Archived posting to the Leica Users Group, 2007/09/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]It is a myth that any sophisticated people believed the earth to be flat, particularly sea farers. http://www.veritas-ucsb.org/library/russell/FlatEarth.html c. BTW, your image probably shows one boat on top of a swell and the more distant in a trough. At 2 miles there is less than a yard distance between the surface of the earth and the tangent line from the observation point. The foreground boat is at a distance (so already eating part of the yard) and the more distant boats appear more than 4 feet below the surface (assuming a 30ish ft boat in the distance I'd guess it has a freeboard of ~3 ft, plus an other couple for a cabin height). On Sep 21, 2007, at 1:11 PM, Richard Taylor wrote: > ... and you can even see it on smallish bodies of water, in this > case, Buzzards Bay on Cape Cod. The boat to the left is just on > the horizon, the one on the right about a mile beyond. The horizon > in this shot is about 2 miles away. Makes you wonder why any of > the ancients thought it could possibly be flat. > > http://gallery.leica-users.org/v/rtaylor/PICKS/SAILING/ > IMGP7328.jpg.html > http://tinyurl.com/23yhhm > > Very tight crop K10D, 200 mm Pentax-M lens, ISO 400, approx. > f8.0@1/2000th. This crop is probably the equivalent of a 2000 mm > 35 mm lens. > > Comments welcome. > > Regards, > > Dick > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information