One correction, in the last post i wrote by mistake:
What does this mean? This means that if a heliocentric theory was right then this time of daily rate of annual revolution of the stars wouldn't be a constant (not at all), this time would be equal to the so called "apparent solar time" which is another name for REAL solar time, which vary a lot through the year.
Underlined part of the last sentence should be corrected as follows:
This means that if a heliocentric theory was right then this time of daily rate of annual rotation of the stars wouldn't be a constant (not at all), this time would be equal to the difference of the "Mean Solar time" (24 hours) and "Apparent solar time" (Real Solar time)!
As for second case:
One of the main differences between the possible Polar Night in FET and impossible Polar Night in RET is the fact that in FET the Sun is much closer to the North Pole during the northern summer, and in the same time much further away from the Ice Wall, and vice versa. In addition, in FET the Sun is of incomparable lesser dimensions. These two important facts allow Polar Nights to happen on the Flat Earth!
Why would Polar Night be impossible on the Round Earth will be easier to understand after reading this short passage:
" The nearer the Sun gets to the Pole star, the earlier it rises, the higher it reaches at noon, and the later it sets. This apparenl independent motion of the Sun, therefore, seems to account for longer and shorter days, and the whole phenomena of the seasons, but why the Sun lags as described, or why it moves northerly and southerly at alternate periods, there ii no apparent evidence. On the supposition that the world is a globe rotating against the Sun, and revolving round that luminary, it is impossible to account for what Mr. Russell calls the lagging movement of the Sun. But, on a flat surface, like the world is known to be, there is no assumption needed to account for it. As I have shown the Earth is a stretched-out structure, which diverges from the Central north in all directions toward the south. The Equator, being mid-way between the north centre and the southern circumference, divides the course of the Sun into north and south declinations. The longest circle round the world which the Sun makes, is when it has reached its greatest southern declination. Gradually going northward the circle is contracted. In about three months after the southern extremity of its path has been reached, the Sun makes a circle round the Equator. Still pursuing a northerly course as it goes round and above the world, in another three months the greatest northern declination is reached, when the Sun again begins to go towards the south. In northern latitudes when the Sun is going north, it rises earlier each day, is higher at noon, and sets later; while in southern latitudes, at the same time, the Sun, as a matter of course, rises later; reaches a lesser altitude at noon and sets earlier. In northern latitudes during the southern summer, say from September to December, the Sun rises later each day, is lower at noon, and sets earlier; while in the south he rises earlier, reaches a higher altitude at noon, and sets later each day. This movement round the Earth daily is the cause of the alternation of day and night; while his northern and southern courses produce the Seasons. When the Sun is south of the Equator it is summer in the south and winter in the north, and vice-versa. The fact of the alternation of the Seasons flatly contradicts the Newtonian delusion that the Earth revolves in an orbit round the Sun. It 'is said that summer is caused by the Earth being nearer the Sun, and winter by its being farthest from the Sun. But, if the reader will follow the argument in any text-book, he will see that according to the theory, when the Earth is nearest the Sun there must be summer in both northern and southern latitudes; and in like manner when it is farthest from the Sun it must be winter all over the Earth at the same time, because the whole of the globe-earth would be farthest from the Sun ! ! ! In short it is impossible to account for the recurrence of the Seasons on the assumption that the Earth is globular, and that it revolves in an orbit round the Sun."