Avogadro

Randy Weiss saw this mathematically significant roadsign and knew instantly that it smacked of Avogadro's number! He pulled off the highway and ferreted the back streets to find a view of the sign.



Mr. Weiss had to hunker down for a while to get the math to work out though. Elegant? No. But it does work.

$$\ln \bigl( ( \sqrt { \sqrt {146 + 6 } } ) ^{(\sqrt{22 +1})} \bigl) \times 10^{23} \rightarrow 6.02 \times 10^{23} \rightarrow N_A$$

This sign is on I-95 as you go through Providence, Rhode Island.

Ed.: In a rash of high scoring signs, this sign now takes the 2nd highest score.