This road sign was found heading east on southbound I-17 in Phoenix, Arizona.

The road sign says...

+-----------------+ | 16th St 1/4 | | Jct 10 1 | | Sky Harbor | +-----------------+ the numbers are: 1/4 1 10 16 the math is: sqrt(1/4) x 10 - sqrt(16) = 1 more math: (1 + log(10)) / (sqrt(1/4)) = sqrt(16) more math: sqrt(16 x (1/4)) - log(10) = 1

**Creator:** Gerald D. Thurman
[gthurman@gmail.com]

**Created:** 01 October 2006

This work is licensed under a Creative Commons License.