Atmosphere of Earth surface. The refractive index of air depends on temperature, giving rise to refraction effects when the temperature gradient is large. An example of such effects is the mirage. "Atmospheric circulation" is the large-scale movement of air through the troposphere, and the means (with ocean circulation) by which heat is distributed around Earth. The large-scale structure of the atmospheric circulation varies from year to year, but the basic structure remains fairly constant because it is determined by Earth's rotation rate and the difference in solar radiation between the equator and poles. The first atmosphere consisted of gases in the solar nebula,
Until the Earth Begins to Part Until the Earth Begins to Part Until the Earth Begins to Part is the debut studio album by Scottish indie folk band Broken Records, released on 1 June 2009 by 4AD. Prior to the album's release, the band released three singles: "If the News Makes You Sad, Don't Watch It" in April 2008, "Slow Parade" in August 2008, and "Lies" in November 2008. The first proper single from the debut album was the title track, released on 11 May 2009. An accompanying three-track EP CD, recorded live at Avalanche Records in Edinburgh, was given away for free to those who