Continental drift Continental drift Continental drift is the theory that the Earth's continents have moved over geologic time relative to each other, thus appearing to have "drifted" across the ocean bed. The speculation that continents might have 'drifted' was first put forward by Abraham Ortelius in 1596. The concept was independently and more fully developed by Alfred Wegener in 1912, but his theory was rejected by many for lack of any motive mechanism. Arthur Holmes later proposed mantle convection for that mechanism. The idea of continental drift has since been subsumed by the theory of plate tectonics, which explains that the continents
Drift: The Unmooring of American Military Power Drift: The Unmooring of American Military Power Drift: The Unmooring of American Military Power is a 2012 book by Rachel Maddow. Her first book, "Drift" explores the premise that the manner in which the United States goes to war has gradually become more secretive and less democratic. In "Drift", Maddow examines how American declarations of war have incrementally shifted from being congressionally approved to being centralized in the hands of the American president. The book's scope spans from the Vietnam War to the wars in Iraq and Afghanistan. Maddow has said that she wrote "Drift" because the topic deserved a