Quote (alexmourao @ Dec 16 2016 11:18am)
If we are idiots you should easily explain:
1. The existence of meteors. (Where do they come from and why do they fall to Earth if gravity is nonexistent?)
2. Why the sun and the moon don't get smaller the farther away they go.
3. Why the speed of the sun and the moon don't increase as they get closer, and decrease as they go away.
4. Why the moon doesn't appear to cycle through all of its phases every 24 hours. (Which it clearly would.)
5. The existence of auroras.
6. The Coriolis force. (This is the reason why hurricanes rotate in different directions depending on the hemisphere they're in.)
7. Why every other celestial object with enough mass in the solar system is spherical in shape. (That would be a very strange occurrence in a universe without gravity.)
8. Why stars in the southern hemisphere rotate around the southern cross. (Which is the opposite side of the sky that the north star is in.)
9. Why the moon is upside down in the southern hemisphere.
10. The existence of tectonic activity.
11. The existence of southern hemisphere great circle routes which would be impossible on a disk planet
12. Why the sun and moon rise in the east and set in the west, when they old actually rise in the northeast and set in the northwest of the planet was flat.
13. The belt of venus, which can only be caused by the earth rotating into its own shadow.
14. Solar eclipses and lunar eclipses, and why the moon can be visible during the day, but the sun can't be visible at night
15. GPS technology
16. The fact that you can literally see satellites with your naked eye, or in great detail with binoculars
17. Objects falling at the same speed at all times, no matter the density, even in a vacuum.
18. How Van Allen belts can supposedly exist without the earth's iron core maintaining them.
There's a much simpler question that utterly shuts down the flat Earth.
Why you can't see Polaris from the southern hemisphere.
The only counter they have is "BUT YOU CAN!", but they are never able to produce a picture of it....