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Avebury is the site of a large henge and several stone circles, dating to around 5000 years ago (read more)

Featured Article: Nucleotide

A space filling image of ATP
A nucleotide is a chemical compound with three components: a nitrogen-containing base, a pentose (five-carbon) sugar (relatively simple carbohydrates), and one or more phosphate groups. Although best known as the structural units of the nucleic acids DNA and RNA, which store and transfer genetic information in organisms, nucleotides participate in nearly all biochemical processes.

The ubiquitous presence of nucleotides from viruses and bacteria to humans reflects a common base and unity among all living organisms despite the remarkable diversity of life.

Popular Article: Television

Samsung LE26R41BD HDTV
Television (or TV) (from the Greek tele, meaning "far," and the Latin visio, meaning "sight") is a telecommunication system for broadcasting and receiving moving pictures and sound over long distances. The term has come to refer to all aspects of the system, from the receiver set to the programming and transmission.

With the growth and influence of the television industry, it is not surprising that TV sets rank among consumer goods purchased most often, and the number of sets sold per year is used as an economic indicator. Almost every household in the United States has at least one television set. The average household might have two or three, with a set even in the bathroom.