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
2016 World's Strongest Man final featured five first-time finalists, including three World's Strongest Man rookies, a number not seen since the days of the IFSA split in the mid-2000s. Two Americans, two Brits, two Poles, an Icelander, a Canadian, a Slovenian and a Georgian made up the field. Poland had not had a finalist in four years, while it was a first representation of Slovenia and Georgia in the World's Strongest Man final. In the first event, the Frame Carry, Laurence Shahlaei sprinted out to an early lead in the first heat but injured his calf on the way back. He was be able