File:Photophone.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Photophone.jpg ‎(450 × 196 pixels, file size: 21 KB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary

[edit]
Description
English: Diagram of the Photophone. From [1]. The image is taken from Alexander Graham Bell's 1880 paper.
Date
Source http://histv2.free.fr/bell/bell5.htm
Author Alexander Graham BELL, Ph.D.,

Licensing

[edit]
Public domain

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.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current11:25, 3 June 2008Thumbnail for version as of 11:25, 3 June 2008450 × 196 (21 KB)Морган (talk | contribs){{Information |Description={{en|1=Diagram of the Photophone. From [http://histv2.free.fr/bell/bell5.htm]. The image is taken from Alexander Graham Bell's 1880 paper.}} |Source= http://histv2.free.fr/bell/bell5.htm |Author=Alexander Graham BELL, Ph.D., |D

You cannot overwrite this file.

The following 2 pages use this file:

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Photophone.jpg&oldid=378722802"