Look outside and see what it looks like. Really, rab, you should go outside sometimes.
I often go outside, even at night and see the stars rotating clockwise about a single point due south.
I also see a horizon that doesn't fit any flat earth that I can imagine:
I don't know how you explain the horizon of the Flat Earth, but I have seen it explained as: "The atmolayer" not being "perfectly transparent, limits the range of our vision.
So it would seem that this fading into "a blur in all directions" would make the horizon a hazy blur with the distance unable to be estimated.
But we do not see that. What we see is more like in these photos:
Sharp Horizon from near Sea Level - at Shorncliffe To me, it proves that the horizon is comparatively close.
Then quite a small change in height changes the distance to the horizon quite markedly - why if the earth is flat?
Scarborough, Horizon past Beacon | | Scarborough, Beacon on Horizon |
In these the horizon is only a few kilometers away, so we see a sharp sky-sea horizon line.
The latitude and longitude of the beacon were found from local navigational charts and this Google Earth view shows the location of that beacon as being 2.61 km from the beach (the camera has GPS to give its location).
With the
Metabunk, Earth's Curve Horizon, Bulge, Drop, and Hidden Calculator we can check if the near water distance is reasonable.
Distance = 2.61 km, View Height = 0.54 meters, Radius = 6371 km
Horizon = 2.61 km, Bulge = 0.13 meters, Drop = 0.53 meters
Hidden = None, horizon is beyond the target distance
I should point out that I was crouching at the edge of the water (not wanting to get me or the camera wet) and did not measure the camera height, but 0.5 m or so seems right.
The nearest I can estimate is that the second photo was taken from about 3 m above water level (that's the extra elevation given on Google Earth).
For this height the "Metabunk, Earth's Curve Horizon, Bulge, Drop, and Hidden Calculator" gives the horizon distance 6.18 km.
Distance = 2.61 km, View Height = 3 meters, Radius = 6371 km.
Horizon = 6.18 km, Bulge = 0.13 meters
Drop = 0.53 meters, Hidden= None, horizon is beyond the target distance
There is no easy of estimating the horizon distance from the photograph from the photograph, but it is certainly well past the beacon's known 2.61 km.
This is a long-winded way of saying that I am certain that the horizon distance is quite within a visible distance and does increase with increased viewing height.
So yes, Mom, I do look outside and actually observe my surroundings, taking photos where appropriate.
And I realise that in Florida
you don't dare go outside for fear that the alligators will get you, unless those mosquitoes have chased the alligators away, then they use you as dessert.
So how do you explain the
sharp near horizon that we see on the
real earth?