What is a Square Root Day?
From Wikipdedia:
Square Root Day is an unofficial holiday celebrated on days when both the day of the month and the month are the square root of the last two digits of the year.[1] For example, the current Square Root Day was March 3, 2009 (3/3/09), and the next Square Root Day will be April 4, 2016 (4/4/16). The final Square Root Day of the century will occur on September 9, 2081. Square Root Days fall upon the same nine dates each century. The exceptions during this millennium are during the 21st century with the 10/10/2100 day and 22nd century with the 11/11/2121 and 12/12/2144 days also being the Square Root Days.
Ron Gordon, a Redwood City, California high school teacher, created the first Square Root Day for September 9, 1981 (9/9/81). Gordon remains the holiday's publicist, sending news releases to world media outlets.[2] Gordon's daughter set up a Facebook group where people can share how they were celebrating the day.[3]
One suggested way of celebrating the holiday is by eating square radishes, or other root vegetables cut into shapes with square cross sections (thus creating a "square root").Full list of Square Root Days
Square Root Day occurs on the following dates each century:
- 1/1/01
- 2/2/04
- 3/3/09
- 4/4/16
- 5/5/25
- 6/6/36
- 7/7/49
- 8/8/64
- 9/9/81
The number of years between consecutive Square Root Days in a century are consecutive odd numbers: 3, 5, 7, 9, 11, 13, 15, 17. This illustrates the fact that every odd number is the difference of two consecutive squares.
This calls for a celebration!
(or, just another excuse to hang out & have a glass of wine while watching American Idol!)
My sister Becks and I are both math teachers and self-proclaimed numbers dorks, so we decided to have an impromptu celebration of Square Root Day by drinking some wine...specifically this wine:
A red wine, made from a blend of 3 types of red wine! It just seemed fitting!
(And, it is currently my favorite bottle of red wine under $10!)
Claire also participated in the 3.3.09 Square Root Day by having 3 poopie diapers today! That was a first for her! Usually she is 1 time a day or every other day.Don't worry...I spared you and didn't take pictures of those!
Funny...that's MY favorite wine currently!!! I love that wine too
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