# Friday math movie: The beautiful math of coral (and crochet)

By Murray Bourne, 09 Aug 2013

Coral reefs are disappearing, due to water pollution, dragnet fishing and acidification due to global warming.

Margaret Wertheim tells us the story of how she uses crochet to promote the important message of saving the reefs.

The video is one of the highly recommended 8 Math Talks to Blow Your Mind by TED.

See the 1 Comment below.

### One Comment on “Friday math movie: The beautiful math of coral (and crochet)”

1. daniel says:

an interesting application of crotchet, thanks for sharing the video!

### Comment Preview

HTML: You can use simple tags like <b>, <a href="...">, etc.

To enter math, you can can either:

1. Use simple calculator-like input in the following format (surround your math in backticks, or qq on tablet or phone):
a^2 = sqrt(b^2 + c^2)
(See more on ASCIIMath syntax); or
2. Use simple LaTeX in the following format. Surround your math with $$ and $$.
$$\int g dx = \sqrt{\frac{a}{b}}$$
(This is standard simple LaTeX.)

NOTE: You can mix both types of math entry in your comment.