Dowsing, also known as divining or water witching, is the practice of ascertaining the presence of underground water or minerals using a forked twig or a pendulum. Dowsing has existed in various forms for thousands of years, and while it may have originally been rooted in divination of the will of the gods, the practice was later associated with Satan. Many skeptics believe that dowsing successes result mostly from chance. What did the 1987 Munich study of more than 500 dowsers conclude? Discuss