Proof earth isn't flat! (All you troglodytes read)

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Re: Proof earth isn't flat! (All you troglodytes read)
« Reply #120 on: September 10, 2013, 08:58:04 PM »
Very nice. 

About that building appearing a different size, is it possible it's a different building?  I'm not sure what year that picture was taken, but the other picture of Chicago from New Buffalo was taken in quite a while ago, and I noticed some newer buildings when I was doing some identification of my own.

Also, was the building elevation above the lake factored into those diagrams?  They average about 20 feet I think.  Or probably not enough to matter?

Now if jroa could post his diagram.
Thanks!

Yes they very well could be different buildings. The smaller buildings are completely guesswork for me. And yes the elevation of the buildings was taken into account. Most were 6 meters, but one was 12 I think. The full stats are on page 3, I think.

Re: Proof earth isn't flat! (All you troglodytes read)
« Reply #121 on: September 10, 2013, 11:33:16 PM »

I have a query about this picture.
Ok, as we can see, half the buildings disappear and this is attributed to the curvature of the earth, right?
Well here's my problem with this.
If that is the case, we also are told that the earth is round, so it should curve from right to left but that line looks perfectly straight, yet my real query is.
If the buildings disappear by half, over that distance, then they should also  angle away from each other, for instance, they should be slightly leaning left and right from that distance, also.

They may be spirit level straight up when your a mile away or a bit more, but not from that distance. Any reason why they are bolt upright, if the earth is a globe?

The buildings are leaning but not to the left or right. They are leaning away from you. But of course we cannot see that from a 2-dimensional picture.



And also, a lens does not have the same angle of view as your eyes. While your eyes can see horizontally with an angle of view of 180°, a zoom lens can only see a smaller portion of that. The more powerful its zoom factor, the smaller its angle of view will be. Assuming that you reach an altitude high enough to see the below curvature, your lens still cannot see the same curvature. You need to go much higher for your lens to be able to see what your eyes can see at a lower altitude.

« Last Edit: September 10, 2013, 11:49:27 PM by Cartesian »
I think, therefore I am

Re: Proof earth isn't flat! (All you troglodytes read)
« Reply #122 on: September 22, 2013, 07:06:06 PM »
So I guess it's agreed then.  Judging from the diagrams posted (no one has yet to provide a diagram showing otherwise), a slightly elevated vantage point can expose far more of an object at a far enough distance.