Continental drift plate tectonics theory. In particular, the English geologist Arthur Holmes proposed in 1920 that plate junctions might lie beneath the sea, and in 1928 that convection currents within the mantle might be the driving force. Holmes' views were particularly influential: in his bestselling textbook, "Principles of Physical Geology," he included a chapter on continental drift, proposing that Earth's mantle contained convection cells which dissipated radioactive heat and moved the crust at the surface. Holmes' proposal resolved the phase disequilibrium objection (the underlying fluid was kept from solidifying by radioactive heating from the core). However, scientific communication in the '30 and
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