Old video, but in case anyone wants to see metronomes syncing in action.

https://www.youtube.com/watch?v=yysnkY4WHyM

I also like the video on this page:

(http://sciencedemonstrations.fas.harvard.edu/icb/icb.do?keyw...)

(http://youtu.be/yVkdfJ9PkRQ)

This is very interesting. I've always struggled with Mathematics. Recently I got a Dover book on Trigonometry, and I finally understood what radians are!

Now I know there are folks here who intuitively grasp mathematics - I see and sometimes envy their grasp of the material - but I'm finding that I'm enjoying understanding the most basic of mathematical concepts. There's something incredibly satisfying about it all.

Given my screen name, one would suspect that I like this article. :-)

Math should be a joy. I wish I had heard of this book sooner. I certainly added it to my wish list in Amazon. http://www.amazon.com/The-Joy-Guided-Tour-Infinity/dp/054751...