研究人員揭開過冷水奇特行為背後的謎團
Researchers uncover the mystery behind supercooled water's strange behavior
水是一種常見的物質，但它隱藏著一個祕密。
Water is a familiar substance, but it hides a secret.
通常，水在0°C時會結冰，但如果足夠純淨，它可以保持液體狀態遠低於冰點，這種狀態稱為「過冷」。
Normally, water turns to ice at 0°C, but if it is pure enough, it can remain liquid well below freezing—a state called 'supercooling.'
科學家長期以來一直難以研究這一點，特別是在-40°C至-90°C之間被稱為「無人之境」(ㄨˊㄖㄣˊㄓㄐㄧㄥˋ)的溫度範圍內。
Scientists have long struggled to study this, especially in a temperature range called 'no man's land' between -40°C and -90°C.
幾十年來，專家們懷疑過冷水實際上是兩種不同結構形式的混合物：高密度液體和低密度液體。
For decades, experts suspected that supercooled water is actually a mixture of two distinct structural forms: a high-density liquid and a low-density liquid.
研究人員在大約-63°C處確定了一個「臨界點」，在這點上這兩個相會相互作用，解釋了為什麼水的表現與其他物質如此不同。
Researchers identified a 'critical point' at roughly -63°C, where these two phases interact, explaining why water behaves so differently from other substances.
這一發現至關重要，因為水獨特的性質，例如結冰時的膨脹，對於生命至關重要。
This discovery is vital, as water’s unique properties, such as its expansion upon freezing, are essential for life.
通過解決這個謎題，科學家們可以更好地理解從氣候模式到蛋白質如何在我們細胞內運作的一切事物。
By solving this mystery, scientists can better understand everything from climate patterns to how proteins function within our cells.
水似乎比我們想像的還要複雜和迷人。
Water, it seems, is even more complex and fascinating than we ever imagined.
