Relaxing on Sunday with Frank, Mike, Fawn et.al.

My last two posts (Feb. 4 & 9) at MathTango touch on the frequent topic of "beauty" in mathematics (including Frank Wilczek's take); if you missed them, easy reading for a lay-back Sunday morning:

http://mathtango.blogspot.com

…and if you missed this engaging Mike Lawler rendition of a Fawn Nguyen problem for her middle-schoolers, also worth a Sunday gander: