Concept

Wikimedia Commons

Summary

Wikimedia Commons (or simply Commons) is a media repository of free-to-use images, sounds, videos and other media. It is a project of the Wikimedia Foundation. Files from Wikimedia Commons can be used across all of the Wikimedia projects in all languages, including Wikipedia, Wikivoyage, Wikisource, Wikiquote, Wiktionary, Wikinews, Wikibooks, and Wikispecies, or downloaded for offsite use. As of February 2023, the repository contains over 90 million free-to-use media files, managed and editable by registered volunteers. The idea for the project came from Erik Möller in March 2004 and Wikimedia Commons was started on September 7, 2004. In July 2013, the number of edits on Commons reached 100,000,000. Since 2018 it became possible to upload 3D models to the site in format. One of the first models uploaded to Commons was a reconstruction of the Asad Al-Lat statue which was destroyed in Palmyra by the ISIL in 2015. Various notable organizations had uploaded files to Commons. In 2012, the National Archives and Records Administration uploaded from its collection. In 2020, the Digital Public Library of America (DPLA) started uploading its collections to Commons. In 2022, DPLA uploaded more than 2 million files. Similarly Europeana, the website aggregating European cultural heritage, shares its digitised images through Commons. During the COVID-19 pandemic, as part of a collaboration with Wikimedia, the World Health Organization (WHO) uploaded its "" infographics to Commons. The stated aim of Wikimedia Commons is to provide a media file repository "that makes available public domain and freely-licensed educational media content to all, and that acts as a common repository for the various projects of the Wikimedia Foundation." The expression "educational" is to be understood according to its broad meaning of "providing knowledge; instructional or informative". Most Wikimedia projects still allow local uploads which are not visible to other projects or languages, but this option is meant to be used primarily for material (such as fair use content) which local project policies allow, but which would not be permitted according to the copyright policy of Commons.

Official source

https://en.wikipedia.org/wiki/Wikimedia_Commons

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Wikimedia Commons

Adsorption of organic matter on titanium surfaces with nano- and micro-scale roughness studied with the electrochemical quartz crystal microbalance dissipation technique

ERA-5 reanalysis results interpolated onto the five-minute average cruise track of the Antarctic Circumnavigation Expedition (ACE) during the austral summer of 2016/2017.

One-minute average horizontal wind velocity data (which has been corrected for air-flow distortion) from the Antarctic Circumnavigation Expedition (ACE) 2016/2017 legs 0 to 4.

Adsorption of organic matter on titanium surfaces with nano- and micro-scale roughness studied with the electrochemical quartz crystal microbalance dissipation technique

ERA-5 reanalysis results interpolated onto the five-minute average cruise track of the Antarctic Circumnavigation Expedition (ACE) during the austral summer of 2016/2017.

One-minute average horizontal wind velocity data (which has been corrected for air-flow distortion) from the Antarctic Circumnavigation Expedition (ACE) 2016/2017 legs 0 to 4.