LED digit 9.pngLED colon.pngLED digit 0.pngLED digit 9.pngLED am.png
April 1, 2020
News

From Wikipedia Signpost, VOLUME 16, 1 March 2020
* From the editor: The ball is in your court
* News and notes: Alexa ranking down to 13th
* Special report: More participation,
more conversation, more pageviews
* In the media: Mapping IP editors, Smithsonian
open-access, and coronavirus disinformation
* Discussion report: Do you prefer M or P?
* Arbitration report: Two prominent
administrators removed
* By the numbers: How many actions by
administrators does it take to clean up spam?
* Community view: The Incredible Invisible Woman
* In focus: History of The Signpost, 2015–2019
* Recent research: Wikipedia generates
$50 billion/year consumer surplus in the US alone
* From the archives: Is Wikipedia for sale?
* Traffic report: February articles, floating in the dark
* Gallery: Feel the love
* On the bright side: What's making you happy
this month?
* Op-Ed: What I learned as Wikimedia UK
Communications Coordinator
* Opinion: Wikipedia is another country
* Humour: The Wilhelm scream

From Wikipedia Signpost, VOLUME 16, 27 Jan 2020
* From the editor: Reaching six million articles is
great, but we need a moratorium
* News and notes: Six million articles on the English
language Wikipedia
* Special report: The limits of volunteerism and the
gatekeepers of Team Encarta
* In the media: Turkey's back up, but what's
happening with Dot-org and a new visual identity?
* Arbitration report: Three cases at ArbCom
* Traffic report: The most viewed articles of 2019
* Gallery: Wiki Loves Monuments 2019, we're all
winners
* News from the WMF: Capacity Building: Top 5
Themes from Community Conversations
* Community view: Our most important new article
since November 1, 2015
* In focus: Cryptos and bitcoins and blockchains,
oh no!
* Recent research: Is Wikipedia for novice
programmers useful to learn computing concepts?
* From the archives: A decade of The Signpost,
2005-2015
* On the bright side: What's making you happy
this month?
* WikiProject report: WikiProject Japan:
a wikiProject Report
* Humour: Predicting the 6,000,000th article
* Obituary: Remembering Wikipedia contributor
Brian Boulton
Tools
Read
Black hole - Messier 87 crop max res.jpg

A black hole is a region of spacetime exhibiting gravitational acceleration so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. The boundary of the region from which no escape is possible is called the event horizon. Although the event horizon has an enormous effect on the fate and circumstances of an object crossing it, no locally detectable features appear to be observed. In many ways, a black hole acts like an ideal black body, as it reflects no light. Moreover, quantum field theory in curved spacetime predicts that event horizons emit Hawking radiation, with the same spectrum as a black body of a temperature inversely proportional to its mass. This temperature is on the order of billionths of a kelvin for black holes of stellar mass, making it essentially impossible to observe.

Objects whose gravitational fields are too strong for light to escape were first considered in the 18th century by John Michell and Pierre-Simon Laplace. The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by David Finkelstein in 1958. Black holes were long considered a mathematical curiosity; it was during the 1960s that theoretical work showed they were a generic prediction of general relativity. The discovery of neutron stars by Jocelyn Bell Burnell in 1967 sparked interest in gravitationally collapsed compact objects as a possible astrophysical reality. Read more


Times are in UTC (refresh ↺)
Killarnee in Space.jpg
PHYThis user is familiar with physics
Blue Marble Western Hemisphere.jpgThis user lives on earth.
Don't destroy the earth!
🤗This user wants to be your friend
Lots of user boxes.jpgThis user has more to say than there are user boxes
🤫This user has already done a few things that he would rather not tell anyone about
People together.svgThis user dislikes insults
No Spam Barnstar Hires.pngThis user dislikes alternative facts and paid edits
AFIThis user has uploaded a few images
AFPThis user has created a few pages

Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. -- Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, At accusam aliquyam diam diam dolore dolores duo eirmod eos erat, et nonumy sed tempor et et invidunt justo labore Stet clita ea et gubergren, kasd magna no rebum. sanctus sea sed takimata ut vero voluptua. est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.



Lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquid ex ea commodi consequat. Quis aute iure reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint obcaecat cupiditat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. -- Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, At accusam aliquyam diam diam dolore dolores duo eirmod eos erat, et nonumy sed tempor et et invidunt justo labore Stet clita ea et gubergren, kasd magna no rebum. sanctus sea sed takimata ut vero voluptua. est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.

Committed identity: 73bec93ade4d6acce5dc772df916019f7f2b51b228be6e3fe73f70115556c053 is a SHA-256 commitment to this user's real-life identity.
Wikimedia Foundation
This is a Wikimedia global user page.
If you find this page on any site other than a Wikimedia project, you are viewing a mirror site. Be aware that the page may be outdated, and that the user this page belongs to may have no personal affiliation with any sites other than one or more Wikimedia projects. The original page is located at https://meta.wikimedia.org/wiki/User:Killarnee.
WikimediaMitglied40.png
I am a member of the association Wikimedia Deutschland – Gesellschaft zur Förderung Freien Wissens. Help us to strengthen and promote Wikipedia and other sources of free knowledge – become a member!
CC BY SA
I license all my publications on Wikimedia projects under the license Creative Commons „Attribution-ShareAlike 4.0 International“
I license all my publications on Wikimedia projects under the license Creative Commons „Attribution-ShareAlike 4.0 International“ unless otherwise noted. This means that for all copied content, the source (URL) and the author (I) must be specified and the content must be under the same license. The license of media may differ. Contents of pages that do not belong to Wikimedia are expressly excluded.