海灘上的冰蛋?! 這是動物的蛋嗎?
兒子乍看圖片以為是冰雹，讀完文章發現不是，而是氣溫、水、風速、雪花和潮汐在剛剛好的天候條件交互作用之下在海面滾動形成的。大珠小珠落玉盤，真是教人驚艷。
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摘錄-冰蛋形成原因：
BBC Weather expert George Goodfellow said conditions needed to be cold and a bit windy for the ice balls to form.
"The general picture is that they form from pieces of larger ice sheet which then get jostled around by waves, making them rounder," he said.
"They can grow when sea water freezes on to their surfaces and this also helps to make them smoother. So the result is a ball of smooth ice which can then get deposited on to a beach, either blown there or getting left there when the tide goes out."
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BBC新聞原文來源：
'Ice eggs' cover Finland beach in rare weather event
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