An elegant demonstration of beauty in mathematics (and landscape). Nikki Graziano
is a math and photography student at Rochester Institute of Technology; some of her photographs were recently featured in Wired
. Graziano "overlays graphs and their corresponding equations onto her carefully composed photos. ... Graziano doesn’t go out looking for a specific function but lets one find her instead. Once she’s got an image she likes, Graziano whips up the numbers and tweaks the function until the graph it describes aligns perfectly with the photograph."
posted by jokeefe
on Feb 8, 2010 -
"Back in 1993 I was tutoring my sister in algebra
. Her quizzes and tests were always made of word problems with a running storyline involving many recurring places and characters. I tied the fate of the main characters to how well she did on the previous quiz, so a good performance brought them good fortune. Unfortunately, one test she completely bombed, and, well, this
is a transcription of the quiz she got next." [more inside]
posted by Iridic
on Feb 3, 2010 -
Early elementary school teachers in the United States are almost exclusively female (>90%), and we provide evidence that these female teachers’ anxieties relate to girls’ math achievement via girls’ beliefs about who is good at math.
A study (abstract
and full-text [pdf]
) by the University of Chicago Department of Psychology and Committee on Education found a link between math anxiety in elementary school teachers and their female students' math abilities. [more inside]
posted by albrecht
on Jan 28, 2010 -
The beauty of roots.
From Dan Christensen
and Sam Derbyshire via John Baez. If you like algebra: these are plots of the density in the complex plane of roots of polynomials with small integral coefficients. If you don't: these are extravagantly beautiful images produced from the simplest of mathematical procedures. Explore the image interactively here
posted by escabeche
on Jan 4, 2010 -
Alice's adventures in algebra: Wonderland solved
"Outgunned in the specialist press, Dodgson took his mathematics to his fiction. Using a technique familiar from Euclid's proofs, reductio ad absurdum, he picked apart the "semi-logic" of the new abstract mathematics, mocking its weakness by taking these premises to their logical conclusions, with mad results. The outcome is Alice's Adventures in Wonderland."
posted by dhruva
on Dec 16, 2009 -
"I can see the audience tonight, so I can see also from the size of it that there must many of you here who are not thoroughly familiar with physics, and also a number that are not too versed in mathematics- and I don't doubt that there are some who know neither physics nor mathematics very well.
That puts a considerable challenge on a speaker who is going to speak on the relation of physics and mathematics- a challenge which I, however, will not accept: I published the title of the talk in clear and precise language, and didn't make it sound like it was something it wasn't- it's the relation of physics and mathematics - and if you find that in some spots it assumes some minor knowledge of physics or mathematics, I cannot help it. It was named."
The Feynman Messenger series at Cornell
has been made available online for the first time thanks to Bill Gates.
posted by hindmost
on Jul 15, 2009 -
Logicomix: An Epic Search for Truth
by Apostolos Doxiadis, Christos H. Papadimitriou, Alecos Papadatos, and Annie Di Donna.
Covering a span of sixty years, the graphic novel Logicomix was inspired by the epic story of the quest for the Foundations of Mathematics. This is another kind of epic battle that does not quite lead where the characters thought it would take them. Featuring Bertrand Russell
as narrator and the awesome might of the villain (of sorts) Incompleteness
. Themes include the high personal price paid for knowledge.
posted by incompressible
on Apr 29, 2009 -
One night, very late, I was browsing the internet, using my current computer, Shalosh B. Ekhad, III. I was searching for "Ekhad". All of a sudden, to my amazement, I chanced on a website whose last update was Sept. 30, 2050, and found this little Elementary Geometry textbook.
This text may seem a bit strange to 2001 humans. It appears that there are no proofs, only statements, in Maple, using English-based names for the definitions and theorems. But THE STATEMENT IS THE PROOF
, ready to be run on Maple, that will output "true" if the proof-statement is correct, and "false" otherwise. [more inside]
posted by orthogonality
on Feb 18, 2009 -
Hunting the Hidden Dimension.
You may be familiar with fractals, but in this PBS Nova episode, divided online into 5 parts, fractals go beyond the impossible zoom of the Mandelbrot set
. Scientists are using fractals to describe complex natural occurrences, like lava
, and rain forests
. In part 5, scientists measure one tree in the rain forests, and the distribution of small and large branches mirror the distribution of small and large trees. Fractals, it seems, are nature
posted by plexi
on Nov 2, 2008 -
Whether you want to learn to lace shoes, tie shoelaces, stop shoelaces from coming undone, calculate shoelace lengths or even repair aglets, Ian's Shoelace Site
has the answer!
posted by Blazecock Pileon
on Jun 27, 2008 -