Graphene smaller amplitude and higher frequency. This phenomenon, named "membrane effect", was predicted by Lifshitz in 1952. A prediction that was published in 2015 suggested a melting point of ≈4125 K. Recent and more sophisticated modelling has increased this temperature to at least 5000 K. At 6000 K (the sun's surface having an effective temperature of 5,777 K) graphene melts into an agglomeration of loosely coupled doubled bonded chains, before becoming a gas. The carbon–carbon bond length in graphene is about 0.142 nanometers. Graphene sheets stack to form graphite with an interplanar spacing of . Graphene is the strongest material ever
The Dark Side of the Moo The Dark Side of the Moo The Dark Side of the Moo is an early bootleg recording of the English progressive rock group Pink Floyd, featuring recordings not available on albums released in the US. Unlike other bootlegs containing previously unheard material, the album is made up of recordings that had at least one commercial release. The name is an obvious pun on "The Dark Side of the Moon", the band's most commercially successful album, and the front cover of "Atom Heart Mother", which featured a cow. The album was created by an anonymous label known as "Trixie Records" by