Welcome to Citizendium

From Citizendium
Revision as of 13:21, 12 January 2021 by Pat Palmer (Talk | contribs) (updating next writeathon date)

Jump to: navigation, search
Start your scheming now for SUNDAY'S WRITE-A-THON! January 17, 2021
Theme: Round Things

Gear, wheels and automobiles, circles, cycles, spinning globes and disks, planets, marbles, crowns, gowns, orbits, circular arguments, and cyclic trends such as the seasons--as long as it's not square, it's fair. More opal than diamond, large as boulders, small as sand, conceptual ("Round robin"), or architectural ("Theater in the round"). Feel free to bring it if it rotates, circulates or gyrates, or simply lacks sharp edges.

If the theme topic is not for you, please just be a party pooper and drop by to write about anything else!

We know that not everybody has Sunday at the same time though, so to make it fair our Sunday lasts 48 hours! Therefore, the Write-a-Thon starts when it is Sunday at midnight (in Sydney) and ends when it becomes Monday in San Francisco.

Agriculture Earth Sciences Journalism Physics
Anthropology Economics Law Politics
Archaeology Education Library & Info. Sci. Psychology
Architecture Engineering Linguistics Religion
Astronomy Food Science Literature Robotics
Biology Games Mathematics Sociology
Business Geography Media Sports
Chemistry Health Sciences Military Theater
Classics History Music Topic Informant
Computers Hobbies Philosophy Visual Arts

Help Write Articles about our World

Welcome to Citizendium, a wiki for providing free knowledge where authors use their real names. We write the kinds of articles that Wikipedia can't write. We welcome anyone who wants to share their knowledge on virtually any subject. Our online community prides itself on being congenial and supportive.

See Recent Changes—an overview of articles we are writing now.

Become a member--it's free!

Our help system and forum
Questions and answers to help you find the information you need

Please help today!
Please make your donations here.
Donations go to keep our servers running. See our financial report.

Some of our finest


Citable Articles (158)
Developed Articles (1,165)
(17,246 total articles)

Who dares to teach must never cease to learn.
John Cotton Dana (1856–1929), American librarian and museum director.
       —add a quotation about knowledge or writing
Did You Know?

Featured Article: COVID-19

(CC) Image: NIAID
SARS-CoV-2 (in yellow), the virus that causes COVID-19, revealed in an electron microscope image as it emerges from cell surfaces (blue/pink).

COVID-19 is a disease that results from infection with SARS-CoV-2, a coronavirus that apparently first infected human populations in Wuhan in the People's Republic of China towards the end of 2019. The disease was first described as an atypical ‘viral pneumonia’, and by January 2020, the infectious agent had been identified as a novel coronavirus. The origin of the infectious agent is uncertain: the current consensus is that it probably originated in bats, and that a novel mutated form of the virus, in which a spontaneous mutation had enabled the virus to infect humans, may have infected humans through interactions between live bats and people at a wild food market in Wuhan.


The median incubation period for COVID-19 is estimated to be 4-5 days after exposure, but incubation periods of up to 14 days have been reported in exceptional cases. The spectrum of illness ranges from asymptomatic infection to severe pneumonia with acute respiratory distress syndrome and death. Of about 70,000 persons with COVID-19 in China, 81% cases were classed as mild, with no pneumonia or mild pneumonia, 14% as severe (defined as dyspnea, respiratory frequency ≥30 breaths/min, saturation of oxygen ≤93%, a ratio of arterial partial pressure of oxygen to fraction of inspired oxygen <300 mm Hg, and/or lung infiltrates >50% within 24 to 48 hours), and 5% as critical (respiratory failure, septic shock, and/or multiorgan dysfunction or failure).

Among more than 370,000 confirmed COVID-19 cases with reported symptoms in the USA, 70% of patients experienced fever, cough, or shortness of breath, 36% had muscle aches, and 34% reported headaches. Other reported symptoms included diarrhoea, dizziness, rhinorrhea, anosmia, dysgeusia, sore throat, abdominal pain, anorexia, and vomiting.