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Keyword: math

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  • Numbers Game

    06/10/2008 6:20:36 AM PDT · by fings · 2 replies · 100+ views
    Bo (woof) In Commentary: Some think this dog is amazing. Me, I’m not surprised. (In case you missed this one, a Mission Viejo woman’s dog — a 9-year-old cockapoo known as Cookie Einstein — has become a celebrity of sorts for her apparent mathematical abilities, the O.C. Register’s Niyaz Pirani reported over the weekend. She [Cookie] adds, subtracts, multiplies, divides and calculates square roots and simple algebra through barking. And Cookie can answer if the question’s asked in either English or Spanish.) Bi-lingual and good in math…she must have scored well on her SATs. Cookie won’t respond to anybody but...
  • Where mathematics and astrophysics meet

    06/06/2008 12:26:09 PM PDT · by Red Badger · 23 replies · 123+ views
    www.physorg.com ^ | 05 June 2008 | Source: American Mathematical Society
    Einstein rings produced by a galaxy behind the lensing galaxy. The sources are actually extended and that is why one sometimes sees arcs rather than complete rings. Credit: Photo credit: NASA, ESA, and the SLACS Survey team: A. Bolton (Harvard/Smithsonian), S. Burles (MIT), L. Koopmans (Kapteyn), T. Treu (UCSB), and L. Moustakas (JPL/Caltech) The mathematicians were trying to extend an illustrious result in their field, the Fundamental Theorem of Algebra. The astrophysicists were working on a fundamental problem in their field, the problem of gravitational lensing. That the two groups were in fact working on the same question is...
  • Are you smarter than the 6th-grade MathCounts champion?

    05/10/2008 7:05:35 PM PDT · by LJayne · 16 replies · 101+ views
    Michelle Malkin ^ | 5/10/08 | Michelle Malkin
    The prestigious Lockheed Martin MATHCOUNTS National Competition took place yesterday. You don't get there by learning Everyday Math crap. It's the real deal. The winner of the individual contest was an 11-year-old 6th-grader from Bellevue, Washington, Darryl Wu. Here was the winning question. Can you solve it? And, oh, by the way, the question was timed. Darryl came up with the answer in less than 45 seconds.
  • Aztec Math Decoded, Reveals Woes Of Ancient Tax Time

    04/04/2008 8:10:23 AM PDT · by blam · 16 replies · 191+ views
    National Geographic News ^ | 4-3-2008 | Brian Handwerk
    Aztec Math Decoded, Reveals Woes of Ancient Tax Time Brian Handwerk for National Geographic NewsApril 3, 2008 Today's tax codes are complicated, but the ancient Aztecs likely shared your pain. To measure tracts of taxable land, Aztec mathematicians had to develop their own specialized arithmetic, which has only now been decoded. By reading Aztec records from the city-state of Tepetlaoztoc, a pair of scientists recently figured out the complicated equations and fractions that officials once used to determine the size of land on which tributes were paid. Two ancient codices, written from A.D. 1540 to 1544, survive from Tepetlaoztoc. They...
  • Avoiding Math and Science Like the Plague

    03/31/2008 6:59:33 AM PDT · by too much time · 47 replies · 1,114+ views
    TownHall ^ | 03/31/08 | Armstrong Williams
    Take a minute to think about the following: When was the last time you made a mathematical calculation in your head or by hand (yes which means not using a calculator)? Surely, some of you avoid math like the plague – especially when your teenage child comes around looking for help on their math homework – but you must admit that even in this compalculator era it comes in handy to be able to tally your bills in your head or figure out the miles per gallon you’re getting while driving along in traffic. Surely it seems reasonable to expect...
  • Israeli ex-security guard solves 38-year-old math problem (Universal Map?)

    03/21/2008 11:46:03 AM PDT · by Squidpup · 48 replies · 2,086+ views
    Haaretz ^ | March 20, 2008 | AP
    A mathematical mystery that has baffled top minds in the field of symbolic dynamics for nearly four decades was cracked last year by a 63-year-old former Israeli security guard. Avraham Trakhtman, a mathematician who worked as a laborer after immigrating to Israel from Russia, succeeded in solving the elusive Road Coloring Problem. The conjecture assumes that it is possible to create a universal map that would direct people to arrive at a certain destination, at the same time, regardless of their original location. Experts say this proposition, which seems to defy logic, could actually have real-life applications in the fields...
  • After 38 years, Israeli solves math code[Road Coloring Problem]

    03/20/2008 8:22:05 PM PDT · by BGHater · 59 replies · 3,638+ views
    AP ^ | 20 Mar 2008 | ARON HELLER
    JERUSALEM - A mathematical puzzle that baffled the top minds in the esoteric field of symbolic dynamics for nearly four decades has been cracked — by a 63-year-old immigrant who once had to work as a security guard. Avraham Trahtman, a mathematician who also toiled as a laborer after moving to Israel from Russia, succeeded where dozens failed, solving the elusive "Road Coloring Problem." The conjecture essentially assumed it's possible to create a "universal map" that can direct people to arrive at a certain destination, at the same time, regardless of starting point. Experts say the proposition could have real-life...
  • Pi, Pi, Mathematical Pi (vanity)

    03/19/2008 5:18:09 PM PDT · by Paul Heinzman · 9 replies · 926+ views
    http://www.vvc.edu/ph/TonerS/mathpi.html ^ | Antoni "Ton" Chan & Ken Ferreir
    My daughter, Anna, shared this with me this today. I thought I'd share it with my FRiends. Pi, Pi, Mathematical PI
  • Panel Urges Schools to Emphasize Core Math Skills

    03/14/2008 7:03:36 PM PDT · by Amelia · 30 replies · 436+ views
    The Washington Post ^ | March 14, 2008 | Maria Glod
    A presidential panel declared math education in the United States "broken" yesterday and called on schools to focus on ensuring that children master fundamental skills that provide the underpinnings for success in higher math and, ultimately, in high-tech jobs.... ...Scores from the 2006 Program for International Student Assessment showed 15-year-olds in the United States trailed peers from 23 industrialized countries in math. The panel stressed that many students are simply befuddled by fractions.... ....In a culture in which parents say they "weren't good at math either," children assume they don't have the talent for numbers. The panel said that research...
  • Democrat Math Just Doesn’t Add Up!

    02/23/2008 9:21:47 PM PST · by jdm · 13 replies · 161+ views
    Flopping Aces ^ | Feb. 23, 2008 | Staff
    With both Hillary and Obama promising billions in freebies, who’s going to pay after they kill the Goose that lays the Golden Eggs? Suppose that every day, ten men go out for beer and the bill for all ten is $100. If they paid their bill the way we pay our taxes, it would go something like this:The first four men (the poorest) would pay nothing. The fifth would pay $1. The sixth would pay $3. The seventh would pay $7. The eighth would pay $12. The ninth would pay $18. The tenth man (the richest) would pay $59.So, that’s...
  • Math + religion = Trouble

    01/28/2008 9:20:07 AM PST · by forkinsocket · 46 replies · 137+ views
    The Star ^ | Jan 26, 2008 | Ron Csillag
    Which math-phobic among us has not beseeched God for help with another colon-clenching algebra or calculus exam? Had we heeded the words of the German mathematician Leopold Kronecker, perhaps we would have realized we've been talking to the wrong person: "God made the integers; all else is the work of man." Pythagoras, who gave us his eponymous theorem on right-angled triangles, headed a cult of number worshippers who believed God was a mathematician. "All is number," they would intone. The 17th-century Jewish philosopher Baruch Spinoza echoed the Platonic idea that mathematical law and the harmony of nature are aspects of...
  • Medieval Mosque Shows Amazing Math Discovery

    01/17/2008 7:24:05 AM PST · by forkinsocket · 93 replies · 814+ views
    Discover Magazine ^ | 01.09.2008 | John Bohannon
    The mosques of the medieval Islamic world are artistic wonders and perhaps mathematical wonders as well. A study of patterns in 12th- to 17th-century mosaics suggests that Muslim scholars made a geometric breakthrough 500 years before mathematicians in the West. Peter J. Lu, a physics graduate student at Harvard University, noticed a striking similarity between certain medieval mosque mosaics and a geometric pattern known as a quasi crystal—an infinite tiling pattern that doesn’t regularly repeat itself and has symmetries not found in normal crystals (see video below). Lu teamed up with physicist Paul Steinhardt of Princeton University to test the...
  • An unfortunate loss of a good joke: leftist thinking finally overtakes math parody

    01/09/2008 3:30:42 AM PST · by mattstat · 17 replies · 120+ views
    There was an old, and sadly funny joke about the Evolution of Math Quizzes that went like this: 1960s A logger cuts and sells a truckload of lumber for $100. His cost of production is four-fifths of that amount. What is his profit? 1970s New-math A logger exchanges a set (L) of lumber for a set (M) of money. The cardinality of Set M is 100. The set C of production costs contains 20 fewer points. What is the cardinality of Set P of profits? 1980s A logger cuts and sells a truckload of lumber for $100. Her cost is...
  • Math Advance Threatens Computer Security

    01/04/2008 10:44:14 PM PST · by neverdem · 57 replies · 307+ views
    DISCOVER ^ | 12.28.2007 | Stephen Ornes
    An international team of mathematicians announced in May that they had factored a 307-digit number—a record for the largest factored number and a feat that suggests Internet security may be on its last legs. “Things are becoming less and less secure,” says Arjen Lenstra, a computer scientist at the École Polytechnique Fédérale (EPFL) in Switzerland, who organized the effort. Messages in cyberspace are encrypted with a random 1,024-bit number generated by multiplying two large primes together. But if hackers using factorization can break the number into its prime multipliers, they can intercept the message. Factorization currently takes too long to...
  • Calling all mathematicians!

    12/31/2007 5:33:59 AM PST · by mtbopfuyn · 22 replies · 119+ views
    vanity
    I’m sure this is elementary but I need some help with a probability. Two trains leave the station…. nooo, scratch that. Let’s say there are two Track and Field competitions, one is the 500 meter and the other is hurdles. Neither competition is harder than the other, just slightly different. 500 meter competition – The top 4 places from local competition advance to the preliminary competition and meet with 3 other groups of top 4 placers. Those 16 compete and the top 2 make THE BIG TA-DAH! Hurdles competition – Only the 1st place person from the local competition advances...
  • Elementary Math Grows Exponentially Tougher

    12/26/2007 9:10:30 PM PST · by Amelia · 211 replies · 375+ views
    Washington Post ^ | December 26, 2007 | Maria Glod
    ...Tegethoff used to teach what she called "very boring math," using worksheets of addition and subtraction problems. Now her lessons delve into algebraic thinking. By the third grade, Viers Mill Elementary students are solving equations with letter variables. Long considered a high school staple, introductory algebra is fast becoming a standard course in middle school for college-bound students. That trend is putting new pressure on such schools as Viers Mill to insert the building blocks of algebra into math lessons in the earliest grades. Disappointing U.S. scores on international math tests have added to the urgency of a movement that...
  • Traffic jam mystery solved by mathematicians (someone alert the Fed)

    12/24/2007 9:11:40 PM PST · by ckilmer · 88 replies · 417+ views
    Physorg ^ | December 19, 2007 | University of Exeter
    Traffic jam mystery solved by mathematicians Mathematicians from the University of Exeter have solved the mystery of traffic jams by developing a model to show how major delays occur on our roads, with no apparent cause. Many traffic jams leave drivers baffled as they finally reach the end of a tail-back to find no visible cause for their delay. Now, a team of mathematicians from the Universities of Exeter, Bristol and Budapest, have found the answer and published their findings in leading academic journal Proceedings of the Royal Society. The team developed a mathematical model to show the impact...
  • Activist Math

    12/20/2007 9:26:45 PM PST · by bs9021 · 24 replies · 259+ views
    Campus Report ^ | December 21, 2007 | Bethany Stotts
    According to M. J. Mcdermott, a meteorologist and Q13 Fox News (Seattle) weather reporter, the ongoing American mathematic illiteracy may be the result of misguided “reformed math” curriculum which fails to teach students the internationally recognized, efficient multiplication and division algorithms that older generations of Americans learned. Instead, children are encouraged to problem-solve without first developing efficient problem-solving techniques in multiplication and division. Math by CalculatorAs McDermott notes in her video, textbooks such as the 4th and 5th grade versions of Everyday Mathematics devote copious pages to non-germane topics such as a full-color 48-page world atlas to assist students in...
  • Monkeys and college students as good at mental maths (monkeys named "Boxer" and "Feinstein")

    12/19/2007 3:14:04 PM PST · by atomic conspiracy · 7 replies · 148+ views
    Reuters via Yahoo ^ | 12-18-07 | Julie Steenhuysen
    CHICAGO (Reuters) - Monkeys performed about as well as college students at mental addition, U.S. researchers said on Monday in a finding that suggests nonverbal math skills are not unique to humans. The research from Duke University follows the finding by Japanese researchers earlier this month that young chimpanzees performed better than human adults at a memory game. Prior studies have found non-human primates can match numbers of objects, compare numbers and choose the larger number of two sets of objects. "This is the first study that looked at whether or not they could make explicit decisions that were based...
  • Chimps and college students as good at mental math

    12/17/2007 7:04:08 PM PST · by NormsRevenge · 4 replies · 82+ views
    Reuters on Yahoo ^ | 12/17/07 | Julie Steenhuysen
    CHICAGO (Reuters) - Chimps performed about as well as college students at mental addition, U.S. researchers said on Monday in a finding that suggests non-verbal math skills are not unique to humans. The research from Duke University follows the finding by Japanese researchers earlier this month that young chimpanzees performed better than human adults at a memory game. Prior studies have found non-human primates can match numbers of objects, compare numbers and choose the larger number of two sets of objects. "This is the first study that looked at whether or not they could make explicit decisions that were based...