The Crystal Sun: Rediscovering A Lost Technology of the Ancient World;

《水晶太阳之谜与现代人失落的宇宙奥义》；

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You can see a picture of another ice-crystal light phenomenon, a sun dog.

你可以看见另一冰晶体光的现象图片，太阳狗。

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Soon the sun's warmth makes them shed crystal shells Shattering and avalanching on the snow-crust-- Such heaps of broken glass to sweep away You'd think the inner dome of heaven had fallen.

VOA: special.2010.09.17

Soon the sun's warmth makes them shed crystal shells - Shattering and avalanching on the snow crust-- Such heaps of broken glass to sweep away You'd think the inner dome of heaven had fallen.

阳光的温暖接着使那水晶的硬壳,从树枝上崩落，一齐倾泻在雪地上-,这么一大堆碎玻璃尽够你打扫,你还以为是天顶的华盖塌了下来。

耶鲁公开课 - 现代诗歌课程节选

Find this orientation by looking through the crystal at the sky at a time when you can see the sun, mark the sun's direction on the crystal, and your mark will always point towards the sun when you match the beams from even a tiny patch of blue in an otherwise overcast sky.

ECONOMIST: How Norsemen found their way round in cloudy weather

My lunch companion and I raised our glass to friendship, to France, even to hard work, and finally to the singular beauty of a crystal flute of Champagne glowing from afternoon sun that poured through the window.

BBC: Travelling solo in the world��s most romantic country

The team from France say the transparent crystal may have been used to locate the Sun even on cloudy days.

BBC: 'Viking sunstone' found in shipwreck