The physicist Kristian Birkeland exposed the fraud of the direct voice medium Etta Wriedt. Birkeland turned on the lights during a séance, snatched her trumpets and discovered that the "spirit" noises were caused by chemical explosions induced by potassium and water and in other cases by lycopodium powder.[160] The British medium Isa Northage claimed to materialize the spirit of a surgeon known as Dr. Reynolds. When photographs taken of Reynolds were analyzed by researchers they discovered that Northage looked like Reynolds with a glued stage beard.[161]
Do compose your emotions and appearance to hide any revealing information about yourself. Your facial expression, style of dress, personal mannerisms, and emotional outbursts can tell a psychic, especially a false one, a great deal about you to make it look like she knows all these things from a paranormal reading, when in fact, she is merely interpreting your physical appearance or reactions.
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