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Reminder! The Write-a-Thon approaches! On Wednesday, February 6th we're inviting all Citizens to come to the wiki, start a new article, and edit somebody else's new article. It's a Write-a-Thon! It's a wiki-whoopie, a cyber-social, a collaborative kegger!
Welcome! We are an encyclopedia project, and more. We are a different sort of Web 2.0 wiki: We aim at credibility and quality, not just quantity. Both the general public and credentialed experts are encouraged to get involved. We use our real names, not pseudonyms. We're both collegial and congenial. We have added [[:Category:CZ Live|over Template:Articles number articles]] (and many subpages), and over five million words. Announcement: Eduzendium encourages university instructors to assign CZ topics to students! Read our first year progress report. (Note how we've grown since!) Contribute to Citizendium! New authors and editors welcome! Accounts usually approved within a few hours. Start here. Learn about us For readers: About the Citizendium For authors: The Author Role For editors: The Editor Role For the press: Press The Monthly CZ News Report, The Citizen! (No. 2!) Initiatives Core Articles - tackle high priority topics Recruitment - help invite others to join Subpages - add other types of info to CZ Eduzendium - students write CZ articles for credit Support us We're a 501(c)(3) non-profit, and we need your support. If you shop at Amazon.com or Barnes & Noble, do so through our links! We'll get donations at no cost to you. (read more) - Search All Products. Link to us. Help increase our page rank by linking to us.	Some of our finest [ about ] Approved Articles Developed Articles (over 700) Draft of the Week [ about ] (CC) Photo: Jakub Sivek A wristwatch made by Swiss watchmaker Tissot. A wristwatch is a timepiece designed to be worn around the wrist, held on by a band. Modern wristwatches are often referred to simply as "watches", and are mostly electronic, despite having either an analog or digital appearance. There are wristwatches that are still entirely mechanical but because of the higher manufacturing and maintenance cost, these are becoming more rare and are considered "luxury items" or "antiques". [more...] New Draft of the Week [ about ] (PD) Photo: Elliott & Fry / Project Gutenberg Ernest Rutherford. Ernest Rutherford (born August 30, 1871, Nelson, New Zealand and died October 19, 1937, Cambridge, England) was the first person to split an atom and as the world’s first successful “alchemist,” changed nitrogen into oxygen. He postulated the existence of the proton and the neutron, naming them both, and provided the first nuclear model of the atom. He discerned that radioactivity is the product of subatomic change and thereby ended the chapter on Aristotelian physics which held that all matter is immutable and unchanging. He discovered and named alpha and beta particles emitted by radioactive materials, discovered radon (a radioactive gas), tritium (H3) and He3. Through his work and calculations of radioactive decay he coined the phrase half-life and provided definitive evidence for the extreme age of the Earth. [more...]