Mantle (geology) Mantle (geology) The mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density. All terrestrial planets (including Earth), a number of asteroids, and some planetary moons have mantles. The Earth's mantle is a layer of silicate rock between the crust and the outer core. Its mass of 4.01 × 10 kg is 67% the mass of the Earth. It has
What the Bleep Do We Know!? Theater in Portland, Oregon, where it was filmed. Within several weeks, the film had appeared in a dozen or more theaters (mostly in the western United States), and within six months it had made its way into 200 theaters across the US. According to the makers of the film, "Bleep" is an expurgation of "fuck". William Arntz has referred to the film as "WTFDWK" in a message to the film's street team. The Institute of Noetic Sciences, a New Age research organization that "explores phenomena that do not necessarily fit conventional scientific models", has supported "What the Bleep Do We