User:GLPeterson

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Interests[edit]

Tesla's work in the area of wireless telecommunications.[edit]

Wikimedia Foundation[edit]

Wikipedia[edit]

Tesla
Colorado Springs Notes
Dr. Nikola Tesla Bibliography
Heterodyne
History of radio
Invention of radio
List of Tesla patents
Logic gate
My Inventions: The Autobiography of Nikola Tesla
Nikola Tesla
Nikola Tesla Museum
Spread spectrum
The Strange Life of Nikola Tesla (Now part of My Inventions.)
Teleforce
Telegeodynamics
Tesla electric car
Tesla Wardenclyffe Project (Now part of Wardenclyffe Tower.)
Wardenclyffe Tower
Wireless energy transfer

Wikiquote[edit]

Tesla

Wikisource[edit]

Tesla
Dr. Nikola Tesla and His Achievements

Wikimedia Commons[edit]

Tesla

Sample Image[edit]

Throughout space there is energy. ... it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature.

Tesla Colorado[edit]

Tesla Colorado

Summary[edit]

Publicity photo of a participant sitting in Nikola Tesla's laboratory in Colorado Springs circa 1900. The laboratory was built in 1899. Tesla sent a copy of this photograph to Sir William Crookes in England in 1901.

This image is a Double exposure. See [1] for more modern examples of the same technique with a contrasting photo of what a large tesla coil arc looks like in a single exposure.

The photo is cited as a double exposure by Carl Willis and Marc Seifer.

Tesla's Colorado Springs notes identify the photo as a double exposure.

To give an idea of the magnitude of the discharge the experimenter is sitting slightly behind the "extra coil". I did not like this idea but some people find such photographs interesting. Of course, the discharge was not playing when the experimenter was photographed, as might be imagined!

Source[edit]

from en:Image:Tesla colorado 444px.jpg 2005-10-19 02:27:48 . . Senordingdong . . 826×664

Conversely a copy of the original photograph was collected by Leland I. Anderson who sold the collection to Tesla Wardenclyffe Project. They now claim copyright. Note that the version in that archive includes a hand written note added in 1901 printing which doesn't appear on the more widely available image.

Licensing:[edit]

Public domain
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, 1923. See this page for further explanation.
United States
Dialog-warning.svg
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.

Tesla Colorado Adjusted[edit]

Tesla Colorado Adjusted

Summary[edit]

Publicity photo of Nikola Tesla sitting in his laboratory in Colorado Springs in December 1899. Photo was taken by Dickenson V. Alley, photographer at the Century Magazines. The laboratory was built in 1899. Tesla sent a copy of this photograph to Sir William Crookes in England in 1901.

This image is a Multiple exposure.

The photo is cited as a double exposure by Carl Willis and Marc Seifer.

Tesla's Colorado Springs notes identify the photo as a double exposure.

To give an idea of the magnitude of the discharge the experimenter is sitting slightly behind the "extra coil". I did not like this idea but some people find such photographs interesting. Of course, the discharge was not playing when the experimenter was photographed, as might be imagined!

Source[edit]

from en:Image:Tesla colorado 444px.jpg 2005-10-19 02:27:48 . . Senordingdong . . 826×664

Conversely a copy of the original photograph was collected by Leland I. Anderson who sold the collection to Tesla Wardenclyffe Project. They now claim copyright. Note that the version in that archive includes a hand written note added in 1901 printing which doesn't appear on the more widely available image.

Licensing:[edit]

Public domain This image (or other media file) is in the public domain because its copyright has expired.

This applies to Australia, the European Union and those countries with a copyright term of life of the author plus 70 years.


Dialog-warning.svg 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, Colombia has 80 years, and Guatemala and Samoa have 75 years, Russia has 74 years for some authors. This image may not be in the public domain in these countries, which moreover do not implement the rule of the shorter term. Côte d'Ivoire has a general copyright term of 99 years and Honduras has 75 years, but they do implement the rule of the shorter term.


This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.