I wrote this comment on YouTube:
Your video model of the flat earth cannot adequately explain lunar or solar eclipses. There are also issues with the sun's size and movement from sunrise to sunset, as well as seasonal changes, in the flat earth model. While I will not toss the flat earth model outright, I am not convinced of it, either. There are too many uncertainties.
A relatively easy experiment is with the use of a weather type balloon, a camera, a cheap GPS tracker and a few more bits to round up a makeshift "space" camera. One can buy kits online for this experiment.
One thing I will not accept, however, is the notion that the moon gives off its own light, which is a notion also promoted by quite a few of those who espouse the flat earth model.
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There are issues everywhere you look.
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Take the moon, for example. Every day the moon shows us by its appearance in the sky that the earth is spherical. But flat-earthers refuse to recognize what the moon has to offer as evidence.
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When the moon rises in the east during a full moon phase like we just had this week, the sun is setting in the west, or has just set. As the moon moves upward to astronomical high noon in the sky, it faces us on earth with its entirely illuminated aspect, telling us that the sun is to be found directly opposite the moon on the opposite side of the earth. This direction puts the sun below our feet, not sneaking around and ABOVE the northern horizon as the flat-earthers would have it do.
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As often as they have the opportunity to discuss the fact that at each quarter moon the angle between the sun and moon is less than one-half a degree less than 90 degrees, flat-earthers run away scared or else hurl nonsense epithets in the general direction of anyone who has considered the implications and direct consequences of this consistent marvel.
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And take the reality of total solar eclipses. This phenomenon is so blatant and obvious that all the flat-earthers can say about it is they have no idea what causes them. Oh, so they are PREDICTABLE and HAPPEN AS PREDICTED and have been doing so for hundreds of years -- Christopher Columbus had a chart that showed when an eclipse would occur and used that to convince the ignorant natives of the islands that he knew something they didn't.
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Flat-earthism cannot predict eclipses, therefore Columbus and his charts were not according to flat-earthism.
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It is a very simple matter to check the distance from earth to moon and earth to sun, and these observations alone prove that the earth is not flat, for the same dimensions are observable from the north pole to the south pole every day of the year.
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The moon's phases are the same to any observer whether he is in northern Alaska or Tierra del Fuego, from Africa to Hawaii and from Australia to Greenland. A quarter moon is a quarter moon from every place on earth all day long, which would be impossible if the moon were only a few thousand miles above the surface of the earth.
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There is utterly no evidence whatsoever to support flat-earthism.
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