using Litz wire and Faraday shielding.
One of the most unique features of the book is a dedicated chapter on dowsing and Long Range Locators (LRLs). In interviews, the authors described themselves as "confirmed skeptics" where these topics are concerned and were prepared for questions on this subject. The chapter is designed to provide a scientific and critical analysis of pseudoscientific claims, aiming to educate readers about the empirical results and why such methods are not considered valid.
Metal near the coil shifts its frequency. The circuit mixes these signals to create an audible "beat" note.
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