How to reason with flat earthers (it may not help though)
What Would Happen if the Earth Were Actually Flat?
How Far Away Is The Horizon? | A Moment of Science - Indiana Public Media
Is the Earth flat, or a circle? | Culture Online - UCL – University College London
Ships Over The Horizon, Globe vs. Flat Earth
If Earth were flat, when would a ship disappear from sight? | New Scientist
Readers reply: if the Earth were flat, how would our lives be different? | Life and style | The Guardian
Flat Earth - Wikipedia
Fighting flat-Earth theory – Physics World
Earth's Horizon Viewed From Orbit - SpaceRef
Bottled Water: A Simple Device for Observing the Dip of the Horizon – FlatEarth.ws
To Some, the Earth Is Still Flat | WIRED
Fighting flat-Earth theory – Physics World
How to debate a flat-Earther | Space
7 ways to prove the earth is round
If Earth were flat, when would a ship disappear from sight? | New Scientist
Modern flat Earth beliefs - Wikipedia
True Horizon and Linear Perspective – FlatEarth.ws
Lucretius, the flat Earth and the malaise of modern science | Aeon Essays
Why do people believe in flat Earth? | Diggit Magazine
If the World Really is Flat, We Need a New Outlook on the Horizon | New Equipment Digest
Flat Earth Debunked... Again
You don't need to build a rocket to prove the Earth isn't flat – here's the simple science
The Earth was actually once flat, science reveals
