...a companion blog to "Math-Frolic," specifically for interviews, book reviews, weekly-linkfests, and longer posts or commentary than usually found at the Math-Frolic site.

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"Mathematics, rightly viewed, possesses not only truth, but supreme beauty – a beauty cold and austere, like that of sculpture, without appeal to any part of our weaker nature, without the gorgeous trappings of painting or music, yet sublimely pure, and capable of a stern perfection such as only the greatest art can show." ---Bertrand Russell (1907) Rob Gluck

"I have come to believe, though very reluctantly, that it [mathematics] consists of tautologies. I fear that, to a mind of sufficient intellectual power, the whole of mathematics would appear trivial, as trivial as the statement that a four-legged animal is an animal." ---Bertrand Russell (1957)

******************************************************************** Rob Gluck

Thursday, September 26, 2013

Gardner Sans Math



There's so much I want to say about Martin Gardner's new autobiography ("Undiluted Hocus-Pocus"); it will take much more application of pen to paper (or pixel to screen) to cover much of the ground, but a few broad-brush remarks today.

First, if you're a Gardner 'groupie' (and by that I mean someone who has enjoyed some of the full breadth of Gardner's prolific writings), of course, OF COURSE!!, read this book. It will be like having Martin over to sit in your living room in a big ol' lounge chair by the fireplace and casually pass along stories of his past to you. BUT (and this is where it gets tricky), if you ONLY know of Gardner through his recreational math writings, or if you're too young to even know those and only know him as a famous name, well, I'm less certain just how much joy this volume will bring. If you like biographies, you may still enjoy it, though it is not the rollicking tale some may want in a good biography. Gardner very largely led a 'life of the mind,' not a life of high, flashy adventure; almost a sedate life in many ways. And there is paltry little of mathematics in these pages (much more on philosophy, religion, literature), though he does relate stories about some of his most popular, well-known columns for Scientific American (his entire time spent with SA though, is but a fraction of the book). So if you're in search of mathematics or rousing life stories, you just might be disappointed. This is a quiet, mostly soft-spoken (even understated) chronicle from a man in his 90's looking back and re-telling scattered memories (no doubt because some people advised him there would be an audience for such a recounting). In his humility, he calls the volume at one point "this slovenly autobiography" and then later his "disheveled memoirs." His fans will love it; it's just harder for me to predict the reaction of those less admiring or knowledgeable of him in advance.

The book reminds me just a tad of Michelle Feynman's compendium of her famous father's correspondences, "Perfectly Reasonable Deviations from the Beaten Track: The Letters of Richard P. Feynman," another volume that contained many mundane, innocuous elements, but also so many bits of pure lovable Richard Feynman -- probably not very meaningful or engaging for a non-Feynman fan, but a treasure-trove to relish for anyone who is one.  Gardner's volume also has a fair amount of run-of-the-mill material, but always peppered with his thoughtfulness, intellect, and humor (no knee-slapping guffaws here, just anecdotes that put a twinkle in your eyes and a curl at the corners of your lips).

This book also reminded me of all the things I disagreed with Gardner on, yet how much I enjoyed reading his viewpoint even when I bristled at it (and there was of course far more to agree with than disagree with; moreover, we both regard ourselves as "Mysterians"). Those are some of the things I might touch on in a broader, more detailed review later. And then too I always found his eclectic taste in literature almost bizarre, but that too just made him all-the-more interesting a character to me. This book pulls back the curtain and reveals a little more of the almost inexplicable, unpredictable wizard that was Martin Gardner. He was not merely a man of numbers, but a brilliant man of letters and thought. And 3+ years after his death this book arrives as truly a gift.
Thank you, thank you, to Princeton University Press for bringing it to us, and at a future point I'll say more about its contents.


ADDENDUM: my much longer, more detailed review of Gardner's book is now posted here:

http://mathtango.blogspot.com/2013/10/undiluted-martin-gardner.html




Sunday, September 22, 2013

Shecky Riemann... NOT Bernhard's Great Grandkid

 Math-Frolic Interview #17 


 'I'm not sure I'd want to belong to any club that would have me as a member.'
-- Groucho Marx

Several of the question-sets I've sent out to potential interviewees of late haven't been returned, so I'm turning my attention to someone I knew I could count on; someone dependable, reliable, patient, and wise beyond his years ;-) …Shecky Riemann of course!!

Yes, I'll be interviewing my alter-ego today for the satisfaction of all those who occasionally send inquiries via email. ...Without foither adieu:

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Well, Shecky you astute, dashing gent you, how ya doin' these days?

Pretty good, let me just get my teeth back in and I'll be right with ya... ;-)

1) So, where did the name "Shecky Riemann" come from anyway?

When I started "Math-Frolic," inspired at the time by the recent death of Martin Gardner, I knew I wanted "Math" in the name of the blog, yet didn't want that word scaring people off (especially the sorts of lay people I sought as readers). So I picked a title ("Math-Frolic") that I thought sounded light-hearted and non-threatening, and then wanted to reinforce it with a humorous-sounding name for myself.
Bernhard Riemann was one of my favorite mathematicians, and I'm of an age where I associate the name "Shecky" with a number of stand-up and Borscht-belt comedians from my youth. For me, "Shecky" is a comic's name, and I immediately thought "Shecky Riemann" had a humorous ring to it, so it was born.
After the blog went up, I was surprised to find that many didn't catch the intended humor, and thought I might really be related to the famous Riemann (I WISH!), so I had to be more clear that it was strictly a pseudonym for entertainment purposes (the name still gives me a chuckle!).

2) What in your background brought you to math-blogging? And what is your 'day job'?

Well, not much… that is to say I only got as far as a year of college calculus before being diverted to other things academically (B.A. psychology Pomona College; M.A. Communications plus some doctoral work).  Nonetheless, since childhood I've been fascinated by both mathematics and mathematicians. As indicated above, that latent fascination was re-kindled when Martin Gardner died, and I recalled all the joy his writings brought me in years prior. I'd also been reading/enjoying Sol Lederman's "Wild About Math" blog for quite awhile which convinced me that a math blog which was "fun and accessible" and directed at non-professionals, could attract an audience. Still, I didn't expect "Math-Frolic" to last even a year (I've done LOTS of short-lived blogs in the past), but lo-and-behold, 3+ years later I continue having a blast with it, and loving the contact it provides me with 'real' mathematicians.
One of the great things too about math-blogging is that so much of the material is timeless... where the posts of say a political blog may already be obsolete in a month's time, math bloggers can write about the Pythagorean Theorem, 2000 years after the fact, and still be saying something that's both true and interesting!
As far as a day job, I've spent most of adulthood as a lab technologist in different areas (primarily clinical genetics), oddly unrelated to my prior academic work, but for some time now have done odd jobs. If the right opportunity arose I'd probably return to a more sciencey/math environment.

3) How did your interest in mathematics originally come about?

I really have no idea, except that when I was very young my mother would read bedtime books to me and, unlike other kids, I gravitated to the books that were most-filled with numbers or even arithmetic. She kidded me in later years that the books I asked her to read would put HER to sleep, instead of putting me to sleep, as intended! :-) Math was easily my best subject from early on through high-school, before it fell by the wayside.

4) What are your favorite aspects of mathematics to study or read about?

When I was younger it was certainly geometry… the beauty and logic of geometry I think initially  attracts a great many people. As I grew older, and especially as I got acquainted with the ideas of Cantor, Gödel, and others, I've become a lot more interested in the foundations of math and in mathematical paradoxes and uncertainty. I think this is sort of a natural progression, from the seeming precision and certainty of something like geometry to the abstraction of what math (and even "knowledge" more generally) is at a deeper cognitive level; it even ties into other interests I have in psycholinguistics and semantics.

5) Is your blog principally "a labor of love" or is it more than that for you?

For the surprising number of hours that it takes up, accompanied by very little compensation gotten out, yes I think of it as a 'labor of love.' It also provides me, in an odd way, with a feeling of returning to childhood, and what interested me so much way back when. I've said before that I think mathematicians, more than most folks, are eternal children-at-heart (who see the whole world, indeed the Universe, as a playground for exploration)!

6) How do you select the topics you post about?

no real rhyme or reason, except of course picking things that I personally find interesting (and not too technical) and wish to pass along. There are large swaths of math that don't interest me, which means a lot of topics, which are perfectly valid blogging fare, don't get covered by my blog.
When I began blogging, my plan was to avoid delving much into math education, since I'm not an educator myself, and there are SO MANY other bloggers doing a good job covering that controversial area… still, that arena is so fascinating and important, I often do find myself doing education-related posts; it's always a hot-topic.

7) You actually run two math blogs now, "Math-Frolic" and "MathTango;" can you explain the differences between them?

Yes, it's a little crazy that someone with my background is actually doing two math blogs! (Go figure!) Math-Frolic started as what people often call a "link-blog" -- a blog primarily linking readers to other posts/pages of interest… with all the right-hand column side-links I include, I also wanted lay readers to use my blog as a useful/informative math "portal."
I average over 5 posts/week at Math-Frolic which is a LOT. MathTango was started specifically so I'd have a repository to put up some much longer posts that could sit there fer a spell and 'percolate;' it only averages about 3 posts per month. I like the combination and flexibility that affords me for now, but can imagine that someday, I may post fewer but longer posts at Math-Frolic, and the two blogs might be re-merged into one.

8) Are there certain blog posts you've done that stand out for you as personal favorites or ones that were the most fun to work on? And from the other side, which posts seem to have been most popular for your readers?

I have to admit my readers and I have DIFFERENT tastes! :-( My own favorite posts at Math-Frolic tend to deal with paradoxes and philosophical conundrums or puzzles, but often the greatest traffic, I s'pose understandably, comes from coverage of specific timely math matters that are in the news, or alternatively, humorous posts frequently draw a lot of hits (even though I often think of them as trivial space-fillers!).
At MathTango I've had special fun writing occasional off-the-cuff commentaries about some matter weighing on my mind, but those don't usually get nearly the traffic (one recent exception though was this one on 'skepticism') as interviews with 'name' mathematicians or certain of the book reviews … I very much enjoy doing the interviews and book reviews too, just not sure that my favorite ones coincide with reader choices.

9) You bring up a lot of popular math books on your sites, but when you're not reading math what do you like to peruse, and what are your other interests/activities/hobbies?

I'm strictly a non-fiction reader, and in last few years pretty much restricted to math and science! (I wish I could enjoy fiction more, but really I blame mandatory high school English lit for turning me off to fiction! -- in my mind, I think I wondered, 'when will I ever use this?' ;-) I don't even like science fiction which so many of my science friends savor). As far as other hobbies, I'm a birdwatcher (and like other animals as well), enjoy some hiking, tennis, flea markets, and generally pretty simple things.

10) Any parting words, not covered above, you'd want to pass along to a math-oriented audience?

just that cyberspace has opened a world of mathematics that really wasn't accessible when I was growing up… it's a WONDERFUL thing to witness and to have at one's fingertips... I hope anyone with even an inkling of interest in math takes advantage of it. I just wish I was now 9-years-old, instead of, uhhh, well, 39+.

Well, thank you Shecky, for doing what you do so well... talking to yourself! 

....and with that, Shecky sauntered off, mumbling something about turning coffee into theorems.

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[....Let that be fair warning folks -- this is what can happen if people DON'T return their interview questionnaires!]



Sunday, September 15, 2013

Colm Mulcahy... Let the Mathemagic Begin


Math-Frolic Interview #16 

"Follow your dreams while doing something worthwhile.  Share your toys. Cherish your family and friends..." -- Colm Mulcahy

For any who don't know of Colm Mulcahy I'll let him introduce himself to readers through the synopsis he sent along as part of this interview:

"Colm Mulcahy is a professor of mathematics at Spelman College, in Atlanta. Over the last decade, he has been at the forefront of publishing new 'mathemagical' principles and effects for cards, particularly in his long-running bi-monthly Card Colm for the Mathematical Association of America (MAA). He also blogs at the Aperiodical and the Huffington Post. Dr. Mulcahy has been a recipient of the MAA’s Allendoerfer Award for excellence in expository writing. His interests are broad, ranging from algebra and number theory to geometry. He earned a B.Sc. and M.Sc. in mathematical science from University College Dublin and a PhD from Cornell University for research in the algebraic theory of quadratic forms."

Here's a summary of places on the Web you can find Colm:

Twitter: @CardColm  https://twitter.com/cardcolm
author of "Mathematical Card Magic: Fifty-Two New Effects"
http://www.cardcolm.org
http://www.spelman.edu/academics/faculty/colm-mulcahy
http://www.maa.org/columns/colm/cardcolm.html ("Card Colm")
http://www.huffingtonpost.com/colm-mulcahy/
http://aperiodical.com/category/columns/maths-colm

One of the delights for me in interviewing Dr. Mulcahy, was that he was friends with Martin Gardner during the last decade of Martin's life, and so I took the liberty of inquiring a lot about Martin (almost like getting two interviews for the price of one! ;-) -- especially timely, since the annual "Celebration of Mind" (in tribute to Gardner) comes up next month. Hope you all enjoy these great responses as much as I did:

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1. You're both a magician and a mathematician… which interest came first, and have the two interests intertwined most of your life? Also, at what point did you know you wished to pursue math professionally?

I came to magic very late in life, in my early 40s.  Hence, combining that with my natural laziness, I’m a terrible magician.  Had I started at 14 like the rest of them, today I’d be good at double lifts, false counts, Charlier passes and the like.  So I have to resort to---gasp!--- mathematics, to entertain with a deck of cards.  What I do (and what’s in my book) is largely original creations. Forget clichés like dealing into three piles, basic addition or subtraction disguised, or casting out nines.  Those are hackeyed and pretty boring in my view!

As it happens, the only sleight-of-hand I can do is a perfect faro shuffle.  That took me a month to learn to get it right, after an intensive one-on-one tutorial from the ever-patient Mark Setteducati a decade back.  The only reason I stuck at that was because the mathematical possibilities fascinated me.

But what really fascinates me are the possibilities with a genuinely shuffled deck, or a slightly rigged deck, even after a riffle shuffle done by a spectator.  That’s what I’ve come to specialize in.  And none of my creations take advantage of perfect faro shuffles; that would put too much pressure on myself. Of course I take a dim view of crimps or other card marking.  I will include a little false shuffling, or tell a few white lies such as “I couldn’t possibly know what these cards are” for entertainment purposes, but the underlying principle of the magic I do has to be mathematical.

As regards my real career---the day job!--- when I started university as a teenager, I didn’t know that it was possible to focus just on mathematics, which was the only subject that made total sense to me then.  I had assumed I’d end up in science, like my brother before me, probably physics in my case.  But after six months I discovered that I could soon drop all yucky labs and do nothing but pure and applied mathematics coursework—what a revelation!   (This was in Ireland, where it was assumed that you already had picked up a decent liberal arts education in secondary school.) I went for it, hook, line and sinker, and never looked back.  I believe I’m still a student at heart, and a life-long learner.  The only real job I’ve ever had was the three years I served as department chair. For the past few decades I’ve actually been getting paid to study---I hope nobody finds out---and also to share the fun with others, they call that teaching, writing, publishing and presenting.

2. You're originally from Ireland… can you say what brought you to the States to begin with and do you get back to Ireland often?

I came over after doing my masters, back then it was impossible to get funded to do a PhD in Ireland.  I've been lucky to be able to get back often over the decades, at least twice a year these days.  Maths Week Ireland (www.mathsweek.ie) sometimes have me over, it's the largest mathematics outreach programme in the world (http://www.huffingtonpost.com/colm-mulcahy/math-weak-try-math-week_b_2008517.html), with over 130,000 kids getting involved last year. I spoke to 1000 of them myself, up and down the length of the country, in the course of my gruelling but fun 9 day "fall break".  The Maths in the Street activities are a hoot, because you get to engage curious people aged 8 to 80, who just go out to do their shopping and they get home with groceries AND a knowledge of the Towers of Hanoi, how to solve a maze, or a card trick they can do for the family.
[--We need more of that in the U.S.!]

3. You were a friend of Martin Gardner through the last decade of his life… are there any behind-the-scenes stories about Martin you can share that might interest my readers?

Martin was amazing. Humble, incredibly focussed and hardworking and productive.  So kind, and generous with his time and wisdom. We chatted on the phone and corresponded on and off from 2000 to 2006, when I finally visited him for the first time. By then he was in his 90s, and probably not as sharp as he’d been a decade or two earlier.  He was certainly a little forgetful: sometimes he didn’t remember that he’d already mastered something and written about it, but he could look it up quickly in his amazingly organized files, and it would come back to him right away.  And his less robust state didn’t stop him writing a half dozen books in his last five years, including the ace up his sleeve, his autobiography.

Back in 2000, I’d sent him about 50 Latexed pages of notes I’d made on mathematical card tricks---Latex is what most mathematicians use to typeset their work---largely stolen from assorted publications of his.  He responded with enthusiasm, and suggested I write a book on the topic.  I was flattered of course, but knew I’d have to come up with a lot more original material for that to be a reasonable proposition.  I set myself a personal goal of getting it published by 2006, the 50th anniversary of his landmark "Mathematics, Magic and Mystery," and found a willing (university) publisher.  I’m deadline driven: without one, a lot of things don’t get done.  With a deadline, they eventually get finished, although seven years late in this case, and with another publisher.  Along the way I decided to try to switch to the premier outlet for recreational mathematics, AK Peters (now part of CRC Press).  I was very happy that Klaus Peters offered me a contract and that I finally delivered the goods this year, before books become obsolete.

4. Gardner was surprisingly unpredictable in some of his viewpoints and interests… in your time with him was there any particular view he held or interest he had that most surprised you, or that the two of you debated over?

He tried to engage me in a debate once about whether I thought mathematics was discovered or invented, which is of course an old conundrum, and one he had definite views on.  Being the shallow person I am, I refused to be drawn in.  It never really interested me, though of course it should have. In more recent years, I have asked myself the same question in relation to mathemagical principles which I have stumbled on.  Did I create them out of nothing, or did I just get lucky and find them because I was kicking around in the leaves where nobody else before me had?  I still don’t know.  I probably should have paid more attention to Martin on this topic.

Following his death, many tributes assumed, as I myself had in earlier years, that he was either agnostic or atheist.  Not so.  I wouldn’t presume to speak on his behalf---we never discussed it and his views here are well documented in his own writings---but I believe he was a theist who did not believe in any organized religion.  That surprised me when I first realized it.
[-- Gardner covered this, and 'outed' himself as a "fideist," in one of my favorite volumes of his, "The Whys of a Philosophical Scrivener" -- a bit of an oddity among his works, and in some ways a dry read -- yet, made fascinating, by the chance to see how his mind worked on a very philosophical (less-empirical) level -- also, Gardner's high regard for Spanish philosopher/writer Miguel de Unamuno is made clear in this volume.]

One sweltering March day when I was visiting him, I spotted a curious object hanging up over the sliding door to the outside, and I asked him what it was.  It was a small musical saw. He confessed to playing it on rare occasion for relaxation.  Despite my gentle encouragement he made it clear that there would be no public or private performance, and I felt a little embarrassed, as if I had intruded on his privacy.

I never wanted to bother him unless I had something to share which I thought he’d really appreciate knowing about, but I did have a habit of phoning him now and then while waiting to board flights. The very last time I did this—about six months before his death---I ended the call as I often did by asking if he’d had any interesting visitors, and he replied in the negative, as usual.  After some prodding he perked up, and said he’d had one surprising visitor, which baffled him: Richard Dawkins.  He added something like, “I don’t know why somebody famous like that came to see me.”  I retorted, “Because YOU’re famous!” but he wasn’t having any of that.  I went on, pointing out that Dawkins had written much about theology and philosophy, just like he had.  He revealed that all they’d done was chat about life, and grandkids and baseball---Dawkins had just given a talk at the university nearby---until  his visitor stood up to leave because he had a plane to catch.  Then they both realized that there was a big topic they were supposed to discuss, and they sat down again and chatted intensely for 15 or 20 more minutes.  At this point I had a plane to catch myself---I was about to fly from Boston to Dublin---and I never got to hear the rest of the story.  Or, sadly, Martin’s voice again.  I'd grown very fond of him.  Such a sweet unassuming man, for such an intellectual giant.

[-- Wow, fascinating Dawkins story… easy to speculate that they could've had an 'intense' chat over the nature of religion or religious belief, but purely a guess; no doubt many possibilities. If any readers, perchance, know Dawkins well enough to ask him about it, I'd LOVE to hear what the "the rest of the story" is!
One of Gardner's most remarkable qualities (in my view) was his balancing act between being a strong skeptic and harsh critic on-the-one-hand, while also being humble/"sweet unassuming" on the other... opinionated, but not in a know-it-all kind of way; curious and uncertain of many things to the end.]

5. What are your own favorite aspects of mathematics to study or read about, and if you could only take say 3 or 4 math books with you to a desert island what might they be?

 I like surprises and counter-intuitive things which every graduate in all disciplines should know, such as not-so-obvious averages (http://www.huffingtonpost.com/colm-mulcahy/mean-questions-with-harmonious-answers_b_2469351.html) and non-Euclidean geometry. Most of us are smart enough to know that the earth isn’t flat, but is space flat?? I especially like things that teach us to distrust simple “numerical evidence”:  The false positive paradox. Simpson’s paradox. The Birthday Paradox.  Benford’s Law.  The Gilbreath Principle. There are probably five more of them out there that we all need to know about.  If anyone knows what they are, please tell me.

I really should have a good grasp of the basic history of mathematics. "Math Through the Ages" by Berlinghoff and Gouvêa is probably a great place to start.  I’m particularly interested in knowing about the contributions of all cultures around the globe, even if much of that was hidden until recently, or doesn’t “fit the mold.”

I’m woefully ignorant of topology, but if Pontryagin and Morin (both blind) could contribute so much to the subject, it wouldn’t kill me to learn a little.  I never really got quantum mechanics as a student all those years ago, it was the one topic I faked understanding, perhaps taking false comfort from the fact that Einstein didn’t buy it either.  I’m not that attracted to it, but if it was an undergraduate topic in the 70s, I should be able to handle it.

It’s time I understood the whole mathematics/music connection.  It might help if I actually knew something about music, but I’m strictly an avid consumer. 
[-- yes, I was surprised back in college days by how many music majors I ran into with math minors, or math majors with music minors! -- definitely an interesting connection]

Of course we should all study Diaconis and Graham’s "Magical Mathematics" daily.  If I could master half of the tricks in it, I’d die happy.

6. Do you have one mathematical-related achievement from your life that you're most proud of above others?

I suppose getting my first book out, twenty-five years after I first considered writing one, and after starting and abandoning two others!  The one just published bears no resemblance to anything I would have considered writing even fifteen years ago, and the people who trained me probably wouldn't recognize it as having much to do with mathematics, but it contains a lot of fresh creations. I hope it turns some youngsters on to the joys and possibilities of mathematics.

Starting in 2012, I've been blogging for the "general public", and not just for card magic aficionados as I do in Card Colm at maa.org.  I've written some things for the Huffington Post http://www.huffingtonpost.com/colm-mulcahy/ and also for The Aperiodical in the UK. http://aperiodical.com/category/columns/maths-colm  In recent times, both have taken a back seat due to the focus I needed to bring to getting my 380-page book manuscript to the printers, set up appearances and book signings and so on, but I plan to get back to that kind of blogging soon.

There's a big world out there that needs to have a better attitude about mathematics.  We've never had the best PR, and I aim to play a role in improving the image of the subject.  I've always had a big issue with the claim that people are either numbers or words people.  Many of us are both.  Some mathematics teachers are reluctant to correct basic spelling and grammar in their students' work, for instance, either on the basis that it's not their job, or it doesn't matter. Wrong!  It's all about communication, about being able to justify your position with a cogent argument using words AND numbers correctly. A string of numbers presented without accompanying text is hardly convincing, and may in fact mask the presenter's confusion or ignorance.  We all need to have a healthy skepticism of numbers and "experts" and learn to make informed decisions ourselves.  And be willing to change our minds in the light of compelling fresh evidence. Ironically, education is no inoculation against frauds and charlatans, whether they're peddling hokey stats or snake oil.  James Randi can confirm!

7. When you're not reading math or magic, what other types of reading do you like? And what other hobbies or activities do you enjoy?

Irish fiction. World history. Cookery books. Music, music, music.  I cook a lot and indulge in craft beers and chocolate more than is good for me.  I jog and am trying to bike more often, to atone for my sins.  Actually, I’ve always found that such outdoors exercise stimulates the mind.  Over the past ten years or so, some of my best ideas for new Card Colms have come to me while puffing and panting.  I am not alone in that regard (see http://www.huffingtonpost.com/colm-mulcahy/sports-and-mathematics_b_2475226.html ).

8. And back to Martin… You've been heavily involved with the "Gathering For Gardner" and "Celebration of Mind" (coming up soon in October) events which honor Martin Gardner's legacy.  Most Gardner fans are probably familiar with these events, but can you give a quick synopsis of them for anyone unfamiliar? And do you have a particularly memorable experience from one of these events that stands out for you over the years?

G4G is an insider and by-invitation-only conference held in Atlanta in March of even-numbered years.  They’ve being going on for 20 years.  They  attract very creative and interdisciplinary mathematicians, puzzlers and magicians as well as skeptics, illusionists, Alice afficionados, and so on.  Four or five days of extreme intellectual stimulation and networking.  You might meet some of your heroes, from Randi to Shortz, Conway to Penrose, Teller to Smullyan.   A few years back there, Erik Demaine announced that any two polygonal regions of the same area are hinge-dissection equivalent, meaning that the first can be cut into pieces and these swung around on hinges to form the second.  He got a standing ovation.  I was present when history was announced.  It was awesome.   I was able to tell my students at Spelman soon thereafter when I proved for them the much easier version ignoring hinges.  Who’d have thought it, a new math result proved in their college days that they could at least understand the statement of?

The 'Celebration of Mind' events were started in 2010, a few months after Martin died.  These are open to all, anywhere on the planet.  Anyone can host one or attend one---a few are strictly private but that’s not common.  They’ve happened on all continents and at both poles. They take place in and around October 21, which was Martin’s birthday.  We’d like this to go viral as well as global, especially with Martin’s centennial approaching in 2014.  There should be thousands of them each year, celebrating the triumphs of the human mind with cool stuff Martin made us think about:  recreational mathematics, brain teasers, logical loopholes, rationality, skepticism, optical illusions, puzzles mechanical and cerebral, the mathematics of M.C. Escher and Mandelbrot, origami, the list goes on.  The  www.celebrationofmind.org webpage has terrific resources, check out Vi Hart’s series of four hexaflexagon videos from last year to get some ideas of the fun and depth which lies just below the surface of innocent-sounding explorations.  Please also follow @WWMGT on Twitter!

There’s another celebration I’d like your readers to know about: the theme of the next Mathematics Awareness Month in the USA is “Mathematics, Magic and Mystery,” named after Martin’s groundbreaking book from 1956.  So in April 2014, American school children and students of all ages will be exposed to some cool stuff reflecting the amazing mathematical legacy Martin left behind.

9. Any parting words, not covered above, you'd want to pass along to a math-oriented audience?

Life can be short---just ask Steve Sigur or Kirsty MacColl---and it’s certainly finite.  Follow your dreams while doing something worthwhile.  Share your toys. Cherish your family and friends.  And as Nick Lowe said four decades ago, what’s so funny about peace, love and understanding?
Oh, you said a math-oriented audience… same advice, plus or minus epsilon.
[-- A splendid note to leave on!]

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Are those some wonderful responses or WHAT!!... THANKS so much for participating here Colm, and just like Martin Gardner may you keep contributing to us for many many years to come! ...or, as they say, 'Luck o' the Irish to you!'

Please do check out Colm's Webpages and book.



(p.s.: I haven't had a chance to check all the hyperlinks above, so do let me know if you find broken/misused ones.)


ADDENDUM:  want to attach a voice to a name and learn still more about Dr. Mulcahy (with some nice detail on his card magic and book, and still more on Gardner)... Sol Lederman now has up a great podcast interview with Colm on his "Inspired By Math" series:

http://wildaboutmath.com/2013/09/21/colm-mulcahy-inspired-by-math-32/





Wednesday, September 11, 2013

Mathematics… Not Immune


Somewhat oddball topic today… just felt like airing it (bit of a rant on skepticism....):

I'm  sometimes amused by 'scientists' on the Web calling themselves "skeptics" only to find that they're aiming most of their fire at what I can only call "low hanging fruit": creationists who think the Earth is less than 10,000 years old, psychics who bend spoons, UFO abductees who've taken trips to the planet Kazaar (or some such), etc. etc. They often proudly call themselves "evidence-based" scientists… but don't seem to acknowledge that scientific "evidence" itself can be highly subjective, manipulated, and tainted fare... requiring skepticism itself.
What I've always wanted to see is more "skeptics" turning their keen eyes on the likes of the Journal of the American Medical Association, New England Journal of Medicine, CELL, Nature, Science, etc. Most "science" is so poorly done it doesn't even see the light of publication, but even research that does make its way into such 'premier' publications (let alone lesser ones) often escapes the scrutiny it deserves, receiving a sort of 'free ride' once published (the data, methods, underlying premises/assumptions, and of course conclusions, never being adequately challenged, nor replicated; and don't assume 3 peer reviewers have done their job either!). Most who have been heavily involved in research, IF they're honest about it, will admit that journal articles, as composed, often don't accurately reflect the actual work, as carried out. But with the digital age upon us, the needed sort of ongoing, ever-watchful skepticism is finally emerging.

Dr. Ivan Oransky has made a job of keeping track of journal "retractions" (often, but not always, for malfeasance) from research journals, with his wonderful, must-read "Retraction Watch" blog (sub headed: "Tracking retractions as a window into the scientific process"). And a recent 'Peer Review Congress' meeting in Chicago, well-tweeted (hashtag #pcr7) by Oransky and others, shined light on many of the important research issues that don't get voiced enough… and these are NOT new, but have been around for a long, long, long time, just finally getting the attention deserved. Anyone who has followed this area will be familiar with the name "John Ioannidis" as one of the most-vocal of those who've questioned the reliability/validity of much research. There are also now a number of twitterers (some better than others) focusing on biomedical/research skepticism, though 140 characters isn't always much to work with!
My sense is that a majority of the retractions that Oransky reports on involve the biomedical sciences, but even mathematics papers or journals occasionally appear among his subjects (sometimes almost laughably). So math, the 'queen of the sciences,' is not immune from sloppiness (or even fraud). Check these out:

  http://retractionwatch.wordpress.com/?s=mathematics

WHY the heck do I mention all of this now? Well, nothing earth-shattering, but in preparing the John Casti quote for the post that I did last Sunday on Math-Frolic (thought it would make a nice Sunday meditation), I came across information that disturbed me. Casti (who focuses on "complexity" theory) has long been one of my favorite science writers/thinkers; he is both a good explainer, and a thought-provoking one; I've read him for decades. So I was surprised/disappointed to learn from the internet that he'd been caught extensively plagiarizing material in the past -- multiple times... that doesn't make his material any less interesting or important to me (he plagiarizes from good people ;-), but it does throw a troubling ethical shroud over that material. Here are 3 web links that address Casti's sins:

http://www.nytimes.com/2002/03/09/books/connections-plagiarism-that-doesn-t-add-up.html
http://www.ams.org/notices/200206/commentary.pdf
http://onlinelibrary.wiley.com/doi/10.1002/cplx.20050/pdf

Last year, budding science-writer phenom Jonah Lehrer was disgraced and humiliated when he was found to have plagiarized, and even fabricated, passages in some of his best-selling books. His actions (and Casti's) are an affront to the many high-quality science communicators who choose to write books the old-fashioned way… by actually generating their own words ;-)  Casti's lapses may not be as grievous as Lehrer's, but it will now be difficult for me to read him with quite the same respect I did previously -- his repeated actions being such an unexpected/disheartening bit of chicanery to learn about.
Moreover, it harkened back to my prior MathTango post, wherein I wrote about learning that some observers suspect that Daniel Tammet (renowned autistic savant, and another person whose books I've enjoyed) may not be a genuine savant, but only a memory expert who uses his mental skills/tricks to portray himself as he does -- again, disappointing to learn that this is even a possibility. Sigh....  I consider myself a fairly critical reader, yet was caught unaware by these controversies around Casti and Tammet. (While I'm on this whole subject it may even be pertinent to note that the post prior to the Tammet post was a review of the new book, "Magnificent Mistakes In Mathematics," coincidentally, yet another focus on flaws-of-a-sort in science/math.)

On the Web, there are plenty of individuals, with or without some math credentials, who stake out math ideas that aren't credible (Mark Chu-Carroll of "Good Math, Bad Math" occasionally writes entertainingly about them, and their math "crackpottery"): http://scientopia.org/blogs/goodmath/?s=crankery ). But to discover shenanigans going on at a more professional level and/or in journals, is more disconcerting and unsettling… though I s'pose no field is immune from flim-flam artists of all sorts, math/science included.

Luckily, pure math really is probably more resistant to outright fraud, or even unchecked sloppiness, than most fields. In fact when I typed "math" plus "fraud" into Google most of the examples arising were, not too surprisingly, in regard to economics or finance. The other area that popped up, again not too surprising upon reflection, was statistics, which often gets used (though not necessarily deliberately) incorrectly to argue some point.

Anyway, I write all of this as a way of saying that real skepticism needs (unfortunately) to cut across all boundaries -- I'd dare say epidemiology can be critiqued almost as easily as astrology! Don't aim doubt and critical faculties at just the naive, the non-empirical, the 'low-hanging fruit'… but at the 'evidence-based,' the peer-reviewed, and occasionally even the mathematical as well. I applaud Oransky and others for bringing a critical eye to "the process of science" and trying to keep scientists not just skeptical, but honest as well. Science succeeds best through its vigilant, self-scrutinizing, self-correcting functions, which, for a variety of reasons, too often get left on the sidelines... occasionally even in mathematics.

In sum, Margaret Mead was famous for saying: "Never doubt that a small group of thoughtful, committed citizens can change the world; indeed, it's the only thing that ever has."
I'm tempted to parody that by saying, 'Never doubt that self-skepticism, close scrutiny, and doubt aren't key driving forces behind scientific progress… indeed, they always have been.'