I can’t believe I have to write something about this, I really can’t. Some idiot on Usenet is now spouting flat-earther nonsense, so therefore I feel compelled to dispel this nonsense, one way or the other. The Earth is NOT Flat. If the Earth were flat, we’d be able to see across the horizon, far beyond ten miles, theoretically we’d be able to see everything on earth depending on the scale of the objects in question, but we can’t. It should go without saying (“should” doesn’t necessarily correlate with “would,” as I have unfortunately learned over the years) that the reason this is is because the curvature of the earth prevents you from seeing anything beyond ~10 miles in either direction.
The curvature of the earth is why, if one observes a boat on the horizon, the sail would seem to disappear before the actual ship would. The curvature of the earth is why we have time zones, because we derive our time from the sun, and the sun’s rays don’t hit earth all at the same time, one side of the earth is in night, the other is bathing in daylight, and this is true no matter what time of the year it is.
The curvature of the earth is why the Antarctic and Arctic circles possess at least a day of complete darkness and complete daylight, and the amount of time spent in either complete darkness or complete daylight depends on how distant one is from the poles, wherein “night” is six months long, and the period where sunlight bathes the poles is also six months long.
The fact that people still believe this crap is astonishing, it’s not that hard to figure out. If you’re a flat earther, then you should be ashamed of yourself for being so willfully stupid. It’s mind-boggling, it really is.