Core–mantle boundary Core–mantle boundary The core–mantle boundary (CMB in the parlance of solid earth geophysicists) of the Earth lies between the planet's silicate mantle and its liquid iron-nickel outer core. This boundary is located at approximately 2891 km (1796 mi) depth beneath the Earth's surface. The boundary is observed via the discontinuity in seismic wave velocities at that depth due to the differences between the acoustic impedances of the solid mantle and the molten outer core. P-wave velocities are much slower in the outer core than in the deep mantle while S-waves do not exist at all in the liquid portion of
What We Do Is Secret (film) Campos from Film Threat said that "These actors and many more make "What We Do Is Secret" an absolute blast to watch and they do an undeniably perfect job of recreating this notorious scene." "What We Do Is Secret" was released on DVD on November 4, 2008. In addition to "Forming", which appears on the soundtrack album, the team of Shane West, Bijou Phillips, Lukas Haas, and Michael LeBlanc also perform the Germs songs "Circle One", "Lexicon Devil", "Richie Dagger's Crime", "Shut Down (Annihilation Man)", and "Lion's Share" in the film. The Bronx also performs the Black Flag song "Police