CLOSE
istock
istock

How to Memorize Pi if You’re a Word Person

istock
istock

Pi Day is always on March 14 (3/14), but this year it’s extra special because we get two more digits because of the year (3/14/15). The day offers something for the math-lover, of course, but also for the baked-goods lover (Bake a pi pie!), the music lover (Sing some Pi Day carols!), and the parade lover (March in a pi-rade!) What about the word lover?

Pi enthusiasts have performed amazing feats of memorization, reciting the number to thousands of digits. World record holder Chao Lu has recited it to 67,890 digits without an error. But memorizing pi doesn’t have to be done through numbers—it can also be done through words. This sentence "How I wish I could calculate pi" gives you pi to seven places. Just count the number of letters in each word—3, 1, 4, 1, 5…—and you get 3.141592.

Here are some other pi sentences from the Pi Wordplay page at Wolfram Mathworld.

May I have a large container of coffee? (3.1415926)

How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics. (3.14159265358979)

You can take that one a step further:

How I want a drink, alcoholic of course, after the heavy lectures involving quantum mechanics, and if the lectures were boring or tiring, then any odd thinking was on quartic equations again. (3.1415926535897932384626433832795)

But why stop there? Sasha Volokh of the Volokh Conspiracy composed a passage that takes pi out to 167 digits. Mike Keith’s Cadaeic Cadenza takes it out to nearly 4000 digits (the last line is “I end, whispering ad infinitums").

The technique can work in other languages too. If you prefer French, there’s this:

Moi, j'aime a faire connaitre un nombre utile aux sages. (3.1415926535)
“Me, I like to teach a number useful to wise ones.”

Pi writing, also known as Pilish, is a neat trick, but it can be hard to come up with 7, 8, and 9 letter words that fit just right into a valid sentence. There are other techniques that allow more freedom of expression on the language side. Akira Haraguchi has recited pi to 100,000 digits (his feat has not yet been recognized by Guinness), and he did it by taking advantage of the structure of Japanese words, which can be broken down into strings of a limited set of syllables. The first 15 digits of pi can be captured in a four-word, fifteen-syllable sentence:

Saishi ikokuni mukosan kowakunaku.
“The wife and children have gone abroad; the husband is not scared.”

Haraguchi’s system is particularly useful and flexible because he doesn’t assign a single syllable to each numeral. Japanese has a limited but large set of syllables, about 100. He takes advantage of all of them by assigning each of the numerals 0-9 to a whole group of syllables. For example, 1 can be a, i, u, e, hi, bi, pi, an, ah, hy, hyan, bya, or byan. This way, a far larger number of words can be converted into strings of numerals. According to a 2006 article about him in The Japan Times, Haraguchi was able to memorize so much by creating “a myriad of stories and poems, including a story about the legendary 12th-century hero Minamoto no Yoshitsune and his sidekick Benkei, who was a Buddhist monk.” Not that that makes it easy. He still had to internalize his system through years of practice, and he had to remember the stories. Still, it shows there are all kinds of ways to explore the infinite mysteries of pi, and that word lovers need not be left out of the fun.

nextArticle.image_alt|e
iStock
arrow
travel
A New Roller Coaster is Whizzing Through Colorado's Rocky Mountains
iStock
iStock

There are plenty of ways to explore the majestic Rocky Mountains, but few offer the adrenaline rush of the Rocky Mountain Coaster, a brand-new roller coaster that sends riders soaring along the range’s natural twists and turns.

As Urban Daddy reports, the Rocky Mountain Coaster recently opened at Copper Mountain, a mountain and ski resort that’s located near the tiny town of Frisco, about 75 miles west of Denver. Nestled in the heart of the Rocky Mountains, the vacation spot is ideal for hikers, skiers, and mountain bikers. Now, visitors looking to enjoy the surrounding scenery without breaking a sweat can cruise for roughly a mile down to the resort’s high alpine Center Village.

The ride’s raised track “runs along the natural curvature of the mountain, with zigs, zags, dips, and 360-degree turns for guaranteed thrills,” according to a press release. Each personal car is equipped with manual hand brakes to control the ride’s pace, but the coaster does feature a 430-foot drop, so be careful with your phones while Instagramming the view.

The Rocky Mountain Coaster is open-year round, though it will initially mostly only be open on weekends. Solo rides cost $25, and a two-ride pass can be purchased for $35. (Resort guests get an exclusive discount.)

[h/t Urban Daddy]

nextArticle.image_alt|e
Star Wars © & TM 2015 Lucasfilm Ltd. All Rights Reserved.
arrow
Pop Culture
How to Perform the Star Wars Theme—On Calculators
Star Wars © & TM 2015 Lucasfilm Ltd. All Rights Reserved.
Star Wars © & TM 2015 Lucasfilm Ltd. All Rights Reserved.

The iconic Star Wars theme has been recreated with glass harps, theremins, and even cat meows. Now, Laughing Squid reports that the team over at YouTube channel It’s a small world have created a version that can be played on calculators.

The channel’s math-related music videos feature covers of popular songs like Luis Fonsi’s "Despacito," Ed Sheeran’s "Shape of You," and the Pirates of the Caribbean theme, all of which are performed on two or more calculators. The Star Wars theme, though, is played across five devices, positioned together into a makeshift keyboard of sorts.

The video begins with a math-musician who transcribes number combinations into notes. Then, they break into an elaborate practice chord sequence on two, and then four, calculators. Once they’re all warmed up, they begin playing the epic opening song we all know and love, which you can hear for yourself in all its electronic glory below.

[h/t Laughing Squid]

SECTIONS

arrow
LIVE SMARTER
More from mental floss studios