I talked with a couple Optics Manufacturing Specialist today about the photos of Earth taken from the alleged ISS. Both were happy to help with my concerns, and both found that what I had to say and questions interesting. One in particular said, “Iv’ not seen that before, I have Google ready”, after I said NASA’s has pictures of Earth without any curve. He found the pictures and was speechless for a few moments. I asked, how can a curved surface display such a straight horizon in a picture? He was still speechless. I asked again, and he said “it can’t.”
I also learned that only a horizontal line will bow (distortion) perfectly to a concave shape or convex shape. But a curved line cannot distort to a straight line or convex to a perfect round line, but will become compressed and warp.
And more lies from Plat.
It is quite easy for a round horizon to appear straight.
One simple option is to only focus on a small portion of the horizon, then with such a small curve it will appear straight.
Another is with a fish eye lens which curves the horizon in the opposite direction.
If you wish to claim it is impossible, then provide valid references or the math/simulation to support that claim.
But again, I will skip that and just post the refutation even more firmly.
This is a simulation from POV-Ray, of a round Earth, with a wide angle lens:
Notice how before the model of Earth crosses the centre of the FOV it appears straight? Then as it exits with all of Earth above the centre of the FOV it again appears straight?
So I think I will stick with reality with a RE potentially appearing straight due to lens distortion.
Also note that this makes a video much better than a still image.
With a video you can analyse how the horizon appears in various positions relative to the centre of the FOV.
Assuming there is significant lens distortion which results in the horizon sometimes appearing curved, then:
for a hypothetical straight horizon the horizon would only appear straight when it is passing through the centre of the FOV. When the horizon is away from the centre of FOV it will appear curved;
for a round horizon (from the real round Earth), it will appear curved when passing through the centre of the FOV. If the Earth side of the horizon is closer to the centre of the FOV than the non-Earth side, then the curve will appear exaggerated. If the Earth side of the horizon is further from the centre of the FOV than the non-Earth side, then the curve will appear diminished, with one point resulting in a straight line and beyond that it will be inverted.
Also, if you bother looking closely enough, the picture you provided actually has a slight curve to the horizon, and as a reminder, the horizon shouldn't exist on a flat Earth.
In photography, distortion is generally referred to an optical aberration that deforms and bends physically straight lines and makes them appear curvy in images
Are you really planning on taking the full-stupid option of claiming only perfectly straight lines will be distorted and non-straight lines will magically not get distorted?
Picture A - There are no pictures of ISS flying over the surface of this Earth.
So are you saying it is a fake picture and not of the real Earth, because there are plenty of pictures of the ISS flying over the very real Earth we live on.
Which picture is best to use for selling the idea Earth is a sphere? A or B?
I prefer the pictures from EPIC.
It is clear NASA fakes pictures into a sphere and you defend the lies. Shame on you!
No, it is clear you are yet again lying about NASA so you can pretend that Earth is flat.
You are yet to provide a single reason to think NASA is lying or that Earth isn't round.
This is the curvature at 70,000'. Now add 250 miles.
For how much of the horizon? Notice that key part you left out?
Here is another image of the curvature at 70 000 archaic units (assuming yours was correct):
Doesn't really look like much does it?
Also, if you are using Pythagoras like that, you are doing it wrong. That is for a great circle, which is only going to be visible from infinitely far away.
At other times, the horizon will be hiding that great circle.
You need to use much more complex math which is based upon the camera's FOV and the position of the object.
Next……
So you abandon yet another nonsense claim and flee to another.
Surly after so many years maintenance needs to be done to keep earths spin smooth, right?
Why should it?
Are you again referring to mechanical devices like those that use bearings?
Earth doesn't have bearings which wear out and need lubrication or maintenance.