lorddave, you are doing a deservice to the RE hoax...certainly by now you know how to find your way through the maze of any stream of photographs...

And here is the formula itself:

BD = (R + h)/{RAD[2Rh + h^2](sin s/R)(1/R) + cos s/R} - R

RAD = SQUARE ROOT OF []

R = 6378.164 km

h = AE = height of observer/photographer

s = distance at the surface, for example 34 km between England and France across the English Channel

BD = height of observable visual target on a round earth

Now, that photograph from lake Ontario PROVES NOTHING, because from 50 km distance, FOR A WORST CASE SCENARIO, FROM A HEIGHT OF 2 METERS, WE COULD SEE NOTHING UNDER 150 METERS FROM THE TORONTO SKYLINE.

Since in that photograph details were captured which are certainly well above that mark, 150 meters, no conclusion can be drawn as to the shape of the surface of the earth.

But, we have this photograph, already hotly debated, which does show the top of the roof of the Sky Dome, and that is 60 METERS BELOW THE ACCEPTED LIMIT FOR A ROUND EARTH (150 METERS):

http://www.flickr.com/photos/j-a-x/129240474/I just posted more details about the photograph taken in Burlington, Vermont at the True Believers section; in order to see the first signs of land at Montreal, ONE MUST ASCEND TO 1070 METERS.