kevin_strom on Nostr: I am a former broadcast engineer. If the Earth were flat, FM radio stations in Oahu ...

I am a former broadcast engineer. If the Earth were flat, FM radio stations in Oahu could be heard clearly in Los Angeles 24/7. But they can't be heard there at all. The signals are blocked by the curvature of the Earth. Radio broadcast and communications engineering coverage calculations have to take that curvature into account in order to be accurate. The Earth is not flat.