What makes you see double?

What makes you see double?Calcite is a mineral which forms most of a common rock called limestone. A pure form of calcite, called Iceland spar, is transparent. If you placed a piece of it on this page, you would see two images of every word. This unusual feature is called double refraction.

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Janmashtami Legends: Stories Of Krishnashtami

Janmashtami Legends & Related Stories

Janmashtami Legends: Interesting legends are related with Krishna Janmashtami celebrations. Go through the article and …