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.
background radiation definition. Low-level radiation at the surface of the Earth that comes from cosmic rays and from small amounts of radioactive materials in rocks and the atmosphere. Discover our greatest slideshows.
Radiation is energy that comes from a source and travels through space and may be able to penetrate various materials. Light, radio, and microwaves are types of radiation that are called nonionizing.