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Offline TriangularEarth

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Distances
« on: April 26, 2017, 04:30:33 PM »
So if the earth is supposedly flat and it is a 'Azimuthal Equidistant projection', yet distances are the same as in real life, then how come a completely horizontal distance across Australia which, in real life, has a distance of 3,687km, according to the proposed map has a distance of 8,886km.

This number is 241% of the actual value. How do you explain that?  ;)
free speech pal, get used to it

Re: Distances
« Reply #1 on: April 26, 2017, 11:53:29 PM »
On another site, someone referenced some flat earth maps where the continents do appear the correct shape and size such as this one:



However, on these maps, the lines of longitude are not correct (i.e. Perth appears to be on the same line of longitude as Korea instead of Indonesia), and furthermore the documented flight times between major cities in the southern hemisphere become even more impossible as explored in more depth in another thread starting with this post: http://forum.tfes.org/index.php?topic=5888.msg113568#msg113568
« Last Edit: April 26, 2017, 11:57:50 PM by Nirmala »

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Offline TriangularEarth

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Re: Distances
« Reply #2 on: April 27, 2017, 10:12:10 AM »
Yeah , it doesn't really make any sense
free speech pal, get used to it

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Offline Pete Svarrior

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Re: Distances
« Reply #3 on: April 27, 2017, 10:53:52 AM »
according to the proposed map has a distance of 8,886km.
Where did you get that number from? It's flat-out incorrect.

This number is 241% of the actual value. How do you explain that?  ;)
We don't. The distances are identical between the models.
Read the FAQ before asking your question - chances are we already addressed it.
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If we are not speculating then we must assume

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Offline TriangularEarth

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Re: Distances
« Reply #4 on: April 27, 2017, 03:23:46 PM »
30 degrees south of the equator on the east coast of australia is the small town of red rock. If we take that point of 30 degrees south and 153 degrees and 13 minutes east. Then, if we take a point on the west coast of australia, it has the coordinates of 30 degrees south and 115 degrees east. The difference in longitude is 38 degrees and 13 minutes.

If you were to travel directly from the point in Red Rock and travel directly west until you reached our second point, you would cover a distance over land of 3,687km.

So what happens if you travel along the same 30 degrees south latitude line for 38 degrees and 13 minutes on the flat earth map?

The 30 degree south line is 13,322km away from the geographic north pole and thus if distances are the same, it is the same on the flat earth map. We know the longitudinal and thus angular separation between our two points at this latitude: 38 degrees and 13 minutes, or 38.217 degrees.

The length of an arc on a circle subtended by an angle, alpha, is:
L = a  π r /180
When we put in our numbers:
L = 38.217   π  (13,322)
                180
L = 1,599,469/180
L = 8,886km

We find that the two points on the flat earth surface 30 degrees south of the equator and separated by 38 degrees and 13 minutes are 8886km apart. This is 2.41 times greater than the real distance between the two points.

But you say that distances are the SAME as in real life. In this case, 3,687km. In that case, you must say that separation in longitude on the flat earth must be considerably smaller than in real life. Thats how geometry works. If we make L 2.41 times smaller, we must make alpha 2.41 times smaller which means on the flat earth the difference in longitude between our points would be 15.85 degrees .

But it isn't.

The distances cannot be the same. Its basic geometry.
free speech pal, get used to it

Re: Distances
« Reply #5 on: April 27, 2017, 03:26:11 PM »
according to the proposed map has a distance of 8,886km.
Where did you get that number from? It's flat-out incorrect.

This number is 241% of the actual value. How do you explain that?  ;)
We don't. The distances are identical between the models.

So, if the distances are identical between the models, then how do you explain that the flat earth maps show the distance between Sydney and Santiago to be much further than the distance on the actual flight path that is flown by commercial aircraft on that route:
https://www.metabunk.org/flat-earth-theory-debunked-by-short-flights-qf27-qf28-from-australia-to-south-america.t6483/

Can you show us a representation of the flat earth where the distances between major airports is represented as being consistent with the distances shown on a globe, and also as documented on flightaware.com? You say the distances are identical. How does that work on a flat earth? The distances do not work on any flat earth map that has been posted on this website. Is there some other geometry involved as you suggested on another thread? If so, how does it work to calculate the identical distances you claim?