Galileo's Pendulum

I have been a busy little boy so far this week (I’ve written five articles for Ars Technica alone, which will be appearing over the next few days), so no regular blog post today. However, I do have an announcement that might interest the regular readers of this blog: I am now the physics and astronomy editor for ScienceSeeker.org! I’ll be selecting some of the best physics and astronomy posts from a wide variety of blogs each week; the other editors cover areas like ecology, biology, chemistry, anthropology, academic life, and so forth.