Atmosphere of Earth relatively warm air above a colder one), and in others by a zone which is isothermal with height. Although variations do occur, the temperature usually declines with increasing altitude in the troposphere because the troposphere is mostly heated through energy transfer from the surface. Thus, the lowest part of the troposphere (i.e. Earth's surface) is typically the warmest section of the troposphere. This promotes vertical mixing (hence, the origin of its name in the Greek word τρόπος, "tropos", meaning "turn"). The troposphere contains roughly 80% of the mass of Earth's atmosphere. The troposphere is denser than all its overlying atmospheric
What Where are represented by the patterns of dots on the television screen. What characters, what bodies, finally exist in "What Where" are created by voice, less absent presences than present absences." Beckett referred to the lit playing area in this production as the "field of memory". "The clear indication is that what we are seeing is both a memory and a scenario: instructions come from the megaphone, the Voice of Bam controls what we see, puts the characters through their movements rapidly without words like a film running over its spools at rewind speed, and then starts again, occasionally stopping when