Look up recorded information of Sparta, including demographics and local economy. Link to all levels of Sparta, government and their sites with services which provide public information. Current economy, business and housing data. Read about up to date current events and what is occurring in the Village of Sparta. Find out about the background of residents and recorded statistics.
Wiktionary(0.00 / 0 votes)Rate this definition: background radiation(Noun) ionizing radiation that is naturally present in the environment. Freebase(0.00 / 0 votes)Rate this definition: Background radiation is the ubiquitous ionizing radiation that people on the planet Earth are exposed to, including natural and artificial sources. Both natural and artificial background radiation varies by location.
Solar radiation. Solar radiation is radiant energy emitted by the sun, particularly electromagnetic energy. About half of the radiation is in the visible short-wave part of the electromagnetic spectrum. The other half is mostly in the near-infrared part, with some in the ultraviolet part of the spectrum [1].