Feeling Square?

It's 3/3/09, also known as Square Root Day! (The day and the month are both the square root of the last two digits in the current year.)

According to Wikipedia, square root days fall upon the same nine dates each century. The next square root day will be April 4, 2016 (4/4/16). You can also mark your calendars for 5/5/25, 6/6/36, 7/7/49, 8/8/64 and 9/9/81.

"These days are like calendar comets, you wait and wait and wait for them, then they brighten up your day — and poof — they're gone," said Ron Gordon, a Redwood City teacher who's helping to promote this holiday.

Now the real question is, how to celebrate? One suggested way of celebrating the holiday is by eating square radishes, or other root vegetables cut into shapes with square cross sections. You can also get things squared away, eat root veggies, go square dancing or root for the underdog as suggested by the Oakland Tribune.

What's Gordon doing? Tying square knots and drinking root beer out of a square glass.

Don't worry, if this math holiday caught you by surprise, there's another one right around the corner! Pi Day is 3.14.