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]

There is no shortage of stunning, dynamic tarot decks. Since the mid-twentieth century, hundreds — if not thousands — of beautiful decks have been published. The Tarot de Marseille deck is an elegant reproduction of a classic French deck; the Motherpeace deck perfectly captures the ethereal spirit of the 1970s; the Black Power deck spotlights famous black luminaries.


Like common playing cards, the tarot has four suits (which vary by region: French suits in Northern Europe, Latin suits in Southern Europe, and German suits in Central Europe). Each suit has 14 cards, ten pip cards numbering from one (or Ace) to ten and four face cards (King, Queen, Knight, and Jack/Knave). In addition, the tarot has a separate 21-card trump suit and a single card known as the Fool. Depending on the game, the Fool may act as the top trump or may be played to avoid following suit.[1] These tarot cards, without occult symbology, are still used throughout much of Europe to play card games.
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