These streets signs are in Pacific Beach, California. RoadHacker did not take a picture of these street signs, but he did make a video clip of them.

The street signs say...

+----------------+ | Speed Limit 25 | +----------------+ +-----------------+ | Warning: People | +-----------------+ +-----------------+ | No Parking | | Street Sweeping | ------------------- | 1st Thursday | | Every Month | | 10am - 1pm | +-----------------+the numbers are: 25 1 10 1 the math is: 10 / (1 + 1) = sqrt(25) rsPhiEval: (1 + sqrt(sqrt(25))) / (log(10) + 1) = Phi * Phi is the golden ratio and it approximates 1.61803399 rsStateEval: 25 + (1 + 1 + log(10))! = 31 * California was the 31st state admitted to the Union. rsTweetLenEval: summation(10, 25) / (1 + 1) = 140 * 140 is the maximum length of a Twitter posting (tweet). * summation(10, 25) = 10+11+12+...+23+24+25 = 280 rsTweetLenEval: sqrt(25)! + 10 * (1 + 1) = 140 * 140 is the maximum length of a Twitter posting (tweet). more math: 25^(1 - 1) = log(10) off-by-one rsAgeEval: summation(1, 10) - sqrt(sqrt(25) - 1) = 54-1 * summation(1, 10) = 1+2+3+...+8+9+10 = 55 * RoadHacker was 54 years young when he found these street signs.## Update::2014.01.07

RoadHacker visited Pacific Beach during January of 2014 and he found another 25mph/street sweeping sign combination.

the numbers are: 25 1 10 1 rsCardinalityEval: 10 / sqrt(25) + 1 + 1 = 4 * There are 4 numbers in these street signs. off-by-one rsAgeEval: summation(1, 10) + sqrt(sqrt(25) - 1) = 56+1 * summation(1, 10) = 1+2+3+...+8+9+10 = 55 * RoadHacker was 56 years young when he found these street signs.

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

**Created:** 17 July 2011

This work is licensed under a Creative Commons Attribution 3.0 United States License.