Tuesday, March 8, 2011

Knowledge Tuesdays: March 8, 1982 and the Number 29

Today is my 29th birthday, and I thought today I'd mention a few facts about March 8th and the number 29.

I was born on March 8, 1982 at 6:55 AM. Here are some other important people also born on that day.
March 8, 1982
1982 – Nicolas Armindo, French race car driver
1982 – Kat Von D, Mexican-born tattoo artist
1982 – Leonidas Kampantais, Greek footballer
1982 – Craig Stansberry, American baseball player
1982 - Nicoleta Onel, Romanian gymnast
1982 – Cherie Reich, American author (I can dream, right?)

Besides my birthday, there are some other holidays celebrated or possibly celebrated on March 8th. 
Holidays on March 8
Christian Feast Day:
          * John of God
          * Philemon the actor
Earliest day on which Canberra Day can fall, while March 14 is the latest; celebrated on the second Monday in March. (Australian Capital Territory)
Earliest day on which Commonwealth Day can fall, while March 14 is the latest; celebrated on the second Monday in March. (Commonwealth of Nations)
Earliest day on which Passion Sunday can fall, while April 11 is the latest; observed on the fifth Sunday of Lent. (Christianity)
International Women's Day or Mother's Day (primarily Eastern Europe, Russia, and the former Soviet bloc)
Revolution Day (Syria)
It so happens to be Mardi Gras today this year.

And, I turned 29 today. Yes, my last year in my twenties, although there is part of me that's very excited to turn 30 next year.

Here are some fun facts about the number 29.
Successive primes up to 29 are separated at most by 3 integers (the mean gap being 2).
is the smallest prime of the form 7n + 1.
is the 7th Lucas number.
is a Perrin number. In mathematics, the Perrin sequence is defined by the recurrence relation: P(0) = 3, P(1) = 0, P(2) = 2;
and P(n) = P(n - 2) + P(n - 3), for n > 2.
is the 3rd number n (following 1 and 5) such that 2n2 - 1 is a square, in fact: 2 x 292 - 1 = 412 -- Source: 'Dictionary of Curious and Interesting Numbers' by David Wells
is the exponent of the largest power of 2 whose digits are all distinct: 229 = 536 870 912

= 22 + 32 + 42 (sum of 3 consecutive squares)
= 3 + 5 + 7 + 11 + 13 (sum of consecutive primes)

= square root(6! + (6! + 6)/6)

= (2 x 9) + (2 + 9)

292 = 212 + 202 (Pythagorean triple)

TWENTY NINE is the only number written with as many strokes as its numerical value.

The probability of being born on 29th February is 1/1,461.
Bob Morris wrote:
Is really 1/1,461 the probability of being born on February 29? If leap years occurred once every four years, it would be, but there are a couple of additional rules for determining if a year is a leap year. If it is divisible by 100, it is not a leap year, but if it is divisible by 400, then it is a leap year (for example, 1900 was NOT a leap year because it is divisible by 100. The year 2000 IS a leap year because it is evenly divisible by 100 and by 400). This means that in any 400 year period, there are 365 x 400, or 146,000, non-leap days. Leap days number 100 (one every four years) - 4 (one every hundred years) + 1 (one every four hundred years), so there are 97 leap days every 400 years.
The probability of being born on February 29 is therefore 97/146,097.
Leap Year Checker
Is the year: a leap year? Answer:

29.783 km/s is the average orbital speed of the Earth around the Sun.

29.53 days is the amount of time for the Moon to complete one orbit around the Earth (synodic month).

The planet Saturn requires over 29 years to orbit the Sun (solar revolution).

is the number of bones in a normal human skull.
is the number of days February has on leap years.

In numerology, 29 is a very unlucky number and indicates uncertainties, treachery and deception from others. It also stands for dangers, unreliable friends, grief and deception from the opposite sex.
In the Tarot, the 29 is represented by the 3 of Wands. It infers spiritual power, introspection, reflection and receptivity.


D U Okonkwo said...

Cool - You learn something new everyday! Happy Birthday!

Nicole Zoltack said...

Happy Birthday, Cherie!

Rachel Searles said...

Mmmaaattthhh! Ouch, I haven't looked at that many equations since high school. Happy birthday! :)

alberta ross said...

Hi - I have a suprise for you over at my place

Christine said...

Ow! All those numbers made my head hurt! *LOL* I hope you had a fantastic birthday. You're the first person I've ever heard say you were looking forward to 30.

Kerri Cuev said...

Happy Birthday! Have a great one.

All the numbers reminded me of why I never liked Math. Lol!

Regina said...

Happy Birthday!

Those are some really interesting facts. Thank you for sharing them with us.

Cherie Reich said...

D U Okonkwo - Thank you! I thought they were some rather interesting facts.

Alberta - Thank you! Heading over to see what the surprise is. :)

Eileen Wiedbrauk said...

Hello and happy birthday!

I'm a crusader stopping by and I have to say that your banner picture is fabulous & so fun!

Summer Ross said...

Happy birthday- a day late- sorry. Have a wonderful week!

Cherie Reich said...

Eileen - It's nice to meet you! Thanks for the birthday wishes and I'm glad you like the banner. :D

Summer - Thank you!

Madeline Bartos said...

Happy belated birthday! What better way to celebrate than with lots of math! :D