Posted
on March 14, 2015
I
love pi (and pie), so I LOVE Pi Day. Still, I've talked about it
before (most notably here - scroll down - and here), so
I was thinking “been there, done that” –
BUT!
Then
I realized that THIS year, Pi Day wasn't just Pi Day—it's Pi Day of
the Century!
You
see, pi, which is the ratio between the circumference to the diameter
of a circle, is an irrational number that goes on and on and on and
on...
Pi
starts 3.14... (and then goes on forever, never repeating itself),
and so we celebrate Pi Day on 3/14 (March 14).
But
today we get this:
3.141592653
= 3/14/15 at 9:26:53 in the morning!
So
get ready to celebrate Pi Minute at 9:26 A.M. today, and Pi Second at
the 53-second mark!
How
do you get ready?
- Make a Pi Day of the Century shirt.
- Make (or buy) and eat some pie.
- Be ready to talk about the wonders of irrational numbers that go on forever!
- You can also join a Pi Day Facebook group!
Also,
happy birthday, Akira Yoshizawa, grandmaster of origami!

![]() |
Who would even think of a self-portrait in origami? |
![]() |
Origami by Brian Chan |
One
thing I noticed about Yoshizawa's work is that much of it is very
simple. I love complicated, detailed origami, such as Brian Chan's
amazing insects. But there is something so beautiful and satisfying
with some of these seemingly simple pieces.
![]() |
Origami by Yoshizawa |
Check
out a short video of Yoshizawa's work, and learn a bit of origami yourself.
Also
on this date:

Physicist Albert Einstein's birthday (scroll down)
Plan ahead:
Check
out my Pinterest boards for:
And
here are my Pinterest boards for:
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