Atmosphere of Earth (see the temperature section, below). Because the general pattern of the temperature/altitude profile is constant and measurable by means of instrumented balloon soundings, the temperature behavior provides a useful metric to distinguish atmospheric layers. In this way, Earth's atmosphere can be divided (called atmospheric stratification) into five main layers. Excluding the exosphere, the atmosphere has four primary layers, which are the troposphere, stratosphere, mesosphere, and thermosphere. From highest to lowest, the five main layers are: The exosphere is the outermost layer of Earth's atmosphere (i.e. the upper limit of the atmosphere). It extends from the exobase, which is located at
What We Did Last Summer What We Did Last Summer What We Did Last Summer – Robbie Williams: Live at Knebworth is a live DVD by Robbie Williams, recorded between 1–3 August 2003 at Knebworth, England as part of the Weekends of Mass Distraction Tour, the second last venue on the first leg of the tour. The album is a DVD companion to the live album "Live at Knebworth" (also known as "Live Summer 2003"). The songs "Nan's Song", "Better Man" and "Made Up Song" all feature Robbie Williams on acoustic guitar. The show's opening with Williams making an entrance hanging upside down on a