File:Perpetual Motion by Norman Rockwell.jpg
From KYNNpedia
Size of this preview: 442 × 599 pixels. Other resolutions: 177 × 240 pixels | 354 × 480 pixels | 566 × 768 pixels | 1,273 × 1,726 pixels.
Original file (1,273 × 1,726 pixels, file size: 769 KB, MIME type: image/jpeg)
Summary
| Description |
English: Cover of the October 1920 issue of Popular Science magazine, painted by American illustrator Norman Rockwell. It depicts an inventor working on a perpetual motion machine. The device shown is a "mass leverage" device, where the spherical weights on the right have more leverage than those on the left, supposedly creating a perpetual rotation, but there are a greater number of weights to the left, balancing the device. |
|||||||||||||||||||||||
| Date | ||||||||||||||||||||||||
| Source | Downloaded 2009-06-29 from Popular Science magazine, Vol.97, No.4 (October 1920), Bonnier Corp. New York, ISSN 0161-7370, front cover on Google Books | |||||||||||||||||||||||
| Author |
|
|||||||||||||||||||||||
| Permission (Reusing this file) |
Public Domain in USA - published before 1923 in USA | |||||||||||||||||||||||
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.
|
 |
 |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 08:05, 14 December 2018 | | 1,273 × 1,726 (769 KB) | wikimediacommons>Wow | File:Perpetual Motion by Norman Rockwell.jpg cropped 1 % horizontally, 1 % vertically using CropTool with precise mode. |
File usage
The following page uses this file:
