File:Tesla Colorado Springs laboratory exterior.jpg
Size of this preview: 447 × 599 pixels. Other resolutions: 179 × 240 pixels | 358 × 480 pixels | 573 × 768 pixels | 764 × 1,024 pixels | 1,819 × 2,437 pixels.
Original file (1,819 × 2,437 pixels, file size: 290 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Inventor Nikola Tesla's Colorado Springs laboratory, where during the period 1899 - 1900 he conducted experiments in wireless power transmission. It contained one of the largest Tesla coils ever built, which could generate potentials of the order of 12 million volts at a frequency of 30 - 150 kHz, creating artificial "lightning bolts" reportedly over 100 feet long. The 142 foot telescoping "antenna" mast shown, made of concentric sections of pipe with a 30 in copper covered wooden ball on top, could be extended upward from a hatch in the roof. The lab no longer stands, it was torn down and sold to pay Tesla's debts in the early 1900s. This is a view of the front of the building, with the Union Printers Home (which still stands) visible in the background. |
| Date | |
| Source |
|
| Author | Charles Alley, photographer |
Licensing
 |
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.
|
 |
 |
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.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:18, 16 February 2021 | | 1,819 × 2,437 (290 KB) | Szymonel | better quality |
| 11:34, 8 November 2015 |  | 650 × 871 (56 KB) | Chetvorno | User created page with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on fr.wikipedia.org
- Usage on pl.wikipedia.org
