nanodiamonds

In mineralogy, diamond (from the ancient Greek Î±Î´Î¬Î¼Î±Ï â adÃ¡mas "unbreakable") is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond to graphite is negligible at ambient conditions. Diamond is renowned as a material with superlative physical qualities, most of which originate from the strong covalent bonding between its atoms. In particular, diamond has the highest hardness and thermal conductivity of any bulk material. Those properties determine the major industrial application of diamond in cutting and polishing tools and the scientific applications in diamond knives and diamond anvil cells.

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ZME Science posts about nanodiamonds

Comet might have catastrophically collided with Earth 13,000 years ago

Wed, Mar 7, 2012

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A recently published study suggests that the Earth might have been visited by a giant space rock 13,000 years ago, an event which might have sparked an unusual cold period in the planet’s climate history. The Younger Dryas, also known as the Big Freeze, was a brief period of cold climatic conditions and drought which occurred [...]

asteroid, comet, extinction, mammals, nanodiamonds, Younger Dryas

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