Wavy altocumulus clouds like fluffy cotton balls spreading out in the sky 高積雲像棉絮鋪在天空
(中文在下半部分 Translation function available at the side bar) altocumulus clouds in Hong Kong sky 香港的高積雲 Clouds like fluffy cotton balls In the afternoon of 11 Dec 2018, I witnessed an unforgettable scenery. Clouds, which were like fluffy cotton balls, were widely spread in wavy patterns across the sky in many areas. Why are people commonly attracted to this kind of natural phenomenon? Maybe, human beings share impressions and feelings in common, e.g. white clouds in a blue sky, clouds with interesting patterns, etc. Actually, abundant sunlight also plays a significant role. The functions of sunlight are not just giving warmth, photosynthesis, and giving colors to this world. Sunlight in fact affects human beings both physically and psychologically, e.g. to regulate the biological clock in our brain and to make us feel happy and activated. A researcher has even pointed out that outdoor sunlight could delay our aging process! How amazing is sunlight, with so many functi...
