[조이누리 기자단]이세빈-Π day , And what day is next? It's Day!

&nbsp;&Pi; day , And what day is next? It&#39;s Day!

조이누리 기자단 이세빈

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Pi Day is an annual celebration of the mathematical constant &pi; (pi). And that day was yesterday, March 14! The earliest known official or large-scale celebration of Pi Day was organized by Larry Shaw in 1988 at the San Francisco Exploratorium, where Shaw worked as a physicist, with staff and public marching around one of its circular spaces, then consuming fruit pies. For Pi Day 2010, Google presented a Google Doodle celebrating the holiday, with the word Google laid over images of circles and pi symbols. Even though &#39;Pi Day&#39; is the most famous day in the field of mathematics, however, there are still many mathematical days in the world.

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&nbsp;&nbsp;And, it is Square Root day, Day! 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. For example, the last 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. 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&#39;s publicist, sending news releases to world media outlets. And the ohter suggested way of celebrating the holiday is by eating square radishes, or other root vegetables cut into shapes with square cross sections.

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Math lovers and numerologists take note: For 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 is the following dates when the Square Root day occurs. And now there are subtle changes on it! Commenter tubegeek points out that today could just as easily be called &quot;square day&quot;&mdash;and, by the same token, &quot;square root day&quot; could be applied to 9/3/03 and 4/2/02 rather than 3/3/09 and 2/2/04. It&#39;s all a question of semantics: the originators of square root day apparently preferred the &quot;3 is the square root of 9&quot; (3/3/09) interpretation to the alternate but equally valid &quot;the square root of 9 is 3&quot; (9/3/03) interpretation.

Also, there is a contest related to this day. The prize of this contest is the date in dollars ($339) to whomever can involve the most people in a Square Root celebration. Entries can include creating the largest square root sign from people, serving rootbeer in square glasses to the most folks, or cutting many roots into squares (well, cubes) for a square root stew.

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Isn&#39;t it exciting? Have a nice weekend!

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