What kind of group does Vertical Horizon and Against the Current have in common?
Vertical Horizon Vertical Horizon is an American alternative rock band formed at Georgetown University in Washington, D.C. in 1991. The band is best known for their 1999 hit, "Everything You Want". Their most recent album, "Echoes from the Underground," was released in October 2013.
Gravity current In fluid dynamics, a gravity current is a primarily horizontal flow in a gravitational field that is driven by a density difference, hence gravity currents also sometimes being referred to as "density currents". When a gravity current propagates along a plane of neutral buoyancy within a stratified ambient fluid, it is known as a Gravity Current Intrusion. Typically, the density difference is small enough for the Boussinesq approximation to be valid. Gravity currents can be either finite in volume, such as the release from a dam break, or continuously supplied from a source, such as in doorway or lava flows.