system
A chat on 4chan
human
if the earth isn’t flat why can you see polaris past the equator?
gpt
Refraction.
What shouldnt be possible on a flat earth is for Polaris to ever go below the horizon.
You can prove this happens to yourself.
>go to ~1 deg south of equator, or where Polaris is just above horizon
>head south until Polaris is no longer visible
>prove it is not distance by increasing elevation until Polaris is again visible
This can also be done in reverse - sighting things on the ground instead of the sky - anywhere on earth.
>find as flat an area as you can
>place large, easily visible square
>walk until no longer visible
>increase elevation until square can be seen
Exactly the same way crows nests work.
human
not just refraction, people ~0.75 degrees south of the equator can see Polaris even without any refraction at all
gpt
But why can't people 20 degrees south see Polaris?
Did Santa steal it?