A maximum in the curve of 59 meters at the midpoint of 25kms represents a grade of less than 1%, can you honestly say you are capable of discerning that in a 2-dimensional photo?
rama set, please come to your senses.
Are you really that desperate to actually compare distance to curvature?
You have to compare curvature with the altitude of the observer, or some visual target.
TORONTO - BEAMER FALLS CONSERVATION AREA
(http://i113.photobucket.com/albums/n206/dharanis1/grim_zpsdba06ede.jpg)
https://www.flickr.com/photos/chris_baird/14067034302 (https://www.flickr.com/photos/chris_baird/14067034302)
Taken from a viewing stand at Beamer Memorial Conservation Area, Grimsby
DISTANCE 55 KM ; CURVATURE OF 59 METERS
Beamer's Falls #071114
River Forty Mile Creek
Class Ramp
Size Medium
Height: 45
Crest: 20
The Niagara Peninsula Conservation Authority acquired Beamer Memorial Conservation Area in 1964, to protect and preserve the Niagara Escarpment and the Forty-Mile Creek valley system. The site is home to a variety of Carolinian plants and wildlife.
http://www.gowaterfalling.com/waterfalls/beamer.shtml (http://www.gowaterfalling.com/waterfalls/beamer.shtml)
Therefore, from 45 meters in altitude, we should see a huge 59 meter curvature right in front of us, and a visual obstacle of some 65 meters.
NO CURVATURE WHATSOEVER OVER A DISTANCE OF 55 KM.
Here is the other photograph from Beamer Falls:
(http://farm1.static.flickr.com/29/53037827_fdb83b96bd_b.jpg)
http://www.flickr.com/photos/suckamc/53037827/# (http://www.flickr.com/photos/suckamc/53037827/#)
Again, no curvature whatsoever across a distance of 55 km, no 59 m midpoint visual obstacle.
Since the photographer does specify Beamer Falls, and the highest point in the conservation area is 110 meters, we can see again that there is no ascending slope, no midpoint 59 meter curvature, no descending slope, we can see Toronto in its entirety.
Ms. Kerry Ann Lecky-Hepburn took these photographs some years ago: the RE called her, and were told they were taken at an altitude of 170 m in Grimsby.
(http://i113.photobucket.com/albums/n206/dharanis1/TorontoDay_zpsca4ccfc6.jpg)
No ascending slope, no midpoint visual obstacle of 59 meters, no curvature whatsoever.
From the very same spot, Ms. Lecky-Hepburn used a reflector telescope for this zoom:
(http://i113.photobucket.com/albums/n206/dharanis1/thor2h_zpsc4f7927e.jpg)
No curvature whatsoever across a distance of 55 km. We can see ALL THE DETAILS FROM TORONTO WITH NO OBSTRUCTION FROM A MIDPOINT CURVATURE OF 59 METERS, no descending slope.
Another photograph signed Mrs. Lecky-Hepburn:
(http://i113.photobucket.com/albums/n206/dharanis1/lakeontario53_zps743773f9.jpg)
http://www.flickr.com/photos/planetrick/487755017/# (http://www.flickr.com/photos/planetrick/487755017/#)
http://www.flickr.com/photos/planetrick/487726854/#in/photostream (http://www.flickr.com/photos/planetrick/487726854/#in/photostream)
No curvature whatsoever, from Hamilton to Lakeshore West Blvd: no visual obstacle, just a perfectly flat surface of the water all the way to the other shoreline.
(http://farm1.staticflickr.com/198/487755017_a114c05e50.jpg)
(http://farm1.staticflickr.com/232/487726854_181aa457da.jpg)
CAPTION: TAKEN RIGHT ON THE BEACH - DISTANCE OVER 65 KM
VISUAL OBSTACLE: OVER 200 METERS
(http://farm1.static.flickr.com/117/312939439_ef682e2d8a_o.jpg)
http://www.flickr.com/photos/tundrabluephotography/312939439/# (http://www.flickr.com/photos/tundrabluephotography/312939439/#)
No 59 meter curvature whatsoever, a perfectly flat surface of the water.
Taken on the Niagara escarpment: at most 170 meters in altitude just like in the other photographs signed Lecky Hepburn.
Let us go to lake Michigan now.
Grand Haven Daily Tribune April 3, 1925
COAST GUARDS SEE MILWAUKEE LIGHTS GLEAM
Captain Wm. J. Preston and Crew See Lights of Milwaukee
and Racine Clearly From Surf Boat
ANSWER TO FLARE
Crew Runs Into Lake in Search For Flashing Torch
Grand Haven Daily Tribune April 3, 1925
Captain Wm. J. Preston and his U. S. Coast Guard crew at Grand Haven harbor witnessed a strange natural phenomenon last night, when they saw clearly the lights of both Milwaukee and Racine, shining across the lake. As far as known this is the first time that such a freak condition has prevailed here.
The phenomena was first noticed at shortly after seven o’clock last night, when the lookout called the keeper’s attention to what seemed to be a light flaring out on the lake. Captain Preston examined the light, and was of the impression that some ship out in the lake was “torching” for assistance.
Launch Power Boat
He ordered the big power boat launched and with the crew started on a cruise into the lake to locate, if possible, the cause of the light. The power boat was headed due west and after running a distance of six or seven miles the light became clearer, but seemed to be but little nearer. The crew kept on going, however, and at a distance of about ten and twelve miles out, a beautiful panorama of light unfolded before the eyes of the coast guards.
Captain Preston decided that the flare came from the government lighthouse at Windy Point at Racine. Being familiar with the Racine lights the keeper was able to identify several of the short lights at Racine, Wis.
Saw Milwaukee Also
A little further north another set of lights were plainly visible. Captain Preston knowing the Milwaukee lights well, easily distinguished them and identified them as the Milwaukee lights. The lights along Juneau Park water front, the illumination of the buildings near the park and the Northwestern Railway station were clearly visible from the Coast Guard boat. So clearly did the lights stand out that it seemed as though the boat was within a few miles of Milwaukee harbor.
Convinced that the phenomenon was a mirage, or a condition due to some peculiarity of the atmosphere, the keeper ordered the boat back to the station. The lights remained visible for the greater part of the run, and the flare of the Windy Point light house could be seen after the crew reached the station here.
DISTANCE GRAND HAVEN TO MILWAUKEE: OVER 80 MILES (128 KM).
http://www.coastwatch.msu.edu/images/twomichigans2a.gif (http://www.coastwatch.msu.edu/images/twomichigans2a.gif)
Windy Point Lighthouse:
http://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Wind_Point_Lighthouse_071104_edit2.jpg/800px-Wind_Point_Lighthouse_071104_edit2.jpg (http://upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Wind_Point_Lighthouse_071104_edit2.jpg/800px-Wind_Point_Lighthouse_071104_edit2.jpg)
The lighthouse stands 108 feet (33 m) tall
THE CURVATURE FOR 128 KM IS 321 METERS.
Using the well known formula for the visual obstacle, let us calculate its value:
h = 3 meters BD = 1163 METERS
h = 5 meters BD = 1129 METERS
h = 10 meters BD = 1068 METERS
h = 20 meters BD = 984 METERS
h = 50 meters BD = 827.6 METERS
h = 100 meters BD = 667.6 METERS
No terrestrial refraction formula/looming formula can account for this extraordinary proof that the surface across lake Michigan is flat.
Moreover, as we have seen, the light from Windy Point was continuously observed, during the approach, and during the return to the station:
The power boat was headed due west and after running a distance of six or seven miles the light became clearer, but seemed to be but little nearer. The crew kept on going, however, and at a distance of about ten and twelve miles out, a beautiful panorama of light unfolded before the eyes of the coast guards.
The keeper ordered the boat back to the station. The lights remained visible for the greater part of the run, and the flare of the Windy Point light house could be seen after the crew reached the station here.
More information on lake Michigan here:
http://theflatearthsociety.org/forum/index.php?topic=30499.msg1591587#msg1591587 (http://theflatearthsociety.org/forum/index.php?topic=30499.msg1591587#msg1591587)