Sometimes I have to write stuff so I won't forget how to do it. This is one of those times. In my recent post on the angular size of a soccer goal, I created a contour plot. Despite what you might ...

[Randall Munroe] certainly understands the power of graphical representation of data. The humorous plots in his xkcd webcomic are one of the favorite parts for many readers. Their distinctive, ...

Here are three smart tricks, based on an understanding of frictional forces, to beat a slippery slope. Two Titanic Structures Hidden Deep Within the Earth Have Altered the Magnetic Field for Millions ...