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
Society for the Study of Theology Society for the Study of Theology The Society for the Study of Theology (SST) is the leading British organization for theologians in academy, church, and society. The Society is the leading scholarly society for the study of theology in the U.K. The Society for the Study of Theology promotes excellence in the study of Christian Theology by facilitating and shaping theological thought, conversation, and community. In particular, the Society's object is to identify and discuss important themes, questions and dialogues which call for theological engagement. The Society holds an annual conference. Its first was held in Cambridge in 1952 on