Welcome to Citizendium: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Larry Sanger
No edit summary
imported>Denis Cavanagh
(Congrats new draft and draft of the week :-))
Line 85: Line 85:


=== Draft of the Week <font size=1>[ [[CZ:Article of the Week|about]] ]</font> ===
=== Draft of the Week <font size=1>[ [[CZ:Article of the Week|about]] ]</font> ===
[[Image:Tissot watch.jpg|right|thumb|150px|{{#ifexist:Template:Tissot watch.jpg/credit|{{Tissot watch.jpg/credit}}<br/>|}}A wristwatch made by Swiss watchmaker [[Tissot]].]]
[[Image:Stentor_reading.jpg|thumb|150px|1901 photograph of a stentor (announcer) at the Budapest ''Telefon Hirmondó''.]]'''Telephone newspaper''' is a general term for the [[telephone]]-based news and entertainment services which were introduced beginning in the 1890s, and primarily located in large European cities. These systems were the first example of [[electronic]] [[broadcasting]], and offered a wide variety of programming, however, only a relative few were ever established. Although these systems predated the invention of [[radio]], they were supplanted by radio broadcasting stations beginning in the 1920s, primarily because radio signals were able to cover much wider areas with higher quality audio.
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 "[[watch]]es", 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".
<font size=1>[[Telephone newspaper|['''more...''']]]</font>
<font size=1>[[Wristwatch|['''more...''']]]</font>


=== New Draft of the Week <font size=1>[ [[CZ:New Draft of the Week|about]] ]</font> ===
=== New Draft of the Week <font size=1>[ [[CZ:New Draft of the Week|about]] ]</font> ===
[[Image:Rutherford.jpg|left|thumb|150px|{{#ifexist:Template:Rutherford.jpg/credit|{{Rutherford.jpg/credit}}<br/>|}}Ernest Rutherford.]]
'''Cosmology'''<ref>compare with ''cosmogony'' the study of or a theory of the creation and evolution of the universe.  Sometimes creation myths are termed cosmogonies. Greek ''cosmos'':order, the universe, the world + ''gonos'': creation, birth. [http://faculty.gvsu.edu/websterm/mythterms.htm] Webster, M. Grand Valley State University, Allendale Michigan</ref> is a branch of [[astronomy]] and of [[metaphysics]] committed to the study of the universe as a whole, of the contents, structure, and evolution of the universe from the beginning of time to the future.
'''[[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''' (H<sup>3</sup>) and He<sup>3</sup>. 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.
<font size=1>[[Cosmology|['''more...''']]]</font>
<font size=1>[[Ernest Rutherford|['''more...''']]]</font>
|}
|}

Revision as of 07:27, 4 February 2008

Logo400grbeta small.png
Natural Sciences       Social Sciences       Humanities
Arts       Applied Arts and
Sciences
      
Recreation

Reminder! The Write-a-Thon approaches!

Writeathon.png
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!

Group Status: check it out; Citizens, add yourselves!

Contribute to Citizendium!

Learn about us

Initiatives

Support us

Some of our finest [ about ]

Approved.png

Draft of the Week [ about ]

1901 photograph of a stentor (announcer) at the Budapest Telefon Hirmondó.
Telephone newspaper is a general term for the telephone-based news and entertainment services which were introduced beginning in the 1890s, and primarily located in large European cities. These systems were the first example of electronic broadcasting, and offered a wide variety of programming, however, only a relative few were ever established. Although these systems predated the invention of radio, they were supplanted by radio broadcasting stations beginning in the 1920s, primarily because radio signals were able to cover much wider areas with higher quality audio.

[more...]

New Draft of the Week [ about ]

Cosmology[1] is a branch of astronomy and of metaphysics committed to the study of the universe as a whole, of the contents, structure, and evolution of the universe from the beginning of time to the future. [more...]

  1. compare with cosmogony the study of or a theory of the creation and evolution of the universe. Sometimes creation myths are termed cosmogonies. Greek cosmos:order, the universe, the world + gonos: creation, birth. [1] Webster, M. Grand Valley State University, Allendale Michigan