File:Cycloidal pendulum demonstration.png
Jump to navigation
Jump to search
Size of this preview: 658 × 600 pixels. Other resolutions: 263 × 240 pixels | 527 × 480 pixels | 747 × 681 pixels.
Original file (747 × 681 pixels, file size: 41 KB, MIME type: image/png)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]
| Description |
English: A physics demonstration in the 1870s of the isochronism of the cycloidal pendulum. An ordinary pendulum consisting of a weight swinging on a string is not isochronous; meaning its period is not quite independent of the width of the swing but gets slightly longer as the maximum angle of swing increases. In 1673 Christiaan Huygens showed that this was due to the circular arc of the pendulum; if the pendulum bob swung in a cycloid curve it would be isochronous. This demonstration shows a pendulum where the cord is limited by curving cycloid-shaped pieces of wood (EOD) forcing the pendulum bob to follow a cycloid curve. By timing its swing, it can be shown that this pendulum is isochronous; it has the same period for different width swings (A and B). |
| Date | |
| Source | Retrieved November 25, 2008 from Robert Stawell Ball (1871) Experimental mechanics: A course of lectures delivered at the Royal College of science for Ireland, MacMillan and Co., New York, p. 301, fig. 86 on Google Books |
| Author | In the preface (p. ix) the author credited the illustrations to a Mr. Collings and the engravings to a Mr. Cooper |
Licensing
[edit]
 |
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 | 09:39, 2 June 2014 | | 747 × 681 (41 KB) | Chetvorno (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
