A bobbing buoy caused by waves @MathiasKp

Uploaded January 2016 | Updated September 2026, 1 week ago

An example of how waves obstruct the view to objects on the ocean

Using auto level to measure Earth surface drop on Turning Torso

Black ball with visible flat horizon and obstruction v3

Timelapse 2h, Charlottenlund to Turning Torso

$Why height matters, Turning Torso On a globe Earth with atmosphere we would expect obstruction and an amount of drop a little lower than the geometrical calculated value. In this video I show that the closer the sightline is to the water or ground the less the observations matches a globe Earth. The observation of obstruction with the sightline just over water was distorted. The auto level observation from 3.7m showed more drop than expected and from 65.5m we got an intersection just a little less than expected. That’s why height matters, much less variable refraction. #TurningTorsoFlatEarth$

How to visual with GeoGebra measure lean and obstruction on a sphere

Mrs S shows Rowbotham is wrong on obstruction on a flat surface

Ferry from Bornholmslinjen behind horizon, May 5th 2019

Ship (Norden) sailing towards the horizon

Mathias Kp |

A bobbing buoy caused by waves