FiveRedPears, "Flat Earth Debunked: proof that the Earth is a spheroid / a sphere / a globe / round", FiveRedPears YouTube Channel (24 July 2015)
I mentioned FiveRedPears in conversation with The Nephilim Boys, so I thought I'd share one of his videos. As I said, he's a Scotsman (at least his accent suggests so) and he comes over as competent in geometry. Anyway, I'd like to see a flat-earth theorist deal with this...
Flat Earth Debunked
Image: "Orlando-Ferguson-flat-earth-map edit.jpg" by Orlando Ferguson [Public domain], via Wikimedia Commons