Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 0.74 micrometres (µm) to 300 µm. This range of wavelengths corresponds to a frequency range of approximately 1 to 400 THz, and includes most of the thermal radiation emitted by objects near room temperature. Infrared light is emitted or absorbed by molecules when they change their rotational-vibrational movements.

Much of the energy from the Sun arrives on Earth in the form of infrared radiation. Sunlight at zenith provides an irradiance of just over 1 kilowatt per square meter at sea level. Of this energy, 527 watts is infrared radiation, 445 watts is visible light, and 32 watts is ultraviolet radiation. The balance between absorbed and emitted infrared radiation has a critical effect on the Earth's climate.

Infrared light is used in industrial, scientific, and medical applications. Night-vision devices using infrared illumination allow people or animals to be observed without the observer being detected. In astronomy, imaging at infrared wavelengths allows observation of objects obscured by interstellar dust. Infrared imaging cameras are used to detect heat loss in insulated systems, observe changing blood flow in the skin, and overheating of electrical apparatus.

Sir Frederick William Herschel,KH, FRS, German: Friedrich Wilhelm Herschel (15 November 1738 – 25 August 1822) was a German-born British astronomer, technical expert, and composer. Born in Hanover, Germany Wilhelm first followed his father into the Military Band of Hanover, but emigrated to Britain at age 19. Herschel became most famous for the discovery of Uranus in addition to two of its major moons, Titania and Oberon. He also discovered two moons of Saturn and infrared radiation. Herschel is also known for the twenty-four symphonies that he composed.

Sir William Herschel lived most of his life in Slough, a town in Berkshire, England. He died in the town and was buried under the tower of St Laurence's Church, Upton, Slough. Herschel is very much respected in the town as evidenced by a number of memorials to him and his discoveries.

In 2011 a new Bus Station, whose design was inspired by the infrared experiment of Sir William Herschel was built in the centre of Slough. The Shopping centre in the town, 'The Observatory', also comes in memory of him.

Jeffrey Lee Pierce (June 27, 1958 - March 31, 1996) was an American singer, songwriter and guitarist. He was one of the founding members of the 1980s punk band The Gun Club. He was a founding member of The Red Lights before forming The Gun Club and released several solo albums.

As a teenager, Pierce moved from El Monte, a working-class industrial suburb East of Los Angeles, to Granada Hills, at the time a white working- and middle-class suburb in the San Fernando Valley. Pierce attended Granada Hills High School, where he participated in the drama program, acting in plays and writing several of his own brief experimental pieces.

Pierce's musical influences at this time tended heavily toward glam and progressive rock, and he was particularly fond of bands such as Sparks, Genesis, and Roxy Music. During the mid-70s, after attending a concert by Bob Marley (at which he was fascinated as much by Marley's shamanistic presence as by his music), Pierce became deeply engrossed in reggae; eventually he would travel to Jamaica to explore the music, a trip that left him ambivalent about the music's relevance to American culture. His infatuation with reggae overlapped with the emergence of punk rock, and Pierce became a fixture on the Hollywood scene as a writer for Slash and, to a lesser extent, as a musician. While his later interest in American blues was presaged by his devotion to the rootsiest forms of reggae, his love for the more theatrical, complex sounds of glam and prog showed up in his support for the No Wave movement in New York City.

Jeffrey Lee AM (born 1971) is the sole member of the Djok clan and the senior custodian of the 1,228 hectare Koongarra region in Australia's Northern Territory which is believed to contain a significant uranium deposit.

The land owned by the clan is surrounded by Kakadu National Park. He has become famous since he doesn't want to sell the high-valued fields to the French energy giant Areva who plans to extract 14,000 tonnes of uranium worth more than $5 billion.

In June 2011, UNESCO decided to make Koongarra a World Heritage Site and the process of incorporating it into the Kakadu National Park began.