The Endeavour blog post

Damn it just when i begin to consider unsubscribing from John D Cook’s Endeavour blog post he comes up with something Tantalizing like this.. http://www.johndcook.com/blog/2011/11/09/lucky-trig-identity/

And this one made me genuinely happy while i have been in a couple of weeks of numbness..http://www.johndcook.com/blog/2011/01/25/coming-full-circle/