Our Pi Day celebration continues! In the first segment of this series, we covered why this year is **The Pi Day of the Century**. Tomorrow, at exactly 9:26:53 am (and pm!), the date and time will match the first 10 digits of pi (3.141592653), in sequential order. This only happens once every 100 years!

Yesterday, we created a video playlist at MathTV, all about pi—some fun stuff mixed in with the informative stuff too. You can find the playlist here: http://bit.ly/pi-day-videos (or just click on the screenshot).

We dug up some other great resources for you as well. For instance, this site, The Joy of Pi, offers the most comprehensive set of relevant links you will find anywhere on the Web. David Blatner, author and speaker, takes his job as Pi Evangelist very seriously. From basic information (including the history of Pi) to the curiosities and mysteries of the enigmatic number.

If you are a total Pi Geek, and that’s not enough pi for you:

- All Things Pi from PiDay.org
- Resources from the Exploratorium
- And a huge amount of other links & resources, too!

And just for fun, here’s a *counterpoint* to all the hoopla about pi, by the inimitable Vi Hart. Ms. Hart thinks that “you deserve the truth” about pi. After all, it’s just a regular old irrational number, so she warns, “don’t let pi impress you.”

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Have you entered our t-shirt giveaway yet? It’s not too late—you have one more day!

We’re giving away 10 MathTV Pi Day T-shirts. All you have to do to enter is to follow MathTV on Twitter.*

If you’re already following us, then you can enter by sending a tweet that 1) mentions us at **@MathTV**, *AND* 2) contains the hashtag **#piday**.

- For example, “Happy #piday to all of our friends at @MathTV!”
- Or, “Have you seen the cool t-shirts from @MathTV for #piday? http://bit.ly/pi-origins target=”_blank””

We’ll pick 10 entries at random next week, after this year’s Pi Day is over. We’ll notify you via Twitter, so please don’t forget to follow @MathTV!

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*Please note that the drawing is now closed—we are no longer taking entries.