So how do you explain that the higher up you are (mast, tower, mountain) the further you can see? And how do you explain that when a ship disappears behind (!) the horizon the last thing you see is just the top of the mast? Just wondering how people like you explain the fact that the light travels along a liniar line (unless it passes and extrem mass and space-time curves the light, but if you wish to use Einstein's general theory of relativity (do you?) then you would see the entire boat, even around the horizon. And how do you explain that various wave-lengths travel differently around the world and how come that with short wave radio (SSB) you can sometimes hear it very clearly and sometimes you are behind the bouncing points around the globe? And how do you explain that the sunlight shines vertically into a deep well or gives no shadow only once a day if your Latitude and the sun's declination is the same? How do you use the sextant for navigation, if the world had been flat? All the above is easy to explain and mathematically easily provable. But maybe, you don't believe in Maths as well?
@@reginasailingFor your first question, why does the ship disappear bottom up. Ans is.. You are assuming this is possible only on curved surfaces. That's not true. That we observe on a flat surface too. Yes. But you haven't done that experiment on flat surface. ( Control of the hypothesis). because nobody told you before to do that observational experiment. But you must have done that. To say that phenomenon only possible on curve surface. As per our experiment, this phenomenon happen in both flat and curve surface. As a teacher of celestial navigation, you know, Earth measured flat. For elevation angels, the base line is flat. So called equatorial plane is nothing but flat Earth. There is no rational horizon, sensible horizon. We only have physical observable horizon. And the line from observer to horizon is straight. Flat.
Earth is flat
So how do you explain that the higher up you are (mast, tower, mountain) the further you can see? And how do you explain that when a ship disappears behind (!) the horizon the last thing you see is just the top of the mast? Just wondering how people like you explain the fact that the light travels along a liniar line (unless it passes and extrem mass and space-time curves the light, but if you wish to use Einstein's general theory of relativity (do you?) then you would see the entire boat, even around the horizon. And how do you explain that various wave-lengths travel differently around the world and how come that with short wave radio (SSB) you can sometimes hear it very clearly and sometimes you are behind the bouncing points around the globe? And how do you explain that the sunlight shines vertically into a deep well or gives no shadow only once a day if your Latitude and the sun's declination is the same? How do you use the sextant for navigation, if the world had been flat? All the above is easy to explain and mathematically easily provable. But maybe, you don't believe in Maths as well?
@@reginasailingFor your first question, why does the ship disappear bottom up.
Ans is.. You are assuming this is possible only on curved surfaces. That's not true. That we observe on a flat surface too. Yes. But you haven't done that experiment on flat surface. ( Control of the hypothesis). because nobody told you before to do that observational experiment. But you must have done that. To say that phenomenon only possible on curve surface.
As per our experiment, this phenomenon happen in both flat and curve surface.
As a teacher of celestial navigation, you know, Earth measured flat. For elevation angels, the base line is flat. So called equatorial plane is nothing but flat Earth. There is no rational horizon, sensible horizon. We only have physical observable horizon. And the line from observer to horizon is straight. Flat.