Friday Grab-bag

A few readings for ya, on this day that may live in infamy:

1)  Lover of prime numbers, Evelyn Lamb, gets trolled by Wilson’s Theorem:

https://blogs.scientificamerican.com/roots-of-unity/it-happened-to-me-i-got-trolled-by-a-theorem/

2)  Erica Klarreich’s followup on graph isomorphism (via Quanta):

https://www.quantamagazine.org/20170114-graph-isomorphism-babai-fix/

3)  Another quickie introduction to category theory:

http://www.math3ma.com/mathema/2017/1/17/what-is-category-theory-anyway

4)  Jim Propp’s monthly posting, fascinating as always, this time on the “Prouhet/Thue/Morse sequence":

https://mathenchant.wordpress.com/2017/01/16/avoiding-chazakah-with-the-prouhet-thue-morse-sequence/

5) If Venn Diagrams bored you in school, you need to consider these from Ben Orlin:

https://mathwithbaddrawings.com/2017/01/18/life-in-venn-diagrams/

6)  Another rock-paper-scissors twist from Presh Talwalkar:

http://tinyurl.com/hc7gjhv

7)  For fans of the Broadway hit “Hamilton,” who also happen to be mathematicians, well, Evelyn Lamb has the post for you:

https://blogs.scientificamerican.com/roots-of-unity/the-mathematical-hamilton-parody-you-never-knew-you-needed/

8)  Markov chains and a chess knight (from PBS's "Infinite Series"):
https://www.youtube.com/watch?v=63HHmjlh794 

Potpourri BONUS! (extra NON-mathematical links of interest):

1)  Natalie Wolchover (for Quanta) on a new theory of life's origins:
https://www.quantamagazine.org/20170119-active-droplets-cell-division/

2)  This is from last year but I just saw it for the first time going around this week; delightful, if you missed it: