Yay p-adics!

[sniffnoy]

So today Mr. Sally introduced the p-adic numbers, and he told us the following story:

One year when he introduced the p-adic absolute value and a student asked just what it measured, Mr. Sally responded, "The p-adic absolute value measures a rational number's p-ness."

(Try saying that aloud if you don't get it.)

I'm certain there was something else I meant to write, but it escapes me right now.

-Sniffnoy