Redwood City, CA - PSN -February 1 - May 22, 2009 - Channel One - North/South

Chang Heng's seismoscope
For More Information:
A New Look at an Old Tool:
the Cumulative Spectral Power of Fast-Fourier Transform Analysis
Sheng-Chiang Lee and Randall D. Peters
Physics Department, Mercer University, Macon, GA 31207

Presented by ARPSN
Amateur Radio Public Seismic Network