# How to Calculate Pi with a Shotgun

We all know pi, at least the first three digits of it. If for some reason you forgot them though, there's good news. All you need to get that knowledge back is some aluminum foil, ingenuity, and a shotgun.

We all know pi, at least the first three digits of it. If for some reason you forgot them though, there's good news. All you need to get that knowledge back is some aluminum foil, ingenuity, and a shotgun.

Cristian Ilies Vasile has created the coolest visualization of Pi I've seen. First he divided a circle in 10 segments, from 0 to 9. Then he traced a path going from the third segment to the first segment. From 1, the path jumps to 4, then back to 1, then 5 and so on. After a while, π appears in front of your eyes. The…

Recreational *mathemusician* Victoria Hart—aka Vi Hart—gives overwhelming (and fun!) evidence that clearly demonstrates that Pi is a stupidly common number and the fascination of people with this number is just dumb.

Martin Krzywinski is an artist. No, wait, he's a mathematician. Actually, scratch that: he's both, and he can make the number Pi look insanely beautiful.

When an amateur mathematician from Indiana managed to solve one of mathematics' great problems—squaring the circle—he decided to copyright his proof, but allow his home state to use it for free. Sadly, things didn't quite go to plan.

Pi is famously calculated to trillions of digits—but how many of them do we really, *really* need? This video demonstrates that, actually, just 39 will do.

How many numbers of Pi can you rattle off? Probably not many. Probably even fewer if you're drunk. But you can at least cheat with these glasses from TheUncommonGreen that are printed with hundreds and hundreds of digits from the mathematical constant.

Any eyes in San Francisco that weren't focused on Apple's announcements yesterday might have noticed something peculiar in the skies over the Bay area. As part of the ZERO1 Biennial—a months long festival celebrating the coming together of art and technology—an artist known only as Ishky used several planes to…

It's Pi Day! Which, okay, whatever, if you were really hardcore about celebrating you'd figure out what nanosecond corresponds to 3.14159 or whatever and pop the Moet then but you didn't and you won't so whatever, right? But! That doesn't mean we can't still have some fun with the nerdiest holiday in the land, thanks…

The traditional free pie on Pi day (3/14) is here, so go grab a slice today at participating restaurants/pie shops/pie food trucks. [Walletpop]

Happy Pi Day! But while you're getting your 3/14 on, it's worth noting that pi is worthless! A sham. A fraud. Don't believe me? Check out why we'd all be worlds better off if we threw out our pi and embraced the power of tau. [The Daily What]

What do you get when you transpose the first 31 digits of the number pi into musical notes? Math that's never sounded so good. And if ever an unofficial holiday needed an anthem to get some much-deserved recognition, it's 3/14. [Reddit via Geekosystem]

So, this is what Yahoo! employees do during work hours? Crack Pi records, using 1,000 of Yahoo!'s computers over 23 days? Glad to see they're working hard on simplifying what their company actually does...

The Pi Necklace lists the first 100 decimal places of everyone's favorite irrational number, pi. It's the perfect accessory for Pi Day, or any other day, for that matter. [RGB Laboratory via Craziest Gadgets]

Today's March 14th, which everyone knows is the day high school math club members further cement their alienation by celebrating their love of math, or circles, or whatever. But today's Sunday, so let's everyone celebrate nerddom in the comments! [Wiki]

Okay, math dorks, enjoy your day of circles and pie-related puns. Come book week, we liberal arts nerds will celebrate for SEVEN TIMES longer. How you like them numbers? [Pi Day]