# Pi Day!

March 14th (3/14) is, of course, Pi Day (3.14… get it?). so this made me wonder what other days are out there. Let’s take a looksie:

January 2nd – Apery’s Constant Day
January 3rd – Plastic Constant Day
January 4th – Porter’s Constant Day
January 5th – Lieb’s Square Ice Constant Day
January 6th – Golden Ratio Day
January 9th – Brun’s Constant For Twin Prime Day
January 13th – Viswanath’s Constant Day
January 18th – Khinchin-Levy Constant Day
February 5th – Feigenbaum’s Alpha Constant Day
February 7th – e Day (Napier’s Constant)
February 8th – Fransen-Robineson Constant Day
April 6th – Feigenbaum’s Delta Constant Day
May 5th – Nuclear Magnaton times 10^27 Day
May 6th – Stefan-Boltzmann Constant times 10^8 Day
June 2nd – Avogadro’s Number divided by 10^23rd Day
June 6th – Planck’s Constant times 10^34 Day
August 8th – Electric Permittivity of Free Space times 10^12 Constant Day
August 9th – Coulomb’s Constant divided by 10^9th Day
December 10th(^3) – Molar Mass of Carbon 12 Day

Some might disapprove of my decision to include either one or two digits for the ten’s and hundreth’s place holders. Example: 4.3 or 4.03 could both be taken as April 3rd.

My personal favorite might be Nuclear Magnaton times 10^27 Day.

### 10 thoughts on “Pi Day!”

• 3/14/2007 at 10:43 am

Somebody get this kid a girlfriend.

• 3/14/2007 at 11:00 am

Just to let you know. Avogadro day is actually October 23 for the 10^23’rd part. Believe me I know. Not only do I pride myself for my vast accumulation of dorky knowledge, but my high school played the Mole Song every mole day over the loud speaker during morning announcements. “A mole is a unit, or have you heard, it equals…” I now have no choice but to sing the first bit of that song to remember what Avogadro’s number actually is when I’m doing my chem calculations by hand.

• 3/14/2007 at 11:10 am

Avogadro Day is based off the multiplier?!?!

That is Total crap.

• 3/14/2007 at 11:21 am

This post is Ameri-centric.
Since we write dates the right way round in the UK, Pi Day isn’t until the 3rd of Octemvobary.

• 3/14/2007 at 12:06 pm

Very true, Avagadro Day (or “mole day” at my high school) is 10-23. Sorry.

• 3/14/2007 at 12:11 pm

Nuclear Magnaton times times 10^27 Day is awesome, if for no other reason than it is also Cinco de Mayo.

• 3/14/2007 at 1:33 pm

“Somebody get this kid a girlfriend.”

That made my day right there.