Just in case anybody seeing this missed the post earlier:
Article: https://news.ycombinator.com/item?id=7543691 Fourier Discussion: https://news.ycombinator.com/item?id=7544481
Direct link to Fourier animation: http://math.stackexchange.com/a/738048
More advice from the discussion: http://betterexplained.com/articles/an-interactive-guide-to-...