Welcome to Citizendium

The first Biology Week took place here from Sep 22-28, 2008.

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A new wiki encyclopedia project—and more! We aim at reliability and quality, not just quantity. We welcome collaboration with everyone who has knowledge, broad or narrow, about any of the world's innumerable subjects. We write under our real names—and are both collegial and congenial. We now have [[:Category:CZ Live|Template:Articles number+ articles]] and are gathering speed. Eduzendium participants write for academic credit. Write for the Citizendium—knowledge is fun! Sign up—we need both authors and editors (you might be both!) Then, get a quick start. Remember, we are an open, young project—it's easy to get involved! Learn about us Why Citizendium? For readers: About | FAQ For contributors: Authors | Editors | How to collaborate For the press Important new community pages WatchKnow will be a free, non-profit, K-12 educational video contest, currently under planning and development. Myths and Facts: Citizendium may be different from what you think! We are organizing Workgroup Weeks--our biggest initiative yet. Citizens, get involved, and watch our numbers multiply! Support us Our mission is educational, non-profit, global, and free. Shop at our Amazon.com and Barnes & Noble links and we'll get donations at no cost to you. Link to us so search engines can better find us.   (CC) Photo: Tanya Puntti Each sentence you add is another drop in an expanding sea of words.

Some of our finest [ about ] Approved Articles Developed Articles (over 800) "Share your knowledge. It's a way to achieve immortality." — Life's Little Instruction Book by Jackson Brown and H. Jackson Brown, Jr. Article of the Week [ about ] Lead is a chemical element. It is a heavy metal, and is abundant in nature. Lead has the symbol Pb (from the Latin Plumbum). Its atomic number is 82. Lead is a very corrosion-resistant, dense, ductile, and malleable blue-gray metal that has been used for at least 5,000 years. Early uses of lead included building materials, pigments for glazing ceramics, and pipes for transporting water. Prior to the early 1900's, uses of lead were primarily for ammunition, brass, burial vault liners, ceramic glazes, leaded glass and crystal, paints or other protective coatings, pewter, and water lines and pipes. The advent of the electrical age and communications, which were accelerated by technological developments in World War I, resulted in the addition of bearing metals, cable covering, caulking lead, solders, and type metal to the list of lead uses. With the growth in production of public and private motorized vehicles and the associated use of starting-lighting-ignition (SLI) lead-acid storage batteries and terne metal for gas tanks after World War I, demand for lead increased. Later, radiation shielding in medical analysis and video display equipment and as an additive in gasoline also increased usage. [more...] New Draft of the Week [ about ] Although bound up with the tradition of the ‘special library’, information management differs from such earlier concepts in its focus on all kinds of information and a concern for the relationship between information provision and organizational performance. In many special libraries there had long been responsibility for managing internal documentation of various kinds, especially research reports. The history of this development is usefully explored by Black, Muddiman and Plant [1] who note the emergence of information management concepts following the end of the First World War, with the formal organization of ‘information bureaux’ in the establishment of ASLIB (the Association of Special Libraries and Information Bureaux) in the UK in 1924. Some techniques, however, were even older, witness Kaiser’s work on indexing [2][3]. Indeed, we can date many of the ideas of what is now called ‘information management’ (although ‘documentation’ is used as a near equivalent in much of Europe) to the founding by Otlet and La Fontaine of the International Institute of Bibliography in 1895 [more...]