Wikipedia

File:Joule's Apparatus (Harper's Scan).png

Original file (1,684 × 1,387 pixels, file size: 382 KB, MIME type: image/png)

Summary

Description
English: Engraving of James Joule's apparatus for measuring the mechanical equivalent of heat, in which altitude potential energy from the weight on the right is converted into heat at the left, through stirring of water.
Français : Gravure représentant l’installation expérimentale utilisée par James Joule pour mesurer l’équivalence entre chaleur et travail. L’énergie potentilelle d’altitude du poids, à droite, est convertie en chaleur par agitation de l’eau à gauche.
Date
Source Harper's New Monthly Magazine, Vol. 39, No. 231, p. 327, August 1869.
Author Jacob Abbott

Licensing

Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Joule%27s_Apparatus_(Harper%27s_Scan).png

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

media type

image/png

File history

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

Date/TimeThumbnailDimensionsUserComment
current11:18, 18 October 2009Thumbnail for version as of 11:18, 18 October 20091,684 × 1,387 (382 KB)AriadacapoCleaned up background and improved contrast.
04:51, 5 January 2007Thumbnail for version as of 04:51, 5 January 20071,684 × 1,387 (1.2 MB)Chowbok{{Information |Description=Engraving of Joule's apparatus for measuring the mechanical equivalent of heat. |Source=''Harper's New Monthly Magazine'', No. 231, August, 1869. |Date=1869 |Author=unknown |Permission=public domain }}{{PD-US}} [[Category:Harper

Global file usage

The following other wikis use this file:

View more global usage of this file.

Retrieved from "https://en.wikipedia.org/wiki/File:Joule%27s_Apparatus_(Harper%27s_Scan).png"