Yes - it means something was out there.
I would guess it was a group of talented young people with long lengths of string and poles, some wooden sheets of wood, several walkie-talkies and a few handheld global positioning satellite units. Very talented for sure, must have paid attention in geometry class and are most creative folks !
QUOTE]
I assume you knew there were no GPS, walkie-talkies and other gadgets 200 years ago to do this job. Since this is known phenomenon for over 200 years.
I guess i have to agree with spsfreak about government might keep it away from peeople so they don't panic.
Here is
details