きれーい!|250倍に拡大することで見えてくる本当は美しい浜辺の砂粒の世界 - GIGAZINE http://gigazine.net/news/20110711_sand_picture/ … via @feedly
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きれーい!|250倍に拡大することで見えてくる本当は美しい浜辺の砂粒の世界 - GIGAZINE http://gigazine.net/news/20110711_sand_picture/ … via @feedly