These street signs were found in Scottsdale, Arizona.

The street signs say...

+--------------------+ | 1st Ave 7500 -> | | N 75th St 3900 -> | +--------------------+ the numbers are: 7500 3900 75 1 the math is: log(sqrt(7500 / 75)) = 1^3900 observe... 7500 / 75 = 100 sqrt(100) = 10 log(10) = 1

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

**Created:** 03 December 2006

This work is licensed under a Creative Commons License.