So you want to go dowsing

The term ‘‘dowsing’’ refers to use of twigs, rods or a pendulum to find water, metals, gemstones and hidden objects from over a piece of land or a map. It is sometimes referred to as divining or water witching. What it is:

Dowsers claim that fluctuations of their chosen tool, be it a Y-shaped twig, divining rods or a pendulum, helps them to pinpoint the location of water, gems and so forth. Some ...