File:Geissler.jpg
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Summary
| Description |
English: Drawing of typical Geissler tubes, from 1911. Geissler tubes, invented by German glassblower Heinrich Geissler were the first gas discharge tubes. When a high voltage from an induction coil was applied between the two metal electrodes at the ends, the tube lit up with many glowing colors. They were made throughout the latter 1800s as novelties to demonstrate the new science of electricity. By 1910 the technology was commercialized and evolved into neon signs. |
| Date | |
| Source | Scanned from Webster's New International Dictionary of the English Language, 1911, G & C Miriam Co. Springfield, MA, received from the english wikipedia, article geissler tube, scanned by [1] |
| Author | Ulfbastel |
| Permission (Reusing this file) |
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Licensing
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This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
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This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:15, 26 May 2007 | | 134 × 134 (6 KB) | Ulfbastel | {{Information |Description=geissler tubes |Source=Scanned from Webster's New International Dictionary of the English Language, 1911, G & C Miriam Co. Springfield, MA, received from the english wikipedia, article geissler tube, scanned by [http://en.wikipe |
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