How far to that horizon over there?
February 24, 2010 6:24 AM Subscribe
Imagine I'm standing on a boat in the middle of the ocean with clear skies all around and good eyesight: how far is the surrounding horizon? And, bonus question, when I look up, how far away are the furthest clouds? (I assume it would depend on how high the clouds are but I'm still completely ignorant of how much difference that would make so any help would be great.)