Electrogravitics

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Contents 6
Electrogravitics
Illustration of a disc-shaped craft in the night sky
Illustration: a disc-shaped craft in the night sky. An artist's impression drawn for this site, not a photograph of the event.
TypeTerm
Also known aselectrogravitic
On the Timeline4 events, 1952–2014

Electrogravitics is a claimed technology for controlling gravity with high-voltage electricity, associated with American inventor Thomas Townsend Brown. The force Brown observed in his devices is now generally explained as ion wind, but the idea remains popular in UFO literature, where it is often linked to claims of secret anti-gravity aircraft.[1][2]

Thomas Townsend Brown

Illustration of official papers and files
Illustration: official papers and files. An artist's impression drawn for this site, not a photograph of the event.

In the 1920s, while still in high school, Brown experimented with X-ray tubes and noticed that a high-voltage tube seemed to change weight depending on how it was positioned, suggesting a force. In 1927 he applied for a patent on a "method of producing force or motion", and in 1929 described his "gravitator" in the magazine Science and Invention. He named Denison University physicist Paul Alfred Biefeld as a mentor, giving rise to the term "Biefeld–Brown effect", though Denison says it has no record of such experiments. Brown received several patents on the subject between 1928 and 1965.[1]

Ion wind

Illustration of lights in formation over the landscape
Illustration: lights in formation over the landscape. An artist's impression drawn for this site, not a photograph of the event.

When a high voltage is applied across two electrodes of very different sizes, the air near the small, sharp electrode is ionised and the ions are pulled toward the larger electrode, pushing neutral air along with them and producing thrust. This "ion wind" or corona discharge explains lightweight "lifters" and "ionocrafts" that rise when powered.[1][3]

Tests

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Illustration: Earth, the Moon and space. An artist's impression drawn for this site, not a photograph of the event.
  • In 1988 R. L. Talley measured no thrust from such devices in a vacuum unless an electrical breakdown occurred.[1][4]
  • A 2004 NASA contractor report examined asymmetric capacitors as a possible propulsion method.[1][5]
  • In 2004 physicist Martin Tajmar enclosed a device to exclude air currents and found no thrust, concluding that the effect was a misinterpretation of corona wind.[1]
  • In 2024 Tajmar and colleagues published a further search for any coupling between gravity and electromagnetism.[1]

In UFO lore

Illustration of a disc-shaped craft in the night sky
Illustration: a disc-shaped craft in the night sky. An artist's impression drawn for this site, not a photograph of the event.

Brown's work is frequently cited in claims that the U.S. developed secret anti-gravity propulsion. Writer Mark Pilkington has examined the history of these claims.[1][2]

On the UAP Timeline

USGS digital orthophoto of Norton Air Force Base in California
USGS digital orthophoto of Norton Air Force Base in California Photo: United States Geological Survey (USGS) · Public domain · via Wikimedia Commons

References

This page was last edited on 29 October 2026. Articles are written in our own words from the sources listed under References; disputed claims are attributed to the people who made them.

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