Friday, December 3, 2010
瑞典出现罕见的幻日现象
瑞典斯德哥尔摩,梅拉伦湖上空出现幻日现象(Sun Dogs)。幻日现象是一种罕见的光晕现象,日光在大气层中的冰微粒上发生反射、折射和衍射就可能产生幻日。
在半透明薄云里面,有许多飘浮在空中的六角形柱状的冰晶体,偶尔它们会整整齐齐地垂直排列在空中。当太阳光射在这一根根六角形冰柱上,就会发生非常规律的折射现象。
No comments:
Post a Comment
Newer Post
Older Post
Home
Subscribe to:
Post Comments (Atom)
本月推荐
Horizontal Ads 1
Featured Content 4
125x125 Ads
Featured Video
Featured Content Glider
Featured Content Scroller
Share Video
This
Flash Player
was created @
FlashWidgetz
.com.
myspace music player
myspace music
myspace music
Featured Content 1
Search Box
No comments:
Post a Comment