Square Root April Fool’s Day
Electrical engineer Aziz Inan, of the University of Portland, recently noticed that April 1st, 2009 is a square root date. From USA Today
April Fool's Day, April 1, 2009 is 04/01/2009, or 4012009, which has 2003 as a square root (2003 * 2003 = 4012009.)...
The next April Fool's square date doesn't fall until April 1, 6016 (2004*2004 = 4016016.)
Of course, this is of no significance whatsoever. Or is it???
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(3312400 = 1820*1820)
On March 31, 2400, I'll be celebrating my 441st birthday, so I appreciate knowing it's a square root day.
http://en.wikipedia.org/wiki/Calendar_date shows an interesting overview of date formatting around the world, both on a map and by listed countries: the most common is dd/mm/yyyy, used by 106 countries; only six use mm/dd/yyyy!
In holland we note april-fools as:
and then things don't seem to be a square root al all 😊
the root of 01042009 = 1020,7884207807218264635454180032
I like the idea of spraying fake snow on someone's windows over night--if they don't shoot you as a prowler
If you have to ask, you've been fooled.
(01-04-2441 = 1042441 = 1021*1021)
The last was 400 AD.
(01-04-0400 = 1040400 = 1020*1020)
Thanks to my math-whiz brother for this observation.
(I commonly use YYYYMMDD on archive filenames so they are easily sortable. This is the ISO 8601 standard for the truly geeky.)