Atmosphere of Earth trend begin above 11 km, where the temperature stabilizes through a large vertical distance through the rest of the troposphere. In the stratosphere, starting above about 20 km, the temperature increases with height, due to heating within the ozone layer caused by capture of significant ultraviolet radiation from the Sun by the dioxygen and ozone gas in this region. Still another region of increasing temperature with altitude occurs at very high altitudes, in the aptly-named thermosphere above 90 km. Because in an ideal gas of constant composition the speed of sound depends only on temperature and not on the gas
The Languages of Tolkien's Middle-earth are all the languages in "The Lord of the Rings", except for Entish (of which no real examples are given; the closest we get is Elvish words strung together in an Entish manner, a sort of Ent pidgin). The Languages of Tolkien's Middle-earth The Languages of Tolkien's Middle-earth is a book on the languages of Middle-earth by Ruth S. Noel. The first edition, entitled "The Languages of Middle-earth", was published in 1974 by Mirage Press, Baltimore. The revised version was published in 1980 by Houghton Mifflin. Ruth S. Noel, also known as Atanielle Annyn Noel, is the author of "The