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购买楼房时,许多人想选择一年四季都能晒到太阳的最低楼层,那么这个最低楼层是几楼呢?本文运用三角函数知识解答这个问题.首先,我们必须搞清最小射角和纬度的关系.我们把某地正午时,太阳光线与水平面所成的角叫射角.射角是随季节变化的,夏天射角大,冬天射角小,冬至是太阳光线直射南回归线(南纬23°26′)的日子,这天的射角是一年中最小的,称为最小射角.当冬至这天的楼层能晒到太阳时,就能保证一年四季都能晒到太阳.最小射角是由各地的纬度决定的.如
When buying a building, many people want to choose the lowest floor that can be sunned to the sun throughout the year. So is this floor the lowest floor? This article uses trigonometric knowledge to answer this question. First, we must find out the minimum angle and latitude. Relationship. We put the angle between the sun’s rays and the horizontal plane at noon. The angle is called the angle. The angle varies with the seasons. The summer angle is large, the winter angle is small, and the winter solstice is the sun’s rays. On the day of °26’), the shooting angle of this day is the smallest of the year, which is called the minimum shooting angle. When the floor of the winter solstice can reach the sun, it can ensure that it can reach the sun throughout the year. The shooting angle is determined by the latitude of each place.