Built on Facts

Archives for July, 2009

You’re all familiar with Dr. Isis, also of ScienceBlogs? She likes cute things. She likes science. Despite the fact that I’m a so-square-I’m-practically-cubic reactionary, I like both of those things too. But when physicists try to make their physics cute it’s a cringe-worthy disaster waiting to happen. In the mail today was a flier from…

Sunday Function

I first met this function sometime in the year 2001 in the manual for a graphing calculator. The manual said that the function had no “closed-form analytic antiderivative” but nonetheless the calculator could integrate it numerically. At the time I had no idea what any of that meant, but upon taking a high school calculus…

Declaration

Today you should grill some good food, shoot some fireworks, spend time with your family and friends, and take a few minutes to remember awesome magnitude of what our forefathers did on that July in 1776: We hold these truths to be self-evident, that all men are created equal, that they are endowed by their…

Last night I saw a classic conservation of momentum problem in person. It was about midnight, and I was on a service road beside west Houston’s Beltway 8 (avoiding the tolls) when I slowed down to stop at a red light. In my rear view mirror I saw the red and blue flash of emergency…