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Hornbein

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The hands are connected with pivots. The height of the jewel corresponds to the height of the Sun in the sky. If it is above white then it is daylight, if above black it is night. Here the sun has height 6. There is no minute hand on this clock, rather there are the blue and red hour hands. The time shown is 6p5a, with

*a*and

*p*corresponding to am and pm.

All this is because 4D objects can rotate on two perpendicular 2D planes. The periods of rotation are independent. This was elucidated by Clifford in about 1895. If the periods are different then the Sun can do things like dip below the horizon then rise again.

The length of the hands depends on the location of the clock on the surface of the planet. This clock is closer to the "blue" plane than it is to the "red" plane so the blue hand is longer.

https://www.researchgate.net/publication/359213812_Elsewhere_Everyday_Life_On_A_Hypergeometric_Earth.