A free iPad app from IBM recreates the “Mathematica: A World of Numbers” exhibit from the 1964 World’s Fair, which is still on display at the New York Hall of Science and the Boston Museum of Science.
The BBC on Henry Moore’s mathematical sculptures.
An archive of figures from the history of probability and statistics.
Gwen Fisher’s hyperbolic beading.
John Cook, Willie Sutton and the multivariate normal distribution. (This is from September 2011, but John Cook relinked to it recently in his twitter feed StatFact.)
Jonathan Wai asks why is it okay to suck at math? (via Andrew Sullivan and John Allen Paulos)
Frank Morgan, the best doughnut has a small hole. (For a peculiar meaning of “best” which is totally nonculinary.) But the size of the hole is irrelevant to the existence of God.
Mark Liberman at Language Log writes about Evaluative words for wines, on sentiment analysis of wine reviews.
Carl Bialik, the Wall Street Journal’s “Numbers Guy”, on wind chill, heat index, and other psuedo-temperatures.
Andrew Lipson’s Lego Klein bottle is one of his many mathematical Lego sculptures.
Chris Stucchio on how to leave academia For people going from technical fields to technical jobs. No great new advice here, but lots of useful links.
Jorge Stolfi seeks the Hollywood constant, the smallest non-negative integer that has never been used in the title of a movie? (At least 85.)
Nick Berry has a better strategy for hangman, although he won’t tell you what to do after you actually find a letter that’s in the word. (At Lifehacker; at his own blog he has similar articles for Yahtzee, Battleship, Chutes and Ladders, Risk, Candy Land, and Darts.
God plays dice 
It looks like the Hollywood constant is about to go up: there is currently a Finnish movie being filmed with the title “Vuonna 85” (which just means “In the year 85”). Link from IMDB: http://www.imdb.com/title/tt2088974/