这个冬天格外寒冷,谁也不知道温暖的春天何时才会来临。在美国,如果人们想知道冬天还会持续多久,就会在2月2日这天看一只土拨鼠能不能看到自己的影子。人们为什么会认为土拨鼠能预测天气?这只土拨鼠预测得准不准呢?
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It's only been in the past 60 or so years that humans have been able to rely on television meteorologists for weather predictions. Before Al Roker, the Babylonians looked at cloud formations; in 300 BC, the Chinese had a calendar broken into 24 festivals, each with its own unique weather patterns.
直到大约60年前,人类才得以通过看电视上的天气预报来预知天气。在有美国气象播报员阿尔·洛克之前,巴比伦人是通过观看云体形成来预知天气的;在公元前300年,中国人将一年分成24个节气,每个节气都有各自独特的气候模式。
Today we use satellites and other costly equipment to gauge our environment, examining changes in the atmosphere and running sophisticated computer models. And sometimes, we just stare at a groundhog.
今天我们用人造卫星和其他昂贵的设备来监测我们的环境、气候的改变并运行精密的计算机模型。不过有时候,我们只看土拨鼠来预知天气。
Every February 2, a doughy rodent named Punxsutawney Phil briefly emerges from his winter hibernation to have a look around. If he sees his shadow, that means there will be six more weeks of winter. If he doesn't, we can assume that warm weather is looming.
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