In honor of Columbus Day: When discoveries stay discovered
Business and economics
The expected value of a career in baseball is $86
Animated graph of the growth of Walmart
Stimulus spending doesn’t work
Science
Circular periodic table of elements
Richard Hamming on you and your research, a classic
Software development
Software cargo cults
The bipolar Lisp programmer (interesting essay even if you don’t care about Lisp)
Google asks Jon Skeet to turn down his Microsoft MVP award
Math
Math Overflow, a new Stack Overflow-like Q&A site for math. There is an analogous effort for statistics, Mean Squared Error, that has not been released yet.
There are two math-related blog carnivals: Carnival of Mathematics for math per se and Math Teachers at Play for elementary math and math education. Here are their latest posts. The Carnival of Mathematics schedule has been erratic lately. Mike Croucher recently took over leadership of the carnival. He has taken several steps to improve communication and regularize the carnival schedule.

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