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Normally, researchers observe snow crystals at moderate levels of magnification (30X-500X). The electron microscope, however, allows for observation at over 100,000X.
The festival in the city of Sapporo on Japan's northern island of Hokkaido, the Sapporo Snow Festival has been taking place since the early '80s and attracting millions of visitors.
via Beautiful Decay http://5thin.gs/1d0ljse