List of discredited substances

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This is a list of substances or materials generally considered discredited.

A substance can be discredited in one of three ways:

1. It was widely believed to exist at one time but no longer is. Such substances are often part of an obsolete scientific theory.
2. It was once believed to have drastically different properties from those accepted now. It was widely claimed and believed to possess significant properties that are no longer attributed to it.
3. It is currently believed to exist as part of a theory that has not met the theoretical and experimental requirements of mainstream science. In particular, such a theory must be predictive.

## Substances whose existence is discredited

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Substance  | Theorized by  | From when  | Alleged definition  | Discredited by

|
|
|
|

Aether (classical element) |  | Ancient times | The medium filling the universe above the terrestrial sphere enabling transmission of light and gravity | Atomic theory
Alicorn |  | Ancient times | The horn of the unicorn, has mystical healing properties | Never found
Alkahest | Paracelsus | 1493–1541 | A universal solvent, which can dissolve every other substance, including gold | Never found (note that aqua regia can dissolve gold, but not everything)
Andrewsite | Thomas Andrews | 1871–1990 | Green mineral named for Thomas Andrews [1] | Confirmation in 1990 that the substance is composed of other minerals[1]
Caloric | Antoine Lavoisier | 1783 | Weightless fluid, the substance of heat | Atomic theory, in which heat is interpreted as energy of motion of atoms
Coronium | Charles Augustus Young and William Harkness | 1869 | Chemical element in the solar corona | In the 1930s, Walter Grotrian and Bengt Edlén discovered that the spectral line in question was due to highly ionized iron
Élan vital | Henri Bergson | 1907 | Substance or force bearing the property of life | Molecular biology
Elixir of life | Mythology | Ancient times | Substance believed by alchemists to confer immortality | Never found
Erototoxins | Judith Reisman | after 1955 | Addictive chemicals produced in the brain by pornography | Addictive opioids (i.e. endorphins) in the brain are related to pleasure in general, not specific to pornography[2]
Luminiferous aether |  | 18th century | Medium for the propagation of light | Michelson–Morley experiment
Miasma |  | Ancient times | Foul smell believed to carry diseases | Modern biology, in particular the discovery of actual infectious agents
Nebulium | William Huggins | 1864 | An element in the Cat's Eye Nebula | In 1927, Ira Sprague Bowen showed that the observed spectral lines are emitted by doubly ionized oxygen
N-rays | Prosper-René Blondlot | 1903 | A form of radiation emitted by most substances | A simple null experiment, where Blondlot thought he could see the effects of N-rays even when an essential component had been removed from the experimental apparatus
Odic force | Carl Reichenbach | 1845 | Force bearing the property of life | Lack of experimental evidence and any predictive theory; never accepted by science
Orgone energy | Wilhelm Reich | 1930s | Energy bearing the property of life | Lack of experimental evidence and any predictive theory; never accepted by science
Panacea | Alchemists | Ancient times | Substance curing all illness | Modern biology and medicine
Philosopher's stone | Alchemists | Ancient times | Legendary substance that could transmute lead into precious metals | Transmutation requires nuclear processes. The first synthesis of gold was conducted by Japanese physicist Hantaro Nagaoka in 1924, who synthesized gold by bombarding mercury with neutrons.
Phlogiston | Johann Joachim Becher | 1667 | Weightless substance present in combustible materials and released when they are burned | Modern chemistry, specifically the discovery that combustion is the combination of various substances with oxidizers, most commonly oxygen
Polywater |  | late 1960s | A polymerised form of water | More careful experiments with rigorously cleaned glassware showed that it was just contaminated water
Ptomaines |  |  | Alkaloids found in decaying matter thought to cause food poisoning | Discovery of bacteria (Germ theory of disease)
Red mercury | Hoax | 1979 | Controversial substance supposedly of use to terrorists | Its actual nature, if any, is unclear. The notion may have been invented for use by Soviet and Russian sting operations targeting nuclear materials trafficking. It is also possible that the phrase may have originated as a codeword in Soviet nuclear weapons development, much as the word "copper" was once used to obfuscate "plutonium" during the Manhattan Project.

## Substances whose properties are discredited

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This is not to be construed as implying that these items-as they are understood today-are discredited. What is listed are fire, water, metal, etc. as universal principles or fundamentals.

* Classical elements and Chinese elements discredited by atomic theory and nuclear physics.
* Fire (classical element)
* Water (classical element)
* Earth (classical element)
* Air (classical element)
* Wood (classical element)
* Metal (classical element)
* Aether (classical element): Now known not to exist (see above)
* The four bodily humours: Blood, Phlegm, Black Bile, and Yellow Bile. Fluids believed to determine health and character. Discredited by modern biology, including discovery of hormones.
* The tria prima of Paracelsus and later alchemy: Salt, Mercury and Sulphur. Discredited by modern chemistry (the atomic theory and modern understanding of elements and compounds).

## See also

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* List of fictional elements, materials, isotopes and subatomic particles
* List of misidentified chemical elements

## References

[edit]

1. ^ a b "Andrewsite: Andrewsite mineral information and data". www.mindat.org. Retrieved 2017-03-01.
2. ^ Nair, Mohan; Friedman, Rob; Maram, Wesley. "I20 Pornography and Sexual Violence: Is There a Connection?", Seattle 2010, Forensic Psychiatry and Behavioral Science, 2002-2011 Proceedings of the American Academy of Forensic Sciences, p. 28.

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Pseudoscience

List of topics characterized as pseudoscience

Terminology|

* Cargo cult science
* Charlatan
* Crank
* Fringe theory
* Fringe science
* Pseudoarchaeology
* Pseudohistory
* Pseudomathematics
* Junk science
* Paranormal
* Pathological science
* Quackery
* Snake oil
* Superseded scientific theory
* True-believer syndrome
* Voodoo Science

Topics
characterized as
pseudoscience|

| Medicine|

* Acupuncture
* Aromatherapy
* Adrenal fatigue
* Alternative medicine
* Anthroposophic medicine
* Applied kinesiology
* Ayurveda
* Bates method
* Biorhythms
* Bloodletting
* Body memory
* Chiropractic
* Chromotherapy
* Correactology
* Cryonics
* Crystal healing
* Cupping
* Detoxification
* Colon cleansing
* Doctrine of signatures
* Doktor Koster's Antigaspills
* Ear candling
* Electromagnetic hypersensitivity
* Energy medicine
* Fad diet
* FasciaBlaster
* Germ theory denialism
* HIV/AIDS denialism
* Homeopathy
* Humorism
* Iridology
* Leaky gut syndrome
* Lunar effect
* Macrobiotic diet
* Magnet therapy
* Miracle Mineral Supplement
* Naturopathy
* Palmistry
* Panchagavya
* Patent medicine
* Phrenology
* Primal therapy
* Radionics
* Reiki
* Traditional medicine
* Traditional Chinese medicine
* Trepanning
* Vertebral subluxation
* Wind turbine syndrome
* Young blood transfusion

|

Social science|

* 2012 phenomenon
* Ancient astronauts
* Arabian Judah theory
* Catastrophism
* Conspiracy theory
* 5G conspiracy
* 9/11 conspiracy theories
* Chemtrail conspiracy theory
* Climate change denial
* COVID-19 misinformation
* Moon landing conspiracy theories
* Conversion therapy
* Generational theory
* Generationism
* Strauss–Howe generational theory
* Hollow Earth theory
* Indigo children
* Japhetic theory
* Mediumship
* Nazi archaeology
* Nibiru cataclysm
* Parapsychology
* Pseudoarchaeology
* Pseudohistory
* Genocide denial
* Historical negationism
* Holocaust denial
* Pseudolaw
* Recovered-memory therapy
* Past life regression
* Scientific racism
* Aryan race
* Melanin theory
* Myers–Briggs Type Indicator
* Enneagram of Personality

Physics|

* Anti-gravity‎
* Cold fusion‎
* Faster-than-light travel‎
* Perpetual motion‎
* Quantum mysticism
* Reactionless drive
* Dean drive
* EMDrive
* Teleportation‎
* Tractor beam
* Water-fueled car

Other|

* Alchemy
* Aquatic ape hypothesis
* Astrology
* Biodynamic agriculture
* Biological transmutation
* Creation science
* Cryptozoology
* Dianetics
* Auditing
* Dowsing
* Electronic voice phenomenon
* Eugenics
* Facilitated communication
* Feng shui
* Flat Earth theory
* Graphology
* Intelligent design
* Laundry ball
* Law of attraction
* Levitation
* Lysenkoism
* Numerology
* Orgone
* Polygraph
* Pseudoscientific metrology
* Rapid prompting method
* Statement analysis
* Ufology
* Voice stress analysis
* Water memory

Promoters of
pseudoscience|

* Sucharit Bhakdi
* Del Bigtree
* Igor and Grichka Bogdanoff
* Brigitte Boisselier
* Rhonda Byrne
* Robert Charroux
* Deepak Chopra
* Clonaid
* Vernon Coleman
* Ignatius L. Donnelly
* Gaia, Inc.
* Max Gerson
* Nicholas Gonzalez
* Goop (company)
* Graham Hancock
* David Icke
* William Donald Kelley
* Robert F. Kennedy Jr.
* Corentin Louis Kervran
* The Light (newspaper)
* Mike Lindell
* Jenny McCarthy
* Joseph Mercola
* Judy Mikovits
* Ministry of Ayush
* Theodor Morell
* Hans Alfred Nieper
* Mehmet Oz
* Raël (Claude Vorilhon)
* Robby Starbuck
* Randolph Stone
* Paul Joseph Watson
* Andrew Wakefield

Related topics|

* Bogdanov affair
* Bourgeois pseudoscience
* Demarcation problem
* Scientific method
* Suppressed research in the Soviet Union

Resources|

* Committee for Skeptical Inquiry
* Cults of Unreason
* An Encyclopedia of Claims, Frauds, and Hoaxes of the Occult and Supernatural
* Fads and Fallacies in the Name of Science
* Fortean Times
* James Randi Educational Foundation
* Quackwatch
* Skeptical Inquirer
* The Demon-Haunted World
* The Natural History of Quackery
* The Psychology of the Occult
* The Ragged Edge of Science
* The Skeptic Encyclopedia of Pseudoscience
* The Skeptic's Dictionary

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