In some parts of China, you may notice a strange sight: a stone carefully placed over a watermelon. This isn’t to prevent it from rolling over or to protect it from prying hands, but rather for a deeper secret related to its sweetness. During the day, the stone absorbs the sun’s heat, protecting the watermelon from its scorching heat. As night falls, the stone gradually releases that heat, creating a thermal contrast that stimulates the fruit’s ripening process, making it sweeter. It’s a simple agricultural trick, but it carries a profound understanding of nature and its effects on crops.

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In some parts of China, you may notice a strange sight: a stone carefully placed over a watermelon. This isn’t to prevent it from rolling over or to protect it from prying hands, but rather for a deeper secret related to its sweetness. During the day, the stone absorbs the sun’s heat, protecting the watermelon from its scorching heat. As night falls, the stone gradually releases that heat, creating a thermal contrast that stimulates the fruit’s ripening process, making it sweeter. It’s a simple agricultural trick, but it carries a profound understanding of nature and its effects on crops. Read More