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,
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