Archive for Pie

Nine More Kinds of Pi: Happy Pi Day 2015!

Since this blog takes its name from an artist who wrote about pie and painted π (see last year’s post), I try to offer a little tribute to this beloved irrational number each Pi Day. Today, at 9:26:53 am and pm (twice!), the date will spell out the first ten digits of the number. Well, it will if you write the date in the American style: 3/14/15, 9:26:53.

Last year, I managed to offer nine kinds of π / pie. And this year,… here’s another nine!

1. Andrew Huang’s “Pi Mnemonic Song” (2013)

I’ve featured π music on this blog before (see here and here), but only just discovered this piece, thanks to Paul DeGeorge, who shared it on Facebook. Yes, there’s a minor glitch late in the video. As Huang acknowledges on the song’s YouTube page, “there was an editing error at 1:18 with a couple of the numbers, but the song does all truly line up with Pi.”

2. “Joy of Bubbles,” π art from Cristian Vasile (2014)

Cristian Vasile, "Joy of Bubbles"

Vasile describes the piece as the “First few thousands digits of pi displayed over radial paths. Small size dots.” In an article from last year’s Pi Day, the Guardian shares art from Vasile and others.

3. π in superballs (2015)

Pi in superballs (Photo by Philip Nel)

Yes, these are my superballs, on my bathroom floor. Why do you ask? Also, technically, they’re not superballs (a brand name) — they’re just bouncy rubber balls. But they do spell π out to the 11th digit.

4. Sandra Boynton’s Pig & Pi (2015)

Sandra Boynton, Pi

Every day, Boynton posts something funny via Facebook and Twitter — here’s what she has for today. (I hope the pig finds some pie soon….)

5. Stephen Doyle’s global Pi (2015)

Stephen Doyle's global Pi

Doyle’s photographic portrait cleverly places the number within a circle, half of a globe — presumably to signal global Pi Day. This piece of art accompanied Manil Suri’s “Don’t Expect Math to Make Sense” in the New York Times, 14 Mar. 2015.

6. Technische Universität Berlin’s Pi mosaic

Technische Universität Berlin's Pi mosaic

Located outside the Maths Department at the Technical University of Berlin.

7. Tim Habersack’s π in color (click for larger image)

Tim Habersack's Pi in color

Click on the above to see the larger image (it takes Pi out to 786,432 digits). As Habersack explains, he “Wrote a php script which reads in the characters of pi one at a time. I assigned a single color to each character, 0 = white, 1 = teal, 2 = blue, etc. I create an image, and starting at position 0,0, I draw in my pi calculation one pixel at a time.”

8. Michael Albert’s Pi collage

Michael Albert's Pi collage

From PBS’s “6 Ways to Celebrate Pi Day.”

9. The Barbury Castle Crop Circle (allegedly)

Barbury Castle crop circle

Located in Wiltshire, England, this crop circle is alleged to be a graphic representation of the first ten digits of Pi. Full explanation here, though I’m a bit skeptical of it, myself.  Whether or not it spells out Pi, it is an impressive crop circle.

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Nine Kinds of Pie

Happy Pi Day!  In recognition of 3.14 (today) and this blog’s Pi pie avatar (logo?), here are Nine Kinds of Pie (loosely defined).

Pi1. The ratio of a circle’s circumference to its diameter: 3.1415926535.  When I was a kid, I memorized the number out to its tenth decimal point. On a long strip of paper, I also wrote the number out to about 100 decimal points. Perhaps I thought that learning this irrational number would grant me some greater insight. Or, possibly, I was intrigued by the fact that this simple ratio would be represented by such an unwieldy and unending number. I’m not sure. But I still have a fondness for Pi (and pie!). For the truly obsessed, here is Pi out to 100,000 decimal points. Here’s Pi Day’s “Learn About Pi” page, the Joy of Pi’s “Pi Facts,” and Wikipedia’s essay.

Pi: one hundred digits

2. Pi was also important to Crockett Johnson. In his later years, he worked on the mathematical conundrum of squaring the circle — a problem that also intrigued mathematician and children’s author Lewis Carroll, a century earlier. Johnson even published his own original theorem on the subject.

Crockett Johnson, from the Mathematical Gazette (1970)
Crockett Johnson, algebraic proof from the Mathematical Gazette (1970)

He moved towards this answer, visually. He literally worked out the problem via his paintings, creating many variations on the idea, and ultimately arriving at Squared Circle (1968).

Crockett Johnson, Squared Circle (1968)

Then, to get the algebraic notation correct, he corresponded with mathematicians, who helped him express his idea in the less visual medium of the formula. It was published in the Mathematical Gazette in 1970.

3. As readers of children’s literature know, this blog takes its name from a scene in Johnson’s Harold and the Purple Crayon (1955), in which the title character “laid out a nice simple picnic lunch.”

Crockett Johnson, Harold and the Purple Crayon (1955): "There was nothing but pie."

I love the way Johnson’s tone both embraces Harold’s matter-of-fact tone and registers amusement at this claim. On the one hand, the third person narrator (via a literary technique known as free indirect discourse) tells us what Harold is thinking: our narrator is so closely aligned with Harold’s point of view that one could easily swap the pronouns and Harold’s name for “I.” These are Harold’s thoughts. On the other hand, they’re not entirely Harold’s thoughts. Johnson’s deadpan delivery of these lines also underscores the mild absurdity of having nine favorite kinds of pie. That is, there’s also an awareness here that Harold lacks — specifically, that “nine kinds of pie that Harold liked best” is  funny.

4. Or is it? This somewhat baffling pie chart lists Americans’ 10 favorite types of pie.

Pie chart of Americans' favorite types of pie

It’s somewhat baffling because the percentages don’t add up to 100 — which is the point of using a pie chart. The circle represents 100%, and then each slice some lesser percentage. But this chart doesn’t. As the chart’s caption explains, the total “adds up to more than 100 per cent because people were asked to rank their three favorite types of pie.” And that still doesn’t make the above chart any more illuminating — though it is pretty to look at.

5. Pies are among those foods that come in both sweet and savory varieties. When I think of pie, my thoughts drift to the sweet (apple, peach, pecan, blueberry), but there are are also savory pies (meat pie, chicken pot pie, potato pie, pizza pie). The Oxford English Dictionary, which finds the oldest use of the word “pie” (then spelled “pye”) in 1304, offers the following as its  first definition:

A baked dish of fruit, meat, fish, or vegetables, covered with pastry (or a similar substance) and freq. also having a base and sides of pastry. Also (chiefly N. Amer.): a baked open pastry case filled with fruit; a tart or flan.

6. Care for some Amblongus pie? Since this is (often) a children’s literature blog, here’s a recipe from Edward Lear’s “Nonsense Cookery” (which appears in his Nonsense Songs, Stories, Botany, and Alphabets, 1871).


Take 4 pounds (say 4 1/2 pounds) of fresh Amblongusses, and put them in a small pipkin.

Cover them with water and boil them for 8 hours incessantly, after which add 2 pints of new milk, and proceed to boil for 4 hours more.

When you have ascertained that the Amblongusses are quite soft, take them out and place them in a wide pan, taking care to shake them well previously.

Grate some nutmeg over the surface, and cover them carefully with powdered gingerbread, curry-powder, and a sufficient quantity of Cayenne pepper.

Remove the pan into the next room, and place it on the floor. Bring it back again, and let it simmer for three-quarters of an hour. Shake the pan violently till all the Amblongusses have become a pale purple colour.

Then, having prepared a paste, insert the whole carefully, adding at the same time a small pigeon, 2 slices of beef, 4 cauliflowers, and any number of oysters.

Watch patiently till the crust begins to rise, and add a pinch of salt from time to time.

Serve up in a clean dish, and throw the whole out of the window as fast as possible.

For any readers unfamiliar with Lear’s nonsense works,… you’re in for a treat even tastier than amblongus pie and gosky patties. Go read ’em!

7. John Cage and Lois Long’s Mud Book (written 1950s, published 1983) offers a recipe for mud pie — and yes, this is John Cage, the composer.

John Cage and Lois Long, Mud Book (1983)


John Cage and Lois Long, Mud Book (1983)


John Cage and Lois Long, Mud Book (1983)


John Cage and Lois Long, Mud Book (1983)

As Lane Smith and Bob Shea write in their post on Mud Book (and my source for these images), “Instructions any child can follow with ingredients easy to obtain. Notably, dirt, rocks, water, dirt and more dirt. But remember, mud pies are to make and to look at. Not to eat.”

8. Michael John Blake’s “What pi sounds like” is my favorite musical interpretation of the number. (It’s also literally a “musical number.” Get it?)

Many others have composed music inspired by Pi. Lars Erikson — composer of the Pi Symphony — even sued Michael John Blake (composer of the above piece), alleging plagiarism. Erikson lost.

If you like it (and if you don’t), you can  buy Michael John Blake’s “What pi sounds like” via iTunes.

9. One could make a long list of pie-themed music, too. The earliest one that comes to mind is “Song of Sixpence” (18th century): “Sing a song of sixpence, / pocket full of rye. / Four and twenty blackbirds / baked in a pie.” There’s A. A. Milne’s “Cottleston Pie,” performed here by Rowlf the Dog on the first season of The Muppet Show (1976).

According to an informal and completely unscientific survey of the “pie” songs in my iTunes, pies usually function metaphorically in music. Yes, there are “The Worst Pies in London” (from Sondheim’s Sweeney Todd) and Zoe Lewis’s “Pies for the Public” (from Sheep), but you’re more likely to encounter Don McLean’s “American Pie” (1971), Jay & the Techniques’ “Apple, Peaches, Pumpkin Pie” (1967), the Beatles’ “Honey Pie” (from The Beatles [White Album], 1968), David Wilcox’s “Wildberry Pie” (1991), Death Lurks’ “Happiness Pie” (from The Kids in the Hall soundtrack, 1996), or Louis Jordan and Ella Fitzgerald’s “Patootie Pie” (1946).

And what better way to express one’s appreciation for Pi and pie than by baking a Pi pie?

Pi pie

If you want to make one, the Nerdista has a recipe for her Pi pie (pictured below).

Nerdista's Pi Pineapple Pie

Happy Pi Day! Let’s have some pie. And Pi, of course.

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