镜头展现雪花奇妙世界：完美对称独一无二(图)(4)

http://www.sina.com.cn  2009年12月21日 08:51  新浪科技晶莹剔透的雪花绝对是难得一见的美景六角形、完美对称，且独一无二雪花会突然间消失镜头展现雪花的奇妙世界

　　倘若用诗情画意的词藻来命名，雪花应该被称为“类蕨叶星树枝状晶体”(Fernlike Stellar Dendrites)，每一枝都像蕨类植物的叶子，与中心相连。它们是最大的雪晶(直径约为5毫米)，展现最美的姿态。结构更为简单的雪晶(直径最多4毫米)就像枝杈，而圣诞树装饰物往往依据这种外形布置。(孝文)

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