Today's homework: 1, the design features of the countdown to the opening ceremony of the Winter Olympics, which China cultures should be withdrawn?

Why did the 24 solar terms become a countdown timer?

At the opening ceremony of Beijing 2022 Winter Olympics, the 24 solar terms of world-class intangible cultural heritage were transformed into countdown devices for the first time. From the beginning of "Rain" to the end of "beginning of spring", the twenty-four solar terms are integrated with ancient poems, old sayings and the dynamic image of contemporary China, and they are presented to the global audience with a new expression.