Using Sound to Measure Ocean Warming
Renowned oceanographer and geophysicist Walter Munk talks about efforts to measure ocean warming through the use of sound--a process known as dark acoustic thermometry. Professor Munk notes that since the speed of sound ..
Using Tidal Power
Renowned oceanographer and geophysicist Walter Munk talks about the potential use of tidal power to generate electricity. He notes that the Bay of Fundy is frequently mentioned as a possible site for this sort of power g..
Wave Prediction and Military Operations
Renowned oceanographer and geophysicist Walter Munk talks about the role wave prediction played in the planning of amphibious landings during World War II.
Wave Prediction and the Normandy Invasion
Renowned oceanographer and geophysicist Walter Munk talks about the role wave prediction played in the planning of the Normandy Invasion during World War II. He recalls that the invasion was actually postponed one day be..
Wegener's Mistakes
Geophysicist and geologist Tanya Atwater talks about mistakes made by Alfred Wegener in formulating his theory of continental drift, some of which created doubt and skepticism among fellow geologists.
World in Motion: Earth's Tectonic Past and Future
Scientists attempt to reconstruct Earth's history so as to better understand the current state of geologic affairs, including those forces that cause plate movement.
World in Motion: Earthquakes and Plate Tectonics
With the advent of plate tectonics, it's become apparent that episodes of extreme geologic upheaval--like earthquakes--are much more than simply random events.
World in Motion: Heat, Convection and Plate Tectonics
Most scientists believe heat and convection probably play a major role in plate tectonics. And, yet, many questions remain.
World in Motion: Plate Boundaries and Plate Movement
Whether studying earthquakes, volcanoes, or other geologic events, scientists usually focus their attention on plate boundaries and plate movement.
World in Motion: Seamounts, Guyots and Island Arcs
Seamounts, guyots and island arcs form on the ocean floor as a result of a hot spot or mantle plume. While seamounts do not extend above the ocean surface, a guyot is tall enough to be eroded by wave activity and therefo..