The PiSBN Project

pisbnPi is an interesting number.  It goes on forever, doesn’t repeat itself, and appears to be entirely random.  And in an infinite, random sequence, you get every possible combination of numbers eventually.  Your phone number is in there somewhere.  And every book written, if you convert the numbers into ASCII.

Searching Pi for books like that would be stupid though, you’ll burn up the best computers on the planet before you get anything worthwhile.  There is, however, a quicker alternative.

Almost every single book published since 1966 has an ISBN number.  These days they all start 978, then there’s another ten digits.  The last one’s a check digit made by multiplying the others up in a certain way.

So I wrote a program that searches Pi for ISBN numbers.  Then it checks them to see if the check digit is a valid one.  Then it looks the ISBN up on Google Books.

Something about this project just tweaks the book nerd in me. My only complaint is that it’s not “ISBN number” it’s “ISBN.” Saying “ISBN number” is like saying “PIN number.”

Read all about it at Artificial Philosophy.

One Reply to “The PiSBN Project”

  1. Yup, fair call! It’s RAS* syndrome, nearly as annoying as PIN numbers. Mea culpa 😉

    Best,
    Geoff

    *Redundant Acronym Syndrome

Leave a Reply

Your email address will not be published. Required fields are marked *