What are the rationalizations of flat earth believers?

[The Grand Nudger]

I'm surprised that nobody caught the creative editing in their wiki as opposed to wiki.

-for reference....

from earlier, FES internal wiki.

At the point chosen for all the experiments the river was a slow-flowing drainage canal running in uninterrupted straight line for a six-mile stretch to the north-east of the village of Welney. The most famous of the observations, and the one that was taught in schools until photographs of the Earth from space became available, involved a set of three poles fixed at equal height above water level along this length. As the surface of the water was understood to follow any hypothetical curvature of the Earth, the observation that the three poles aligned perfectly when observed through a theodolite serves as evidence of a flat Earth.

-and now

In 1901, Henry Yule Oldham, a reader in geography at King's College, Cambridge, reproduced Wallace's results using three poles fixed at equal height above water level. When viewed through a theodolite (a precision instrument for measuring angles), the middle pole was found to be almost three feet (0.91 m) higher than the poles at each end.[10][11] This version of the experiment was taught in schools until photographs of the Earth from space became available.

https://en.wikipedia.org/wiki/Bedford_Level_experiment