In my opinion the 'theories' that Acme posted are not pseudo-sciences, but failed scientific theories.

They were 'established' using methodology which has since been shown to be invalid or used incomplete information/data....

Hydroplate theory

 

The hydroplate theory is a relatively new model of Earth history put forth by Dr. Walt Brown in his book In the Beginning: Compelling Evidence for Creation and the Flood. It states that before the Global flood a massive amount of water was underneath the crust. The pressure on the water caused the plates to break and separate. The escaping water then flooded the whole earth. Because these plates were broken, moved, and affected by water, (Hydro = water) these plates are considered hydroplates.[1] ...

Clearly pseudoscience.

Feng Shui is a nice example A Chinese method of arranging objects and living spaces in a certain way

Astrology is more of a belief system akin to a religion but it was important as a protoscience to the development of astronomy because ancient astrologers made detailed and accurate maps and calculations on the positions of stars and planets which astronomers were able to use in scientific studies. Like astrology, alchemy was also a protoscience that led to the development of chemistry.

Pseudoscience examples:

 

Intelligent design/creationism

 

Scientific creationism

 

Flat Earth

 

Electric Universe

 

Geocentrism

 

Concave Earth

 

Expanding Earth

Edited June 24, 201510 yr by Mad For Science

A couple of examples of pseudoscience not yet mentioned:

 

Velikovsky's "World's in Collision" theory

John Gribbon's "The Jupiter Effect"