The report stated a device created by Sid Hurwich was apparently capable of altering the center of gravity, as well as nearby magnetic fields

[ColonelZ]

The report stated a device created by Sid Hurwich was apparently capable of altering the center of gravity, as well as nearby magnetic fields, thus interfering with mechanical, as well as electronic devices within the radius of effect to freeze—time. URL: https://cia.gov/readingroom/docs/CIA-RDP96-00792R000500240004-3.pdf

[justawhoaman]

That is because the explanation given by your physics books for “gravity” is wrong. It is electromagnetic forces that causes this effect: incoherent electrostatic acceleration.