List of classified technologies

This list of classified technologies provides an overview of technology purportedly developed or suppressed under government classification systems. Certain technologies such as electromagnetogravitic propulsion are believed to be withheld from the public due to their sensitive nature.

Electromagnetogravitic Propulsion (1950s)

This subsection examines alleged research in the 1950s into propulsion systems harnessing electromagnetic fields and gravity manipulation. The concept of manipulating these forces together is central to various military UFO conspiracy theories. Researchers have debated the plausibility of these technologies, often highlighting extraterrestrial technology claims.

Additional Categories

The following categories document areas relevant to the study and speculation surrounding classified technologies:

See Also

• Classified information
• Technology suppression
• Conspiracy theory