of powerful computers. He worked out how to calculate exactly the path of a projectile under gravity and subject to air resistance. Shouryya solved the problem while working on a school project. From the article: 'Mr Ray won a research award for his efforts and has been labeled a genius by the German media, but he put it down to "curiosity and schoolboy naivety." "When it was explained to us that the problems had no solutions, I thought to myself, 'well, there's no harm in trying,'" he said.'"

43 of 414 comments (clear)

  1. That Moment by Rie+Beam · · Score: 5, Interesting

    We all had that moment in school when a teacher would pose an "impossible" problem, thought to ourselves "Well, they've never faced ME before!", spent a few minutes toying with it and finally giving up. This kid...did not.

    Kudos all around! The rest of your life will, unfortunately, now no longer live up to something you accomplished when you were 16.

    1. Re:That Moment by __aaltlg1547 · · Score: 5, Interesting

      There are two things impressive about this. One is the fact that you mention, that the kid did not give up until he had the solution and was smart enough to solve a problem that stumped every mathemetician for 350 years. The second is that people still try to solve difficult analytic problems at all instead of just turning it into a computing problem.

      I don't know which surprises me more.

    2. Re:That Moment by mwvdlee · · Score: 5, Funny

      The rest of your life will, unfortunately, now no longer live up to something you accomplished when you were 16.

      Imagine the freedom of no longer having to live up to anybody's expectations. ;)

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    3. Re:That Moment by chill · · Score: 4, Informative

      Germany still produces some rays of light.

      To be accurate... he was born in India and moved to Germany with his family at age 12. He did not speak a word of German when he arrived.

      While credit must be given to the German school system, I think most of his accomplishment comes from him and possibly his family.

      --
      Learning HOW to think is more important than learning WHAT to think.
    4. Re:That Moment by rvw · · Score: 4, Interesting

      Germany still produces some rays of light.

      To be accurate... he was born in India and moved to Germany with his family at age 12. He did not speak a word of German when he arrived.

      While credit must be given to the German school system, I think most of his accomplishment comes from him and possibly his family.

      And maybe from not being in Europe or the western world the first twelve years of his life, adopting beliefs or creating a mental attitude that stuff like this cannot be done. And I'm not criticizing the Germans.

    5. Re:That Moment by Chris+Mattern · · Score: 5, Insightful

      Analytic solutions are far superior to computed approximations. They are far easier to calculate--computers have made computed approximations far easier, but most of the time that doesn't mean that they're *easy*--only that they're now possible. Being able to obtain the answer in a small fraction of the time is still a big advantage. They are more precise and do not require initial parameters. And they provide much greater understanding and insight into the underlying phenomenon. There is no surprise at all that people are still looking for analytic solutions.

    6. Re:That Moment by K.+S.+Kyosuke · · Score: 4, Insightful

      Computing tends to be a brute force analysis of all the possible inputs.

      Hello? We've had symbolic computing ever since 1960's. There are many software tools today to assist mathematicians with creating and verifying proofs (e.g, Coq is probably the best known one). What's wrong with using them? Not to do that would be like using a pencil and paper instead of typing when you're preparing a publication – I'd think that brain power and time should be used constructively.

      --
      Ezekiel 23:20
    7. Re:That Moment by iamhassi · · Score: 4, Interesting

      Also he solved it without mooching off a company for 2 months (and still having nothing to show for it) or asking for $500,000! No $$$$ up front and he still brought results! This 16 yr old will go far, I would happily donate to this kid's next .... whatever he wants to do, since he's already earned it in my opinion.

      --
      my karma will be here long after I'm gone
    8. Re:That Moment by Anonymous Coward · · Score: 5, Funny

      I just wanted to say that I LOVE Coq.

    9. Re:That Moment by tixxit · · Score: 4, Informative

      The article states the father taught him calculus when he was 6. However, his father also says the kid passed his understanding a while ago and he doesn't understand the math used to solve this problem. Seems like the father was responsible for instilling a curiosity and some foundations, but after that it's all just this kid. You gotta give him credit.

    10. Re:That Moment by gd2shoe · · Score: 4, Insightful

      Ha! Inventing a new mathmatical system in order to solve a problem is cheating! But it works.

      Not only is it cheating, it's tradition. We have many great branches of mathematics because of it.

      --
      I won't join Slashcott. OTOH, If Beta goes live, I just won't be back until it's fixed. Sorry Dice.
    11. Re:That Moment by Pseudonym · · Score: 4, Insightful

      Analytic solutions are not necessarily easier to calculate.

      Analytic solutions tend to involve special functions for which the computer can only compute an approximation anyway. Have you ever tried to write code to evaluate the error function over the entire domain of floating point numbers? (Yes, I know, it's now in the standard library; ten years ago, it wasn't.) That's one of the easier ones.

      Even if there are no special functions, analytic solutions are still often harder to calculate if the problem is big enough. Think of solving systems of linear equations, one of the standard workhorses of numeric programming. We're talking really big ones; hundreds of thousands of equations in hundreds of thousands of unknowns or bigger. In the real world, this problem would almost certainly be solved using successive approximations, even though high school students know how to solve them analytically.

      Finally, and most importantly, the problem statement is usually an approximation. Take the OP as an example. What this kid almost certainly solved was an analytic solution to the problem of a particle in a gravitational field with linear air resistance. Well, air resistance is not linear. At low velocities, and for projectiles with a sufficiently small cross-section, it's close enough. But it's still an approximation.

      The advantages of analytic solutions are almost always not computational. What they buy you is understanding. The methods of obtaining the solution, and the form of the final equations, often reveal some deep insights about the problem. For many situations, that's far more valuable. And it's certainly something that no computer can give you.

      --
      sub f{($f)=@_;print"$f(q{$f});";}f(q{sub f{($f)=@_;print"$f(q{$f});";}f});
    12. Re:That Moment by galaad2 · · Score: 4, Informative

      I'd reserve your hosannas until this kid's magic formula gets published, along with a formal statement of the problem.

      the formula has already been published, here: https://www.jugend-forscht.de/images/1MAT_67_download.jpg
      (photo of the formula taken on May 18th)

      article source:
      https://www.jugend-forscht.de/index.php/projectsearch/detail/6038.4568
      and
      http://www.jufo-dresden.de/projekt/teilnehmer/matheinfo/m1

      i can't find the full paper yet though, but on reddit some users claim that the formula works in Maple
      e.g.
      http://www.reddit.com/r/worldnews/comments/u7551/teen_solves_newtons_300yearold_riddle_an/c4szejb

      where f is constant on the path the particle makes in the space of velocities:
      f:=(g^2 /(2*u^2 ) + a*(g/2)*(v*sqrt(u^2 +v^2 )/(u^2 ) + arcsinh(v/u)));

      --
      root@127.0.0.1
  2. terrible article by Anonymous Coward · · Score: 5, Insightful

    The article itself is mathless. It doesn't tell you what the solution was, or even present the exact problem that was solved.

    1. Re:terrible article by sco08y · · Score: 5, Interesting

      The article itself is mathless. It doesn't tell you what the solution was, or even present the exact problem that was solved.

      And running a search for the kid's name turns up the same article fifty fucking times over. Google did some work on link farms... they need to do some work deduping / despamming press releases.

    2. Re:terrible article by ObsessiveMathsFreak · · Score: 4, Informative

      You are right. This article is awful, conveying no sense of the nature of the problem or its complexity, and giving no idea of the solution at all.

      The only equations I'm aware of for a falling particle subject to air resistance take the form

      m v' = -mg -a*v-b*v^2

      which is a constant coefficient Riccati differential equation for the velocity v. I'm reasonably sure this would have an analytic solution.

      Maybe complications arise in the 2D motion case, or perhaps the problem includes a particle which is also spinning. Maybe the drag terms take more complicated forms. I don't know. The article is pretty dreadful to be honest.

      --
      May the Maths Be with you!
    3. Re:terrible article by Smurf · · Score: 4, Informative

      That's "Analytische lösung von zwei ungelösten fundamentalen Partikeldynamikproblemen" or, in English, "Analytical solution of two fundamental unsolved problems of particle dynamics".

      But that doesn't seem to be a paper published in a peer-review journal, but rather the title slide of a presentation he gave on March 1, presumably when when he received the Jugend Forscht ("Young Researchers") award.

      And the kid is Indian, not German (as long as we can tell from the article).

      And this is a problem in Physics, not in Mathematics. It shocks me that people get that mixed up.

      And the kid looks 30 years old, but I would never hold that against him.

    4. Re:terrible article by jordan314 · · Score: 4, Informative

      I was pretty disappointed that Slashdot wouldn't find the equation for this. I ended up finding it on reddit: http://www.reddit.com/r/worldnews/comments/u7551/teen_solves_newtons_300yearold_riddle_an/c4sxd91

  3. Specifics? by Rie+Beam · · Score: 4, Insightful

    Can anyone actually find the problems in question somewhere? I've been scouring Google and the whole thing is very vague -- no story really goes into depth about the actual problem he solved and how.

    1. Re:Specifics? by Slippery_Hank · · Score: 5, Interesting

      The problem he solved is determining the exact path of a projectile, when accounting for air resistance. The drag coefficient for air resistance depends nonlinearly on velocity, so when it is included in the model the equations become difficult to solve (previously impossible, but apparently now done. Though I haven't found any links to his actual work). Here is an example of setting up the problem, and then solving it numerically.

    2. Re:Specifics? by HeLLFiRe1151 · · Score: 4, Informative

      This is an article from 1983. I believe it explains the problem.

      http://www.annualreviews.org/doi/pdf/10.1146/annurev.fl.15.010183.000245

      --
      I've got 101 mod points and you can't have them!
  4. Difference between Germany and the US by Anonymous Coward · · Score: 4, Insightful

    German media praise math geniuses, while american media praise hollywood actors/actresses (read: human rubbish) and reality show weirdos. In the US a "genius" is someone who makes millions, especially with lower education and without being able to do anything. That's "free market economy", and "supply and demand", right?

    "The land of the free and of the brave" (with some fat on the belly).

  5. When in Doubt... by Rie+Beam · · Score: 4, Informative

    ...go to the source! The German articles I've scoured seem to have a little more information about the problem itself and what he actually accomplished. The oldest one only records that he "claims" to have solved them (earlier this month), but so far no actual data. Close.

    http://www.enso-blog.de/jugend-forscht-drei-arbeiten-aus-ostsachsen-beim-bundeswettbewerb
    http://www.morgenpost.de/vermischtes/article106358144/16-jaehriger-Schueler-loest-uraltes-Mathe-Problem.html

  6. Gotcha! by Rie+Beam · · Score: 4, Informative

    http://jugend-forscht-sachsen.de/2012/teilnehmer/fachgebiet/id/5

    Text is in German. It all stems from a Youth Research competition he entered into back in March of this year. This is, so far, the best summary I've found -- there is a paper, apparently, but no link just yet.

    'Two problems in classical mechanics have withstood several centuries of mathematical endeavor. The first problem is therefore to calculate the trajectory of a body thrown at an angle in the Earth's gravitational field and Newtonian flow resistance. The underlying power law was discovered by Newton (17th century). The second problem is the objective description of a particle-wall collision under Hertzian collision force and linear damping. The collision energy was derived in 1858 by Hertz, a linear damping force has Stokes (1850) is known. This paper has so far only the analytical solution of this approximate or numerical targets for the problems solved. First, the two problems are solved fully analytically. For the first problem will be investigated further using the analytical solution, the physical behavior of the system and set up outline solutions for generalized models. For the second problem is carried out in order to increase efficiency and convergence control a semi-analytical optimization. Finally, the analytical results are compared with numerical solutions so as to validate accuracy and convergence to numerically."

    1. Re:Gotcha! by Rie+Beam · · Score: 4, Interesting

      On a sad note, he only placed 2nd in the overall competition :(

    2. Re:Gotcha! by St.Creed · · Score: 4, Interesting

      Number one cured cancer AND solved the world's energy problem. That's hard to top. :)

      --
      Therefore, by the (faulty) logic you're using, you're just a cow with a keyboard - osu-neko (2604)
    3. Re:Gotcha! by bcrowell · · Score: 5, Informative

      That helps a little, but still doesn't really clarify completely what he did. I'll explain a little about what I know about the projectile problem and what I can figure out about what he might have accomplished here.

      In the Principia, Newton poses three closely related problems. One is projectile motion under the influence of a frictional force that's proportional to velocity (book II, section I). Next he considers the case where the friction is proportional to the square of the velocity (book II, section II), and finally the case where it's of the form av+bv^2, where a and b are constants (book II, section III). Let's call these cases 1, 2, and 3.

      Case 1 is pretty straightforward. The x and y motions are decoupled, and each of the motions is governed by a first-order, linear, inhomogeneous equation.

      Case 2 is actually of more physical interest than case 1 for most real-world projectiles. For example, when you toss a baseball in air, its Reynolds number is about 10^4 or 10^5, and in that regime, a force proportional to v^2 is a pretty decent approximation. There is a well known closed-form solution for the one-dimensional subcase (I actually had a student a few years back who figured it out for herself, which was impressive), which is y=A ln[cosh(t sqrt(g/A))].

      A hint is that this page has a photo of him holding up a large sheet of paper with his closed-form solution on it. The equation is clearly visible, and reads g^2/(2u^2)+(alpha g/2)[v sqrt(u^2+v^2) / u^2 + arsinh |v/u|] = const. The notation isn't explained, but clearly u and v are the components of some vector, probably the velocity vector. If so, then the constant alpha has to have units of inverse meters.

      This makes me think that what he's solved is the full two-dimensional version of case 2. It can't be case 3, because besides g there is only the one constant alpha appearing in his equation. If you write down the equation of motion, a=F/m=(mg-bv^2)/m=g-(b/m)v^2, the constant that naturally occurs is b/m, which has units of inverse meters. It also makes sense that his solution has a hyperbolic trig function in it, since the y(t) for the one-dimensional version of case 2 has a hyperbolic trig function in it.

      If my interpretation is right, then you should get a correct one-dimensional result from his equation when u=0. Unfortunately his equation blows up to infinity in that case, so I'm not sure how to extract any sane interpretation from it. By setting alpha=0, you should also get the case with zero friction. That does sort of make sense, since it says u is a constant, which it should be in that case.

      It would be interesting to see if my interpretation is right by doing a numerical simulation and seeing if his expression really does seem to be a constant of the motion.

      One thing to point out is that he may not have actually solved the full problem as set by Newton. He hasn't found the equation of the trajectory in closed form (which I think was what Newton was most interested in), and he also hasn't found the position in closed form as a function of time. (This is all assuming my interpretation is right.)

    4. Re:Gotcha! by Anonymous Coward · · Score: 4, Informative

      You're right, he's demonstrated a constant of motion (i.e. a first integral) in the 2D version of Newton's Case 2. The constant alpha in his equation is what you called b. Gravity points in the -v direction.

      You can easily check this by differentiating his equation with respect to time, and then eliminating the derivatives of u and v using the expressions

      du/dt = -b u sqrt(u^2 + v^2)
      dv/dt = -b v sqrt(u^2 + v^2) - g

      His solution can probably be extended to Case 3 quite easily, if anyone feels like a challenge :)

  7. Re:are those problems NP? by geoskd · · Score: 4, Interesting

    The problems he solved are not NP. They are essentially calculus, but they are both very nasty calc problems, and the traditional way to solve calc problems is using newton approximations until the answer is close enough to what you want. An analytical / precise way to solve these problems is extremely useful to the physics folks, as the solution will probably also lead to better models of particle motion.

    -=Geoskd

    --
    I wish I had a good sig, but all the good ones are copyrighted
  8. Fermat & Poincaré by Bananatree3 · · Score: 4, Interesting

    Andrew Wiles solved Fermat's Last Theorm with paper only, as he despised the use of computers in writing mathematical Proofs. Another famous example is Grigori Perelman who solved the Poincaré Conjecture - with hundreds and hundreds of pages of mind-numbingly dense mathematics vs computer search.

    1. Re:Fermat & Poincaré by Chase+Husky · · Score: 5, Interesting

      Another famous example is Grigori Perelman who solved the Poincaré conjecture - with hundreds and hundreds of pages of mind-numbingly dense mathematics vs computer search.

      Perelman's three primary papers ("The entropy formula for the Ricci flow and its geometric applications" http://arxiv.org/abs/math.DG/0211159, "Ricci flow with surgery on three-manifolds" http://arxiv.org/abs/math.DG/0303109, and "Finite extinction time for the solutions to the Ricci flow on certain three-manifolds" http://arxiv.org/abs/math.DG/0307245) on modifying Hamilton's Ricci flow program to deal with singularities and proving Thurston's geometrization conjecture only span 68 pages, with the actual proofs/meaningful remarks comprising about 45 pages of that.

  9. Re:I thought these were pretty much known already by Anonymous Coward · · Score: 5, Informative

    You forgot a lot of things:
    -gravity is not a constant vector force downward. It is a radial force inward toward the center of the Earth, and its intensity varies with altitude.
    -air resistance is not constant either. It depends on air pressure which varies with altitude as well.
    -air resistance is not perfectly proportional to v^2, especially at transonic and supersonic speeds.
    -if the projectile is spinning, it may cause a net aerodymamic force in a direction other than -v. Like a curveball.
    -the earth is a spinning frame of reference, which results in various annoying effects.
    -the air is not necessarily stationary. Wind exists.
    and so on.

    But we don't know whether this dude accounted for any of this stuff or not, because the goddamn article doesn't tell us.

  10. Flash journalism by yoctology · · Score: 5, Insightful

    These stories about overwhelming acts of personal genius, especially stories that lack the details of the alleged act, are, without memorable exception, false. But we all like a good story about an under-caste upsetting gray hairs and the established order of things.

    Think about that for a moment. A story supposedly lionizing science lacking the most basic facts that would permit substantial verification, or falsification, of that science. This is just flash journalism at work.

    1. Re:Flash journalism by FrangoAssado · · Score: 4, Informative

      Since we're linking to comments from Reddit: people also found out that this solution was known since at least 1860, and was published in a modern journal in as recently as 1977.

      It's great that a 16 year old discovered this, and it could have been a cute (but not as flashy) story. But the reporter didn't even bother to talk to someone familiar with the field.

  11. Re:Explain the mind of a genius? by ebcdic · · Score: 4, Insightful

    No. The problem is to determine the trajectory from the initial position and velocity. A human tracks the ball as it moves, which is a completely different problem.

  12. Re:Explain the mind of a genius? by 2.7182 · · Score: 5, Interesting

    I was not a prodigy, but a really smart kid who was in many environments with prodigies or near prodigies.

    My experience has been that most pre-teen children with this history don't understand the material very well, and there tends to be a lot of exaggeration about it. Smart kids are good at mimicking things and that is all that is really need to "do" the first year or two of college math.

    Occasionally, but very occasionally you get someone really young who later goes on to do decent, or even more rarely great things, like Norbert Wiener or Terry Tao. But I would like to hear those people give their opinions of the depth of their understanding at that age.

    I knew Nadine Kowalsky, who in HS would essentially just remember everything she heard in class and got 100 on every exam. (She wasn't the only one though. I knew a number of other people like that though that didn't do as well as Nadine did.) She later went on to get a Ph.D. from Chicago and published her thesis in the Annals of Math. That is a journal most mathematicians can't get a paper in. Like publishing in Nature or Science. Nadine was the real deal, but sadly she died of cancer not long after finishing her Ph.D. But I don't believe that Nadine was doing calculus until she was 15. And that was certainly on purpose. She, and her parents apparently, knew what was a good idea to do, and not to do, with a super smart kid. (This last sentence is conjecture on my part.)

    But I think most cases of pre-teens you hear about are really not what they are made out to be. Once you get to 12 or 13 those, I think things do change a lot.

  13. Re:Explain the mind of a genius? by Lumpy · · Score: 5, Insightful

    I was doing advanced Geometry and Algebra at age 8, yes I'm a slow fool compared to this kid. but it's mostly the quality of teachers (his dad) and the willingness to keep giving a kid what they want and challenging them.

    The american school system is designed to DISCOURAGE this. Smart kids are told to be happy with the A they got without trying. If they challenge their teachers knowledge they are told they are wrong. Mostly because Grade-High-school education in the USA is simply following a lesson out of a book and not teaching it from an expert. the Gym teacher teaches computer class, The English teacher teaches Chemistry, and all of it creates a ho hum boring as hell experience for the children.

    Here in the USA we do NOT want geniuses, we want good factory and office workers. Mediocre will not challenge authority.

    yes I am jaded at the education system here. I was one of them that got bad grades because the teachers were idiots. I challenged my math teacher who could not believe that a kid can do multiplication and simple geometry in his head. I proved it on several occasions, but I was given failing grades for not doing the busywork of writing it all out. Plus I refused to learn his technique. It sucked and was harder than what I was using that came from college text books. So I ended up being a pissed off moody kid hating the education system because all I saw was idiots and morons trying to tell me they knew more than Me and I knew that they were wrong. I was reading at a 14th grade level when I was 12 years old. I read 1984 and understood the concepts and hidden meanings. I was devouring Vonnegut with a passion. I was told that the books were "too grown up for me" Everyone talked down to me and all it did was piss me off.

    Sadly I did not have rich parents, so I had to suffer through the waste of time that the American Public School system is. College I slept through and aced it, at least they were not morons requiring me to turn in worthless busy work. It was in college where I ran into real education, educators that actually knew what they were talking about and would actually hold a discussion with me and help me learn more.

    This is the problem here in the USA. If you are smart, you have a sack put over your head to slow you down to match the rest of the other students.

    --
    Do not look at laser with remaining good eye.
  14. Re:Explain the mind of a genius? by drinkypoo · · Score: 4, Insightful

    Here in the USA we do NOT want geniuses, we want good factory and office workers. Mediocre will not challenge authority.

    I've shared this and I'll share it again (and again...) but when I was in third grade I had an asshole, authoritarian teacher who I believe was only at my school for a couple of years. He was a lazy, arrogant, abusive asshole. When one was done with one's work one was to literally lay one's head down on one's desk and wait quietly for the other children to finish. I was in trouble on numerous occasions for "looking at the other children". I wrote so many lines I had wrist problems before I ever owned a computer or even discovered masturbation.

    Sadly I did not have rich parents, so I had to suffer through the waste of time that the American Public School system is.

    I went to a private school for a couple of years, before my parents broke up and there wasn't enough money because my dad was a deadbeat. I was about to be learning algebra, I was learning Spanish (I had great retention back then, and I never forgot some of the words I learned back then... though "ferrocarril" does have a fantastic ring to it, no?) and so on. Then I was placed literally into kindergarten due to my age and went from actually learning at a satisfying pace to being told lies about American colonization, making flags out of construction paper and placing Dead-President's-Head's stickers on them, and the like. After a year of that I spent two weeks in first grade before being bumped up to second, where I was still doing work inferior to what I'd been doing in my previous school.

    This is the problem here in the USA. If you are smart, you have a sack put over your head to slow you down to match the rest of the other students.

    Especially if you are smart, but your parents are dysfunctional and can't teach you how to blend in because they know fuck-all about how social situations work.

    College I slept through and aced it, at least they were not morons requiring me to turn in worthless busy work.

    Alas, I discovered life about the same time I went to college for the first time and besides, by that time I was prejudiced against education. What really shat upon my educational aspirations at that time, though, was a counselor who suggested I take a fully practical case load and save my electives for later. If I could remember who that was, I would send them a picture of my asshole right now. Hated it. Made school just a big bore of a chore. Most counselors don't give one tenth of one fuck about you as a person or even as a student, you're just a convenient unit that can be used to fill out slightly empty classes. What, am I bitter? Why do you ask?

    Now I have a two-year degree from going back to school much later, but it wasn't convenient for me to matriculate to a four-year at the time and now what do I do with this extra piece of paper? It's too crisp to be good bumwad.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  15. Re:Explain the mind of a genius? by Dolphinzilla · · Score: 5, Insightful

    I have to agree with your comment about learning DE, I failed differential equations the first time I took the class (a D-grade) I was taking engineering course work at the time that required them - and what they actaully "meant" clicked in an electrical networks class - when I took the class again (my university had a 1 time grade forgiveness policy) I got an A - it seemed trivial and simple the second time around in a different context. I general I have mathematics makes mroe sense to me personally when I can relate it to a real world problem - Mathematics taught as rote learning is a horrible thing - some of us can't do it that way....

  16. Re:Explain the mind of a genius? by TheDarkMaster · · Score: 5, Insightful

    "Here in the USA we do NOT want geniuses, we want good factory and office workers. Mediocre will not challenge authority."

    Exactly. And I tell you, is the same thing here in Brazil.

    --
    Religion: The greatest weapon of mass destruction of all time
  17. Re:Explain the mind of a genius? by the+gnat · · Score: 5, Informative

    ...it does publish great papers, but does require something of a personal connection to get into... Same for The Proceedings of the National Academy of Sciences

    Actually, this isn't so true of PNAS any more. One of the previous editors decided in the late 1990s to raise the quality prestige of the journal by accepting more papers through a traditional peer-review route, as opposed to NAS members "communicating" or "contributing" articles (which would often have minimal peer review). This was very successful, and now most articles in PNAS get in through the front door, and they're slowly eliminating the back doors. The overall quality is pretty good - not as high-impact as Science or Nature or some of the top specialty journals, but it's definitely a journal that researchers are excited about publishing in if they can't get into the top tier. The fact that they're not part of Elsevier or one of the other big commercial publishers, and their open-access fee is very reasonable, is an added bonus. (Disclaimer: I've published there, so I'm not entirely unbiased.)

    Now, as with any journal, knowing the right people always helps - sadly, this is true at any level.

  18. Re:Explain the mind of a genius? by plover · · Score: 5, Interesting

    Exactly. As a kid, I had a dog that understood when I threw a ball up on the roof of our garage, which caused it to disappear from her sight, that it would roll along the slope of the roof and and reappear further down the roofline. She actually got fairly good at predicting where the ball would reappear, repositioning herself along its path over time so she would meet it at its eventual drop point. Does that mean my dog understood calculus, or solved Newton's problem? Well, she recognized a pattern and was able to apply a repeatable solution.

    That tells me that the brain is capable of recognizing complex patterns around us, and is actually already very capable of deriving and applying practical solutions. ("So easy a dog could do it.") Applying abstract mathematical models to them, however, is not so easy.

    What I'd be most interested in in this whole saga is "what methods did his father use to teach him math?" Obviously they were highly effective.

    --
    John
  19. Re:Explain the mind of a genius? by abigsmurf · · Score: 4, Insightful

    The number of times I read rants against (maths) teachers for holding back students and then halfway through it they drop "just because I don't show my working!" bombshell.

    Teachers are doing this for your benefit, not theirs. If you can hand in your homework with just the answers and get them all correct, great, but if you hand in the homework and get some wrong, the teacher won't have any idea where you went wrong, whether you used the wrong method when solving it or if you just made a simple error with the arithmetic. 99.9% of kids, even the ones who think they don't need to show their working because they know to do it, will at some pointstruggle with something and need help.

    The UK exam system drills this into you pretty early, only 1 mark out of 3 or 4 being awarded for the correct answer, the rest being awarded for the method used. By the time you get to A-level (High school) maths, you're even given the answer beforehand and asked to "show that x = 5".

    Ultimately the working out is usually more important in maths than the answer. You won't win a Fields medal for "Fermat's late theorem : it was correct. The end"