Unkindness Of Ravens Unkindness Of Ravens Unkindness Of Ravens is an Irish gothic rock/metal band formed in 2014 in Tipperary, Ireland. Their debut album "Under Stolen Skies" was released in November 2015 on now defunct label Dura Gesta Records [] based in Michigan in the United States. The band's first single "Leanan Sídhe" was released simultaneously with an accompanying video which explored themes around ancient Irish mythological characters and was filmed in The Burren and Slieve Bloom Mountains. The band is fronted by Darren Keegan and the band's style has been described as "melancholic and dramatic." The band was created by Keegan with
Specific energy Specific energy Specific energy is energy per unit mass. (It is also sometimes called "energy density," though "energy density" more precisely means energy per unit volume.) It is used to quantify, for example, stored heat and other thermodynamic properties of substances such as specific internal energy, specific enthalpy, specific Gibbs free energy, and specific Helmholtz free energy. It may also be used for the kinetic energy or potential energy of a body. Specific energy is an intensive property, whereas energy and mass are extensive properties. The SI unit for specific energy is the joule per kilogram (J/kg). Other units still