## Wild About Math bloggers 10/22/10

[ Here's my Wild About Math Bloggers post from last week. This week's article is at Equalis. ]

I begin this week's tour of the Math Blogosphere with news of the death of Benoit Mandelbrot, the father of fractal geometry. Mandelbrot, in fact, coined the term "fractal" in 1975.

- Rudy's Blog has a nice article, with beautiful images: Remembering Benoit Mandelbrot.
- The TED Blog comments on Mandelbrot's legacy.
- Scientific American reports on Mandelbrot's passing.
- Scientific American has republished a 1985 article on "how simple computer programs could be used to view fractal pioneer Benoit Mandelbrot's eponymous set."

The "Adventure Edition" of the Math Teachers at lay Carnival has been posted:

Mixing play with learning math is so much more effective for my kids. So, here are some great ideas on how to take the “boring” out of learning math and make it an Adventure.

Check out the beautiful illustrations!

Denise at Let's Play Math points us to Free Math History: Number Stories of Long Ago, a book published in 1919 and available on to download as a free download from Google Books.

Have you ever wondered What does 20/20 vision mean? Well, ready Murray's article at Square Circle Z, understand the Math, and wonder no more.

Have you heard of the play, A Disappearing Number? I've not seen it but after reading about it at Mathematics Rising, I'm intrigued.

It isn’t often that the human experience of mathematics is explored in the arts, but it does happen. A Beautiful Mind and Proof are two recent examples of math-related dramas. But it seems that, by many accounts, A Disappearing Number has succeeded in weaving mathematics itself into the mystery of human lives. The play premiered in England in 2007 but was performed again this past July at Lincoln Center.

Did you know that x^n + y^n = z ^(n-1) has infinitely many solutions for n >= 3? Wow! Hat tip to CTK Insights What a difference a minus one makes! for this gem that adds a small twist to Fermat's Last Theorem.

Here's an interesting article from PhysOrg.com: Analyzing almost 10 million tweets, research finds public mood can predict Dow days in advance. The title says it all.

Measurements of the collective public mood derived from millions of tweets can predict the rise and fall of the Dow Jones Industrial Average up to a week in advance with an accuracy approaching 90 percent, Indiana University information scientists have found.

Finally, courtesy of Shecky, is a nice Mandelbrot video with great music.

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