The British medium William Roy earned over £50,000 from his séance sitters. He confessed to fraud in 1958 revealing the microphone and trick-apparatus that he had used. The automatic writings of the Irish medium Geraldine Cummins were analyzed by psychical researchers in the 1960s and they revealed that she worked as a cataloguer at the National Library of Ireland and took information from various books that would appear in her automatic writings about ancient history.
ESP Net’s online “guidance site” asserts that it is an “unrealistic expectation” for callers to assume psychics are psychic. But its contract is more ambiguous about occult powers. While it stated I could not claim a call was “anything more than entertainment,” on the next page, awaiting my signature, was this sentence: “It is my personal feeling or understanding that I possess psychic or clairvoyant abilities.” How could I sign this? Then I thought of my supernatural ability to read my husband’s mind. Take the other morning when the dog, suffering from diarrhea, started whining at 4:45 a.m. I looked over at my husband, and despite the darkness I could see this sentence forming in his brain: “If I pretend I’m still asleep, she’ll walk the dog.” I signed.
In 1910 at a séance in Grenoble, France the apport medium Charles Bailey produced two live birds in the séance room. Bailey was unaware that the dealer he had bought the birds from was present in the séance and he was exposed as a fraud. The psychical researcher Eric Dingwall observed the medium Bert Reese in New York and claimed to have discovered his billet reading tricks. The most detailed account at exposing his tricks (with diagrams) was by the magician Theodore Annemann.
The trance medium Leonora Piper was investigated by psychical researchers and psychologists in the late 19th and early 20th century. In an experiment to test if Piper's "spirit" controls were purely fictitious the psychologist G. Stanley Hall invented a niece called Bessie Beals and asked Piper's 'control' to get in touch with it. Bessie appeared, answered questions and accepted Hall as her uncle. The psychologist Joseph Jastrow wrote that Piper pretended to be controlled by spirits and fell into simple and logical traps from her comments. Science writer Martin Gardner concluded Piper was a cold reader that would "fish" for information from her séance sitters. The physiologist Ivor Lloyd Tuckett who examined Piper's mediumship in detail wrote it could be explained by "muscle-reading, fishing, guessing, hints obtained in the sitting, knowledge surreptitiously obtained, knowledge acquired in the interval between sittings and lastly, facts already within Mrs. Piper's knowledge."
In the 1-to-many mode a user presents biometric data such as a fingerprint or retina scan and the reader then compares the live scan to all the templates stored in the memory. This method is preferred by most end-users, because it eliminates the need to carry ID cards or use PINs. On the other hand, this method is slower, because the reader may have to perform thousands of comparison operations until it finds the match. An important technical characteristic of a 1-to-many reader is the number of comparisons that can be performed in one second, which is considered the maximum time that users can wait at a door without noticing a delay. Currently most 1-to-many readers are capable of performing 2,000–3,000 matching operations per second.
“It has been said that all of life is our teacher and we are forever in a classroom. That makes so much sense as we definitely are on a journey in each of our lives. Along the way, my travels crossed paths with a very caring, compassionate and intuitive woman name Denise Lescano. A psychic medium with incredible talents and abilities, she has continuously shown this grief and life coach what a professional medium is about. Over the last 5 years, Denise has demonstrated to me what character, integrity, respect, compassion and sincerity ...“
The first thing you should know before going to a medium demonstration or private reading is that psychic mediums are basically a human telephone to the spirit world—they communicate with spirits. Unfortunately, they are a telephone without a dial. A psychic medium can’t just call up anyone from the spirit world with whom you want to talk. Instead, you get whoever is on the other end when the psychic medium “links” with the spirit world.
The magician Samri Baldwin exposed the tricks of the Davenport brothers in his book The Secrets of Mahatma Land Explained (1895). The medium Swami Laura Horos was convicted of fraud several times and was tried for rape and fraud in London in 1901. She was described by the magician Harry Houdini as "one of the most extraordinary fake mediums and mystery swindlers the world has ever known".
Many 19th century mediums were discovered to be engaged in fraud. While advocates of mediumship claim that their experiences are genuine, the Encyclopædia Britannica article on spiritualism notes in reference to a case in the 19th century that "...one by one, the Spiritualist mediums were discovered to be engaged in fraud, sometimes employing the techniques of stage magicians in their attempts to convince people of their clairvoyant powers." The article also notes that "the exposure of widespread fraud within the spiritualist movement severely damaged its reputation and pushed it to the fringes of society in the United States."
“Over the next 2 years, faithfully each month, Denise did group readings for the clients of the crisis center. It was a gift beyond words to those who were in great pain. During the sessions, I would try to write down everything that the spirits were saying to their loved ones and many people carried those notes with them everywhere they went!! I saw what a great comfort it was to them and how it helped tremendously with the healing process....“
In a series of experiments in London at the house of William Crookes in February 1875, the medium Anna Eva Fay managed to fool Crookes into believing she had genuine psychic powers. Fay later confessed to her fraud and revealed the tricks she had used. Frank Herne a British medium who formed a partnership with the medium Charles Williams was repeatedly exposed in fraudulent materialization séances. In 1875, he was caught pretending to be a spirit during a séance in Liverpool and was found "clothed in about two yards of stiffened muslin, wound round his head and hanging down as far as his thigh." Florence Cook had been "trained in the arts of the séance" by Herne and was repeatedly exposed as a fraudulent medium.
The magician Julien Proskauer revealed that the levitating trumpet of Jack Webber was a trick. Close examination of photographs reveal Webber to be holding a telescopic reaching rod attached to the trumpet, and sitters in his séances only believed it to have levitated because the room was so dark they could not see the rod. Webber would cover the rod with crepe paper to disguise its real construction.