About the Author

John P. Wallace attended Columbia University, the Henry Krumb School of Mines, and worked in the labs of Polykarp Kusch. He wrote theses for Martin Gutzwiller and John K. Tien. He worked for short periods at IBM Watson Labs, Magnetic Analysis Corp, Westinghouse Research Labs and University of Minnesota. Most of the last 30 years, he has been running his own company Casting Analysis Corp which develops and manufactures instruments for crystal growth, metal defect detection and instruments for monitoring hydrogen in metals. Michael J.Wallace attended Hampden-Sydney College and learned experimental physics from Weyland Joyner. During the summer, He built and operated ELF sounding tools with the help of Casting Analysis Corp instrumentation, worked at the NRAO in Greenbank, West Virginia on the calibration of the Byrd telescope, and later the analysis of VLBA data for Dr. Grant Denn formerly of Sweet Briar College. Attending Montana Tech he did a master's thesis for Prof. William Sill focused on Electrical Geophysics. Since graduating in 2006, he has been employed at Willowstick Technologies LLC doing ground water mapping as a geophysical service on dams, mines, oil fields, aqueducts and reclamation sites.