# Happy Square Root Day!

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[
3/3/09: Math fans to celebrate Square Root Day
REDWOOD CITY, Calif. ? Dust off the slide rules and recharge the calculators.
Square Root Day is upon us.
The math-buffs' holiday, which only occurs nine times each century, falls on
Tuesday ? 3/3/09 (for the mathematically challenged, three is the square root of
nine).
"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 started a contest meant to get people excited about the event.
The winner gets, of course, \$339 for having the biggest Square Root Day event.
Gordon's daughter even set up a Facebook page ? one of a half-dozen or so
dedicated to the holiday ? and hundreds of people had signed up with plans to
celebrate in some way. Celebrations are as varied: Some cut root vegetables into
squares, others make food in the shape of a square root symbol.
The last such day was five years ago, Feb. 2, 2004, which coincided with
Groundhog Day. The next is seven years away, on April 4, 2016.
]
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I think March 9, 2027, will be more interesting. The most recent one of those (Square-Cube Day, I suppose) was February 4, 2008. If you want a real Cube day, you'll have to wait until February 8, 2512. That happens every 1,000 years; but only if you ignore the first digit of the year. Otherwise, February 8, 512 is about all you get, if they even had a February back then.
KG
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And 19 January 2038 .... (03:14:07 UTC on Tuesday, 19 January)
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My root is long and tapered. Would you like to see a picture of it?
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Otherwise, February 8, 512 is about all you get, if they even had
We use basically Caesar's calendar, July was named for him and August for the emperor Augustus who followed him.
If the Church hadn't reset it, this year would be ~=3D 2760.
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At five minutes and six seconds after 4 AM on the 8th of
=A0July this year, the time and date will be 04:05:06 07/08/09. This will
=A0never happen again
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Sure it will..in 1000 yrs
Gunner
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Not this century, anyway.

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