Description

Masses rotating induce angular momentum of the fabric of spacetime at the center of rotation. I posted this because it was weirdly similar to the airliner video: revolving UFOs are rather cliche in sci-fi, but there might be a very good reason why this might actually be a thing. Could enough stress in the fabric create what we saw in the video?

Also, if you're interested in General Relativity this channel has extremely cool visualizations.