Happy Pi Day/Einstein's Birthday!

[Dr. Strange]

Some fun pi facts: http://facts.randomhistory.com/2009/07/03_pi.html

[DetlefK]

1. Did you know, you actually need only the first 39 digits of pi?

"46.Thirty-nine decimal places of pi suffice for computing the circumference of a circle girding the known universe with an error no greater than the radius of a hydrogen atom."

With my calculator I calculated a ratio of 37 decimals, but that's probably from digital rounding errors.



There's a german poem to memorize the first 20 digits of pi. I learned it back in school (out of curiosity) and I still know it.

[lastlib]

2. The floating point error inherent in solid-state microprocessors....

...would make anything past the 16th decimal place on a calculator suspect.

(But it's cool anyway!) Happy Pi Day! In four years, we'll have a BIG blowout! (3.14.16)

[progressoid]

3. Kate Bush - Pi

[pokerfan]

4. pi is still wrong

Vi Hart's fantastic video from last year:

[Dr. Strange]

5. Viva la tau!

[Jim Lane]

6. "It's Adam and Pi, not Adam and Tau!"

Credit for that response to DUer mahatmakanejeeves, in a thread keyed to Tau Day last year: http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=102&topic_id=4900188&mesg_id=4900188