Structure of the Earth easily than does the upper mantle (chemical changes within the mantle may also be important). The viscosity of the mantle ranges between 10 and 10 Pa·s, depending on depth. In comparison, the viscosity of water is approximately 10 Pa·s and that of pitch is 10 Pa·s. The source of heat that drives plate tectonics is the primordial heat left over from the planet’s formation as well as the radioactive decay of uranium, thorium, and potassium in Earth’s crust and mantle. The average density of Earth is . Because the average density of surface material is only around , we must
What We Do in the Shadows the silly to the satiric may bite, but the anemic pic isn't remotely weird or witty enough for cult immortality." "What We Do in the Shadows" grossed US $2 million in New Zealand and $3.4 million in the US. "What We Do in the Shadows" was released on DVD and Blu-ray on 26 November 2014 by Weltkino Filmverleih. A sequel to the film, which focused on the werewolves depicted in "What We Do in the Shadows", was in development but stopped due to some unresolved production issues. Originally rumoured to be titled "What We Do in the Moonlight", the working