IMA Public Lecture: Mathematics Making Sense of Sensors ~ Robert Ghrist, University of Pennsylvania, January 22, 2009
Free Mathematics Books ~ 254 (legal) e-books
Price Drop: Stocks, Homes, Now Triple-Word Scores ~ This article contains a beautiful infographic containing the frequency of letters in the English language compared to Scrabble tile frequency and point values
AMS Graduate Student Blog ~ New blog by Frank Morgan, Vice-President of the AMS
The moon versus the mosquito ~ “As the late astronomer George Abell of the University of California, Los Angeles, noted, a mosquito sitting on our arm exerts a more powerful gravitational pull on us than the moon does.” Is that true?
Sailing into the wind, or faster than the wind ~ Terrence Tao explains sail boats
Reverse and Add ~ The palindromic order of 498 is 3 (498+894=1392, 1392+2931=4323, and 4323+3234=7557). Does every positive integer have a palindromic order?
What does “classical” mean in science? ~ “understood to be the parts of the subject that were already in place when the authors were students.”—Ward Cheney and Will Light