The primary reason for both of those phenomena is not the shape of the earth, but the density gradient in our air.
I recommend watching, or better yet - doing, some demonstrations on light/lasers into density gradients to understand better the path the light takes from the distant sources (as well as why it stops reaching you, and where it goes).
We were miseducated.
The primary reason for both of those phenomena is not the shape of the earth, but the density gradient in our air.
I recommend watching, or better yet - doing, some demonstrations on light/lasers into density gradients to understand better the path the light takes from the distant sources (as well as why it stops reaching you, and where it goes).