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Share your "aha!" moments

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  • 1.
    Khan Academy (www.khanacademy.org)

    800+ videos on YouTube covering everything from basic arithmetic and algebra to differential equations, physics, and finance which have been recorded by Salman Khan.

    1 point by Gary 2 months ago
    • comment
  • 2.
    James Burke's "Connections" (1-3) and "The Day The Universe Changed" (www.youtube.com)

    James Burke's classic documentaries breathes life into history by showing how it zigs and zags just like the present. This is a great way to learn history you never knew, and the real stories behind what you thought you knew

    1 point by grey matters 2 months ago
    • 1 comment
  • 3.
    ZVON Regular Expressions Tutorial (zvon.org)
    1 point by eterps 2 months ago
    • comment
  • 4.
    What's an eigenvector? (www.physlink.com)

    Excellent intuitive description of eigenvectors/eigenvalues

    3 points by Kalid 3 months ago
    • 1 comment
  • 5.
    How a differential works (www.youtube.com)

    Wonderful description of how a differential works, best I've seen. Builds up the use from core concepts.

    1 point by Kalid 3 months ago
    • 1 comment
  • 6.
    How maths killed Lehman Brothers (plus.maths.org)
    2 points by mux 3 months ago
    • comment
  • 7.
    Software Breakpoints (www.technochakra.com)

    An article that explains how software breakpoints work in debuggers.

    1 point by technochakra 4 months ago
    • comment
  • 8.
    The Hydrogen Myth (www.slideshare.net)

    Why hydrogen-powered vehicles will not help solve our energy or pollution challenges.

    1 point by ZLOB-o-ZLOB 4 months ago
    • comment
  • 9.
    Feynman on thinking (www.youtube.com)

    Excellent explanation about how we think about things differently: when you count in your head, do you say it to yourself, or see numbers go by?

    2 points by Kalid 4 months ago
    • comment
  • 10.
    Second law of thermodynamics (www.secondlaw.com)

    The Encyclopedia Britannica gave this site an Internet Guide Award and allows a direct search link here to its Concise Encyclopedia Articles.

    This site shows that some ancient questions about "things going wrong" in our lives
    have surprisingly simple answers in modern basic chemistry
    (even things happening to us which cause that painful cry of "Why me?")

    Still more important to one's philosophy about life, these chemical ideas can startle
    us into seeing how fortunate we all are: that things don't go wrong more often!

    2 points by anonymous 5 months ago
    • 1 comment
  • 11.
    Calculus Made Easy (www.scribd.com)
    5 points by gOcOOl 6 months ago
    • comment
  • 12.
    JSTOR All-Stars: Mathematics Magazine (www.maa.org)

    The JSTOR database is an archive of important scholarly journals, offering researchers high-resolution, scanned images of journal issues and pages. It now includes 4,780 articles from Mathematics Magazine, from 1947 to 2005.

    The most frequently accessed (total viewings plus total printings) Mathematics Magazine articles to date are:

    1 point by anonymous 6 months ago
    • comment
  • 13.
    Advanced Algebra II: Conceptual Explanations (cnx.org)

    "This is the Conceptual Explanations part of Kenny Felder's course in Advanced Algebra II. It is intended for students to read on their own to refresh or clarify what they learned in class. This text is designed for use with the "Advanced Algebra II: Homework and Activities" and the "Advanced Algebra II: Teacher's Guide" collections (coming soon) to make up the entire course."

    1 point by anonymous 7 months ago
    • comment
  • 14.
    betterexplained

    Get to like maths and numbers. to to appreciate to power of thinking. to understand why needed not to have suffered in the hands of maths teachers. here is your solution

    1 point by Ataluke 7 months ago
    • comment
  • 15.
    Prime Number Hide-and-Seek: How the RSA Cipher Works (www.muppetlabs.com)

    A pretty intuitive introduction to the math behind cryptography and how RSA works.

    1 point by timothy_luksha 7 months ago
    • 1 comment
  • 16.
    An Introduction to Lagrange Multipliers: An essential tool for convex optimization (www.slimy.com)

    Lagrange Multipliers are necessary to find the maximum values of a function subject to several constraints. This has many applications to all sorts of problems of mathematical optimization.

    1 point by francisco 7 months ago
    • comment
  • 17.
    Neil deGrasse Tyson -- On Astronomy (www.youtube.com)

    Great example of passion for a subject. This makes learning enjoyable for teacher & student :).

    3 points by kalid 8 months ago
    • comment
  • 18.
    Al's Relativistic Adventures (www.onestick.com)

    This flash site uses a simple story about a boy and his mother to clearly teach the principles of Einstein's Relativity Theory.

    2 points by grey matters 9 months ago
    • 1 comment
  • 19.
    The Socratic Method: Teaching by Asking Instead of by Telling (www.garlikov.com)

    Transcript of a third-grade lesson on binary numbers, using only questions and answers.

    5 points by A. Zeilstra 9 months ago
    • 1 comment
  • 20.
    Clear Explanation of "Short Squeeze" (radian.org)

    Great example of explaining a complex finance topic -- tells a story of short sales involving Porsche and VW.

    4 points by anonymous 10 months ago
    • comment
  • 21.
    Making sense of the standard deviation (amarsagoo.blogspot.com)

    Intuitive explanation of why RMS (root mean square) is used. Nice read.

    1 point by kalid 11 months ago
    • comment
  • 22.
    How to Ace Calculus: The Art of Doing Well in Technical Courses (calnewport.com)

    Interesting article on how to develop insights and "aha" moments in technical courses.

    1 point by kalid 11 months ago
    • comment
  • 23.
    The Exponential Function (www.youtube.com)
    6 points by anonymous 11 months ago
    • comment
  • 24.
    Painting the mona lisa with genetic algorithm (rogeralsing.com)

    Great example of "show, not tell" -- use a genetic algorithm with random mutations to recreate the Mona Lisa, using only 50 overlapping triangles.

    3 points by Kalid 11 months ago
    • comment
  • 25.
    The MegaPenny Project (www.kokogiak.com)

    A good complement to Kalid's "How to develop a sense of scale" article.

    2 points by d_malt 11 months ago
    • 2 comments
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