Ozone–oxygen cycle Ozone–oxygen cycle The ozone–oxygen cycle is the process by which ozone is continually regenerated in Earth's stratosphere, converting ultraviolet radiation (UV) into heat. In 1930 Sydney Chapman resolved the chemistry involved. The process is commonly called the Chapman cycle by atmospheric scientists. Most of the ozone production occurs in the tropical upper stratosphere and mesosphere. The total mass of ozone produced per day over the globe is about 400 million metric tons. The global mass of ozone is relatively constant at about 3 billion metric tons, meaning the Sun produces about 12% of the ozone layer each day. And if
Heat of the Sun and "The Sport of Kings" were each split into two parts, bringing the US broadcast to five episodes in total. The complete series was released on Region 2 DVD in the United Kingdom on 6 July 2009. Heat of the Sun Heat of the Sun is a British television crime drama series, created by Russell Lewis and Timothy Prager, that first aired on ITV on 28 January 1998. Set in 1930's Kenya, the series stars Trevor Eve as Superintendent Albert Tyburn, a Scotland Yard criminal investigations officer who is sent to work in Nairobi to reveal the underside of the