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@SincereGeodesy has some problems in his video here:
At 0:19, the tabletop clearly drops away from his laser, as the red laser light can only be seen on the first few inches of the table.
At 0:19, the tabletop clearly drops away from his laser, as the red laser light can only be seen on the first few inches of the table.
Then, at 0:25 the camera is below the surface of the table, as we are looking up at the underside of each bottle cap. This defeats the purpose of his hypothesis.
Finally, @SincereGeodesy's entire premise is flawed. The bottle cap on a table is not equivalent to a boat on the water. He did not establish the "flatness" of his table. Even if he did, it does not equate to a measurement of Earth's surface.
If @SincereGeodesy sincerely wants to employ geodesy, he needs to acquire surveying equipment equal to the task and make measurements of Earth's shape. His table and bottle cap are insufficient for dealing with actual measurements made in the field.
