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
Golden Age of Television (2000s–present) Golden Age of Television (2000s–present) In the United States, the current Golden Age of Television has been a period widely regarded as being marked by a large number of high quality, internationally acclaimed television programs. The period is generally considered to have begun in either the mid-to-late 1990s, or the early 2000s. It is believed to have resulted from advances in technologies of media distribution, as well as a large increase in the number of hours of available television, which has prompted a major wave of content creation. Its name refers to the original Golden Age of Television which occurred