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I’m interested in exploring the implications of a flat earth with a sun much smaller and closer to the earth than our Sun, and which moves from east to west each day. Gravity just pulls down; it’s not an attraction between masses.

How the sun gets back to the West by morning is out of scope, as is “what holds up the world”.

The technology of my setting is that of the Han dynasty, more or less, so no modern or Renaissance science is available.

Any interesting implications would be welcome. Some particular questions I have in mind:

  1. Clearly the middle/“equator” under the path of the sun is hottest and the far north and south, further from the sun, are coldest. But is there more to say about temperature than these broad strokes?
  2. What are the implications for the winds? What (if anything) are the prevailing winds without a rotating Earth? I’d expect the cold, dense air from the south to blow toward the middle (and likewise from the cold north), but there are probably also effects from the path of the sun. Maybe in the south the prevailing winds are to the northeast in the morning and northwest in the evening, following the sun?
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    $\begingroup$ science-based and Gravity just pulls down; it’s not an attraction between masses. are totally contradictory. Also, there are many flat earth questions already - what differentiates yours?# $\endgroup$
    – Trish
    Mar 19 at 21:49
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    $\begingroup$ @Trish Science based does not mean scientific fact. You can still apply things like newtonian physics and thermodynamics to answer a question where gravity functions differently. You can also make predications about the unintended consequences of how gravity works on things like tidal forces. You can also make predictions about how not having a rotating world would impact and the coriolis effect, and the climate impacts of it... in short, you can think of all the ways we can use science prove that the Earth is round, and scientifically consider what thier inverse would look like. $\endgroup$
    – Nosajimiki
    Mar 19 at 22:11
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    $\begingroup$ Also, I've glanced through the the first 20 or so flat earth questions you linked and none of them are asking about things like winds and whether patterns... so unless you see one I'm overlooking, I would say that that is what makes this a unique question. $\endgroup$
    – Nosajimiki
    Mar 19 at 22:16
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    $\begingroup$ (a) VTC:Needs More Focus. You are allowed one and only one question. (b) Please review the tour, Stack Exchange is not a discussion forum. Thus, this is the wrong place to suggest "any interesting implications would be welcome." Per the help center, questions are expected to focus on one specific and well-defined problem. (c) science-based, despite the above debate, makes this question impossible to answer. There's no such thing in Science as a flat earth. (d) Asking for something as ambiguous as "implications" is too broad, it's asking us to invent your flat earth for you. $\endgroup$
    – JBH
    Mar 20 at 3:59
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    $\begingroup$ I just want to add that one implication of a flat earth should be a bunch of people rabidly convinced that it is round.... $\endgroup$ Mar 20 at 8:21

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