-What would the world look like as you approached the speed of light? Apparently, it would look like this.
-Gary Brecher continues to provide interesting descriptions of military history that you won't find anywhere else on the web. Here is a piece on Ben Grierson, a Civil War hero (no mean praise from Brecher). Here is his take on the wars between the Mayans and the Spanish in Mexico.
-Futility Closet describes a weird maths problem that I still don't quite understand the answer to. More details here.
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