Image:1D normal modes (280 kB).gif

From Wikipedia, the free encyclopedia

Wikimedia Commons logo This is a file from the Wikimedia Commons. The description on its description page there is shown below.
Commons is attempting to create a freely licensed media file repository. You can help.

Summary

Description

Shown above are longitudinal acoustic phonons in a 1D-lattice. These six different phonons have identical amplitudes (y) but have wavelengths of the following increments of molecular pitch: λ = 2, 2.4, 3, 4, 6, and 12. Their ratios of frequency (ωk) over their natural frequency (ω) range from 0.52 to 2.00 ωk/ω.
Source

This is a compressed version of the Image:1D normal modes.gif phonon animation on Wikipedia Commons that was originally created by Régis Lachaume and freely licensed. The original was 6,039,343 bytes and required long-duration downloads for any article which included it. This version is 4.7% the size of the original and loads much faster. This version also has an interframe delay of 40 ms (v.s. the original’s 100 ms). Including processing time for each frame, this version runs at a frame rate of about 20–22.5 Hz on a typical computer, which yields a more fluid motion. Greg L 00:41, 4 October 2006 (UTC). (from http://en.wikipedia.org/wiki/Image:1D_normal_modes_%28280_kB%29.gif)
Date

(Upl. in Commons 7 March 2007)
Author
  • Original Uploader: en:User:Greg L at 00:41, 4 October 2006.
Permission

GFDL
Other versions 1D normal modes.gif original, larger version.

Licensing

GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
Subject to disclaimers.

The following pages on the English Wikipedia link to this file (pages on other projects are not listed):
Retrieved from "http://en.wikipedia.org/wiki/Image:1D_normal_modes_%28280_kB%29.gif"