This week's BIG, bouncing collection of mathy goodness:

**1)**You're likely all sick of hearing about pi by now, but I feel bad that so many of the best pi posts came out too late for my last Fri. potpourri, so will note a few of the plenitude:

a) Steven Strogatz's

**New Yorker**article on pi:

b) from

*:*

**The Aperiodical**c) Alex Bellos interviewing the bloke who memorized 111,000+ digits of pi (...yeah, you read that right):

d)

**a take from Doron Zeilberger, with pi as '**

*an equivalence class of many... algorithms*':

**http://www.math.rutgers.edu/~zeilberg/Opinion142.html**

**e)**

**and if that STILL isn't enough servings of pi for you, Evelyn Lamb rounded up a bunch more pi helpings here:**

**http://tinyurl.com/kh594jc**

**2)**Another

**New Yorker**math piece, by Alec Wilkinson, launching from pi to the mystery of prime numbers:

**3)**"

**Playing With Math: Stories from Math Circles, Homeschoolers, and Passionate Teachers**" edited by Sue VanHattum is ready for order:

**4)**The traveling vacationer problem... so-to-speak:

**http://tinyurl.com/llxehjq**

And relatedly, from

*a problem that at first seems very difficult, but with a lovely, simple answer:*

**Futility Closet,****http://www.futilitycloset.com/2015/03/19/end-state/**

**5)**Bill Gasarch asks,

**"**

*Has anything interesting ever come out of a claimed proof that P=NP or P ≠ NP?*":

http://blog.computationalcomplexity.org/2015/03/has-anything-interesting-every-come-out.html

**6)**Cathy O'Neil announced the launch of "

*" early in the week -- in a time of big (and personal) data, the importance of eternal vigilance has probably never been greater:*

**Data Justice Blog****http://mathbabe.org/2015/03/16/data-justice-launches/**

**7)**Robert Talbert encourages those interested in IBL or flipped classrooms to attend the annual "

*Legacy of R.L. Moore and IBL Conference*" in Austin, TX. this coming June:

**http://tinyurl.com/l25nlnn**

**graphically goes over "Simpson's Paradox" (...no, not Homer or Bart):**

8)

8)

*DataGenetics*

http://datagenetics.com/blog/march22015/index.html

http://datagenetics.com/blog/march22015/index.html

**Not to belabor the whole p-value bashing topic too much, but there is a lengthy discussion going on in the comments section of Deborah Mayo's site (among a few participants), following a guest-post that became the most highly-trafficked posting she's ever had:**

9)

9)

http://errorstatistics.com/2015/03/16/stephen-senn-the-pathetic-p-value-guest-post/

http://errorstatistics.com/2015/03/16/stephen-senn-the-pathetic-p-value-guest-post/

and in related news, we're told that, lo-and-behold, "

*scientists unknowingly tweak experiments*":

http://phys.org/news/2015-03-scientists-unknowingly-tweak.html

http://phys.org/news/2015-03-scientists-unknowingly-tweak.html

**One thing good about the**

10)

10)

*NY State Regents Exams in mathematics*-- it keeps giving Patrick Honner more good material for his blog:

http://mrhonner.com/archives/14706

http://mrhonner.com/archives/14706

**A lengthy discussion of PARCC testing was cross-posted by "mathbabe" and others:**

11)

11)

http://mathbabe.org/2015/03/19/guest-post-a-discussion-on-parcc-testing/

http://mathbabe.org/2015/03/19/guest-post-a-discussion-on-parcc-testing/

**12)**Of course, Mike Lawler worked through more interesting problems this week:

**https://mikesmathpage.wordpress.com/**

**Not really math, but h/t to Sean Carroll for pointing out this interesting piece arguing that there may be TOO MANY science studies currently being published:**

13)

13)

http://www.vox.com/2015/3/17/8231395/too-many-studies

http://www.vox.com/2015/3/17/8231395/too-many-studies

**14)**ICYMI, I interviewed fantastic physics writer Natalie Wolchover last week at

*:*

**MathTango****http://mathtango.blogspot.com/2015/03/natalie-wolchover-from-tiger-zoologist.html**

(...p.s., this upcoming Sunday will have ANOTHER new interview here... and for the first time, back-to-back females... stay tuned)

**.**

**15)**And if you need still more math links for your weekend reading, the 120th "

*Carnival of Mathematics*" is up here:

**http://mathmisery.com/wp/2015/03/16/carnival-of-mathematics-120/**

Potpourri

**BONUS!**(extra NON-mathematical links of interest):1) Lovely profile of one of my (everybody's?) favorites, Jane Goodall:

2) Per usual, another fascinating episode of NPR's

**RadioLab**, this time covering some little-known history of America, Japan, and World War II:

**http://www.radiolab.org/story/fu-go/**

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