File:Tesla-bulb.jpg
Tesla-bulb.jpg (344 × 438 pixels, file size: 24 KB, MIME type: image/jpeg)
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Summary[edit]
DescriptionTesla-bulb.jpg |
English: Serbian-American inventor Nikola Tesla demonstrating wireless power transmission, probably in his New York laboratory in the 1890s. The bulb is a prototype "fluorescent" light he invented consisting of a partially evacuated glass bulb with a single metal electrode. Nearby but not visible there is one of his Tesla coil high voltage oscillators which produces a radio frequency electric field. The electric field ionizes the gas in the bulb, causing it to glow similar to a neon light. Tesla invented a residential wireless lighting system in the 1889s. |
Date |
circa 1900 date QS:P,+1900-00-00T00:00:00Z/9,P1480,Q5727902 |
Source | http://www.classictesla.com/photos/tesla/tesla.html |
Author | Unknown authorUnknown author |
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Licensing[edit]
Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Jamaica has 95 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Honduras has a general copyright term of 75 years, but it does implement the rule of the shorter term. Copyright may extend on works created by French who died for France in World War II (more information), Russians who served in the Eastern Front of World War II (known as the Great Patriotic War in Russia) and posthumously rehabilitated victims of Soviet repressions (more information). | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:50, 13 August 2012 | 344 × 438 (24 KB) | OgreBot (talk | contribs) | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2012-05-13 10:04:22 by Свифт | |
04:50, 13 August 2012 | 250 × 364 (5 KB) | OgreBot (talk | contribs) | (BOT): Uploading old version of file from en.wikipedia; originally uploaded on 2005-12-23 07:47:32 by Antidote | ||
19:55, 10 August 2012 | 344 × 438 (24 KB) | Свифт (talk | contribs) | new version | ||
17:08, 1 February 2008 | 362 × 491 (30 KB) | Alexenergy (talk | contribs) | {{Information |Description=Tesla |Source=Unknown |Date=1949 |Author=Unknown |Permission=public domain |other_versions= }} |
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