Then it occurred to me that the drywasher was designed by an engineer. Gotta love engineers! Those slide-rule geeks always tinker with gravity, angles, curves and flow.

There are both hard rock and beach sand types of titanium deposits, but the hard rock deposits need to be at least 10 percent titanium while the beach sands often are economic with only two or three percent titanium.

The design of metal detectors well-suited for prospecting is an interesting process and not necessarily an easy one to achieve. It is a combination that blends the desires of what prospectors would like, the requirements of sales people and dealers, with the science and physics of what the electronics can achieve.

I looked over and saw Ben on his knees, digging at the edge of the Manzanitas, almost underneath them. I thought back to the previous weekend when we were planning this trip—that day had been a “Ben day.”