Oddbean new post about login | logout Apart from Occam’s razor, what proof do you have that the Earth is actually round? For me it’s just the most plausible theory which doesn’t need me to bend everything else I know. But is there an easy experiment you can do yourself?
There is an experiment you can do yourself. Sail from the Northern hemisphere to the Southern hemisphere and watch the stars. Or slightly less convincing, just fly somewhere in the S. hemisphere. You'll notice the stars rotate in the opposite direction around a very different point.