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Folklore
Philadelphia ExperimentAtlas
Science & Technology · Suppressed energy & physics
Folklore accounts of a WWII Navy invisibility or teleportation experiment at Philadelphia versus naval-history treatments of the story as undocumented storytelling.
Open the caseDegaussing2
- Official · Naval commentary has identified wartime degaussing work, which reduced a ship’s magnetic detectability to mines, as a plausible real-world source for later “invisibility” storytelling.
- Documented · Wartime degaussing research to reduce ship magnetic signatures was a real naval technology effort.
Carl Meredith Allen1
- Documented · Carl Meredith Allen, also known in correspondence as Carlos Miguel Allende, is widely cited as an early promoter of the Philadelphia Experiment story through letters.
Fourth Naval District1
- Official · Personnel associated with the Fourth Naval District have described questions about the Philadelphia Experiment as arising from routine wartime research at the Philadelphia Naval Shipyard rather than from a documented invisibility trial.
Morris K. Jessup1
- Documented · Astronomer and author Morris K. Jessup is frequently linked to the story’s early circulation after receiving correspondence about a supposed Navy experiment.
Norfolk, Virginia1
- Contested · Some versions of the legend assert that the ship briefly appeared at or near Norfolk, Virginia, as part of an alleged teleportation effect.
USS Eldridge1
- Documented · Folklore versions of the Philadelphia Experiment commonly name the destroyer escort USS Eldridge as the vessel involved.
Other6
- Documented · A 1980s commercial feature film titled The Philadelphia Experiment dramatized and further popularized the legend for general audiences.
- Documented · Many tellings claim the alleged invisibility or teleportation trial occurred at the Philadelphia Naval Shipyard during World War II.
- Documented · Published naval-history and military-press treatments generally frame the episode as an urban legend or unsupported conspiracy narrative rather than as a verified operation.
- Documented · The legend circulated widely through mid- and late-twentieth-century books and films.
- Documented · The Philadelphia Experiment story claims a WWII destroyer escort became invisible or teleported.
- Documented · U.S. naval historical offices publicly describe the story as unsupported by records.