Truthspoon said (in RED TEXT}
Here's another example of Dubay's bullshit:
72 “October 16, 1854 the Times newspaper reported the Queen’s visit to Great Grimsby from Hull recording they were able to see the 300 foot tall dock tower from 70 miles away. On a ball-Earth 25,000 miles in circumference, factoring their 10 foot elevation above the water and the tower’s 300 foot height, at 70 miles away the dock tower should have remained an entire 2,600 feet below the horizon.”
The problem with this is that Grimsby and its dock tower is NOT 70 miles away from Hull by line of sight but only 14 miles away.
My reply in ( BLACK TEXT)
Cactus and Eric Dubay are pushing Flat Earth Bull$hit. They appear to have no knowledge of Atmospheric Physics. The perceived height of a distant tall object can be altered by atmospheric refraction due to height variations in the atmosphere's density. The resulting refraction bends light waves and causes the object to appear higher or lower depending on the temperature conditions.
1) In desert conditions the earth's surface is hot. The temperature of the air at the desert surface is hot (air less dense}. As the height increases above the surface the air gradually cools (air more dense). This change in air density causes refraction to bend the light waves producing mirages and make distant objects appear lower than they actually are. This effect is known as The Inferior Image Model.
2) In Winter condition nearer the poles eg Grimsby in late October 1854 the surface would have been cold. However the atmosphere a few miles above the surface could have been subject to the Gulf Stream moving warm air from the equator. The temperature of the air at the Grimsby land surface would have been cold (air more dense). As the height increases above the surface the air temperature would increase in the gulf stream (warmer air less dense).
This causes an opposite effect to that shown in example 1) above. This opposite change in air density causes refraction to bend the light downwards making distant objects appear higher than they actually are. This is called The Superior Image Model.
See diagrams illustrating the concept at the following link:
http://hyperphysics.phy-astr.gsu.edu/hbase/atmos/mirage.html