Few areas of geophysics are today progressing as rapidly as basic geomagnetism, which
seeks to understand the origin of the Earth's magnetism. Data about the present …

When an incident wave scatters off of an obstacle, it is partially reflected and partially
transmitted. In theory, if the obstacle is rotating, waves can be amplified in the process …

Understanding fluid flows in planetary cores and subsurface oceans, as well as their
signatures in available observational data (gravity, magnetism, rotation, etc.), is a …

In this work the authors draw upon their expertise in geophysical and astrophysical MHD to
explore the motion of electrically conducting fluids, the so-called dynamo effect, and …

In the past decades, laboratory experiments have contributed significantly to the exploration
of the fundamental physics of space plasmas. Since 1908, when Birkeland invented the first …

Flow between concentric spheres of radius ratio η= ri/ro= 0.35 is studied in a 3 m diameter
experiment. We have measured the torques required to maintain constant boundary speeds …

Rotational superradiance was predicted theoretically decades ago, and is chiefly
responsible for a number of important effects and phenomenology in black-hole physics …

We investigate the properties of small-amplitude inertial waves propagating in a differentially
rotating incompressible fluid contained in a spherical shell. For cylindrical and shellular …

We present new experimental results from the University of Maryland Three Meter
Geodynamo experiment. We drive a fully turbulent flow in water and also in sodium at …

Wave equations containing spatial derivatives which are higher than second order arise
naturally in the context of condensed matter systems. The solutions of such equations …