They are faked. They’ve been on television several times. They use computer programs to map out the shape. Then on site they use ropes and such to keep the distance where they want it.
True enough and these days lasers are a cheap and very accurate means of plotting out precise patterns.
What would we do w/o TV that manages to have an answer for everything. That’s entertainment and not necessarily truth!
“Then on site they use ropes and such to keep the distance where they want it.”
Ahhh, how would they kept the ropes tight and not have the rope sag and leave evidence of the rope?
Not saying technology is not there today to do this without detection, but this has been going on for 30 years...