据说由于在春天的第一天，太阳位于地球两极的中央，由于特殊的重力作用，鸡蛋很容易被竖着放置。
It is said that due to the sun's equidistant position between the poles of the earth on the first day of the spring, special gravitational forces apply.
第十五个世纪欧洲知道，那天空由闭合的同心水晶球形做成，转动在中央地球附近和运载星和行星。
Fifteenth century Europeans' knew ', that the sky was made of closed concentric crystal spheres, rotating around a central earth and carrying the stars and planets.
乞力马扎罗山便是在地球的中央（在赤道上）；
Mt. Kilimanjaro is at the middle of the earth (on the equator);
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