Structure of the Earth obducted onto the continental crust and preserved as ophiolite sequences. Many rocks now making up Earth's crust formed less than 100 million (1) years ago; however, the oldest known mineral grains are about 4.4 billion (4.4) years old, indicating that Earth has had a solid crust for at least 4.4 billion years. Earth's mantle extends to a depth of 2,890 km, making it the thickest layer of Earth. The mantle is divided into upper and lower mantle. The upper and lower mantle are separated by the transition zone. The lowest part of the mantle next to the core-mantle boundary is
What the Bleep Do We Know!? Do We Know!?—Discovering the Endless Possibilities of Your Everyday Reality". HCI president Peter Vegso stated that in regard to this book, "What the Bleep is the quantum leap in the New Age world," and "by marrying science and spirituality, it is the foundation of future thought." On August 1, 2006 "What the Bleep! Down the Rabbit Hole - Quantum Edition" multi-disc DVD set was released, containing two extended versions of "What the Bleep Do We Know!?," with over 15 hours of material on three double-sided DVDs. The film features interview segments of: What the Bleep Do We Know!? What the