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Do you know which is the world’s lowest density (lightest) solid?

In this article you will come to know about the world’s lowest density (lightest) solid.

Oct 19, 2015 11:30 IST
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Q. Do you know which is the world’s lowest density (lightest) solid?

Ans. The world's lowest density or the lightest solid material is Aerogel which is composed of about  99.98% air by volume. It is usually composed of silica or carbon compounds. It is a synthetic material that is dry, translucent, porous and solid framework of a gel. In general, aerogels are pretty fragile. Due to its appearance and ultra-lightweigth, it is also named 'frozen smoke'.

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