Terra Firma? By Roderick on June 11, 2010 4 It looks like something from a science-fiction movie, but it isnt. (CHT Lew Rockwell.) Addendum: The above link no longer goes to the same pic, but heres the original. Science Fact
I’d like a plausible explanation for why this sinkhole appears to be close to perfectly round.
Probably the best explain for why it appears to be close to perfectly round is that it is close to perfectly round. 🙂
But as for why it is close to perfectly round, there I’ve got no clue.
Hopefully that post with the links will get approved sooner or later.