Order Digital Reprints
Want a PDF of this article as it appeared in print?
Order Here!
Filed Under
Sign Me Up!
Join your colleagues who already get great content delivered right to their inbox.
Sign up Digital!
If you don't want to bring your iPad into the bathroom, we can send you a magazine subscription for free!
Subscribe to Print!
People have long searched for things underground: Water, food, metals, minerals, gems and fuel were early targets. Divining rods, aka dowsing rods, were the first “technology” employed in the search. These devices date back to around 6000 BCE, according to archaeologists. Dowsing...
