Changes

== Public belief ==

== Public belief ==

Despite evidence and logic against pseudoscientific theories, many remain popular among the public.  Homeopathic medicine is available at most health-food stores and is a multi-billion dollar business, and 31% of Americans believe in astrology.

Despite evidence and logic against pseudoscientific theories, many remain popular among the public.  Homeopathic medicine is available at most health-food stores and is a multibillion-dollar business, and 31% of Americans believe in astrology.

Notably, twice as many [[Democrats]] believe in astrology as [[Republicans]], showing a strong bent of irrationality and scientific [[illiteracy]] among [[liberals]].<ref>http://www.harrisinteractive.com/harris_poll/index.asp?PID=359</ref>

Notably, twice as many [[Democrats]] believe in astrology as [[Republicans]], showing a strong bent of irrationality and scientific [[illiteracy]] among [[liberals]].<ref>http://www.harrisinteractive.com/harris_poll/index.asp?PID=359</ref>

There is no definitive or objective definition of the term "pseudoscience", so it is also sometimes used as a pejorative term. Pseudoscientists consider their work to be real science rather than pseudoscience. In addition to this, oftentimes theories which conflict with their theories are considered by them to be pseudoscience. Theories which are considered to be psuedoscience by the public may transition into being considered science if substantial evidence is found to support the theory. For example, before the theory of plate tectonics was fully developed, it was considered pseudoscience, whilst its predecessors, theories which involved an expanding Earth, are now considered pseudoscience.<ref>R. G. A. Dolby, ''Uncertain Knowledge: An Image of Science for a Changing World'', Published by Cambridge University Press, 2002. ISBN 0521892627, 9780521892629, 380 pages. [http://books.google.co.uk/books?id=xd3ylT3WTLEC&pg=PA191&dq=pseudoscience+pejorative&num=100&as_brr=3 Page 191]</ref><ref>Brian Stableford, ''Science Fact and Science Fiction'', Published by CRC Press, 2006, ISBN 0415974607, 9780415974608, 729 pages. [http://books.google.co.uk/books?id=uefwmdROKTAC&pg=PA410&dq=pseudoscience+pejorative&num=100&as_brr=3 Page 410]</ref>

There is no definitive or objective definition of the term "pseudoscience", so it is also sometimes used as a pejorative term. Pseudoscientists consider their work to be real science rather than pseudoscience. In addition to this, oftentimes theories which conflict with their theories are considered by them to be pseudoscience. Theories which are considered to be pseudoscience by the public may transition into being considered science if substantial evidence is found to support the theory. For example, before the theory of plate tectonics was fully developed, it was considered pseudoscience, whilst its predecessors, theories which involved an expanding Earth, are now considered pseudoscience.<ref>R. G. A. Dolby, ''Uncertain Knowledge: An Image of Science for a Changing World'', Published by Cambridge University Press, 2002. ISBN 0521892627, 9780521892629, 380 pages. [http://books.google.co.uk/books?id=xd3ylT3WTLEC&pg=PA191&dq=pseudoscience+pejorative&num=100&as_brr=3 Page 191]</ref><ref>Brian Stableford, ''Science Fact and Science Fiction'', Published by CRC Press, 2006, ISBN 0415974607, 9780415974608, 729 pages. [http://books.google.co.uk/books?id=uefwmdROKTAC&pg=PA410&dq=pseudoscience+pejorative&num=100&as_brr=3 Page 410]</ref>

==Examples of pseudosciences==

==Examples of pseudosciences==