内蒙极寒有多冷?鸡蛋碰石头安然无恙
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央视网消息:冬季在内蒙古的额尔古纳和根河,气温最低时低于零下50℃,那可是咱们难以想象的冷,滴水成冰已经不足以形容它,因为那里开水也能瞬间结冰。
极寒天气有多冷?有人说,在极寒天气条件下,可以洒水成冰。就是把热水抛洒出去,部分水汽在抛洒出去的瞬间,可以遇冷成冰。记住,一定是热水,冷水抛洒出去的瞬间是成不了冰的。
当地人说,把热水抛洒成冰在这里不足为奇,低温能把空气中的水分直接冻成冰,您见过吗?额尔古纳市目前的温度是零下36℃,我们可以看见,整个城区都已经被一片雾海所笼罩。一些建筑在雾海中若隐若现。
气象部门介绍,每当零下40℃左右的时候,空气中的水分会直接凝华成冰晶,所以这种雾也叫作冰晶雾,当地人把这种情况叫冻冒烟了。在零下30℃的低温中,这面旗子多长时间能结冰?从拿开水面到现在已经过去了15秒,大家可以看到,它已经不像之前那样自然垂下,而是僵硬地立在那儿。
低温下,吹泡泡也多了一种玩法
鸡蛋碰石头,不自量力,那么冰冻状态下的鸡蛋呢,我们来做个试验。这个鸡蛋只是外壳有点破损。鸡蛋在户外零下40℃的低温中放置了两个小时,就变得如此坚硬。
冬季常温冷过冰箱,在额尔古纳,商家把柿子、梨、苹果、海鲜直接放置在露天中,速冻效果好,省电还环保。
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