你注意过跑道的方向吗? 跑道总是南北向,这之间可有什么学问?地球的自转由西向东,上午阳光从东向西直射,下午则从西向东直射。如果跑道是东西向的话,阳光会影响运动员的竞赛及裁判员的工作。而南北向的跑道可避免阳光直射的缺点。又因为阳光在南北回归线间周期变化,因此阳光在夏、冬季都有不同程度的偏北或偏南的斜射,对运动员仍有一定的影响。因此, Have you noticed the direction of the runway? The runway is always north-south, what can be learned between this? The rotation of the Earth from west to east, the morning sun light from east to west, the afternoon direct light from west to east. If the runway is east-west, the sunshine can affect the athlete’s competition and the referee’s job. The north-south runway to avoid the shortcomings of direct sunlight. Because of the cycle of sunshine in the Tropic of Cancer between the North and the South, the sunshine has different degrees of northerly or southerly diagonal in the summer and winter, which still has a certain impact on the athletes. therefore,