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 (Transformers) Drift believes that Bumblebee is not a worthy leader, although they work very well in battle and Drift uses his chopper mode to lift Bumblebee to save Cade Yeager during the Autobots' raid in KSI with Attinger. During the battle in Hong Kong, Drift rides the Dinobot into the fight after helping Optimus free the Dinobots. Afterwards, Optimus Prime orders him along with the other Autobots to protect the Yeager family before he departs for space. Despite being a main character, Drift is not called by name in the film itself, though briefly during the scene where Galvatron chases the