What kind of group does Vertical Horizon and Against the Current have in common?
Against the Current (band) Against the Current (often abbreviated as ATC) is an American pop rock band based in Poughkeepsie, New York and formed in 2011. The band currently consists of lead vocalist Chrissy Costanza, guitarist Dan Gow, and drummer Will Ferri. The group gained a sizable YouTube following after posting their covers of popular songs from a variety of different artists.
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.