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 Most Holy Name of the Blessed Virgin Mary Name of Jesus. In Hebrew, the name Mary is "Miryam". In Aramaic the language spoken in her own time, the form of the name was "Mariam". Based on the root "merur", the name signifies "bitterness". This is reflected in the words of Naomi, who, after losing a husband and two sons lamented, " “Do not call me Naomi (‘Sweet’). Call me Mara (‘Bitter’), for the Almighty has made my life very bitter." Meanings ascribed to Mary's name by the early Christian writers and perpetuated by the Greek Fathers include: "Bitter Sea," "Myrrh of the Sea", "The Enlightened One," "The Light