Dear Flat Earthers,
Let me introduce myself. I am Geodetective, and you can find my info on geodetective.wordpress.com. I am a YEC, so I know what it feels like to be exposed to ad hominem argumentations and irrelevant arguments. However, I do like good debates with good arguments.
When it comes to the flat earth theory, I am rather convinced it is false. And I'm actually surprised that there are still people who think the earth is flat. But I'm interested in what you are thinking. Actually, some people use this argument against me, in the sense: "If you believe the bible that way, you probably believe the earth is flat." But I don't, because I see not any reason to believe the earth is flat based on the bible.
I'm also quite surprised by a lot of arguments I've found on this website, because I think they are verifiably wrong.
But anyway, I'd like real science, where arguments are verifiable. Let's just focus on one argument. In this case I think I can give you a verifiable argument against FE. It all has to do with simple triangles.
Let me list 12 locations on earth:
1) Praia (Cape Verde)
2) Cape Town (South Africa)
3) Kuwait
4) Qeqertat (greenland)
5) Belize city
6) Mar del Plata (Argentina)
7) Pekoa Airport, (Vanuatu)

Cocos (Keeling) island. (Indian ocean)
9) Dandong (China)
10) Honolulu (Hawaii)
11) Adamstown (pitcairn islands) (pacific ocean)
12) Concordia station (antarctica)
Except for point 12, all these locations have an airport. People have traveled from and to these points all the time...
it is possible to travel from any of these places to any other. But I am interested in only some of the travel routes. For example, route 1-2 is the route from Praia (Cape Verde) to Cape Town (South Africa). You can calculate the travel distance using this site:
http://www.worldatlas.com/travelaids/flight_distance.htmAnd shortest distance is 6865 km.
Route 2-3 (From Cape Town (South Africa) to Kuwait) is 7544 km.
Route 1-3 (From Praia (Cape Verde) to Kuwait) is 7391 km.
These together, forms a triangle, which I call triangle 1-2-3.
Using this method, one can make 20 triangles from the points I gave. Let's make 4 groups of triangles:
A) 1-2-3, 1-3-4, 1-4-5, 1-5-6, 1-6-2
B) 7-8-9, 7-9-10, 7-10-11, 7-11-12, 7-12-8
C) 2-3-8, 3-8-9, 3-4-9, 4-9-10, 4-5-10
D) 5-10-11, 5-6-11, 6-11-12, 2-6-12, 2-8-12.
Ok, that may look confusing. And since Antarctica is involved in there (which seems heavilly debated on this site), let's just focus on group A, which does not contain Antarctica.
For these 5 triangles we need to find out the distance for 10 routes. (We already had 3 of these):
1-2: 6856 km
1-3: 7391 km
1-4: 7420 km
1-5: 6940 km
1-6: 6783 km
2-3: 7544 km
3-4: 7441 km
4-5: 6785 km
5-6: 6917 km
2-6: 6704 km
Now I'd like to ask you to make a scale model of the first 5 triangles. Take 5 pieces of paper, and draw one of these triangles on each of these pieces of paper. Scale it so that 1000 km is 1 cm.
Also, mark corner 1 on it (with a red pen or something). All the first 5 triangles have corner 1 on them somewhere.
Take some scissors, and cut these 5 triangles out of the paper.
Next, get some tape.
Now lay the first two triangles (1-2-3 and 1-3-4) next to each other, so that the edges 1-3 are touching each other. Tape them together.
Continue doing this with the other five triangles. So next triangle (1-4-5) should have it's side 1-4 attached to the second triangle.
When you are done doing this, you have 5 triangles taped together into one shape.
If you like, you can continue doing this with the other 15 triangles, but that is not even nessecary.
I wonder, what do you see? And what is your conclusion?