When reading this poem, mathematician Hua raised a question: "When it snows heavily in the north, the geese return to the south early. How can you see geese flying when the moon is dark and windy? " -The landlord Gao Dahua. . appreciate
As a matter of fact, the geese returned to the south around September of the lunar calendar, "separated from In the snow by Tatar Day", and it seems that there is no contradiction between geese flying and heavy snow. Furthermore, knowing that geese fly high, the senses are not necessarily eyes, so why not? Don't you know there are geese flying high when you hear the sound of geese?
First, it is still possible to see geese when it snows in the north.
The desert in northern China is located in the plateau and belongs to the high latitude area, which may be attacked by cold current and snowfall before winter. There are poems to prove it: Bai Xuege Farewell to Wu Gui, the north wind rolls white grass, eight In the snow crosses Tatar Day, and Gao Shi's Don't Move Big, "A thousand miles, the north wind blows geese and snow." Cen Hegao were two of the most famous frontier poets in Tang Dynasty. Both of them have lived in frontier fortress for at least ten years, and they are about ten years old. Cen entered the military curtain five times and went to war twice, both of which joined the army in frontier fortress in their prime. So their poems are a true portrayal of frontier life, not the actual situation. Therefore, it is possible for Alakazam to snow in August, not to mention "the north wind blows geese even snow".
After seeing Hua's questioning poems, Mr. Guo Moruo wrote a poem to answer: "In late autumn, geese fly south, and lazy geese follow slowly." Suddenly I heard a cold current, and I chased it over and over again. "
Second, there is something wrong with this poem. Wild geese are night blind. Can they fly at night?
From the zoological point of view, geese are night-blind birds, similar to chickens and ducks. That is to say, geese, like other poultry, are also "chickens that stay in their eyes" and lose their vision in the dark. Not at night. If I feel scared when the moon is dark and windy, will I fly high? I don't know. . But is it possible that they have never found a habitat and have been flying? . .
Wild geese, like swans, need to find a wide water area to settle down before dark. If they can't find it before dark, they will fly until dawn because of night blindness. Therefore, the premise of geese not flying at night is that there are wide waters to settle down. So in the case that the northern fortress is almost a desert, can the poor geese still find a rare oasis every day? If they can't find it, they must always fly at night, so it is normal for geese to fly at night. Of course, you can't see the goose in the dark, but you can know the "sound of the goose crossing the river" only by the sound.
The above discussion is about the migration time and night blindness habits of wild geese, but literary works should always be considered from a literary point of view: the wild geese that can still be seen in winter should be lonely geese and wounded geese. In the first sentence, it is a metaphor for Khan's defeat and his escape alone. I think this explanation is very reliable. . . After all, it is a literary work, and Mr. Lu's imagination should be allowed to play ~ ~ ~